Development of Interarterial Intercoronary Anastomoses by Arteriovenous Fistula Between Pulmonary Artery and Left Atrium.

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Abstract
1. No interarterial intercoronary anastomoses between any branch of right and left coronary artery could be demonstrated at autopsy in normal dogs with a vinyl plastic injection mass. 2. Following surgical production of arteriovenous fistula (10-12 mm long) between main pulmonary artery and left atrium, interarterial intercoronary anastomoses between right and left coronary arteries were demonstrated at postmortem examination in 5 of 7 dogs examined at intervals of 2 days to 14 weeks following surgery. These anastomotic communications were arterial in size.