Aortic Dissection With Potential Origin From a Mechanical Bypass Anastomosis

Zinkernagel, Martin; Wilhelm, Markus J.; Tavakoli, Reza; Turina, Marko I.; Genoni, Michele (2005). Aortic Dissection With Potential Origin From a Mechanical Bypass Anastomosis. The annals of thoracic surgery, 80(1), pp. 316-318. Elsevier 10.1016/j.athoracsur.2003.12.015

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Ascending aortic dissection is a known complication of cardiac surgery. Off-pump coronary artery bypass surgery seems to be associated with a higher risk for this event as compared with on-pump bypass surgery. This increased risk may result from aortic side-clamping under pulsatile flow as opposed to continuous flow in conventional bypass surgery. Mechanical devices allowing performance of proximal bypass anastomoses without aortic side-clamping are supposed to reduce the risk for aortic dissection. We report a case in which ascending aortic dissection occurred 8 days after off-pump bypass surgery, most likely arising from a mechanically performed proximal bypass anastomosis.

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