Abstract
In cross-circulation experiments and in acute transplantation experiments, it is often necessary to use coagulable blood because surgery is contemplated after the blood vessels have been connected. Various methods have been proposed to avoid thrombosis and assure adequate blood flow in such arterial anastomoses. 1 End-to-end anastomosis with silk sutures is satisfactory but is too time-consuming for acute experiments. Arterial anastomosis by means of Payr cannulae, the method recommended by Heymans and his co-workers, 2 proved unsatisfactory in our laboratory.
The method of arterial anastomosis to be described is very simple and can be performed rapidly. It has been successful every time it was attempted and has been found to provide adequate blood flow for many hours. This method involves the use of a wire eversion frame (a, Fig. 1). One artery is pulled through the loop of the frame, is everted over the loop and then tied to the frame. The everted artery is now placed within the lumen of the second artery, which is also tied to the frame. The flowing blood touches only endothelium so that thrombosis does not occur.
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