Does hypothermic circulatory arrest or prolonged cardiopulmonary bypass time affect early outcome in reoperative aortic surgery?

AIM: Prolonged cardio-pulmonary bypass (CPB) time, usually necessary for reoperations, is known to increase mortality in coronary bypass procedures and aortic reoperations. We investigated if prolonged CPB time and arch reconstruction in reoperations of the thoracic aorta affect in-hospital outcome. METHODS: Twenty-nine patients underwent reoperations on the thoracic aorta.

The reoperations performed were aortic root replacement with composite graft without aortic arch involvement in ten patients, isolated ascending aorta replacement in six patients, aortic arch replacement as a primary procedure in two patients, and aortic arch in conjunction with ascending or descending aorta replacement in 11 patients. RESULTS: Fourteen patients had aortic reoperation with deep hypothermic circulatory arrest (DHCA) and 15 without DHCA. The in-hospital mortality rate was 13.8%.

The use deep hypothermic circulatory arrest or CPB time did not affect early outcome. Previous coronary artery bypass ... more.

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