Why patient spit blood the intersection of _ and general knowledge liver cirrhosis

Why patient spit blood the intersection of _ and general knowledge liver cirrhosis
At the time of liver cirrhosis, because of the high pressure of portal vein, often form several pieces of traffic to prop up, there are four its main one: (1 ) The traffic of section is propped up under fundus of stomach and gullet. (2)Rectum underpart and traffic of the anal canal are propped up. (3)The wall traffic of belly is propped up. (4)The traffic is propped up behind the peritoneum. The above-mentioned four traffic prop up with fundus of stomach and traffic of section prop up at clinic most important under the esophagus. In normal cases, it is very tiny to prop up the traffic, blood flow volume is not big. When the reflux blockage of portal vein, venous pressure increases, because portal vein does not have vein one, so portal vein blood reversible to flow into above-mentioned four traffic prop up, and make the traffic propped up and expanded. Fundus of stomach, and section intravenous because the pressure difference relatively loud under the esophagus, the intravenous anger one takes place first. Become thin in the mucous membrane of the esophagus or stomach of an intravenous position of anger with the passing of time, it is easy to be damaged and broken to cause bleeding. For instance mechanical injuries of food, the gastric juice backflow one chemical lesion,it and cough, vomiting, constipation,etc. belly be increased to be pigeonholed, can all make the pressure of portal vein rise suddenly, cause an intravenous break-up of anger to bleed, namely it is acute to form upper digestive tract and bleed, shown as and spittinged blood or had blood in one's stool. The digestive tract of once take place and bleed at least all one's life to about 2/3 of the liver cirrhosis patients. Spitting blood and/or have blood in one's stool, it is the clinical manifestation with common liver cirrhosis. The main reason why the upper digestive tract of liver cirrhosis bleeds is: 1. Esophagus, fundus of stomach are variceal to break to bleed: The first place of bleeding etc., 60% - 75% ; Clinical manifestation is in order to spitting blood and/or have blood in one's stool, the bleeding amount is great, can be with losing blood shock with different intensity, the condition is critical. What merits attention is, the bleeding of the above-mentioned position can amalgamate bleeding of other positions at the same time, gastrocopy is the only reliable diagnostic method. 2. Peptic ulcer bleeds: Occupy 15% - 30% ; Clinic show as wicked mainly and blood, few losing blood shock. 3. Portal vein high pressure stomach trouble bleeds: Occupy 10% - 20% ; There is little bleeding amount, clinic and peptic ulcer are very difficult to bleed to distinguish. Other: Liver cirrhosis patient amalgamate backflow esophagitis can cause and bleed also, a few patients can amalgamate cancer of the esophagus, gastric carcinoma,etc. and bleed.




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