Abstract
This paper reports the use of a double-lumen cannula designed to deliver cardioplegic solution, decompress the left heart during ischemic arrest, and aspirate air from the aorta before cardioplegic delivery and after the aortic cross-damp is removed. The unique feature of this cannula is its doublelumen design which allows air to be aspirated from the aorta prior to, and concurrent with, the beginning of the delivery of cardioplegic solution, to prevent the introduction of air into the coronary arteries. We will outline the unrecognized sources of this air and why it is advantageous to evacuate it before a subsequent infusion of cardioplegia.
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