首页 | 本学科首页   官方微博 | 高级检索  
     


The effect of haemorrhage on gastric circulation and acid output in the dog.
Authors:G Szabó  I Benyó  J Sándor
Affiliation:Third Department of Surgery, Semmelweis University Medical School, Budapest Hungary
Abstract:Blood flow in the portal vein and the left gastric artery was measured electromagnetically and gastric mucosal perfusion was determined by pertechnetate clearance in anaesthetized dogs. Bleeding the animals to arterial pressures of 100 and 60 mmHg respectively reduced portal venous flow and markedly increased the mesenteric inflow resistance. Left gastric arterial and gastric mucosal blood flow were decreased without significant vascular resistance change only in proportion to perfusion pressure reduction. Gastric acid output decreased but did not stop even at the lower level of haemorrhagic hypotension. It is concluded that ischaemia and acid, probably in the presence of regurgitated bile, may play an important role in the development of stress ulcers.
Keywords:Requests for reprints should be addressed to: Mr G. Szabó   National Institute of Traumatology   Budapest   Hungary.
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号