Jay W. Marks, MD, is a board-certified internist and gastroenterologist. He graduated from Yale University School of Medicine and trained in internal medicine and gastroenterology at UCLA/Cedars-Sinai Medical Center in Los Angeles.
Transjugular intrahepatic portosystemic shunt or (TIPS) is a shunt (tube) placed between the portal vein which carries blood from the intestines and intraabdominal organs to the liver and the hepatic vein which carries blood from the liver back to the vena cava and the heart.
For what is TIPS used?
It is used primarily (but not exclusively) in patients with
cirrhosis in which the scar tissue within the liver causes
partial blockage of flow of blood passing through the liver from the portal vein to the hepatic vein. The blockage increases the pressure in the portal vein, which is called portal hypertension. As a result of the increase in pressure,
portal blood flows preferentially through the branches of the portal vein to
veins coming from abdominal organs that normally drain into the portal vein.
These organs connect with veins that do not empty into the portal vein and thus
bypass the liver. Thus, much of the flow of blood bypasses the liver. If these veins going to the other organs enlarge, they are referred to as
variceal veins or varices. Varices that form in the stomach and esophagus may rupture and bleed.
Liver disease can be cause by a variety of things including infection (hepatitis), diseases such as gallstones, high cholesterol or triglycerides, blood flow obstruction to the liver, and toxins (medications and chemicals). Symptoms of liver disease depends upon the cause; however, common symptoms may include nausea, vomiting, upper right abdominal pain, and jaundice. Treatment depends upon the cause of the liver disease.
Cirrhosis of the liver refers to a disease in which normal liver cells are replaced by scar tissue caused by alcohol and viral hepatitis B and C. This disease leads to abnormalities in the liver's ability to handle toxins and blood flow, causing internal bleeding, kidney failure, mental confusion, coma, body fluid accumulation, and frequent infections. Symptoms include yellowing of the skin, itching, and fatigue.
Encephalopathy means brain disease, damage, or malfunction. Causes of encephalopathy are varied and numerous. The main symptom of encephalopathy is an altered mental state. Other symptoms include lethargy, dementia, seizures, tremors, and coma. Treatment of encephalopathy depends on the type of encephalopathy (anoxia, diabetic, Hashimoto's, hepatic, hyper - hypotensive, infectious, metabolic, infections, uremic, or Wernicke's) are examples of types of encephalopathy.
Portal hypertension is most commonly caused by cirrhosis, a disease in which results from scarring of a liver injury. Other causes of portal hypertension include blood clots in the portal vein, blockages of the veins that carry the blood from teh liver to the heart, and a parasitic infection called schistosomiasis.
Coma is the inability to waken or react to the surrounding environment. The Glasgow Coma Scale is frequently used to measure the depth of coma. Causes of coma include trauma, bleeding, edema, lack of oxygen, poisoning, or hypoglycemia. Prognosis for a patient in a coma depends on the cause of the coma.
Heart failure is caused by many conditions including coronary artery disease, heart attack, cardiomyopathy, and conditions that overwork the heart. Symptoms of heart failure include congested lungs, fluid and water retention, dizziness, fatigue and weakness, and rapid or irregular heartbeats.
Varices are dilated blood vessels usually in the esophagus or stomach. Symptoms of bleeding varices include vomiting blood, black stools, low blood pressure, shock, and rapid heart rate. Bleeding varices are a medical emergency. Treatment may involve liver transplant, devascularization, distal splenorenal shunt, banding, sclerotherapy, or transjugular intrahepatic protosystemic shunt.
Encephalopathy is a term that means brain disease,
damage, or malfunction. Encephalopathy can present a very broad spectrum of
symptoms that range from mild, such as some memory loss or subtle personality
changes, to severe, such as dementia,
seizures, coma, or death. In general,
encephalopathy is manifested by an altered mental state that is sometimes
accompanied by physical manifestations (for example, poor coordination of limb
movements).
The term encephalopathy is very broad and in most cases,
is preceded by various terms that describe the reason, cause, or special
conditions of the patient that leads to brain malfunction. For example, anoxic
encephalopathy
means brain damage due to lack of oxygen, and hepatic encephalopathy means brain
malfunction due to liver disease. Additionally, some other terms either describe body conditions or
syndromes that lead to a specific set of brain malfunctions. Examples of the...