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2022年11月29日 · Written by WebMD Editorial Contributors. Exercises to Help Prevent Bladder Incontinence. Safety Considerations. 4 min read. Incontinence can have a number of causes, from surgery to injuries to...
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2023年8月3日 · What Is Anemia? Anemia Symptoms. Anemia Types and Causes. Anemia Diagnosis. 10 min read. What Is Anemia? Anemia is defined as a low number of red blood cells. In a routine blood test,...
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- Pathophysiology
- Causes
- Prognosis
- Diagnosis
Portal hypertension is an increase in the blood pressure within a system of veins called the portal venous system. Veins coming from the stomach, intestine, spleen, and pancreas merge into the portal vein, which then branches into smaller vessels and travels through the liver. If the vessels in the liver are blocked due to liver damage, blood canno...
The most common cause of portal hypertension is cirrhosis of the liver. Cirrhosis is scarring which 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 th...
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.
Usually, doctors make the diagnosis of portal hypertension based on the presence of ascites or of 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.
2023年11月7日 · What Is Atherosclerosis? Atherosclerosis is when plaque -- a sticky substance made of cholesterol, fat, calcium, and other materials — builds up inside the walls of your arteries. Arteries are...
2023年11月14日 · What Is a Ferritin Blood Test? A ferritin test measures the amount of a blood protein called ferritin, which stores iron. Think of your body as a kitchen pantry. Most of it is stocked with food...
