Mesenteric vein thrombosis



See ((Superior mesenteric venous thrombosis))


Mesenteric venous thrombosis occurs when a blood clot forms in one or more of the major veins that drain blood from the intestines. 



There are three veins that carry blood from the intestines:



the superior mesenteric vein



the inferior mesenteric vein



the splenic vein



These veins deliver blood to the liver through the hepatic portal vein.



 A clot in any of these veins blocks blood flow to the intestines, which can lead to damage and tissue death.



 esenteric venous thrombosis symptoms: abdominal pain, bloating, diarrhea, vomiting, fever, and bloody stools.






injury to the abdomen



genetic disorders of clotting, such as Factor V Leiden thrombophilia.



abdominal infections, such as appendicitis



inflammatory bowel diseases, such as diverticulitis, ulcerative colitis, and Crohn’s disease



Inflammation of the pancreas



Liver disease and cirrhosis



Cancers of the GI system



Use of hormone therapies/birth control pills. 






Mesenteric venous thrombosis (MVT) is a blood clot in one or more of the major veins that drain blood from the intestine. 



The superior mesenteric vein is most commonly involved.



MVT is more common in men than women. It mainly affects middle aged or older adults.



Diagnosis is usually based on symptoms and imaging tests. 



Typically, a CT abdominal scan is used. 



Other imaging tests may include an ultrasound or MRI scan of the abdomen.



An arteriogram may also help determine the location of a blood clot. 



Anticoagulants are the main treatment.



In some cases  thrombolysis is possible, and rarely the clot can be removed by 


thrombectomy. This



Mesenteric venous thrombosis can decrease the supply of blood to the tissues and cells of the digestive system. 



This ischemia causes intestinal damage or the death of intestinal tissue.



Bowel infarction can be life-threatening, and it requires emergency surgery to remove  the dead portion of the intestine.



Peritonitis  can result from a mesenteric venous thrombosis. 



Surgery may require resection of the affected bowel.





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