which peptide decrease portal venous pressure FAQ

Shunt narrowing or blockage can occur within the first year after the TIPS procedure. Follow-up ultrasound exams are performed frequently after the TIPS procedure to detect these complications. The signs of a blockage include increased ascites (accumulation of fluid in the abdomen) and re-bleeding. This condition can be treated by a radiologist who re-expands the shunt with a balloon or repeats the procedure to place a new stent. Encephalopathy, or abnormal functioning of the brain, can occur with severe liver disease. Hepatic encephalopathy can become worse when blood flow to the liver is reduced by TIPS, which may result in toxic substances reaching the brain without being metabolized first by the liver. This condition can be treated with medications, diet, or by making the shunt inaccessible.

Maintaining good nutritional habits and keeping a healthy lifestyle may help you avoid portal hypertension. Some of the things you can do to improve the function of your liver include the following:

Usually, doctors make the diagnosis of portal hypertension based on the presence of ascites or dilated veins or varices as seen during a physical exam of the abdomen or the anus. Various lab tests, X-ray tests, and endoscopic exams may also be used.

Ascites, an accumulation of fluid in the abdomen, can occur with DSRS surgery. This can be treated with diuretics and by restricting sodium in the diet.

During the TIPS procedure, a radiologist makes a tunnel through the liver with a needle, connecting the portal vein to one of the hepatic veins (veins connected to the liver). A metal stent is placed in this tunnel to keep it open. The procedure reroutes blood flow in the liver and reduces pressure in abnormal veins, not only in the stomach and esophagus, but also in the bowel and the liver. This is not surgery. The radiologist performs the procedure within the vessels under X-ray guidance. The process lasts one to three hours, but you should expect to stay in the hospital overnight after the procedure.

The most common cause of portal hypertension is cirrhosis of the liver. Cirrhosis is scarring that accompanies the healing of liver injury caused by hepatitis, alcohol, or other less common causes of liver damage. In cirrhosis, the scar tissue blocks the flow of blood through the liver. Other causes of portal hypertension include blood clots in the portal vein, blockages of the veins that carry the blood from the liver to the heart, a parasitic infection called schistosomiasis, and focal nodular hyperplasia, a disease seen in people infected with HIV, the virus that may lead to AIDS. Sometimes the cause is unknown.

The onset of portal hypertension may not always be associated with specific symptoms that identify what is happening in the liver. But if you have liver disease that leads to cirrhosis, the chance of developing portal hypertension is high. The main symptoms and complications of portal hypertension include:

Unfortunately, most causes of portal hypertension cannot be treated. Instead, treatment focuses on preventing or managing the complications, especially the bleeding from the varices. Diet, medications, endoscopic therapy, surgery, and radiology procedures all have a role in treating or preventing complications. Other treatment depends on the severity of the symptoms and on how well your liver is functioning. Treatment may include:

The DSRS procedure provides good long-term control of bleeding in many people with portal hypertension. DSRS controls bleeding in more than 90% of patients, with the highest risk of any re-bleeding occurring in the first month.

The DSRS is a surgical procedure during which the vein from the spleen (called the splenic vein) is detached from the portal vein and attached to the left kidney (renal) vein. This surgery selectively reduces the pressure in the varices and controls the bleeding associated with portal hypertension. It is usually performed only in patients with good liver function. A general anesthetic is given before the surgery, which lasts about four hours. You should expect to stay in the hospital from seven to 10 days following surgery.

Before receiving either of these procedures for portal hypertension, the following tests may be performed to determine the extent and severity of your condition:

The TIPS procedure controls bleeding immediately in more than 90% of patients with portal hypertension. However, in about 20% of patients, the shunt may narrow, causing varices to re-bleed at a later time.