Showing posts with label Liver Basics. Show all posts
Showing posts with label Liver Basics. Show all posts

November 23, 2013

Get To Know 18 Tips on How to Improve Liver Function - Healthreviewcenter

A new article published on the site Healthreviewcenter.com offers 18 tips on how to improve liver function.

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Seattle, Wa (PRWEB) November 22, 2013

The article on the site Healthreviewcenter.com introduces 18 tips on how to improve liver function. This article is written for people who want to find a healthy diet to boost liver function. Firstly, the writer indicates that people should not drink too much alcohol because alcohol can damage liver cells, leading to cirrhosis. The writer also encourages people to do aerobic exercises regularly to boost the blood oxygenation. In fact, aerobic exercise can help people to increase heart rate, change breathing patterns, increase the amount of oxygen they take in, and speed up the delivery of oxygen to their liver. Besides, the painkiller acetaminophen and cholesterol drugs can harm liver, so people should not take too much of these ingredients over time. Finally, people should stay away from chemicals, insecticides, aerosol products, leaning products, and additives in cigarettes because they contain toxins that can harm liver cells.

Secondly, the writer gives people 9 super healthy foods that are proven good for the liver. The writer indicates that people should drink coffee regularly to lower their risk of liver diseases. People should also make use of beets because this food is rich in a particular phytonutrient called “betaine” that supports the liver function in converting fat to energy. Beets also help purify the blood, and they are capable of absorbing heavy metals and reducing toxins in the liver. People should also eat cruciferous vegetables, such as broccoli, cauliflower, cabbage, brussels sprouts, and kale because they are good sources of sulfur that can help detoxify the liver.

Jessie from the site Healthreviewcenter.com says: “This article is useful for me and people who are suffering from any liver disease because it offers an extremely healthy diet for liver. Moreover, this article does not encourage people to use any drug, pill, or medication, so everything it offers is 100% natural. One more thing, the foods and ingredients that the writer reveals are available in any food store, so people can apply easily and instantly. Therefore, people who want to learn how to have a healthy liver should read this entire article and make use of the remedies that the writer introduces. I believe that people will get good results after applying these useful tips.”

If people want to read the full article, they should visit the website: http://healthreviewcenter.com/health/18-tips-on-how-to-improve-liver-function/.

About the website: Healthreviewcenter.com is the site built by Tony Nguyen. The site supplies people with tips, ways, programs, methods and e-books about many health issues. People could send their feedback to Tony Nguyen on any digital products via email.

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April 20, 2012

World Liver Day 2012: Things you ought to know about your liver

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Dr Ashwin Mallya, Apr 19, 2012 at 8:03 AM

Your liver is a one and a half kg organ that sits behind your right rib cage. If you did not have your liver, you would not be able to process nutrients like carbohydrates, proteins, fats, vitamins and minerals from your food. Your body would not get rid of all the toxins and microbes. Your blood would probably never clot! The liver plays a vital role in maintaining the body’s metabolic balance.

As the liver performs a variety of important functions it is extremely vulnerable to a variety of metabolic, toxic, microbial, circulatory and cancerous insults. Awareness of the liver’s functions and what all can cause liver disease can help you take the road to great health.

Let’s start with a few commonly known diseases that can affect the liver:

  1. Fatty Liver: This disease was traditionally known to occur in association with excessive alcohol intake but now the non-alcoholic variant is reaching epidemic proportions in the developed countries. Known to occur in association with metabolic syndrome consisting of hypertension, diabetes, obesity and hyperlipidemia this disease occurs because of faulty fat metabolism in the liver. Prevention is the best treatment and if uncontrolled can even end up in liver failure.
  2. Viral hepatitis is an infection of the liver that is caused by a group of viruses that have particular affinity for the liver. Out of these, hepatitis A and E are caused by eating food contaminated with the virus. Hepatitis B, C and D are acquired through blood, body fluids and by unprotected sexual contact.
  3. Alcoholic hepatitis is inflammation (swelling) of the liver due to ingestion of alcohol.
  4. Cirrhosis or scarring of the liver is caused mostly due to alcohol intake, viral infection due to hepatitis B and C , bile duct disease or iron overload. It is among the top 10 causes of death in the world. The liver ceases to function normally due to irreversible damage. It progresses gradually and can lead to end stage liver disease.
  5. Drug induced damage caused due to the various medicines we take and chemicals we are exposed to. As liver is the major detoxifying organ in the body, it is subject to an enormous variety of drugs and chemicals. Always be careful when consuming medicines. Even over the counter medications like paracetamol can cause fulminant liver failure. Never take medications beyond the recommended dosage. It is always better to consult a doctor before taking medications and follow up at the slightest evidence of ill health. Certain herbal medications could also cause damage to the liver and so can medications for tuberculosis.
  6. Liver cancer can be caused by many factors including viral infections (hepatitis B and C), chronic alcoholism, certain food contaminants, genetic factors, cirrhosis of the liver.

What are the symptoms of liver disease?

This depends on the onset and rapidity of progression of liver damage.

In case of acute liver damage (due to drugs, toxins, viral hepatitis A, B or E), there may be fever with yellowish discoloration of sclera (the white of the eye), skin and urine. In most cases this may be self-limiting. In a small percentage, this may progress to fulminant liver failure leading to coma, altered blood clotting, kidney failure, secondary infections and may even require liver transplantation.

In chronic liver damage (due to hepatitis B, C or alcohol), the symptoms would be more gradual in onset:

  • Jaundice or yellowish discoloration of skin and the white of the eye.
  • Swelling especially in the legs and feet due to low protein levels.
  • Enlargement of breasts known as gynecomastia (in a male).
  • Reddish spider like discolorations (spider nevi) beneath the skin especially over the chest.
  • Accumulation of fluid (ascites) in the abdomen giving it a protruded appearance.
  • Problems with clotting of blood
  • Vomiting of blood or blood in stools
  • Altered senses with change in behavior, confusion, forgetfulness and other symptoms related to the brain also known as hepatic encephalopathy.
  • Gradual worsening of kidney function

The above symptoms are not comprehensive and it is best to consult a doctor at the earliest onset of any of the above.

Tips for a healthy liver:

Diet and Alcohol: A balanced diet with low fat content would be well suited to prevent fatty liver. Alcohol is best avoided.

Exercise: Plays a role in controlling cholesterol and in the metabolism of fat thus indirectly protecting the liver.

Vaccination: Hepatitis B is preventable by vaccination. Three shots of the hepatitis B vaccine taken over three months can provide long term protection against the dreaded disease.

Hygienic food and drinking water: Hepatitis A and E are known to spread via the oral route. Think twice before having road side delicacies! Boil the water that you intend to drink. It is the best way to prevent communicable diseases.

Avoid self-medication: Various drugs can damage the liver if taken indiscriminately

Regular check-ups: Once diagnosed with liver disease, be regular in follow ups with the doctor. Reversible damage can become irreversible if neglected.

This World Liver day, let’s strive not to abuse our liver, one of the most useful organs that we have. Let’s treat it with the love and respect it deserves.

Source

April 10, 2012

What Does The Liver Do: Liver Enzymes

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Tuesday, April 10, 2012

The liver performs thousands of biochemical functions. In order to perform these functions, the liver contains thousands of enzymes. Enzymes are unique proteins that act as catalysts to speed the rate of particular chemical or metabolic reactions. Liver enzymes, therefore, help the liver to do its job. Enzymes utilized by the liver primarily exist in the cells of the liver. Under normal circumstances, these enzymes are also present in the bloodstream in low concentrations. However, when the liver is not working as it should, these enzymes spill over into the bloodstream. Liver function tests are blood tests that are used to detect the presence of enzymes in the bloodstream to determine liver disease.

Liver enzymes perform functions special for the liver though they are present in other organs of the human body. One category of liver enzymes is the aminotransferases or transaminases. These enzymes are used to detect the presence of liver damage or disease. Another category of enzymes include alkaline phosphatase (ALP) and gamma glutamyl transpeptidase (GGT). These enzymes are used to detect the presence of malfunction of the biliary tract.

The aminotransferase category includes the enzymes alanine aminotransferase (ALT), sometimes referred to as serum glutamic pyruvic transaminase (SGPT), and aspartate aminotransferase (AST), also known as serum glutamic oxaloacetic transaminase (SGOT). In particular, the aminotransferases act as a catalyst in the transference of amino group donor molecules to recipient molecules. In other words, these enzymes take out pieces from one structure to assist with production of another structure. The aminotransferases are the most sensitive and widely used of the liver enzymes and are normally present in the bloodstream in low concentrations. An increase in the bloodstream of either of these may indicate hepatocyte (liver cell) damage.

Although ALT is found primarily in the liver, lesser amounts can also be found in other organs, such as the kidneys, heart and muscles. When an increase of ALT levels has been detected in the bloodstream, it is usually due to liver damage, such as inflammation or cell death. An elevation in AST levels may be due to diseases of other organs, such as the heart. For this reason, clinicians determine the ratio of AST to ALT to determine if indeed the liver has been damaged.

ALP and GGT enzymes also participate in the movement of amino acids across the cellular membrane as well as metabolism. Like the aminotransferases, these enyzmes expand into the bloodstream when the biliary tract is obstructed, either within the liver or outside the liver in the bile channels. Since ALP is also found in organs other than the liver, such as bone, placenta and intestine, GGT levels are screened when there is an elevation in ALP levels. Since GGT does not increase in the presence of these other diseases, clinicians use the results from both tests to determine the cause of ALP elevation.

Clinicians use these tests together to determine the presence of liver disease or damage. Alone, these tests cannot allow a definite diagnosis but together they provide a better overall picture of liver function.

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February 23, 2012

50 ways to love your liver

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Wendell Fowler also can be followed at chefwendellfowler.blogspot.com

Published February 23rd, 2012

By Wendell Fowler

Apparently Hannibal Lecter didn’t know the liver relates to almost every vital function of the holy temple, or he wouldn’t have suggested it be consumed with a glass of Chianti.

The large meaty organ processes everything we ingest, breathe and absorb through the skin, and plays a major role in digestion and metabolism, regulating production, storage and release of sugar, fats and cholesterol. The liver fires up protective immune function, thins or thickens blood, assists lymph flow, converts food to energy, removes ammonia, makes bile that breaks down fats, stores extra blood for emergencies and filters your blood of the stew of pollutants inhaled daily. It produces enzymes, hormones, blood proteins and clotting factors. Finally, the liver assists the temple with house cleaning by filtering infectious organisms and poisons from the blood and eliminating the toxic bilge. Regular medical care, a healthy, sun-blessed living diet, moderate exercise and controlling stress support it.

Ancients knew the liver and bile are critical to a healthy appetite. When bile doesn’t flow smoothly, you lose your appetite. The ancients felt too much or too little blood loss during menstruation was related to poor liver function and interfered with storing and releasing blood. Chinese and Ayurvedic healing medicine relate anger with poor liver and gallbladder function. Someone chronically angry would be prescribed liver therapy to open, cleanse and cool the liver and bile.

Pharmaceuticals with alarming side effects, street drugs, Chemotherapy, over-the-counter medications, excess alcohol, Tylenol, antibiotic drugs, fried and fatty foods and toxic substances in the American food supply brutalize the loyal, hardworking organ. Cut down on the amount of deep-fried and fatty foods that you and your family consume. Doctors believe the risk of gallbladder disorders (including gallstones, a liver-related disease) can be reduced by avoiding high fat and cholesterol rich foods. Desserts, snacks and sugary thirst-quenchers are high in calories because of the sugar and fat they contain.

Your liver adores beets and beet greens, preferably organically grown, since they are the richest source of betaine, a natural liver detoxifier and bile thinner, and aren’t sprayed with liver-stressing chemicals. Shred raw beets then combine the beauties with a drizzle of raw flax oil, honey and lemon juice or puree them in a blender with orange juice. That’s right: raw.

Explore culinary seasonings that sustain the liver: lemon juice, onion, vinegar, garlic, pepper, mustard, cloves, sage, thyme, turmeric, cinnamon and licorice. Milk thistle has been used for centuries in Germany as a liver stimulator and rejuvenator. Eat more high-fiber foods, such as fresh fruits and vegetables, whole grain breads, ground flax or chia seed, brown rice and quinoa and granola. Fresh food provides the best preventive maintenance and contains nutrition that enriches the liver. Include them regularly in your cooking. Next, get over your fear of healing cruciferous broccoli, cauliflower, Brussels sprouts, berries, green tea, yogurt, whole grains, beans, nuts and seeds and red grapes.

Revere your liver so it won’t end up in a pan smothered with sautéed onions.

Source

January 31, 2012

Demystifying the liver and its diseases

From the February 2012 Issue of Clinical Advisor

CLINICAL FEATURE

Rebecca Duke, MSN, APN February 01, 2012

At a glance
  • Functions of the liver include protein synthesis, detoxification, and metabolic processes.

  • Liver problems are often discovered incidentally through routine laboratory testing or screening blood tests.

  • Liver disease can have either an infectious or noninfectious etiology, such as hepatitis, nonalcoholic fatty liver disorders, and drug-induced injury.
  • Patients with nonalcoholic fatty liver disease or nonalcoholic steatohepatitis whose liver enzymes normalize after modificaiton of risk factors can be monitored conservatively and may avoid a liver biopsy.
  • Imaging is becoming more sensitive to fatty infiltration in the liver. Both ultrasonography and MRI can be useful.

The liver has a multitude of functions, including protein synthesis, detoxification, and metabolic processes. Problems in the liver are often discovered incidentally through routine lab testing or screening blood tests that include liver enzyme determinations. Abnormal results can make any practitioner nervous. Liver disease is like a puzzle: You need to put the pieces together to see the whole picture.

Liver function tests

A more descriptively accurate term for liver function tests (LFTs) might be "liver injury tests." Some tests in the hepatic profile can tell you how well the liver is functioning. The most common determinations are those for bilirubin, aspartate aminotransferase (AST), alanine aminotransferase (ALT), total protein, albumin and alkaline phosphatase levels.

When an abnormal result is found, the clinician must figure out its origin. One of the most common reasons for referral to a hepatologist is elevated results on the LFTs. The tests most often found to have abnormal results include those for AST and ALT.

Hepatocyte injury. For AST and ALT to become elevated, there must be injury to the hepatic tissues rich in these enzymes. The injury results in changes in cell permeability and leakage of AST and ALT into the blood. The more damage there is to the hepatocytes, the greater the leakage. ALT is more specific for liver injury than AST. Elevations in AST can also be the result of cardiac and muscle disease.

Cholestasis. Patients with cholestasis will have elevations in their bilirubin, alkaline phosphatase (AP), and γ-glutamyltranspeptidase (GGT) levels. These elevations indicate damage to the bile ducts. AP is associated with the biliary tract but not specific to it. Elevations in AP can also be attributed to bone, placental and intestinal sources.

In the liver, AP is located in the hepatocyte membrane bordering the bile canaliculi. When this membrane is damaged, the enzyme is shed and AP levels in the blood become elevated. To help determine the etiology of an elevated AP level, the test can be fractionated into its various sources. This test will provide the concentration of AP attributable to each source as well as its percentage of the total. Depending on the laboratory, a normal AP level is usually <120 units/L.

GGT, like AP, is not specific to the liver. Alcohol intake can also cause elevations in the GGT. Sometimes the GGT can help differentiate the AP level with a hepatic etiology from other sources.

Bilirubin is a major breakdown product of hemoglobin and is derived from RBCs that have died and been removed by the spleen. During the degradation process, heme is separated out and the globin protein is transferred to the liver, where it is metabolized further in a process called conjugation.

Bilirubin that has gone to the liver and undergone further metabolic process is called conjugated bilirubin. This form of bilirubin is water-soluble and goes into the bile. The bilirubin that does not undergo this process is called unconjugated or indirect bilirubin.

On laboratory reports, the most commonly reported level is the total bilirubin. A patient who develops jaundice will typically have a total bilirubin level that is at least two to three times the upper limit of normal (normal level being <1.0 mg/dL). The total bilirubin level must be fractionated to further differentiate the causes of any abnormality.

Synthetic function. The tests of synthetic function in the liver include prothrombin time (PT)/international normalized ratio (INR), platelet count and albumin level. Abnormal results indicate disease that has caused loss of proteins or inability to synthesize proteins. If a patient presents with hypoalbuminemia, thrombocytopenia (platelet count <150,000/µL) and/or an elevated INR, the clinician should add advanced liver disease or cirrhosis to the list of differentials.

Other liver disorders. The last two liver tests worthy of mention are miscellaneous assays of the ammonia and the α-fetoprotein (AFP) levels. An ammonia level is usually measured when a patient presents with acute changes in mental status because ammonia can cross the blood-brain barrier and become toxic to the brain. In liver disease, ammonia may build up because the liver cannot process it quickly enough or because an enzyme that breaks down the ammonia is absent or is present only in insufficient quantities. This can lead to hepatic encephalopathy in the patient with cirrhosis.

Ammonia levels, while useful, are primarily measured to rule out causes of changes in mental status. Ammonia levels are not always measured in hepatology practices. If the patient is mentating well, an elevated ammonia level may not mean anything. To use an old cliché, treat the patient, not the laboratory results.

AFP is a tumor marker for hepatocellular carcinoma (HCC) in patients with liver disease. The normal AFP level is <20 ng/mL. Most patients with hepatitis C have AFP levels that are <100 ng/mL. Any elevation in AFP warrants further investigation. Most concerning are elevated levels that continue to climb or levels found to be significantly elevated on first screening (i.e., in the several thousand range). The latest guidelines from the American Association for the Study of Liver Diseases do not recommend using AFP alone as a screening or diagnostic tool for HCC.1,2

Fibrosis markers. Blood tests that can estimate the degree of fibrosis in the liver are relatively new. Each test, or marker, utilizes various methods to determine the stage of fibrosis. There are four stages of fibrosis in liver disease, so most test results will list four percentages. The F stage with the highest percentage is the one most likely in that particular patient. Fibrosis marker determinations are primarily beneficial for patients with minimal disease or advanced liver disease; the test is not as specific for the middle stages of fibrosis.

There are several fibrosis markers on the market, and each takes into account multiple factors when determining F scores. The advantage to fibrosis markers is that they are blood tests and not an invasive liver biopsy. Fibrosis markers can be useful in those for whom a liver biopsy is contraindicated or when the patient refuses the invasive procedure.

Clinical scenarios

So now you have a patient with abnormal results on his or her liver function tests. Contrary to common belief, a basic workup can be done by any primary-care provider. Begin by determining if the abnormality is new or if the patient has a history of the problem.

Once the chronology of the event is determined, the abnormality can be further classified as hepatocellular, cholestatic or a combination of both. The most common issues are mild elevations of the aminotransferases (usually <100 IU/L). These tend to be hepatocellular in etiology. While significant elevations of the aminotransferases (>1,000 IU/L) can also be hepatocellular in origin, the differential diagnosis list in that instance is usually limited to such acute disorders as drug-induced liver disease, shock liver, fulminant hepatic failure, autoimmune hepatitis and acute hepatitis B.

In the patient with new-onset, mild AST/ALT elevations, the first step is to rule out alcohol ingestion and laboratory error, so rechecking the laboratory tests is indicated. How soon to repeat the tests depends on what the abnormality is. Most authorities recommend that testing be repeated anywhere from two to four weeks to three months later. If repeat testing reveals persistent AST/ALT elevations, i.e., >50 IU/L but <100 IU/L, the next step is to rule out diseases that cause hepatocellular injury. These can include both infectious and noninfectious disorders, such as hepatitis, nonalcoholic fatty liver disorders, and drug-induced injury.

Infectious hepatitis. One frequent cause of elevated AST/ALT is infectious hepatitis, most commonly hepatitis A, B, or C. (Other forms of infectious hepatitis are less common and will not be discussed in this article.) Acute infectious hepatitis can present with both elevated liver enzymes and vague symptoms, including anorexia and abdominal pain.

Hepatitis A is always acute in its presentation, whereas hepatitis B and C can have both acute and chronic presentations. Most acute hepatitis manifests with significantly elevated aminotransferases (>1,000 IU/L). For the patient who presents with acute elevations of AST/ALT, infectious hepatitis should always be in the initial differential.

Infectious hepatitis is easily ruled in or out with serologic testing, which must take into consideration the patient's risk factors. The risk factors for hepatitis A, B, and C are presented in Table 1. Whether the patient has risk factors or not, these diseases should always be considered in such applicable populations as those with history of IV drug use (for hepatitis C virus [HCV] and hepatitis B virus [HBV]), men who have had sex with men (HBV), children born to a mother with HBV or HCV, and persons living in an area endemic for HBV.

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Therapy for acute hepatitis comprises rest, nutrition, and fluids. A few cases of acute hepatitis will progress to acute liver failure. Prompt referral to a specialist is warranted for acute hepatitis that is not improving. Prevention of infectious hepatitis via vaccination is always recommended for appropriate individuals, such as health-care workers, people with liver disease or other chronic disease and those traveling to endemic areas.

Chronic hepatitis presents with mild AST/ALT elevations. According to the World Health Organization (WHO), approximately 350 million people live with chronic HBV infection3 and approximately 3% of the world's population has been infected with HCV.4

Hepatitis B. Patients who have chronic HBV infection may present with abnormal liver enzyme levels, fatigue, malaise, poor appetite and right upper-quadrant abdominal pain. Hepatitis B is diagnosed by serologic testing. The testing process is complex, and diagnosis relies on a number of assays, including those for hepatitis antigens (hepatitis B surface antigen [HBsAg] and hepatitis Be antigen [HBeAg]) and their respective antibodies (anti-HBsAg and anti-HBeAg), as well as antibodies to hepatitis B core antigen (anti-HBc immunoglobulin [Ig] M and IgG), and hepatitis B DNA.

The combination of results from all these assays will determine the diagnosis. For example, a patient who tests positive for HBsAg may have an acute or a chronic infection; results of the other assays will help to differentiate acute from chronic disease and determine the patient's immune status. Table 2 provides a summary of possible results and their interpretation.

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Most adults clear HBV before it progresses to chronic infection. However, for the patient who develops chronic disease, several medical therapies are available, including both oral and subcutaneous injection treatments, such as pegylated interferon alpha 2a (Pegasys), entecavir (Baraclude), adefovir (Hespera), telbivudine (Tyzeka), and tenofovir (Viread). Therapy should be started when the ALT elevation is more than two times the upper limit of normal, the patient has decompensated cirrhosis, or liver biopsy shows evidence of disease.5,6 Treatment of chronic hepatitis B requires the guidance of a specialist.

Hepatitis C. The diagnosis of HCV infection is also based on serologic testing. Although several tests can be involved, the testing process is less complex than it is for HBV infection. Testing for HCV usually starts with an assay for the HCV antibody. This is only a screening test and is not diagnostic of HCV infection. The HCV recombinant strip immunoblot assay (RIBA) can help differentiate between exposure to HCV and actual infection.

Patients who test positive for HCV antibody need to be tested for virus in the serum. HCV RNA polymerase chain reaction (PCR) quantitative or HCV RNA qualitative testing is usually done next. Results of the qualitative test will be positive if any virus is detected in the blood, and the quantitative test will report the actual viral content. Some tests can detect a result as low as 43 IU/mL. A positive qualitative or quantitative test result is diagnostic for HCV infection. The actual viral count does not impact the severity of the disease. A patient with a viral load of 3 million copies/mL may not have more severe disease than the patient with a viral load of 1,000 copies/mL.

Therapy for chronic HCV infection is more complex than for other forms of hepatitis. Currently approved therapies include either daily doses of interferon alfacon-1 (Infergen) or weekly administration of pegylated interferon (Pegasys, Peg-interferon) with ribavirin (Copegus, Rebetol, RibaTab, Ribasphere). Two new adjunct therapies — the protease inhibitors telaprevir (Incivek) and boceprevir (Victrelis) — were approved last year. These therapies are used in conjunction with pegylated interferon and ribavirin in treating HCV infection. They are currently approved for use in those with hepatitis C disease.

Telaprevir and boceprevir can be used in a person with cirrhosis, but the individual must have well-compensated disease as evidenced by a Child-Turcotte-Pugh classification score of "A." The protease inhibitors are not currently approved for use in the post-transplant population. The new triple therapy had doubled the rates of sustained viral response (SVR). The SVRs of therapies range from 20% to 80%, depending on the degree of fibrosis and the genotype of the disease.

Patients with a confirmed diagnosis of HCV infection must be referred to a specialist for further evaluation. The specialist may choose to treat the patient or to perform liver biopsy. Because genotype 1 disease has the poorest rates of SVR, a liver biopsy is usually done to assess the extent of fibrosis.

Treatment is recommended in those with more advanced disease (stage 2+ fibrosis). Biopsy is not routinely done in patients with genotype 2 or 3 disease. Response to therapy is greatest in genotype 2 and 3 disease, and treatment is recommended in eligible patients regardless of disease severity.

Autoimmune hepatitis. This form of hepatitis primarily affects women. The age at diagnosis varies. Autoimmune hepatitis has links to other autoimmune diseases, such as thyroiditis, Sjögren syndrome, and diabetes mellitus. At presentation, the patient may have either mild or significant elevations of the aminotransferases. Autoimmune hepatitis is also ruled out or in with laboratory testing. The serum test for autoimmune hepatitis is the antinuclear antibody test. A liver biopsy is often done to further diagnose the disease as well as to stage the extent of inflammation and fibrosis.

Treatment of autoimmune hepatitis usually consists of high-dose prednisone (started at around 40 mg/day) and possibly another immunosuppressant medication, such as azathioprine (Azasan, Imuran). The prednisone can be slowly tapered in some patients. Management of this disease requires the supervision of a specialist.

NAFLD and NASH. Another common etiology of mild aminotransferase elevations is nonalcoholic fatty liver disease (NAFLD) or a more progressive form of obesity-related liver disease called nonalcoholic steatohepatitis (NASH). NAFLD is an equal-opportunity disease, affecting 20% of adults and 5% of children.7

NASH results from fat deposition in the liver (steatosis). Possible sequelae to this disorder include cirrhosis and HCC.2 We are still learning why patients progress from NAFLD to NASH. Elevations in fatty acids/triglycerides, obesity, and insulin resistance have all been associated with NASH. (See Table 3 for a more extensive list of associated conditions.) While some data have linked elevated triglycerides with NASH, the problem likely occurs when fatty acids accumulate because the fatty acid supply overwhelms triglyceride synthesis.2

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NAFLD and NASH will likely not progress within the first few months of diagnosis. Many clinicians will monitor a patient after initial workup and make medical recommendations to lose weight or control diabetes mellitus (if applicable). Patients whose liver enzymes normalize after modifying their risk factors can be monitored conservatively and may avoid a liver biopsy. If the aminotransferase elevations persist, however, the patient requires referral to a specialist for a liver biopsy and further evaluation.

Ultrasonography and MRI have become more sensitive to fatty infiltration in the liver. The gold standard in diagnosing NAFLD and NASH is a liver biopsy. Liver biopsy carries risk factors and should be ordered only after other workup has been completed. Figure 1 is an algorithm for the evaluation of patients suspected of having NAFLD.

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Conclusion

Just as the liver has numerous functions, so does it have the potential for dysfunction. Primary-care clinicians with an understanding of basic liver function can begin the diagnostic process, recognizing that patients with more serious liver disorders may require the supervision of a hepatologist.

Rebecca Duke, MSN, APN, is a transplant nurse practitioner at Northwestern Medical Faculty Foundation in Chicago.

References

1. Bruix J, Sherman M. Management of hepatocellular carcinoma: an update. Hepatology. 2011;53:1020-1022.

2. Manns et al. American Association for the Study of Liver Diseases Diagnosis and Management of Autoimmune Hepatitis Guidelines. 2010.

3. World Health Organization. Hepatitis B.

4. Holmberg S. "Chapter 3: Infectious Diseases Related to Travel - Hepatitis C." CDC Yellow Book. 2012.

5. Lok AS, McMahon BJ. Chronic hepatitis B. Hepatology. 2001;34:1225-1241.

6. Lok AS, McMahon BJ. Chronic hepatitis B: update 2009. Hepatology. 2009;50:661-662.

7. Neuschwander-Tetri BA, Caldwell SH. Nonalcoholic steatohepatitis: summary of an AASLD Single Topic Conference. Hepatology. 2003;37:1202-1219.

Source

February 13, 2011

Loving your liver: Organ crucial to good health

Published: Friday, February 11, 2011
By Dr. Allen Yudovich
Henry Ford Health System

Of all the body’s vital organs, the heart is the one that gets the most attention this month. But right underneath it is one of the hardest-working organs we have, our liver. It doesn’t carry the touch of romance the heart does, but it is crucial to our well-being.

Our livers change food into nutrients and filter out harmful substances. The vital functions it performs include:

• converting nutrients into energy, hormones and other essential chemicals;
• cleansing toxic substances (including alcohol) from the blood, then neutralizing or rerouting them for disposal;
• processing drugs;
• storing vitamins, minerals, sugars and iron;
• regulating fat and cholesterol; and
• manufacturing bile -- a fluid that helps digest food.

The liver is also generally very good at keeping itself healthy. When it stops functioning well, the term liver disease is often used. But there are actually many forms of liver disease. When symptoms appear, they may include jaundice (a yellowing of the skin or eyes), abdominal pain, lose of appetite and weight loss, dark urine and pale bowel movements. Sometimes the first indication of a problem is found in the results of liver function tests ordered by a physician.

Cirrhosis

Some forms of liver disease are more common in older adults. Cirrhosis most frequently develops after years of alcohol abuse, although moderate drinkers sometimes develop it as well. Over time, the liver becomes scarred and loses its ability to do what it was designed to. Other liver diseases, including hepatitis B, C and D, can also lead to cirrhosis.

As the disease progresses, symptoms that may develop include nausea, fatigue, itching, vomiting blood and a swollen abdomen.

When cirrhosis is caused by excessive drinking, avoiding alcohol and eating a healthy diet may be beneficial because of the liver’s ability to regenerate itself. Medication is used to treat cirrhosis caused by viral hepatitis.

Cirrhosis is also one of the risk factors for liver cancer, which most often affects people older than 40. It also affects men more frequently than women. Other risk factors include smoking, heavy drinking, hepatitis B and C and cancer in another area of the body.

Liver cancer

Liver cancer can be either primary (meaning it started in the liver) or secondary (beginning elsewhere in the body and spreading to the liver). Secondary liver cancer is far more common than primary, because blood that may carry cancer cells is filtered through the liver.

Symptoms include abdominal pain or swelling, jaundice and weight loss, but these rarely appear in the early stages of the disease. Various tests are used to confirm a cancer diagnosis. These may include a biopsy, CT scan, an MRI, ultrasound and blood tests.

Treatment options include surgery, chemotherapy and radiation, along with newer treatments such as radiofrequency ablation, which uses heat to destroy tumors, and cryosurgery, which uses cold to do the same thing. A liver transplant could also be necessary.

Treatment is most successful when the cancer is diagnosed in an earlier stage and when the patient does not also have cirrhosis.

Hepatitis

All forms of hepatitis are inflammations of the liver. The symptoms are similar to other forms of liver disease, but are often mild. A blood test is needed to confirm a hepatitis diagnosis. Treatment ranges from bed rest and avoiding alcohol to medication, depending on the form of hepatitis someone has.

Primary biliary cirrhosis

This is a chronic inflammation of the liver’s bile ducts that affects women more than men. Those who contract it are usually between 40 and 60 years old. It can lead to cirrhosis and eventually destroy the bile ducts. A healthy diet and medication can alleviate the symptoms, which include itching, fatigue and jaundice. A liver transplant may eventually be recommended.

Alcoholic liver disease

As its name implies, this disease is tied to alcohol abuse, although not all heavy drinkers develop it. Alcoholic liver disease generally develops over a period of years and leads to cirrhosis. Symptoms often don’t appear in the early stages of the disease. When they are present they may include abdominal pain, jaundice, fever, excessive thirst and a loss of appetite. They may also worsen after heavy drinking.

All of the above symptoms could also be indicators of a different illness. Anyone who experiences these symptoms should discuss them with their physician.

Allen Yudovich, M.D., is a gastroenterologist at the Henry Ford Medical Center - Fairlane in Dearborn. For an appointment call (800) HENRYFORD.

Source

December 17, 2010

WHAT KINDS OF DOCTORS TREAT LIVER DISEASE?

Written by Melissa Palmer, MD

Melissa Palmer, MD is the author of " Dr. Melissa Palmer's Guide of Hepatitis and Liver Disease". (Published 2004. Penguin Putnam).

There are many different kinds of doctors who evaluate and treat people with liver disorders. First, there is the family physician or internist. These doctors are also referred to as primary care physicians (PCPs). They are often the first ones to discover that something is wrong with the liver. From there, the patient is customarily referred to a specialist—either a gastroenterologist, hepatologist, or infectious disease specialist—for further evaluation and treatment. This specialist may be in a practice located at an academic institution or in a private practice located in a community setting. The difference between the various types of doctors a patient with liver disease encounters may sometimes be confusing. Hopefully, this section will clarify these differences in order to eliminate any future confusion.

The Medical Doctor (MD)

Medical Doctors (MDs) are physicians who have successfully completed four years of medical school training. After graduating from medical school, these doctors must complete a minimum of one additional year of training in a hospital in what is known as an internship. They must then pass a state-licensing exam in order to practice medicine in that state. After obtaining their license, they have the right to practice medicine in that state. However, many doctors choose to continue their training in a hospital by undergoing a residency—typically an additional two years.

After completing their residency, these doctors must take an exam in order to become board certified in a specialty, such as family medicine or internal medicine. Doctors may practice medicine whether or not they pass this exam. Doctors who become family doctors or internists have general knowledge in all areas of medicine including the heart, lungs, kidneys, stomach, intestines, and liver. At this time, a doctor may decide to undergo additional specialty training, known as a fellowship, in a specific area of internal medicine, such as gastroenterology, hepatology, or infectious diseases, in order to become an expert in these areas.

The Doctor of Osteopathy (DO)

Doctors of osteopathy (DOs) are commonly referred to as osteopaths. These are doctors who graduated from a four-year osteopathic school. They must also complete a one-year internship in a hospital in order to be eligible to obtain a license to practice medicine. Osteopaths can also choose to undergo an additional two-year residency, and may thereafter undergo specialty training in a specific area of medicine.

Osteopaths tend to focus on treating “the body as a whole,” particularly on the body’s ability to heal itself. Osteopaths typically center their treatment on the musculoskeletal system, the muscles and bones, often using techniques such as bone manipulation and a form of massage.

The Family Physician

A family physician is a doctor—either an MD or a DO—who has been trained to prevent, diagnose, and treat medical conditions in people of all ages. The family physician takes care of the general health of the patient and his entire family. Their training is not limited to internal medicine, but includes some training in psychiatry, obstetrics, gynecology, and surgery. These are the “Marcus Welby” doctors, seemingly able to handle almost any general problem.

There is a separate board certification examination specifically for family practitioners. This is known as the family practice boards. Specializing in family practice medicine requires an additional three years’ training beyond medical school. The amount of exposure to, and degree of expertise in liver disease varies among family practitioners. However, family physicians have not undergone additional specialized training in liver disease.

The Internist

An internist is a doctor—an MD or a DO—who is trained to prevent, diagnose, and treat medical conditions in adolescents and adults, including the elderly. Internists have received some basic training in subspecialty areas of internal medicine, including gastroenterology, hepatology, and infectious diseases. Internists are trained to treat both straightforward and complex problems of the internal organs. They are also trained in emergency medicine and critical care medicine. There is a separate board certification examination specifically for internists. It is known as the internal medicine boards. Specializing in internal medicine requires an additional three years’ training beyond medical school.

The amount of exposure to, and degree of expertise in liver disease varies among internists. Internists have the option of continuing their training in a subspecialty of internal medicine. This requires applying for, and being accepted into, a fellowship in the subspecialty of their choice. gastroenterology, hepatology, and infectious diseases are among the many subspecialties of internal medicine.

The Gastroenterologist

A gastroenterologist is an internist who has completed specialty training in the treatment of digestive disorders. Digestive disorders include disorders of the esophagus, stomach, small and large intestines, pancreas, gallbladder, and liver. In order to become board certified in gastroenterology, the doctor must first become board certified in internal medicine. In order to become eligible to even take the examination for board certification in gastroenterology, a gastrointestinal (GI) fellowship lasting an additional two to three years beyond an internal medicine residency must be completed.

During the course of their two to three years of training in gastroenterology, some gastroenterologists have little exposure to patients with liver disease. On the other hand, some gastroenterologists have a great deal of exposure to patients with liver disease during the course of their gastroenterology specialty training. Thus, the level of experience and expertise among gastroenterologists in diagnosing and treating liver disease varies greatly. It is important for the patient to determine the gastroenterologist’s level of expertise in liver disease prior to establishing a long-term medical relationship with this type of doctor.

The Hepatologist

A hepatologist is the most experienced and qualified type of doctor to treat people with liver disease. Since there is currently no separate board certification examination in the field of hepatology, there is no official definition of a hepatologist. However, there are specialized training programs for doctors who are focused solely on liver disease. These are known as hepatology fellowships and typically last from one to two years. Over the course of a hepatology fellowship, a doctor receives comprehensive training in the diagnosis and treatment of liver disease. This specialty training typically includes extensive exposure to all liver diseases, including those that are rare and infrequently seen. This intense training in liver disease is rarely matched in a gastroenterology fellowship.

A physician who successfully completes a hepatology fellowship is considered a hepatologist. Most hepatologists, although not all, are also gastroenterologists. These doctors have successfully completed both a hepatology and a gastroenterology fellowship. Occasionally, gastroenterologists who have not completed a fellowship in hepatology nonetheless focus their medical practice primarily on the diagnosis and treatment of people with liver disease. While these physicians do not have a separate diploma in the field of liver disease, they may also be considered hepatologists.

For many reasons, it is to the patient’s advantage to choose a hepatologist to treat his liver disease. The patient can be virtually assured that the hepatologist will have substantial experience in the diagnosis and treatment of the full range of liver diseases. Furthermore, hepatologists are likely to be the first to learn about the most up-to-date therapies—both FDA-approved and experimental—and to incorporate them into their practices. However, whether someone chooses to see a gastroenterologist or a hepatologist, it is important to find a doctor who is willing to work with him as an equal partner in the healing process.

Infectious Disease Specialists

An infectious disease specialist is an internist who has completed a specialty fellowship in infectious diseases of all types. Many infectious disease specialists treat people with liver disease caused by infectious - such as hepatitis B and C (both of which are caused by viruses). During the course of their two years of training in infectious diseases, some infectious disease specialists have little exposure to patients with viral hepatitis. On the other hand, some infectious disease specialists receive a great deal of exposure to patients with viral hepatitis during the course of their specialty training. Thus, the level of expertise among infectious disease specialists in diagnosing and treating viral hepatitis varies greatly. It is important for the patient to determine the infectious disease specialist’s level of expertise in treating hepatitis B or C prior to establishing a long-term medical relationship with this type of doctor. It should be stressed that infectious disease doctors have no special expertise treating liver diseases that are not caused by infections – such as alcoholic liver disease or autoimmune hepatitis.

Academic Physicians Versus Private Practitioners

People searching for a doctor should be aware of the differences between aca­demic physicians and private practitioners. Each type of doctor has pros and cons that must be carefully weighed by the patient as part of the process of choosing a physician.

The Academic Physician

An academic physician is a doctor who has accepted a faculty position on staff at a hospital. Often, though not always, the hospital will be associated with a medical school. These doctors spend a portion of their time teaching medical students and physicians-in-training (interns, residents, and fellows) about their specialty—in this case hepatology. Also, some academic physicians spend a considerable percentage of their time conducting research, as opposed to treating patients. Although some of this research is performed in a laboratory, some is within the context of clinical trials involving patients. (See Chapter 11 of my book for a discussion of clinical trials.)

These physicians are usually, but not always, board certified in their specialty, and some have contributed significantly to the advancement of the medical profession in their specialty. However, this is not always the case. Academic physicians carry a title such as assistant professor, associate professor, or professor. This title is based on a number of factors, including, but not limited to, how long they have been practicing in their specialty, their leadership skills, their teaching skills and the contributions made by them in their specialty. No one should ever assume that the qualifications of a given academic physician are superior to those of a given private practitioner merely based on the academic physician’s title or employment by a hospital. This may even hold true of the department chairman.

Academic physicians are generally expected to stay abreast of the newest developments in their field. Such a physician may have initiated or prompted the investigation of a new drug or may have played a significant role in the development of a new medical procedure. Frequently, but not always, academic physicians are involved in conducting investigational trials on the most promising experimental drugs. However, the requirements of entering a study at an academic center may be very rigid and typically involve a risk that the patient will be given a placebo (dummy drug).

Doctors at an academic institution usually allot some time to patient care. However, since these physicians must also teach, the patient will sometimes be evaluated and treated primarily by a doctor-in-training rather than the more experienced faculty member he was expecting. Although these doctor trainees must discuss the patient with the academic physician, the patient will have no assurance of ever meeting with the academic physician, sometimes the patient will only briefly meet with the academic doctor whose credentials prompted his visit in the first place. This may occur on the initial consultation and/or on subsequent visits. Thus, the patient may experience, but cannot count on a close personal relationship with this doctor. Therefore, it is important for a patient making an appointment with a physician who is on staff at a hospital to inquire whether he will be seeing the doctor in a clinic setting or in some type of private office. And, whether he will be seeing the doctor he is requesting the appointment with, opposed to his associates or staff, both for the initial consultation and follow-up visits.

Finally, since academic physicians are typically based within a hospital, their office hours are often limited. Rarely, if ever, will these physicians make themselves available for routine appointments after 5:00 pm, before 8:00 am, or on weekends. And since these doctors have so many other duties in the hospital, such as meetings, teaching, and lecturing, typically only two or three days at most will be devoted to seeing patients, and then only for a limited number of hours. The result of such limited hours is that typically the patient will only be able to book an appointment several weeks, if not months, in advance. Furthermore, hospital-based physicians are typically away from their practice many weeks out of the year attending meetings and lecturing.

The Private Practitioner

A private practitioner is a physician who typically focuses his career on patient care. Usually, but not always, private practitioners take care of people who are admitted to local hospitals in their communities. That is, these private practitioners have either admitting or consulting privileges at one or more local hospitals. Some private practitioners may also be affiliated with an academic institution, where they also treat patients and occasionally teach. And, some private practitioners do not see patients in a hospital setting at all but only in their office for consultations.

Private practitioner physicians may be in solo practice, wherein only one doctor is running the practice; in a partnership, wherein two or more physicians share the responsibilities of the practice; or in a group practice, wherein several doctors are affiliated across an array of different medical specialties. As compared with at an academic setting within a large hospital, a personal relationship with the physician is more likely to develop in a private-practice setting. (Although this is not always the case). If the physician is not a solo practitioner, the patient should inquire whether he will be seen by the same physician on each visit. Similarly, all patients in the process of choosing a physician should inquire whether they will be seen by an actual doctor, as opposed to a nurse or physician’s assistant (P.A.) on each visit.

Private practitioners typically have much longer and more flexible office hours than physicians who are hospital staff members. Thus, early morning, as well as evening, and weekend hours are often available. Of course, the actual hours of availability vary considerably among private practitioners. Also, as compared with hospital-based physicians, private practitioners are less likely to be away from their offices for extended periods of time. Thus, it is possible to obtain an appointment with a highly qualified hepatologist in private practice much more quickly (usually within a few weeks) than with an academic hepatologist of similar stature.

A person doesn’t necessarily have to be treated at an academic institution in order to enroll in a clinical trial of an experimental drug. Some private practitioners conduct clinical studies as part of their practice, in the same manner as would an academic physician. However, this is not especially common and generally applies only to the most knowledgeable privately practicing hepatologists. This is an important area to inquire about prior to making an appointment with the doctor. Typically, studies run in a private practitioner’s office are less rigid in terms of criteria for including or excluding subjects and are less likely to involve the use of a placebo as compared with those conducted at an academic institution. It is important to thoroughly research the credentials of the physician conducting the study, whether the study is conducted in a private practice setting or at an academic institution. This will be discussed in further detail in Chapter 11.

Finally, many people with liver disease incorrectly assume that, if they are treated by an academic physician who is affiliated with a transplant center, this will automatically increase their chances of obtaining a new liver, should one be required. This is a total misconception, as all people are subject to identical rules, regulations, and criteria for liver transplantation—regardless of whether the patient is being treated within an academic or private practice setting. (See chapter xx for more about liver transplantation).

WHAT TO LOOK FOR IN A SPECIALIST

Now that you are familiar with the different kinds of doctors, the next step is to find out about the specialist you have chosen and how he runs his office.

So, what questions should be asked to determine the doctors experience treating people with liver disease?

Determining The Doctor’s Experience With Liver Disease

It is essential to find a doctor who has a significant amount of experience in taking care of people who have liver disease. Information about hepatitis and liver disease rapidly changes. Thus, unless the doctor deals with these diseases multiple times a day it is unlikely that he will be up-to date with information. Even most textbooks are two to three years out-of-date by the time they are published. In this regard, the patient should pose some basic questions to the doctor. See the sample questions that follow. Also, there is no guarantee that the doctor will be totally forthcoming about his level of experience. It’s very important to remember that just because the doctor’s business card or door sign says liver disease, it shouldn’t be assumed that his practice focuses on liver disease. The printer and the sign maker do not verify the doctor’s qualifications and credentials.

- Did your specialty training include a liver fellowship?

As discussed above, a doctor may have trained in the general specialty of gastroenterology, which includes some training in liver disease, or the doctor may have additional training specifically in liver disease. Doctors typically, but not always, hang their diplomas that they are awarded at the completion of their training on the wall. Therefore, simply looking at the doctor’s wall to see if there are two separate diplomas – one for liver disease and the other for gastroenterology will answer this question in many instances.

• ‑Approximately what percentage of your practice is devoted to liver disease, and about how many liver disease patients are you presently treating?

Some doctors have a very large practice but treat very few individuals with liver disease. Other doctors have a relatively small practice, but it may be one that is devoted primarily to taking care of people with liver disease. And some doctors—despite being well known in the field of hepatology—have not actually treated many people with liver disease. These doctors, who often work at large, well-respected hospitals, have devoted their careers to liver disease research rather than patient care.

• Are you involved in liver disease research?

It is advisable to ask the doctor whether he has participated in or is currently conducting research devoted to liver disease. For example, a doctor may be involved in experimental trials to evaluate a promising new form of diet or drug therapy for liver disease or may be involved in evaluating a new method of diagnosing liver disease. A doctor involved in such investigations will afford the patient the opportunity not only to learn firsthand about the most up-to-date therapies, but also may enable the patient to begin using a promising form of therapy before it becomes readily available to the public.

• Have you written any articles on liver disease? Have you written or contributed to any books on liver disease?

A patient should feel free to inquire about the doctor’s medical research experience and also about whether the doctor has authored any publications on liver disease. Many of the most knowledgeable hepatologists have published articles in any well-respected peer-review medical publications, such as Hepatology, Gastro-enterology, or Seminars in Liver Disease. This can be independently checked by accessing medline on the Internet (see Appendix for website address) or by asking for a copy of the article. Doctors are usually more than happy to comply with such a request. Remember, however, that articles appearing in medical publications are written for other physicians and other members of the medical community. These articles will, therefore, contain technical medical terminology. Some doctors have written articles on liver disease for the general public. These may appear in local newspapers, general circulation magazines, specialty publications -such as “Hepatitis” magazine, or publications such as the American Liver Foundation newsletters and pamphlets.

Some of the doctors who are the most dedicated to liver disease have demonstrated their dedication by writing book chapters, book forwards, or entire books on the subject of liver disease – either for the medical or lay community. The patient should feel free to inquire about any of these publications.

• What is your knowledgeability regarding alternatives to conventional medical therapies?

While a liver specialist is primarily involved in prescribing mainstream medical treatments, he should also be knowledgeable about the available alternatives to conventional medical therapy. Extensive evaluation of any alternative treatment is essential before its effectiveness can be assessed. How familiar is the doctor with the alternative therapy in question? How is the doctor basing his recommendations as to the alternative in question? How many of the doctor’s patients tried this alternative treatment, and what were the results?

If a doctor is going to treat your liver disease, it is important that he be knowledgeable as to the most popular alternative treatments for liver disease. While the doctor may not necessarily recommend their usage, it is important that he be conversant with their pros and cons.

- How many people with liver disease have you treated?

It is important to know how experienced the doctor is in treating patients with liver disease. However, while you may be tempted to ask the doctor his age or how long he has been in practice, these questions are of questionable usefulness. Though most people would prefer not to be treated by a doctor who has just completed specialty training, the actual amount of years in practice may not be a reliable indicator of the doctor’s experience with liver disease. For example, a doctor who has been in practice for thirty years may treat only ten individuals with liver disease each week. While another doctor, who may have been in practice for ten years, treats thirty people with liver disease each week. Who is more qualified? The answer is they both may be sufficiently qualified. The bottom line is that the age of the physician and the actual number of years he has been in practice are not reliable criteria by which to judge a doctor’s level of experience.

THE DOCTOR’S OFFICE AND STAFF

In addition to the qualifications of the doctor, there are several important factors which a prospective patient should consider when choosing a liver specialist. It is important to search for a practice in which the doctor has made many amends to make the practice convenient, available and private. This section discusses some additional issues to consider when finding a doctor to treat your liver disease.

Office Staff

Often, the patient can get a baseline impression of the doctor by observing how the office is run. Take note of whether the office staff seems to be knowledgeable about liver disease. A person telephoning the office may not always be able to contact the doctor immediately. Does the doctor have a nurse, medical assistant, or office manager who can promptly and accurately answer questions in the doctor’s absence?

Office Availability

What is the availability of the doctor and the doctor’s staff? How many days a week is the office open? Are the doctor’s hours flexible? Are evening and weekend appointments available? How long must the patient wait to get an appointment? A doctor may not have an appointment available the same day a patient calls, but no matter how busy the doctor’s practice is (even in the busiest of practices), a patient should be able to schedule an appointment within 3 or 4 weeks—at most.

How long does the patient have to wait once in the doctor’s office? If on every visit, the patient is left waiting for more than two hours in the waiting room, then there is something wrong with the doctor’s method of scheduling. But a long wait on occasion should not be cause for concern. Emergencies sometimes arise and can result in delays.

Office Privacy

It is important to be treated by a medical practice that respects your privacy. In fact, it’s the law. Is the nurse’s and office reception area enclosed with a window or door, or is it open thereby allowing patients’ names and personal information to be overheard? Do the doctor or his staff discuss other patients’ information (i.e. on the phone) while in your presence? Can you rely on the doctor and his staff to take the necessary steps to protect your medical information? Is the doctor’s practice in compliance with the Health Insurance Portability and Accountability Act of 1996 (HIPAA)?

What is HIPAA?

HIPAA was developed by the Department of Health and Human Services (HHS). This law applies uniformly to all areas of the United States effective as of April 15, 2003. These laws are a national standard. No doctor’s office or hospital in any area of the country is exempt from this law. The HIPAA law is designed to protect the security and confidentiality of patients’ protected health information (PHI) whether it is on paper, in computers or communicated orally. PHI is any information that the doctor’s office possesses about the patient that identifies the patient and relates to their past, current and future physical and/or mental health condition and the health care products and services that have been provided. Under this law your medical records and conversations with the doctor and doctor’s staff are not readily available to anyone without your written authorization.

All doctors’ offices must provide written notice to their patients describing their rights under this law. Patients typically will be asked to sign, initial or otherwise acknowledge that they received this notice. Furthermore, a notice must also be posted in the doctors’ office describing the basic features of this law. An office which does not display a HIPAA notice is in violation of their patients’ privacy rights and is subject to both civil and criminal penalties. The same applies to an office that does not provide you with a written notice describing your rights under HIPAA.

Office Services

People with liver disease generally need frequent assessment of their blood work. Therefore, it is important to find out whether blood will be drawn at the doctor’s office or whether the patient will be sent to a laboratory to have blood drawn. Obviously, it is a great convenience to have blood drawn in the doctor’s office at the time of the visit.

Often the patient with liver disease will need evaluation of his digestive system for a variety of reasons. The evaluation will typically include an upper endoscopy and a colonoscopy. An upper endoscopy is a flexible tube with a light at the end and is performed to evaluate the esophagus for possible esophageal varices, and the stomach for possible ulcers or infection. A colonoscopy is a flexible tube with a light at the end of it performed to evaluate the lower intestines (colon), for polyps or rectal bleeding, for example. Some doctors perform these tests in the comfort, privacy, and convenience of their office. Other doctors perform these tests at the local hospital, which is invariably more time consuming for the patient, as well as less convenient.

Who Will The Patient Actually Be Seeing?

It is crucial for the patient to find out whether he will be seeing the doctor on the initial, as well as subsequent visits, or a nurse, physician’s assistant (P.A.), or medical assistant (M.A.). You want to know who is actually going to be treating you. For many doctors, their standard procedure is to only conduct the initial evaluation of the patient. All subsequent visits, phone calls or other contacts with the patient are handled by a doctor’s representative – i.e. nurse, medical assistant, or physician assistant. These doctors’ helpers are commonly referred to as “physician extenders”. In such practices, the doctor is directly involved with the patient’s care only in the event of a serious complication. Baring a serious complication, the management of the patient is mostly left in the hands of the physician extender. However, in many practices, every patient is managed personally by the doctor. In such practices, the doctor himself will perform all examinations of the patient, (both initial and subsequent), will personally evaluate the patient’s response to therapy, and will personally make all treatment decisions - both major and minor. In this type of practice, the physician that you have chosen - after researching his level of expertise and experience in liver disease, will be the individual who is treating you.

Finally, find out how many doctors there are in the practice and whether you will be seeing the same doctor at each visit. It is in the best interest of the patient to establish a relationship with one doctor. This way, the doctor’s familiarity with the patient’s medical history and special needs will be maximized. This is likely to lead to the highest rate of success in treatment of the patient’s liver disease.

THE WAYS DOCTORS HELP PATIENTS OUTSIDE THEIR PRACTICES

Treating each person individually is the standard way a doctor helps patients get better. But there are additional ways that a doctor can help people—ways in which he can reach out to large groups of people with liver disease and to their loved ones all at once.

If a doctor spends his spare time involved in activities relating to liver disease, such as writing articles, lecturing, making radio or television appearances, creating instructional videos, or running a website devoted to liver disease, it’s pretty obvious that this doctor is dedicating his career, as well as his free time and spare energy, to helping people with liver disease. Patients should not hesitate to ask their ­doctors if they are involved in any of these worthy activities.

Publications

A doctor who writes articles on liver disease can reach a large number of people. The article can be contributed to a local newspaper, a health-related magazine, or the newsletter or brochure of a support group or a nonprofit organization devoted to liver disease, such as the American Liver Foundation (ALF) or Hepatitis Foundation International (HFI). Similarly, many pharmaceutical companies involved in the treatment of liver disease have literature concerning the disease and its treatment. The patient should find out if the doctor has contributed to any of these publications. Doctors who have had articles published will often have copies available at their offices that the patient can take home to read.

Lecturing

Does the doctor give lectures on liver disease, either within the local community or nationally? Lectures are regularly sponsored by nonprofit organizations such as ALF or HFI. The general public is normally invited to attend these lectures, either free of charge or for a very minimal fee. A knowledgeable doctor should be able to inform the patient of the date and location of scheduled lectures in the community or nearby areas. The patient should find out if the doctor is invited to speak at these lectures. A doctor who is involved in lecturing to the public will gladly tell the patient when the next lecture is scheduled, so that the patient may attend if he wishes. Or the doctor will describe to the patient the most recent lecture that he has given.

Media Appearances

The media is a means by which the doctor can reach out to many people with liver disease and their loved ones all at the same time. By communicating to the public through the media, the doctor is able to spread information about liver disease to thousands, if not millions, of people. Health topics are frequently discussed on news programs and talk shows. Often, local or cable television stations devote entire programs to liver disease, and radio programs often have short segments related to health topics. The patient should find out if the doctor has appeared on television or radio shows concerning liver disease, or if the doctor has participated in the production of any videotapes devoted to liver disease. A doctor who has appeared on television, radio, or videotape will probably be able to provide the patient with a taped copy of the show, or at the very least, provide information about how to obtain a copy.

Internet Websites

There are numerous liver-related websites on the Internet. The patient should find out if the doctor is involved in running one of these websites. The doctor should be able to direct the patient to some informative, accurate Internet websites related to liver disease. This topic will be discussed in more detail later in this chapter on page xx.

Associations and Foundations

Methods for the diagnosis and treatment of liver disease change rapidly on an ongoing basis. It is important to be treated by a doctor who is familiar with the most up-to-date developments. There are many professional organizations that keep doctors abreast of the most recent information on liver disease. The most prominent of these organizations in the field of liver disease is the American Association for the Study of Liver Disease (AASLD). A doctor who has been elected to membership in the AASLD is most likely to be actively involved in liver disease. The AASLD is an association of physicians and scientists who are dedicated to the advancement and application of knowledge of liver disease.

There are also numerous lay (non-professional) organizations that are dedicated to increasing the awareness of liver disease. Perhaps the best-known of these is the American Liver Foundation (ALF) is a voluntary nonprofit organization whose membership consists of doctors, patients, and any other individuals interested in liver disease. ALF’s major goals include educating the public about liver disease and fostering the prevention and treatment of liver disease. A doctor may be involved with ALF to varying degrees, ranging from being a member to running a support group to lecturing to the public on a topic pertaining to liver disease. Doctors who have demonstrated exceptional dedication to the cause of helping individuals with liver disease are often invited to serve as a board member of ALF, either at the national or local level. A patient can contact ALF to inquire about a doctor’s level of activity in this organization.

INSURANCE AND HMO PLANS

A full discussion of insurance plans, including HMOs, POSs and PPOs, is beyond the scope of this book. However, the patient should be aware of one very important point concerning insurance plans, which is described in the following scenario: After Tom’s exhausting search, he finally found a specialist that he wanted to consult with. However, when he checked in his insurance book, to his great disappointment, the specialist’s name was nowhere to be found! Now what?

All patients should be aware that most insurance plans will pay for a visit to a doctor who is not included in their plan, if—and this is an important if—the doctor offers special or unique services that no other doctor in the plan offers. For example, some liver specialists offer a wealth of experience treating people with liver disease, which greatly exceeds that of any other doctors who are currently listed on the plan, or they are offering treatment options that are not available through any of the other doctors on the plan. In these circumstances, an appeal letter or even a phone call to the appropriate insurance company representative explaining the dilemma often results in the patient being granted coverage for a consultation with the desired specialist. Also, the patient may want to ask the doctor personally if he would consider joining his health plan.

LIVER DISEASE SPECIALISTS AND THE INTERNET

The Internet may be considered a double-edged sword when it comes to liver disease. It is an ocean of both information and misinformation. Surf with caution. The number of Internet websites continues to grow at an explosive rate. Despite the relative newness of the Internet, there are already over one hundred Internet websites devoted to liver disease and hepatitis. It can be difficult for the layperson to determine which information is correct and which information is not. It is most important for the patient using the Internet to determine who is sponsoring the website.

Is a pharmaceutical company maintaining the website? For example, Schering-Plough, Roche, and Intermune, three major drug companies that manufacture and distribute pharmaceuticals used in the prevention or treatment of liver disease all maintain Internet websites. Each of these websites contains useful information, but, keep in mind that these companies also are promoting their product. Is it a well-respected hepatologist who maintains the website? For example, I maintain a regularly updated Internet website, and there are a number of other excellent hepatologists who also maintain websites devoted to liver disease. Or, is it a health-care professional who is not a hepatologist? Does a well-established not-for-profit organization maintain the website? For example, ALF and HFI, in addition to many other groups maintain helpful websites. Is it a knowledgeable patient eager to help others who maintains the site? Or is it a not-so-knowledgeable patient who is giving false and possibly dangerous information? Be careful. (See Appendix for some helpful website addresses.)

Some websites provide referrals to doctors who purportedly specialize in liver disease. Unfortunately, it is often impossible to ascertain what criteria were used in selecting the referred doctors. Some sites merely require a doctor to pay a fee in order to be listed. While it may be difficult to obtain accurate information from searching the Internet, one generality may be relied on: If the doctor has a website devoted to liver disease, it is likely his practice is focused on taking care of people with liver disease.

CONSULTING WITH THE SPECIALIST

Now that the patient has located a specialist, there are a few tips to follow, which will help make the appointment as smooth and efficient as possible for both the patient and the doctor. It is normal to be nervous about seeing a specialist. So much new and crucial information will be provided to the patient during this visit. It is to be expected that after the initial consultation is over, the patient will not recall a significant amount of what the doctor has said. For this reason, the patient should try to have a relative or close friend along for the consultation. Prior to the visit, the patient should make a list of all of the questions that he wants answered during this visit. The patient should bring this list to the consultation and should not leave the doctor’s office until every question has been satisfactorily answered. It’s perfectly okay to take short notes while the doctor is talking and to check off each question after the doctor has answered it. If necessary, the patient should request that the doctor write down unfamiliar technical medical terms used during the conversation.

The patient can make the initial consultation more productive for the specialist by bringing all prior records from other doctors to the visit. This will better enable the doctor to promptly and accurately assess the patient’s condition on the initial visit. It is especially important to bring the doctor copies of all previously performed blood work, imaging studies, and liver biopsy reports or slides. Doing so will not only assist the doctor, but it can sometimes eliminate the necessity of repeating the tests and/or biopsy.

Remember, all prior records, reports, and slides legally belong to the patient. These records should never be difficult for the patient to obtain. However, most doctors’ offices, hospitals, and medical facilities require a written request authorizing the release of the records to another doctor or hospital. Often there is a fee. Be aware that the maximum fee that by law can be charged for medical records is seventy-five cents per page.

Finally, the patient should always bring the doctor a list of all medications, including over-the-counter medications, vitamins, dietary supplements, and/or herbal remedies, that he is taking. The more comprehensive the information the patient provides, the more accurate the specialist’s advice will be.

FINDING SECOND OPINIONS

If a patient is not comfortable with the advice he receives from a specialist, it is advisable to seek another opinion. Always make sure that a second opinion is provided by a doctor whose knowledge of liver disease is superior to, or at least equal to, that of the first specialist. However, patients should keep multiple opinions in perspective. Under no circumstances should patients ever make it their objective to shop around for opinions until they hear the diagnosis or prognosis that they are looking for. A game plan of this nature could only cause a serious illness to be left neglected, untreated, or treated inappropriately. It is natural for anyone to hope to hear that there is nothing wrong and that a liver biopsy and treatment aren’t necessary. In some cases, these statements may in fact be accurate; however, if the patient has seen two or three well-respected liver specialists, all of whom concur that something is wrong, the patient must accept that he has a chronic illness that may require treatment.

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October 2, 2010

Understanding the functions of your liver

THE liver is the largest internal organ of the body. this vital organ is crucial to the smooth functioning of the human body.

It metabolises most of the nutrients that are absorbed by the intestine and detoxifies the blood by removing medications, alcohol and potentially harmful chemicals from the bloodstream – processing them chemically so that they can be expelled from the body by the digestive or urinary systems.

The liver also produces clotting factors and other proteins, stores certain vitamins, minerals (including iron) and sugars, regulates fat stores, and controls the production and excretion of cholesterol.

It is an amazing organ that can regenerate its cells within a few weeks. in fact, the liver can tolerate a fair amount of “abuse” and will only show signs of injury when the hurt is very advanced.

Liver disorders include hepatitis and cirrhosis. Hepatitis is inflammation of the liver and cirrhosis is scarring of the liver. these two conditions may progress to liver cancer if they are not monitored or treated properly.

Cirrhosis of the liver happens when your liver has a complication of many diseases. Anatomically, your liver will have a lot of scar tissue manifested in nodules and fibrous tissue that is hard.

When this happens, it could be due to the following factors:

1. That your liver is damaged by chronic liver disease.

2. That there is a lot of damaged liver tissue, leading to inflammation and subsequent repair and replacement by fibrous or scar tissue.

3. That there is regeneration of liver tissue from the cells that are still remaining, but it doesn’t go quite normally, leading to regenerative nodules.

If it were only the structure of the liver that is affected, cirrhosis would just be an ugly feature on an ultrasound. unfortunately, this is not a common occurance. usually, your liver functions are also affected and that’s when the problem starts.

As the largest internal organ of the body, the liver performs the following essential functions:

1. it controls the levels of fats, amino acids and glucose in your blood. Stores glycogen (glucose in another form), iron, vitamins and other essential nutrients.

2. it manufactures bile and aids in your digestive process, especially in the breakdown of fats.

3. it detoxifies your blood by clearing it of toxic wastes, breaking them down and getting rid of them either through your faeces or releasing them into your blood in smaller particles to be further cleared by your kidneys.

4. Manufactures and regulates various hormones, enzymes and clotting factors.

5. Fights infections, especially through macrophages.

Cirrhosis of the liver occurs because the liver anatomy is so scarred that it interferes with the liver cells’ functions, and thus renders the liver to be unable to perform many of its functions well.

The trouble with cirrhosis is that it has no clear symptoms or very few which are nondescript, like tiredness or fatigue. So you will not know that you have it till liver failure creeps up on you by which time may be a small too late.

Some symptoms associated with cirrhosis are fatigue, weakness, loss of appetite, itching, and sometimes jaundice if there is accumulation of bilirubin in your blood. Your clotting factors may also be affected and you can have simple bruising of your skin.

Often when cirrhosis becomes severe, you will develop complications. these complications can be a lot more clear in their symptoms and usually are the first physical sign that something is wrong.

1) You begin to retain water, leading to a condition called ascites, where there is excessive water in your peritoneal cavity (cavity within your abdomen). there is also a lot of water accumulated in your ankles and feet, manifested by swelling. the ascites is a magnet for bacteria to grow, and you may have an infection.

2) You can also have bleeding from oesophageal veins. in cirrhosis, the scar tissue blocks the flow of blood from the intestines to the heart, resulting in the distension of the portal vein. (This is the vein that is very important in the digestive process.) the back pressure leads to distension of your veins in the lower part of your oesophagus. these veins can bleed, leading to you vomiting blood (haematemesis). this can be life-threatening.

3) this pressure can also cause your spleen to distend and become so swollen that it sometimes becomes a hard mass in your abdomen. this gigantic spleen traps your blood cells and causes you to have anaemia and prolonged bleeding.

4) Because your liver cannot detoxify your body, this can lead to toxic substances in your blood. this goes to your brain and causes sleepiness during the day, irritability, confusion, loss of concentration, and finally coma and death.

5) Cirrhosis greatly increases the risk of you getting liver cancer

Causes of liver cirrhosis include excessive alcohol consumption that leads to hurt of your liver cells, resulting in a fatty liver (something which is heightened by obesity); chronic viral hepatitis (B,C); genetic liver disorders; and possibly anything that can hurt your liver can lead to cirrhosis.

Avoid excessive alcohol consumption, and make sure you have your hepatitis jabs, especially if you intend to travel to anyplace where hepatitis is viral . Lose any excess weight, and ensure you go for frequent check-ups

As the saying goes, prevention is better than cure and here are some measures you can take to preserve your liver health:

Poor nutrition rarely causes liver disease but excellent nutrition in the form of a balanced diet will enable the liver to perform its many various functions efficiently, resulting in better overall health. it can also help liver cells damaged by hepatitis viruses to regenerate, forming new liver cells.

But, whilst it is important to take vitamins and minerals, please note that an excess of Vitamin A is toxic to the liver and should be taken in moderation.

2. Limit intake of calories.

Excess calories in the form of carbohydrates can add to liver dysfunction and can cause fat deposits in the liver, contributing to fatty liver.

No more than 30% of a person’s total calories should come from fat because of the danger to the cardiovascular system. in order to estimate your daily calorie needs, you will need a minimum of 15 calories a day for each pound you weigh

3. Hold the alcohol

Liquor, beer and wine are hard for the liver to metabolise. the daily recommended alcohol intake is three units/drinks for men and two units/drinks for women.

As a general guide, one unit of alcohol translates to half a pint of ordinary strength beer, a small measure (25ml) of spirits or a standard measure (50ml) of fortified wine such as sherry or port.

Having three drinks or more per day should be avoided, as it may lead to alcoholic hepatitis and cirrhosis. People with liver disease should never drink alcohol at all. the same goes for individuals who are taking medication ? mixing alcohol with painkillers or other types of medications can be perilous to your liver.

In particular, the mixture of alcohol and acetaminophen (an ingredient in pain killers and cough medication) can cause sudden, severe hepatitis and even fatal liver failure. If you are not sure which medications to take in combination, please consult your doctor.

4. Beware “nutritional therapies”

Herbal treatments and alternative liver medicines should undergo rigorous scientific study before they can be recommended.

“Natural” or diet treatments and herbal remedies can be quite perilous. Plants of the Crotalaria, Senecio and Heliotopium families, as well as chaparral, mistletoe, skullcap, germander, comfrey, margosa oil, mate tea, Gordolobo yerba tea, pennyroyal, and Jin Blu Huan are all toxic to the liver.

Several scientific studies suggest that substances in milk thistle may protect the liver from harmful substances such as acetaminophen, which can cause liver hurt. it is also believed that milk thistle has antioxidant and anti-inflammatory properties, and it may help the liver repair itself by growing new cells.

5. stop smoking and stay away from toxic fumes and liquids.

Fumes from paint thinners, bug sprays, and other aerosol sprays are picked up by the tiny blood vessels in your lungs and carried to your liver where they are detoxified and discharged in your bile.

The amount and concentration of those chemicals should be controlled to prevent liver hurt. make certain you have excellent ventilation, use a mask, cover your skin, and wash off any chemicals you get on your skin with soap and water as soon as possible.

Hands should be washed with soap and water following bowel movements and before food preparation and consumption. this will help prevent the spread of hepatitis A.

Avoid sex with multiple partners or wear protection where unavoidable. Hepatitis B and C are transmitted through blood and body fluids. So use condoms and avoid sharing your personal items such as toothbrush, razor or manicure sets, especially if your partner may be suffering from a liver disease.

Vaccination for hepatitis A and B is available. an immunisation programme for hepatitis B has been in place for all children and adults since 1989 to prevent hepatitis B infection. it is essential to vaccinate newborns for hepatitis B as infections in this group will result in 90% chronic infection. there is no vaccination available for hepatitis C.

Chronic liver infection can lead to cirrhosis, where there are areas of scarring and liver cell regeneration within the liver.

Cirrhosis can lead to liver cancer, which is often diagnosed too late as few symptoms appear until it has reached an advanced stage. Signs and symptoms of liver cancer include right upper abdominal pain, jaundice (yellowing of the skin), abdominal swelling, weight loss, fatigue, simple bruising or bleeding.

Apart from surgery, for which most liver cancer patients are ineligible due to the advanced stages of the disease at time of diagnosis, there is currently an oral treatment that has been found to be effective in targeting the liver cancer cells specifically and can be used in patients who are unsuitable for surgery.

Sorafenib is an oral treatment available for the treatment of advanced liver cancer.

Keeping the liver healthy is essential to keeping your entire being healthy, so take excellent care of your liver, so that it can take care of you.

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