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Cirrhosis

What is cirrhosis of the liver?  

Important Information for Patients with Chronic Liver Disease and/or Cirrhosis

Complications of Cirrhosis: Clinical Perspectives and Implications 

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On to 2005 Research

2004-2001 Research Archives

 

 

The liver weighs about three pounds and is the largest organ in the body. It is located in the upper right side of the abdomen, below the ribs. When chronic diseases cause the liver to become permanently injured and scarred, the condition is called cirrhosis.

The scar tissue that forms in cirrhosis harms the structure of the liver, blocking the flow of blood through the organ. The loss of normal liver tissue slows the processing of nutrients, hormones, drugs, and toxins by the liver. Also slowed is production of proteins and other substances made by the liver.

What is the Impact of Cirrhosis?

Cirrhosis is the eleventh leading cause of death by disease in the United States. Almost one-half of these are alcohol related. About 25,000 people die from cirrhosis each year. There also is a great toll in terms of human suffering, hospital costs, and the loss of work by people with cirrhosis.

What are the Major Causes of Cirrhosis?cl1.jpg (22036 bytes)

Cirrhosis has many causes. It can result from direct injury to the liver cells (i.e., hepatitis) or from indirect injury via inflammation or obstruction to bile ducts which drain the liver cells of bile. Common causes of direct liver injury include chronic alcoholism (most common cause in the United States), chronic viral hepatitis (types B, C, and D) and auto immune hepatitis. Common causes of indirect injury by way of bile duct damage include primary biliary cirrhosis, primary sclerosing cholangitis and biliary atresia (common cause of cirrhosis in infants).

Less common causes of cirrhosis include direct liver injury from inherited disease such as cystic fibrosis, alpha-1-antitrypsin deficiency, hemochromatosis, Wilson’s disease, galactosemia, and glycogen storage disease.

Two inherited disorders result in the abnormal storage of metals in the liver leading to tissue damage and cirrhosis. People with Wilson’s disease store too much copper in their liver, brain, kidneys, and in the corneas of their eyes.

In another disorder, known as hemochromatosis, too much iron is absorbed, and the excess iron is deposited in the liver and in other organs, such as the pancreas, skin, intestinal lining, heart and endocrine glands.

If a person’s bile duct becomes blocked, this also may cause cirrhosis. The bile ducts carry bile formed in the liver to the intestines, where the bile helps in the digestion of fat.

In babies, the most common cause of cirrhosis due to blocked bile ducts is a disease called biliary atresia. In this case, the bile ducts are absent or injured, causing the bile to back up in the liver. These babies are jaundiced (their skin is yellowed) after their first month of life. Sometimes they can be helped by surgery in which a new duct is formed to allow bile to drain again from the liver.

In adults, the bile ducts may become inflamed, blocked, and scarred due to another liver disease, primary biliary cirrhosis. Another type of biliary cirrhosis also may occur after a patient has gallbladder surgery in which the bile ducts are injured or tied off.

Very rare causes of cirrhosis include: reactions to drugs (e.g., vitamin A, methotrexate, amiodarone) exposure to environmental toxins, and repeated bouts of heart failure with liver congestion.

f after full evaluation of a patient with cirrhosis, the etiology still is not clear, the disease is called "cystogenic cirrhosis." As much as 10 percent of cirrhosis falls into this category.

What are the Symptoms of Cirrhosis?cl2.jpg (24120 bytes)

People with cirrhosis often have few symptoms at first. The two major problems that eventually cause symptoms are loss of functioning liver cells and distortion of the liver caused by scarring. The person may experience fatigue, weakness, and exhaustion. Loss of appetite is usual, often with nausea and weight loss. Some patients present with menstrual abnormalities (amenorrhea), impotence, loss of sexual drive or painfully enlarged breasts (in men).

As liver function declines, less protein is made by the organ. For example, less of the protein albumin is made, which results in water accumulating in the legs (edema) or abdomen (ascites). A decrease in proteins needed for blood clotting makes it easy for the person to bruise or to bleed.

In the later stages of cirrhosis, jaundice (yellow skin) may occur, caused by the buildup of bile pigment that is normally passed by the liver into the intestines. Some people with cirrhosis experience intense itching due to bile products that are deposited in the skin. Gallstones often form in persons with cirrhosis because not enough bile reaches the gallbladder.

The liver of a person with cirrhosis also has trouble removing toxins, which may build up in the blood. These toxins can dull mental function and lead to personality changes and even coma (encephalopathy). Early signs of toxin accumulation in the brain may include neglect of personal appearance, unresponsiveness, forgetfulness, trouble concentrating, or changes in sleeping habits.

Drugs taken usually are filtered out by the liver, and this cleansing process is also slowed down by cirrhosis. The liver does not remove the drugs from the blood at the usual rate, so the drugs act longer than expected, building up in the body. People with cirrhosis are often very sensitive to medications and their side effects.

A serious problem for people with cirrhosis is pressure on blood vessels that flow through the liver. Normally, blood from the intestines and spleen is pumped to the liver through the portal vein. But in cirrhosis, this normal flow of blood is slowed, building pressure in the portal vein (portal hypertension). This blocks the normal flow of blood, causing the spleen to enlarge. So blood from the intestines tries to find a way around the liver through new vessels.

Some of these new blood vessels become quite large and are called "varices." These vessels may form in the stomach and esophagus (the tube that connects the mouth with the stomach). They have thin walls and carry high pressure. There is great danger that they may break, causing a serious bleeding problem in the upper stomach or esophagus. If this happens, the patientÕs life is in danger, and the doctor must act quickly to stop the bleeding.

How is Cirrhosis Diagnosed?

The doctor often can diagnose cirrhosis from the patient’s symptoms and from laboratory tests. During a physical exam, for instance, the doctor could notice a change in how your liver feels or how large it is. If the doctor suspects cirrhosis, you will be given blood tests. The purpose of these tests is to find out if liver disease is present. In some cases, other tests that take pictures of the liver are performed such as the computerized axial tomography (CAT) scan, ultrasound, and the radioisotope liver/spleen scan.

The doctor may decide to confirm the diagnosis by putting a needle through the skin (biopsy) to take a sample of tissue from the liver. In some cases, cirrhosis is diagnosed during surgery when the doctor is able to see the entire liver. The liver also can be inspected through a laparoscope, a viewing device that is inserted through a tiny incision in the abdomen.

What are the Treatments for Cirrhosis?

Treatment of cirrhosis is aimed to stop the development of scar tissue in the liver and prevent complications. When cirrhosis is due to an identifiable cause, treatment programs may be specific, such as for management of hepatitis B and C, or steroids and immunosuppressive agents for auto-immune chronic active hepatitis.

No matter what the cause of cirrhosis, every patient must avoid all substances, habits, and drugs that may further damage the liver, precipitate complications, or speed the progression to liver failure. Alcohol, in addition to causing cirrhosis, may accelerate the progression of liver scarring due to other causes, such as hepatitis C. All patients with liver disease should not drink alcoholic beverages. Even some non-prescription drugs and vitamins, acetaminophen, in relatively small doses (more than five doses a day) and Vitamin A (more than 25,000 IU/day) may precipitate liver failure. Non-steroidal anti-inflammatory drugs, such as ibuprofen, may precipitate severe bleeding and/or kidney failure.

The cirrhotic patient is at increased risk of contracting other infections that may be more severe than in healthy patients. Immunizations for hepatitis A, B, influenza, and pneumococcal pneumonia are available and should be administered. Raw seafood may contain bacteria that can cause life-threatening infections and therefore should be avoided.

How are the Complications of Cirrhosis Treated?

The abnormal accumulation of fluid may cause swelling of the ankles (edema) and abdomen (ascites). Therefore, patients should reduce the amount of fluid and salt in their diet or use drugs called "diuretics" that mobilize and excrete the excess fluid through the kidneys. Occasionally, the ascites may become infected, a condition known as Spontaneous Bacterial Peritonitis, and require treatment with antibiotics.

When the liver does not efficiently function to cleanse the body of toxins and drugs, the mental state of patients may change dramatically and lead to coma, called Hepatic Encephalopathy. Treatment is directed at reducing the protein in the diet, avoiding sedatives and pain medications, and using laxatives and/or antibiotics to decrease the absorption of toxins from the intestines.

Sometimes, bleeding from the esophagus or stomach caused by abnormal veins (varices) may occur and is a life-threatening emergency requiring hospitalization. Variceal bleeding can usually be controlled with the use of a flexible tube (endoscope) that is inserted through the mouth into the esophagus and stomach and used to inject clotting agents into the veins or to rubberband ligate the varices.

Liver failure refers to the end stage of liver disease and cirrhosis when the liver stops working and cannot support life. Liver failure is difficult to treat and survival is limited. Therefore, patients with any complication of cirrhosis are considered to be at risk of developing liver failure.

When complications develop, it may be possible to manage them. When it is likely that liver failure will develop, some patients with cirrhosis are able to undergo liver transplantation. The treating gastroenterologist may recommend liver transplantation when complications of cirrhosis develop in an attempt to avoid liver failure.

Additional Reading:

Biliary Atresia.. This fact sheet presents information on biliary atresia and cirrhosis, including discussions of diagnosis, treatment, and complications. Available from the American Liver Foundation. 1428 Pompton Avenue, Cedar Grove, NJ 07009. (201) 256-2550 or (800) 223-0179.

Cirrhosis: Many Causes.. This fact sheet presents general information on cirrhosis of the liver, research, and the work of the American Liver Foundation. Available from the foundation.

Clayman, CB, ed. The American Medical Association Encyclopedia of Medicine.. New York: Random House, 1989. Authoritative reference guide for patients, with sections on cirrhosis, hepatitis, and other disorders affecting the liver. Widely available in libraries and bookstores.

Primary Biliary Cirrhosis. . This fact sheet presents information on PBC and cirrhosis, including discussions of diagnosis, treatment, and liver transplantation.

Available from the American Liver Foundation.

Rosenfeld, I. Second Opinion: Your Comprehensive Guide to Treatment. New York: Bantam Books, 1988. General medical guide with sections on cirrhosis and other disorders affecting the liver. Widely available in libraries and bookstores.

Resources

United Network for Organ Sharing, 1100 Boulders Parkway, Suite 500, P.O. Box 13770, Richmond, VA 23225-8770. (804) 330-8500

http://www.gastro.org/public/brochures/cirrhosis.html           

                                

Important Information for Patients with Chronic Liver Disease and/or Cirrhosis

Introduction

Patients who suffer from chronic liver disease may develop cirrhosis after years of disease. Cirrhosis of the liver is a serious condition characterized by severe scarring. Not everyone with hepatitis or liver disease develops cirrhosis. If your doctor has told you that you have chronic liver disease and/or cirrhosis, there are important precautions that you should take to prevent further damage to your liver.

Can I drink alcohol?

No, you should not drink alcohol.

Alcohol damages liver cells. A healthy liver is able to replace most liver cells that are injured by alcohol. However, in individuals with cirrhosis, the liver is unable to replace the damaged liver cells. Drinking any alcohol, not just hard liquor, but also beer or wine will speed up the process of liver destruction and may counteract any treatments prescribed by your doctor.

Is it safe to take acetaminophen (Tylenol ®)?

It is generally safe to take acetaminophen in the amount specified in the labeling. Acetaminophen is the main ingredient in Tylenol ®, but it is also found in many non-prescription products for headaches, the flu, sinus problems, arthritis or general aches and pains. In 1993, an FDA Advisory Committee recommended that all over-the-counter pain relievers contain an alcohol warning. Tylenol and some other pain relievers have included such an alcohol warning on their labeling. But, to date, not all over-the-counter pain relief products have complied with the FDA recommendation. There have been some reports that chronic heavy alcohol users may be at increased risk of liver toxicity from excessive acetaminophen use. Individuals who have been diagnosed with liver conditions will want to consult with their physician for advice on when and how to take pain relievers and should not exceed recommended doses of acetaminophen or any other pain reliever, especially if they are consuming alcohol. Pay particular attention to products labeled "aspirin-free"; because some prescription medications also contain acetaminophen, so be sure to ask your doctor about use of pain relievers.

Some Acetaminophen Containing Medicines

 

Tylenol ® 325 mg/tablet
Tylenol Extra Strength ® 500 mg/tablet
Tylenol Adult Liquid ® 500 mg/tablespoon
Tylenol Extended Relief ® 650 mg/tablet
Aspirin Free Excedrin ® 500 mg/tablet
Excedrin Extra-Strength ® 250 mg/tablet
Excedrin P.M. ® 500 mg/tablet
Midrin ® 325 mg/capsule
Actifed Cold & Sinus ® 500 mg/tablet
Sinutab Sinus Allergy ® 500 mg/tablet
Sudafed Cold & Cough ® 500 mg/tablet

What other medications should I avoid?

You may need to avoid iron supplements. Too much iron can damage liver cells or aggravate liver damage caused by some viruses. Most adults do not need to take iron supplements unless there is a history of obvious blood loss or a known deficiency of iron. Unless your doctor prescribes iron supplements for you, do not take any iron supplements or even multivitamins that contain iron.

What foods should I avoid?

Sewage runoff can infect edible sea organisms (clams, oysters, crustaceans and fish) with both bacteria and viruses. Contamination of seafood may be undetectable by smell or taste. Clams and oysters are especially susceptible to sewage contamination and should never be eaten raw.

Vibrio vulnificus is a bacteria that is found in contaminated oysters and other seafood. In healthy people, it rarely causes serious infection, but in individuals with cirrhosis it can cause death in 48 to 72 hours.

Hepatitis A is a virus that can be found in clams and oysters. Infection with hepatitis A can cause even healthy persons to become very sick. Individuals with cirrhosis are especially vulnerable to a life-threatening infection caused by this virus.

If you have open sores on your skin, you should avoid exposure to sea water during the warm summer months. Harmful organisms can enter the blood stream through these sores and cause serious infection.

Are vaccines important?

Yes. Ask your doctor if you would benefit from one or more of the following vaccines:

Hepatitis A Vaccine:
Used to prevent hepatitis A, which can be severe in individuals with cirrhosis. It consists of a series of two injections given six months apart.
Hepatitis B Vaccine:
Used to prevent hepatitis B, another type of viral hepatitis. It consists of a series of three injections. The second and third injections are given one and six months after the initial injection.
Pneumococcal vaccine:
Used to prevent a kind of pneumonia caused by a bacteria called Streptococcus pneumoniae. It consists of only one injection, and should be repeated in five years.
Flu Shot:
Used to prevent influenza, a cause of severe upper respiratory infection and pneumonia. It is a single injection given yearly, usually in the Fall, just prior to the flu season.

Are there any natural herbs that can heal my liver?

Many causes of cirrhosis do not have any treatment available. For this reason, many individuals resort to the use of "health foods" and "natural herbs or supplements" to improve the liver. There is no scientific proof that any of these products are of benefit to the liver. Most of them are safe, but liver damage caused by herbal products has been reported. There are several herbal remedies that are known to cause liver damage. Be sure to tell your doctor before you begin any herbal products so that he or she may better monitor your condition.

Remember, take care of yourself.

Although cirrhosis is a serious condition, you may live many years without problems. Try to eat a well-balanced diet and exercise regularly. The more active you become in taking care of yourself and obtaining regular follow-up with your doctor, the more likely you will be one of the many individuals that do well for many years.

http://www.acg.gi.org/patientinfo/cgp/cgpvol3.html#liver

 

 

Complications of Cirrhosis: Clinical Perspectives and Implications  CME

Disclosures

Helena Cortez-Pinto, MD, PhD   

 

Introduction

The final stage of liver disease is punctuated by several major complications: ascites, hepatorenal syndrome (HRS), spontaneous bacterial peritonitis (SBP; a potentially lethal infection of the ascitic fluid that occurs in the absence of a local source of infection), variceal hemorrhage, and hepatic encephalopathy. Although liver transplantation is indicated whenever these complications are present, there are still many patients who have to be managed through them, either while waiting for a liver or because they have contraindications to liver transplantation. The appropriate management of these patients is crucial, not only because these complications can be life-threatening, but also because it is now clear that influencing the pretransplant status of patients results in better transplant outcomes.

During this year's meeting of the European Association for the Study of the Liver (EASL), this broad topic was not primarily addressed in formal lectures, but rather most of the new data were presented in poster sessions. This clinical overview addresses some of the more important new data related to complications of cirrhosis -- ascites/ SBP, varices, and hepatic encephalopathy, as presented during these meeting proceedings.

Ascites/SBP/HRS

Background

Ascites is one of the more frequent complications of liver cirrhosis and will develop in approximately 50% of patients with compensated cirrhosis who are followed for 10 years. Development of this complication is an ominous sign in that approximately 50% of patients with ascites die within 2 years if not transplanted. It is usually associated with a marked deterioration in nutritional status and in quality of life.

The management of this clinical problem is challenging for the patient and physician alike because it requires very careful monitoring of the pharmacologic treatment, with special attention given to fluid and weight balance. Treatment of ascites has been based on a sodium-restriction diet and the progressive administration of diuretics, starting with spironolactone (100 mg/day) and furosemide (40 mg/day), and increasing progressively every 3-5 days, if weight loss is inadequate, until a maximum dosage of 400 mg/day of spironolactone and 160 mg/day of furosemide is reached. Fluid restriction is not necessary in treating most patients with cirrhosis and ascites. The chronic hyponatremia usually seen in patients with cirrhotic ascites is seldom morbid. In this setting, attempts to rapidly correct hyponatremia with hypertonic saline can lead to more complications than the hyponatremia itself.[1] Preliminary data suggest that aquaretic drugs may have some promise in correcting hyponatremia, and may also be useful in treating HRS. Therapeutic paracentesis may be used in patients with refractory ascites; its use in patients with diuretic-sensitive ascites is more controversial. Administration of albumin at a dose of 5-10 g/L of ascitic fluid removed has been strongly advised to prevent paracentesis-induced circulatory dysfunction in large-volume paracentesis (> 5 L).[1]

Treatment and Complications

Ascites. Alessandria and colleagues,[2] from San Giovanni Battista Hospital in Turin, Italy, compared low-dosage infusion of albumin (4g/L of ascitic fluid removed) with the standard dose of 8g/L of ascitic fluid removed in 25 patients undergoing large-volume paracentesis. In both groups, the amount of ascitic fluid removed was similar, as was plasma renin activity. The study authors found a similar incidence of paracentesis-induced circulatory dysfunction, suggesting that low doses of albumin are as effective as standard doses in the prevention of this complication -- a finding that may support a significant cost reduction in the management of patients with cirrhotic ascites.

Renal failure. Another significant complication of ascites in patients with cirrhosis is the development of renal failure. Ballesté and colleagues,[3] from Badalona and Barcelona, Spain, assessed the incidence and prognosis of different types of nonorganic renal failure (ie, functional, reversible renal failure) in 263 consecutive cirrhotic patients followed for 41 ± 3 months after their first ascites. They considered 3 types of such renal failure: prerenal failure when associated with a depletion of intravascular volume; renal failure associated with infection not leading to HRS; and HRS as defined by preestablished criteria. It is interesting to note that these investigators found that 49% of cirrhotic patients with ascites developed some type of nonorganic renal failure, prerenal failure being the most frequent (27.4% of all patients) during follow-up. This complication was associated with a significantly worse prognosis, suggesting that efforts to prevent prerenal failure should be implemented.

HRS, a common and serious problem in patients with advanced liver disease, is a functional form of renal failure that can occur in end-stage liver disease. Its pathogenesis involves vasodilation of the splanchnic vessels. The vasoconstrictor terlipressin* may be useful in patients with HRS. Gluud and colleagues[4] from the Cochrane Hepato-Biliary group in Copenhagen, Denmark, presented a systematic review of randomized controlled trials assessing the effect of terlipressin in the treatment of HRS. They found 3 published and 2 ongoing trials eligible for inclusion. All patients had cirrhosis and HRS type 1 or type 2. The most commonly evaluated dose of terlipressin was 1 mg given every 12 hours for 5-15 days. Survival rates were 62% for patients randomized to terlipressin and 20% for those in the control group, with terlipressin demonstrating a significant beneficial effect on creatinine clearance. The study authors concluded that terlipressin may be considered for patients with HRS in spite of its potential adverse effects, namely ischemia of myocardium, gut, or digits, although evidence is still needed for definitive treatment recommendations, especially regarding dose and duration of therapy.

SBP. Nousbaum and colleagues,[5] from France, presented data regarding the rapid diagnosis and prevalence of SBP in cirrhotic ascites. The diagnosis of SBP in patients with cirrhosis requires an ascitic fluid polymorphonuclear cell count > 250/mm3. Using leukocyte esterase reagent strips (the type used for urinalysis), these investigators collected data on a total of 2123 ascites samples in 1069 patients in this multicenter prospective study. The samples were tested with commercially available reagent strips, with each strip read twice by different members of the team to avoid investigator bias. One hundred and seventeen SBP episodes (5.5% prevalence) were identified among the samples. Among these, 56 were associated with a positive ascitic fluid culture. Using the threshold of 2+ for positivity of the reagent strip (ie, a positive reagent strip result of 2 or more), sensitivity was 43.6% and specificity was 99.2% for the diagnosis of SBP, with a positive predictive value of 76.1% and negative predictive value of 96.8%. With regard to the sensitivity of the test, these results are not as good as those previously reported by other groups -- although specificity was excellent. Thus, the study authors concluded that a negative result on reagent strip cannot exclude the diagnosis of SBP.

Varices

Background

The management of portal hypertension encompasses therapy to prevent hemorrhage in patients who have never bled (primary prophylaxis), treatment for those who are actively bleeding, and therapy for those who have previously bled (secondary prophylaxis). In primary prophylaxis, after a screening endoscopy, if medium- or large-sized varices are present, nonselective beta-blockers (ie, propranolol or nadolol) remain the treatment of choice. The drug dose is increased until heart rate decreases by 25%, with a frequency between 50 and 60 beats/minute. Specific hemostatic treatments for variceal bleeding include vasoactive drugs that decrease portal pressure, such as terlipressin* or somatostatin, endoscopic band ligation, and surgical portosystemic shunts or TIPS (transjugular intrahepatic portosystemic shunt). As secondary prophylaxis, both beta-blockade and endoscopic band ligation can be used. When possible, hepatic venous pressure gradient (HVPG) should be monitored, with the goal of reduction to < 12 mmHg; otherwise, the goal of reducing heart rate by 25% is acceptable. HVPG provides valuable prognostic information in the pharmacologic management of portal hypertension in helping to predict the risk of variceal hemorrhage.[6]

Primary Prophylaxis

With regard to prophylaxis of the first variceal bleed, Drastich and colleagues,[7] from the Czech Republic, conducted a prospective, multicenter, randomized trial to compare the efficacy and safety of propranolol therapy vs endoscopic variceal ligation in the prophylaxis of the first variceal bleed. Of 73 cirrhotic patients with high-risk varices (> 5 mm in diameter), 33 received propranolol (at a dose sufficient to decrease baseline heart rate by 25%) and 40 underwent endoscopic variceal ligation until eradication. They found no significant difference in the actuarial risk for first variceal bleed between the 2 groups (9% for endoscopic variceal ligation and 20% for the propranolol group). As to associated complications, there was 1 bleed related immediately to endoscopic variceal ligation and no complications in the propranolol group. The study authors concluded that both propranolol and endoscopic variceal ligation seem to be safe and effective in this setting. In fact, previous randomized controlled trials have shown that variceal banding is as effective as beta-blockers for preventing a first variceal bleed. However, it is still recommended to initiate management with beta-blockers if there are no contraindications because these agents are inexpensive, easy to use, and relatively safe, considering prophylactic band ligation of varices in those patients who cannot tolerate the appropriate doses of beta-blockers.[8]

Another interesting study concerning portal hypertension-related bleeding was presented by Beauchant and colleagues[9] from France. This study aimed to examine French management practices in this setting. This cross-sectional survey examined 127 bleeding events and involved 103 men and 23 women; mean age was 58.5 years. Cirrhosis was linked to alcohol in 85% of patients. The bleeding event was the first episode in 79 (62%) patients, 40 (51%) of whom had known cirrhosis and 25 had prior endoscopy (with stage II esophageal varices found in 18 of 25, and prophylaxis with beta-blockers given in 14 of 18 cases). The main causes of bleeding were esophageal varices in 73% of cases, other varices in 10% of cases, and portal hypertensive gastritis in 5%. Vasoactive treatment was given in 89% of cases, endoscopic ligature in 42%, sclerosis in 21%, and/or tamponade in 6% of cases. The study authors concluded that although management was usually in line with general consensus, one third of known cirrhotics did not have endoscopy or prophylaxis before the first bleeding event.

Secondary Prophylaxis

As mentioned previously, HVPG provides valuable prognostic information in the pharmacologic management of portal hypertension. After a variceal bleed, a spontaneous decrease in HVPG has been observed in some patients treated with endoscopic procedures, but the impact of a spontaneous hemodynamic response on clinical outcome in these patients has not been extensively investigated. In this setting, Aracil and colleagues[10] conducted a study to assess the influence of such a spontaneous response in the prevention of variceal rebleeding. This study included 99 patients treated with an endoscopic procedure (ligation or sclerotherapy) to prevent rebleeding after an acute bleeding episode. HVPG measurements were performed at baseline (once the acute bleeding was controlled) and again 1-3 months later (once varices had been eradicated). A spontaneous decrease in HVPG by > 10% was observed in 22% of patients (responders). Variceal eradication occurred more frequently in responders than in nonresponders (94% vs 58%; P < .001), and variceal rebleeding was less frequent in responders (20% vs 42% in nonresponders at 2 years; P = .04). On the basis of these findings, the study authors suggested that efficacy of endoscopic therapy may be related to spontaneous hemodynamic response.

TIPS have long been used to lower portal pressures in the setting of variceal hemorrhage and refractory ascites, their major associated complications being the development of hepatic encephalopathy and shunt stenosis, which is seen in up to 50% of patients within 6 months. The polytetrafluorothethylene (PTFE)-covered stents* appear to have the potential to improve TIPS patency. During this year's EASL meeting, Angeloni and colleagues[11] prospectively compared TIPS safety and 1-year patency in 56 patients using PTFE-covered stents vs in 87 patients treated with conventional stents. The 1-year probability of remaining free of shunt dysfunction was significantly higher in the covered stent group compared with the conventional stent group: 82% vs 57.5%; P = .003. The probability of rebleeding was significantly lower among those patients in the covered stent group. Although the number of hepatic encephalopathy episodes was similar between the 2 groups in the first 12 months after TIPS, 6 of the 56 patients treated with covered stents had intractable episodes of hepatic encephalopathy, and none of the patients in the conventional stent group suffered from recurrent intractable hepatic encephalopathy. The study authors concluded that although PTFE-covered stent-grafts have a higher patency and a lower rebleeding rate, a higher incidence of intractable hepatic encephalopathy may occur.

Kalambokis and colleagues,[12] from Greece, compared the hemodynamic effects of terlipressin, somatostatin, and terlipressin plus somatostatin in cirrhotic patients with portal hypertension; they also examined the effect of each treatment on sodium renal excretion. Terlipressin monotherapy significantly reduced portal vein velocity and portal flow volume, and increased mean arterial pressure (MAP) and systemic vascular resistance along with a decrease in cardiac output. In patients without ascites, it significantly increased fractional excretion of sodium, although it did not change in patients with ascites. Somatostatin monotherapy did not alter portal hemodynamics, whereas it significantly reduced MAP, heart rate, and -- in patients with ascites -- fractional excretion of sodium. The addition of terlipressin to the regimen induced similar changes in hemodynamic parameters and sodium excretion to those observed after receiving terlipressin alone, although the increase in MAP was significantly lower than in those patients receiving terlipressin alone. The study authors concluded that the use of terlipressin as monotherapy appears to be advantageous, whereas a combination of somatostatin and terlipressin does not seem to exert an additive portal hypotensive effect in cirrhotic patients.

Prevention of Infection

Another important issue concerning the management of cirrhotic patients with upper gastrointestinal bleeding is the risk of infection. During General Session 1: Clinical Hepatology, Fernandez and colleagues[13] from Barcelona, Spain, presented the results of a randomized, multicenter, controlled trial, comparing oral norfloxacin (400 mg twice daily for 7 days; n = 55) vs intravenous ceftriaxone (1 g/day for 7 days; n = 53) in the prevention of bacterial infections in 108 cirrhotics with severe liver failure and gastrointestinal bleeding within 10 days after inclusion. They found that the probability of developing bacterial infections during the study period was significantly lower in patients receiving ceftriaxone than in those treated with norfloxacin (11% vs 27%; P = .02), with all types of infections except pneumonia occurring less frequently in the ceftriaxone group (urinary tract infection, 5.7% vs 14.5%; spontaneous bacteremia, 0% vs 1.8%; pneumonia, 3.8% vs 1.8%). The study authors concluded that intravenous ceftriaxone was more effective than oral norfloxacin in the prevention of bacterial infections in cirrhotic patients with severe liver failure and upper gastrointestinal bleeding.

Hepatic Encephalopathy

Background

Hepatic encephalopathy is a complex neuropsychiatric syndrome due to hepatic failure. In most cases, the diagnosis is clinical, and relies on the exclusion of other causes of disordered mental status. In difficult cases, the use of brain imaging (computed tomography or magnetic resonance) may be useful. Unfortunately, there have been no major advances in this area during the last decade. Therapy is primarily based on supportive care and the treatment of common precipitating factors, such as gastrointestinal bleeding, infections, renal and electrolyte disturbances, psychoactive medications, volume depletion, constipation, excessive dietary protein intake, and the presence of shunts (surgical or TIPS). Oral lactulose is still the first-line pharmacologic treatment for hepatic encephalopathy, the recommended dose being 15-45 mL given orally every 6-8 hours, adjusted to achieve 3 bowel movements. Several oral antibiotics can be used in this setting, such as neomycin (dose = 3-6 g/day), metronidazole (dose = 250 mg/day), and rifamixin (dose = 1200 mg/day). More controversial therapies include L-ornithine L-aspartate, flumazenil,* and bromocriptine, whose efficacy have not been demonstrated.[6]

Risk Factors and Treatment

Sánchez-Muñoz and colleagues,[14] from Seville, Spain, presented the results of a study comparing the impact of hepatic encephalopathy on survival in 1037 patients with hepatitis C virus (HCV)-related cirrhosis and 180 patients with HCV-related cirrhosis who were coinfected with HIV. Hepatic encephalopathy was more often seen in coinfected patients (14% vs 7.3%; P < .001), and was also the cause of death in 46% of HCV/HIV-coinfected vs 22% of HCV-infected patients. The 1- and 3-year estimated survival rates after development of hepatic encephalopathy were 38% and 23% in coinfected patients, and 52% and 31% in those with HCV-related cirrhosis; P < .05. The study authors concluded that hepatic encephalopathy was more frequent and shows a more severe course in HCV/HIV-coinfected patients, which may in part be explained by the enhanced systemic inflammatory response seen in these coinfected patients.

Hyponatremia may occur in patients with cirrhosis and is associated with considerable changes in brain cells. Torre and colleagues,[15] from several centers in Spain, hypothesized that hyponatremia-induced changes in the brain may predispose to the development of hepatic encephalopathy. They analyzed the incidence and predictive factors of hepatic encephalopathy in 70 patients with cirrhosis and refractory ascites who had no hepatic encephalopathy at entry. During a median follow-up of 10 months, 71% of patients developed at least 1 episode of hepatic encephalopathy. In multivariate analysis of several variables, including demographic and clinical data as well as liver and renal function obtained at randomization and in the absence of treatment for 5 days, only age and severe hyponatremia (medium sodium < 125 mEq/L) were associated with an independent predictive value for development of hepatic encephalopathy. Severe hyponatremia increased the risk of hepatic encephalopathy 3.2 times. This finding is interesting in that it suggests new possibilities for investigating intracerebral factors leading to the development of hepatic encephalopathy in patients with cirrhosis and refractory ascites.

Abid and colleagues,[16] from Pakistan, conducted a randomized study to examine the efficacy of intravenous infusion of L-ornithine L-aspartate* in patients with hepatic encephalopathy due to liver cirrhosis. They randomized 120 patients to receive L-ornithine L-aspartate 20 g/day (n = 60) or placebo (n = 60) in 100 mL 5% dextrose infusion over 4 hours for 4 consecutive days. The 2 groups were comparable at baseline. Hepatic encephalopathy improved by at least 1 stage on day 4 in 53 patients given L-ornithine L-aspartate vs in 44 patients on placebo (P = .016). Duration of hospital stay was shorter in the L-ornithine L-aspartate group (3.9 vs 5.6 days; P = .04). Mortality was similar in the 2 groups and there were no side effects associated with L-ornithine L-aspartate. Thus, the study authors concluded that infusions of L-ornithine L-aspartate appear to be safe and effective in the treatment of hepatic encephalopathy, resulting in improvement in hepatic encephalopathy and reduction in hospital length of stay.

Concluding Remarks

On the basis of data reported during this year's EASL meeting, it seems that in cirrhotic patients with diuretic-resistant ascites, large-volume paracentesis can be safely performed using lower doses of albumin, thereby reducing the associated costs. In cirrhotic ascites, attention must be paid to the prevention of volume depletion because the associated deterioration in renal function can worsen the prognosis. Additionally, the use of reagent strips for a rapid diagnosis of SBP was not confirmed to be reliable, as reported in previous studies. Additionally, as addressed in this overview, the utility of terlipressin is increasingly being recognized in the management of HRS as well as in the management of variceal bleeding, showing more favorable hemodynamic effects than somatostatin. As addressed further during these meeting proceedings, the prevention of infection during esophageal bleeding with intravenous ceftriaxone was shown to be more effective than oral norfloxacin. Also, although TIPS using PTFE-covered stent-grafts show a higher patency and lower rebleeding rate, the fact that this approach is associated with a higher incidence of intractable hepatic encephalopathy warrants consideration. As a final point of commentary, the primary prophylaxis of variceal bleeding is mandatory, and beta-blockers remain the first option in management. It is evident that the management of cirrhosis and its related complications conitnue to pose a significant challenge to the practicing gastroenterologist-hepatologist, and will remain a major focus of many research efforts in the field.

Supported by an independent educational grant from Gilead.

*The US Food and Drug Administration has not approved this medication for this use.

References

  1. Runyon BA. Management of adult patients with ascites due to cirrhosis. Hepatology. 2004;39:841-856.

  2. Alessandria C, Marzano A, Todros L,et al. Low vs standard albumin dosages in the prevention of paracentesis induced circulatory dysfunction: a randomized pilot study. J Hepatol. 2005;42(suppl 2):75. [Poster #190]

  3. Ballesté B, Montoliu S, Alvarez MA, et al. Incidence and prognosis of the different types of non-organic renal failure in 263 cirrhotic patients with ascites. J Hepatol. 2005;42(suppl 2):76. [Poster #193]

  4. Gluud LL, Kjaer MS, Taastroem A, Christensen E. Terlipressin for hepatorenal syndrome: a Cochrane systematic review. J Hepatol. 2005;42(suppl 2):81. [Poster #206]

  5. Nousbaum JB, Cadranel JF, Nahon P, et al. Prospective multicenter study of the prevalence of spontaneous bacterial peritonitis in cirrhotic patients. Diagnostic accuracy of urine screening test Multistix 8SG®. J Hepatol. 2005;42(suppl 2):84. [Poster #216]

  6. Cardenas A, Ginès P. Management of complications in cirrhosis in patients awaiting liver transplantation. J Hepatol. 2005;42:S124-S133.

  7. Drastich P, Lata J, Petrtyl J, et al. Endocopic variceal band ligation in comparison with propanolol in prophylaxis of first variceal bleeding in patients with liver cirrhosis. J Hepatol. 2005;42(suppl 2):79. [Poster #202]

  8. Boyer TD. Primary prophylaxis for variceal bleeding: Are we there yet? Gastroenterology. 2005;128:1120-1122.

  9. Beauchant M, Gournay J, Bernard PH, et al. Treatment of digestive bleeding related to portal hypertension in cirrhotic patients: a multicenter cross-sectional practice survey. J Hepatol. 2005;42(suppl 2):76. [Poster #194]

  10. Aracil C, Monfort D, Piqueras M, et al. Influence of spontaneous hemodynamic response on the efficacy of endoscopic therapy to prevent variceal rebleeding. J Hepatol. 2005;42(suppl 2):76. [Poster #192]

  11. Angeloni S, Nicolini G, Nicolao F, et al. PTFE-Covered stent-grafts for TIPS procedure: one-year patency and clinical results. J Hepatol. 2005;42(suppl 2):75. [Poster #191]

  12. Kalambokis G, Economou M, Kosta P, et al. Effects of somatostatin, terlipressin and somatostatin plus terlipressin on portal and systemic hemodynamics and renal sodium excretion in patients with cirrhosis. J Hepatol.2005;42(suppl 2):82. [Poster #210]

  13. Fernandez J, Ruiz del Arbol L, Serradilla R, et al. Randomized, multicenter, controlled trial comparing oral norfloxacin vs intravenous ceftriaxone in the prevention of bacterial infections in cirrhotics with severe liver failure and gastrointestinal bleeding. J Hepatol. 2005;42(suppl 2):4. [Abstract #5]

  14. Sánchez-Muñoz D, Pineda JA, Diaz F, et al. Hepatic encephalopathy is more frequent, severe and shortens the survival in HCV/HIV-related cirrhosis. J Hepatol 2005;42(suppl 2):85. [Poster #220]

  15. Torre A, Uriz J, Guevara M, et al. Severe hyponatremia as a major risk factor of encephalopathy in cirrhosis. J Hepatol. 2005;42(suppl 2):87. [Poster #225]

  16. Abid S, Mumtaz K, Abbas Z, et al. Efficacy of infusion of L-ornithine L-Aspartate in cirrhotic patients with portosystemic encephalopathy: a placebo controlled study. J Hepatol. 2005;42(suppl 2):84. [Poster #215]

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