Causes of small intestinal bleeding?

summary

The small intestine is the most important digestive organ of the human body, but today, there are many reasons leading to diseases in the small intestine. For example, incorrect diet is an important cause of small intestine diseases. There are many possible diseases in the small intestine, such as small bowel cancer. In addition, there are many diseases, such as intestinal ulcer, enteritis and so on, We should consider the following causes.

Causes of small intestinal bleeding?

The common causes of small intestinal bleeding are: inflammatory bowel disease, polyps, diverticulum, vascular malformation, malignant tumor, etc. It is suggested to go to the hospital for examination when the bleeding stops or the amount of bleeding is small, so as to do barium meal examination or enteroscopy of the whole gastrointestinal tract. If the amount of bleeding is large, surgical exploration can also be considered.

The hemorrhage caused by tumor is intermittent massive hemorrhage or chronic small hemorrhage. The course of benign tumor can reach more than 10 years, with repeated bleeding. The course of malignant tumor is short, some patients have abdominal pain, abdominal mass and intestinal obstruction. The secondary causes were infectious diseases (enteric typhoid), diverticulum, Crohn's disease, vascular disease and so on.

In duodenal ulcer, small intestinal diverticulosis, vascular malformations (such as small intestinal vascular dysplasia, Dieulafoy disease, portal hypertensive bowel disease, aortic intestinal fistula, hereditary telangiectasia, etc.), inflammatory bowel disease, vasculitis, non steroidal inflammatory drugs (NSAIDs), ischemic bowel disease, small intestinal tumor and other causes, causing small intestinal vascular damage, leading to small intestinal bleeding. Foreign scholars reported that vascular malformation was the first cause of small intestinal bleeding (70% - 80%), and tumor was the second (5% - 10%). Domestic scholars reported that tumor lesions accounted for the first place (11% - 60%), among which benign tumors were more common, while malignant tumors were leiomyosarcoma, lymphoma and adenocarcinoma; Small intestinal diverticulum was the second (13%); Vascular malformations were less than 10%. Different diseases cause small intestinal bleeding, the bleeding mode and bleeding speed are also different.

matters needing attention

We should master the reasonable diagnosis procedure, identify the location and cause of small intestinal bleeding as soon as possible, and carry out corresponding surgical resection, endoscopic treatment and drug treatment according to the different causes of small intestinal bleeding. For the patients who are not clear about the cause and location of bleeding and highly suspected of small intestinal bleeding, laparotomy is feasible to explore and remove the small intestine at the lesion site when there are indications for laparotomy.