منابع مشابه
Blood Flow in End-to-Side Anastomoses
Blood flow in end-to-side autogenous or prosthetic graft anastomoses is of great interest to biomedical researchers because the biomechanical force profile engendered by blood flow disturbances at such geometric transitions is thought to play a significant role in vascular remodeling and graft failure. Thus, investigators have extensively studied anastomotic blood flow patterns in relationship ...
متن کاملBradykinin, digital blood flow, and the arteriovenous anastomoses.
• During studies on the anticoagulating properties of snake venom, Rocha e Silva and associates discovered the vasoactive polypeptide, bradykinin. The substance was called bradykinin because, in contrast to histamine and acetylcholine, it stimulated smooth muscle to contract after a latent period and because the contraction was gradual. The substance received little attention until recently whe...
متن کاملMR colonography for the assessment of colonic anastomoses.
PURPOSE To assess colonic anastomoses in patients after surgical treatment by means of MR colonography (MRC) in comparison with conventional colonoscopy (CC). MATERIALS AND METHODS A total of 39 patients who had previously undergone colonic resection and end-to-end-anastomosis were included in the study. MRI was based on a dark-lumen approach. Contrast-enhanced T1-weighted (T1w) three-dimensi...
متن کاملProliferative instability and experimental carcinogenesis at colonic anastomoses.
The possibility that proliferative instability around a healing anastomosis promotes carcinogenesis was tested in 234 male Sprague-Dawley rats. Animals received the first of five weekly injections of azoxymethane (total dose 50 mg/kg) either immediately after transection of the descending colon or at 2, 4, 8, and 12 weeks later; controls received handling of the bowel alone. Crypt cell prolifer...
متن کاملEffect of thoracic epidural anaesthesia on colonic blood flow.
BACKGROUND The effect of thoracic epidural block on splanchnic blood flow is unclear. It remains to be resolved if sympathetic block, increases or decreases regional splanchnic blood flow and whether regional splanchnic flow becomes dependent on cardiac output or perfusion pressure. A clear understanding of the regional haemodynamic consequences of an epidural block may modify practice with res...
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ژورنال
عنوان ژورنال: Annals of Surgery
سال: 1987
ISSN: 0003-4932
DOI: 10.1097/00000658-198709000-00011