Abstract:Coronary blood flow and vascular reactivity were studied at intervals after donor dog hearts were transplanted into the necks of recipient dogs. Coronary blood flow was measured with an electromagnetic flow transducer on the carotid artery of the recipient dog, and coronary vascular reactivity was assessed from the response of the coronary vessels to the vasodilator drugs, dipyridamole and adenosine. During the first 4 days after the transplant, resting coronary blood flow and vascular resistance did not chang… Show more
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