Liver is one of essential organs of the body that participates in carrying out many important functions to sustain the life of an individual. It can affect any one disease or disorder and includes one of the commonest cirrhosis. Cirrhosis is a type of chronic liver disease in which liver tissue is replaced with fibrosis, scar tissue and regenerative nodules that result in loss of proper functioning of the vital organ. Alcoholism, fatty liver, hepatitis B and C are the main factors responsible for this chronic liver disease but other factors may also play a minor role for example, viral infections, assembly of toxic metals such as iron and copper due to genetic diseases and autoimmune diseases. Some idiopathic factors also contribute to liver cirrhosis. Poor quality of life increased the risk of infection is actually responsible for the emergence of one of the most common complications of this disease to be identified as ascites. Hepatic encephalopathy and esophageal varices are the other complications associated with cirrhosis. A chronic condition is usually irreversible and in advanced cases, liver transplant is the only solution. The term cirrhosis is actually derived from a Greek word meaning diseased liver. René Laennec cirrhosis given the term in 1819 while carrying out his job.
Liver is a very important organ of the human body as it carries out many critical functions of which two are essential for example, it is participating in clotting proteins to stop the bleeding and it also aids in removing of toxic materials such as drugs can be dangerous for human body. It also partakes in regulating the regular supply of fuels of the body such as glucose and lipids. To perform the essential functions of the cells of the liver must work properly and should establish a close connection with blood so that components can be easily transported as well as removed from the blood by the liver. The relevance of the liver with blood is a unique. Arteries supply a small amount of blood to the liver. Major liver’s blood supply actually comes from the intestinal veins as the blood returns to heart. The main vein that returns to the heart from the intestine is the portal vein. As the portal vein as it passes through the liver breaks it down into smaller and smaller veins. The smallest veins Intimacy in liver cells. The close relationship between cells in the liver and the veins helps more as well as the removal of materials from the blood. The liver cells also line up along the entire length of the sinusoids and when blood passing through the blood sinusoids is collected in larger veins that combine together and form a larger single vanity known as the hepatic vein that I finally returned to the heart.
Liver Cirrhosis this intimate relationship between the liver and blood cells are destroyed. The cells of the liver to live or newly formed may add or remove components in blood but their normal functioning is hampered so they are able to maintain close ties with blood. Formation of scars also hampers the regular flow of blood from the liver to liver cells as a result of pressure in the portal vein and increase the condition known as portal hypertension. The second major problem caused by cirrhosis is a mess on the relationship between cells in the liver and the channel where the bile flow. Bile is a fluid produced by the cells of the liver and it has two important functions in this example, it helps with digestion as well as removal and elimination of toxic substances. The bile produced by liver cells are secreted in very small channels running between the cells of the liver and also line the sinusoids known as canaliculi. These canaliculi empty into the smaller ducts open in larger ducts. Finally all the ducts are open to a single duct that opens into the intestine. So in this way the bile entering the intestine aid in digestion. Along the toxic substances in the bile can enter the intestine and eliminated from the body through the feces. In cirrhosis, canaliculi become abnormal and the relationship between liver cells and canaliculi were destroyed so the cells of the liver is not able to remove toxic substances from the body and they keep accumulating in the body. Digestion of food in the intestine is affected but the minor scale.
The symptoms of cirrhosis develop either due to chronic liver disease or the result of complications of cirrhosis. Many symptoms crop up that are not related to cirrhosis. The chief symptoms include spider angiomata where the vascular lesions develop that are identified by a central arteriole surrounding many smaller vessels. This condition crops due to increased secretion of estradiol. The Palmer erythrema is another phenomenon which results altered sex hormone metabolism in speckled mottling palm. Changes in the structure of the nail samples also appear, Muehrcke lines identified by the paired horizontal lines separated by normal color and this condition crops up due to hypoalbuminemia. Apart from this note the proximal two-thirds of the nail plates will be white with a third red color and is also due to hypoalbuminemia. This condition is known as Terry nail. Clubbing of the nails can also result in which the angle between the nail plate and proximal nail fold is greater than 180. Chronic proliferative periostitis of the long bones results in severe pain and the clinical condition is given the term hypertrophic osteoarthropathy. Contracture Dupuytren ng can be characterized by thickening and shortening of palmar facia resulting in deformities of the fingers. This symptom was prevalent in 33% of patients with liver cirrhosis. Kindly proliferation of tissue to grow male breasts can also occur due to excessive secretion of estradiol known as gynecomastia and is usually 66% cases.
Hypogonadism characterized by impotence, infertility, loss of sexual drive and testicular atrophy may also occur due to suppression of the pituitary function. Liver may be enlarged, normal or shrunken. Portal hypertension results in splenomegaly which the size of the spleen becomes too large than normal. Gathering of fluid in the peritoneal cavity results in the development of ascites. Portal hypertension umbilical vein may be open and abnormality can result in a condition known as caput medusa. Fetor hepaticus can also appear where the sour smell was observed in breathing due to the increased concentration of dimethyl sulphide. Jaundice may also arise in later cases. Fatigue, weakness, loss of appetite, itching and bruising are other symptoms related to cirrhosis. As the disease advances and complications begin to emerge in some individuals these are the first signs of the disease. As the disease advances signal is sent to the kidneys to retain salt and water in the body. The excess salt and water first begin to accumulate in the tissue under the ankles and legs due to the effect of gravity. The fluid accumulation is known as edema or pitting edema. The patient’s condition worsens during the day time of intense inflammation occurs while standing and sitting but lessens inflammation during the night while lying down. These changes are orientated by the effects of gravity. Cirrhosis worsens when fluid begins to accumulate in the abdominal cavity beneath the abdominal wall and the abdominal organs. This results in abdominal swelling, abdominal discomfort and excessive weight gain.
Present fluid in the abdominal cavity provides a favorable condition for bacteria to grow. In normal conditions a very small amount of fluid in the abdominal cavity that is capable of resisting infection and the bacteria can be killed in the abdominal cavity or if they enter the portal vein or liver was eventually killed by cells in the liver. In cirrhosis continuous n collects the abdominal cavity was unable to resist infection. The bacteria that find their way from the intestines to ascites and therefore, the infection is known as spontaneous bacterial peritonitis or SBP and it may terminate fatally. Some patients this complication may be symptoms but others suffer from fever, chills, abdominal pain, diarrhea and tenderness. The scar formed in cirrhotic liver blocks the path of blood returning from the intestines to the heart and this results in increased pressure in the portal vein and conditions are known as portal hypertension. When the pressure becomes very high blood flow with lower pressure towards the heart. The increased pressure in the veins of the lower esophagus and upper stomach expand resulting in varices. The increased portal pressure results in severe bleeding from varices in advanced stages. Bleeding in severe cases may terminate fatally if left untreated. The symptoms of the bleeding varices may include blood vomiting, passage of black stools and orthostatic dizziness. Bleeding from varices can also occur through the intestinal samples form the colon but is extremely rare.
Some of these proteins also escapes digestion and absorption and utilized by bacteria that normally inhabit the intestine. The proteins utilized by bacteria for their own results aim to release some of the elements in the intestine that can be absorbed by the body. Some elements like the ammonia has an adverse effect on brain function. In general, the toxic substances are removed from the body’s intimate relationship of cells in the liver with blood. Once the toxic substances accumulate in the brain in sufficient amounts the functionality of the brain is impaired and the condition known as hepatic encephalopathy. One of the earliest symptoms of hepatic encephalopathy is that the individual falls asleep during the daytime hours than at night. Other symptoms include irritability, inability to perform calculations, memory loss, confusion, depressed level of consciousness and in extreme cases loss of consciousness followed by death. Gathering of toxic substances in the brain also makes the patient sensitive to drugs that are normally removed from the body through the activity of cells in the liver. Advanced cases of cirrhosis may also develop hepatorenal syndrome in which the normal function of the kidney is altered. Rock is not physically damaged but with changes in blood flow within the kidney. Hepatorenal syndrome is characterized by progressive failure of kidney function in which they did not form a sufficient amount of urine even the salt and water retention function is usually maintained. If the liver function was brought back to normal after this syndrome diminishes. This clearly indicates that loss in activity of cells in the liver adversely affects renal function.
Some patients with very advances cirrhosis may develop hepatopulmonary syndrome but its scope is very rare. The patients this syndrome typically experience difficulty in breathing due to excessive secretion of hormones that cause impairment of lung function. The main problem associated with lung function had dropped to blood flow in small vessels that pass through the alveoli of the lungs. Due to decreased blood supply to the alveoli does not take adequate amounts of oxygen resulted in breathing problems. Normal spleen acts as a filter for the removal of older red blood cells, white blood cells and platelets. The blood drains from the spleen joined the portal vein blood from the intestines. While the pressure in the portal vein is very the blood supply to the spleen is blocked. Because of this the increasing size of the spleen and this condition is known as splenomegaly. Spleen swells sometimes so intense that it causes severe pain. As the size of the spleen enlarges it draws more and more blood cells and platelets that their numbers will reduce the blood. The total number of red blood cells, white blood cells and platelets are reduced and the condition is known as hypersplenism. Anemia can cause weakness, infection leads to leucopenia and thrombocytopenia results in loss of blood clotting and cause prolonged bleeding. Cirrhosis also increase the risk of primary liver cancer. Main suggests that a tumor arises in the liver becomes cancer later on and the second condition is that the cancerous growth occurs in other body areas that later spread to the liver also. The most common symptoms of primary liver cancer are abdominal pain, swelling, enlarged liver, weight loss and fever. Liver cancer can also cause increased red blood cell count, low blood sugar and high blood levels of calcium.
A number of factors are responsible for chronic liver disease and more than one cause is present in the same patient. In the western world of alcoholism and hepatitis C is the chief factor that is generally responsible for cirrhosis of the liver. The amount and regularity of use of alcohol is responsible for cirrhosis development. High consumption of alcohol in general damage the cells of the liver. Individuals who drink every day with a value up between of 8-16 ounces per day is usually at a higher risk of liver damage. Alcoholism is responsible for the development of fatty liver. Nonalcoholic fatty liver disease (NAFLD) is a group of diseases such as alcoholic liver disease, up from simple steatosis to nonalcoholic steatohepatitis (NASH) to cirrhosis. All these diseases are identified by heavy accumulation of fat in liver cells. The term nonalcoholic is used because the condition it crops up in individuals who do not consume alcohol but if the cells of the liver were examined microscopically after the symptoms resemble those present in the liver of individuals who consume alcohol. NAFLD is associated with insulin resistance, metabolic syndrome and diabetes type 2 and obesity can be considered as a prime factor associated with clinical symptoms. In the United States about 24% of cases with liver cirrhosis underwent liver transplants and is responsible for NAFLD cirrhosis. Cryptogenic cirrhosis is another phenomenon which is responsible for the liver shunt. This issue was earlier controversial among doctors but now the debate is resolved and nonalcoholic steatohepatitis (NASH) is the main cause. Acute viral hepatitis is a condition in which hepatitis B and hepatitis C virus in the functioning of the liver for many years. Most patients with viral hepatitis generally do not develop chronic hepatitis and cirrhosis. Patients suffering from hepatitis generally recover within weeks without the development of cirrhosis but in the case of hepatitis B and C in severe cases to chronic liver infection and sometimes liver cancer may develop.
Inherited disorders may also result in accumulation of toxic substances within the cells of the liver caused by chronic liver disease are common examples is the abnormal accumulation of copper and iron in liver cells. In hemochromatosis patients develop abnormal habit of absorbing higher levels of iron from food. Excessive accumulation in the body cells are responsible for cirrhosis, arthritis, heart muscle damage leading to heart failure and testicular dysfunction caused by loss of sexual drive. Treatment is focused basically in removing excess amounts of iron from the body through bloodletting. Wilson disease is abnormal accumulation of copper in the eye, liver and brain. Cirrhosis, neurological disturbances and tremors make their appearance when the condition is not considered. Generally oral medications were given aimed at removing the copper from the body through urine. Primary biliary cirrhosis (PBC) is a liver disease caused by abnormality of the immune system and usually found in women. This disease with inflammation and destruction of small bile ducts within the liver area. Bile ducts are the passages in which the bile travels from the liver to the intestine. Bile is a liquid produced by the liver that contains the elements responsible for the digestion and absorption of fat in the intestine and also contains some waste products such as bilirubin. In PBC destruction of small bile ducts caused by blockage of the flow of bile from the liver to the intestine. Number of hepatocytes or liver cells are damaged fibrosis makes its appearance and eventual cirrhosis occurs.
Primary sclerosing cholangitis (PSC) is a rare disease found in patients with ulcerative colitis. In this situation the bile ducts outside the liver become inflamed present, narrowed and clogged. Drawback is responsible for the infection of the bile ducts, jaundice and eventually cirrhosis occurs. In some patients with damage to the bile ducts can directly lead to liver cirrhosis. Autoimmune hepatitis is another liver disease where the immune system becomes abnormal and cirrhosis occurs but the disease is prevalent in women. Progressive inflammation and destruction of hepatocytes are the major symptoms that ultimately result in cirrhosis. Biliary atresia is a condition in which children are born without bile ducts to cirrhosis occurs. Other infanst may be lacking in essential enzymes responsible for cleavage of the sugars to abnormal accumulation of sugar takes place to cirrhosis develops. In rare cases, the loss of a specific enzyme could be caused by alpha 1 antitrypsin deficiency. Liver plays an important role in the formation of proteins, detoxification and storage. It also participates in the metabolism of lipids and carbohydrates. Cirrhosis is often preceded by hepatitis and fatty liver. The signs of cirrhosis is the development of a scar tissue that replaces normal parenchyma, the portal blocks the flow of blood through the liver and finally disturbs its normal functioning. According to recent research, stellate cells that normally store vitamin A plays a pivotal role in the development of liver cirrhosis. The destruction of liver parenchyma results in the activation of these stellate cells and finally the portal blood supply is obstructed. Stellate cells also secretes TGF-1? Which is responsible for the fibrotic response proliferation causing connective tissue. It also secretes TIMP 1 and 2 matrix metalloproteinases prevents from breaking inside the uterus. Spleen becomes enlarged causing hypersplenism and increased sequestration of platelets. Portal hypertension is fully responsible for the appearance of symptoms of cirrhosis.
Liver biopsy was performed by percutaneous, laparoscopic procedures transjuglar and is considered very effective which seeks to cirrhosis. If the clinical, laboratory and radiologic data cirrhosis guess about then biopsy is not necessary. A number of clinical trials in the laboratory can be carried out to assure about the presence of cirrhosis samples, the levels of aminotransferases, alkaline phosphatase, gamma-glutamyl transferase is high. The bilirubin levels were also high. Albumin levels and prothrombin time of fall is also increasing. Globulin, serum sodium levels were increased. Ultrasound is mainly used for the diagnosis of cirrhosis because it shows a small nodular liver but in advanced stages echogenicity becomes prominent. Ultrasound also screen for hepatocellular carcinoma, portal hypertension and Budd-Chiari syndrome. Fibrscan is a newly invented device that uses elastic waves to check the stiffness of the liver that can be read with the help of METAVIR scale. The device generates an image of the liver with the pressure reading. The test is very biopsy and painless. It shows a reasonable relationship to the severity of cirrhosis. Other tests include abdominal CT and liver or bile duct MRI. Gastroscopy was performed in patients with established cirrhosis to exclude the possibility of esophageal varices. If they are found after prophylactic local therapy and treatment of beta blocker is suggested.
In general, the liver becomes enlarged macroscopically but with the advancement of liver disease shrinks in size small. The surface of the liver becomes irregular and acquires yellowish color. Three types of macroscopic nodules similar, macronodular, micronodular and mixed cirrhosis was identified. In micronodular form of nodules less than 3 mm in size while the macronodular form nodules greater than 3 mm in size. The mixed cirrhosis consists of mixed nodules of varying sizes. A number of microscopic pathological features were identified for example cirrhosis, the presence of regenerating nodules in the hepatocytes, presence of fibrosis. Fibrosis is responsible for the destruction of other normal structures such as sinusoids, space of Disse, portal hypertension, deterioration of other vascular structures. A number of other entities may also be responsible for developing cirrhosis. In chronic hepatitis B is infiltration of the liver parenchyma with lymphocytes however, cardiac cirrhosis, the amount of increase in erythrocytes and fibrosis occurs in hepatic veins. In primary biliary cirrhosis, the fibrosis occurs around the bile duct, bile granulomas and pooling can be identified, alcoholic cirrhosis of the liver with infiltration with neutrophils. The severity of cirrhosis was classified on the basis of Child-Pugh Score. The score makes use of bilirubin, albumin, INR, presence and severity of ascites and encephalopathy and the patients were then kept in A, class B and C. Class A individuals have a favorable prognosis as belonging to class C in the risk of death. Points is first given of Child and Turcotte in 1964 and was modified by Pugh et al., In 1973.
According to a study conducted in the United States in 2001, about 27,000 people die each year due to cirrhosis and chronic liver disease. Treatment of cirrhosis can be done in four ways similar, avoiding further damage to the liver, treatment of complications of cirrhosis, the liver cancer prevention and early detection and eventual liver transplantation. Consumption of a balanced diet with day-to-day use of a multivitamin can prevent further liver damage. Patients with primary biliary cirrhosis will require additional doses of vitamins D and K. Avoid drugs that damage liver cells and as quitting alcohol may protect the liver from damage. Avoid non-steroidal anti-inflammatory drugs, the eradication of the virus of hepatitis B and C, removing blood from the patient with hemochromatosis rid of excess iron, oral medications for removing excess copper through the urine can also prevent further damage of liver cells. Salt and water retention can cause swelling of the legs and ankles (edema) or abdomen (ascites), particularly in patients with cirrhosis. Doctors advise patients to restrict dietary intake of sodium. The amount of salt intake is limited to 2 grams per day and fluid intake should not exceed 1.2 liters a day. Diuretic drugs are often suggested by health experts to the excess salt and water can leave the body through urine. The blood urea and creatinine level of the kidneys should be monitored regularly while using diuretics.
If large varices develop in the esophagus and upper part of the abdomen then the patient may experience excessive bleeding that may terminate fatally. Propranolol is an effective beta blocker commonly used for stopping the bleeding. Patients with abnormal sleep cycle, impaired thinking, strange behavior or other signs of hepatic encephalopathy should be treated with low protein diet and oral lactulose. Dietary protein is restricted because it is responsible for generating the toxic substances responsible for hepatic encephalopathy. Lactulose is a liquid that traps toxic compounds in the colon and therefore are not absorbed into the blood stream to cause encephalopathy. The filtration of blood by an enlarged spleen normally results in mild reduction of red blood cells, white blood cells and platelets that generally do not require treatment. Severe anemia requiring transfusions or hormone therapy to stimulate red blood cell production. If the number of white blood cells after rejection of a hormone known as granulocyte-colony stimulating factor is used. No approved drugs are yet available to increase the number of platelets. Patients suffering from spontaneous bacterial peritonitis usually undergo paracentesis. Some types of liver disease is associated with increased risk of cancer especially hepatitis B and C and move ahead of the liver just might save the lives of patients. Cirrhosis is irreversible and in patients where all other possible methods fail to give the desired result, liver transplantation is the only hope. An average of about 80% of patients who have undergone liver transplantation live for about five years after transplantation.
