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Bleeding esophageal varices
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| Bleeding esophageal varices |
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Definition:
Bleeding esophageal varices result from dilated veins in the walls of the lower part of the esophagus and sometimes the upper part of the stomach. Causes, incidence, and risk factors:
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Bleeding varices are a life-threatening complication of portal hypertension (increased blood pressure in the portal vein caused by liver disease). Increased pressure causes the veins to balloon outward. The vessels may rupture, causing vomiting of blood and bloody stools or tarry black stools. If a large volume of blood is lost, signs of shock will develop. Any cause of chronic liver disease can cause bleeding varices.
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