Posterior Thoracotomy for Reoperative Coronary Artery Bypass Grafting without Cardiopulmonary Bypass: Perioperative Results
Abstract
Background: This retrospective study evaluates morbidity and mortality of reoperative coronary artery bypass grafting (CABG) without cardiopulmonary bypass (CPB) using a posterior thoracotomy to revascularize the lateral aspect of the heart.
Methods: From January 1995 to July 1999, reoperative CABG without CPB was performed on 67 selected patients using a left posterior thoracotomy approach. Preoperative risk factors, postoperative mortality, and major complications were derived from the New York State database.
Results: All patients were operated on without CPB. A total of 1.3 grafts per patient were performed. Freedom from major complications was 95.5%. There were no post-operative cerebro-vascular accidents (CVA) or new neuro-logical deficits. Two patients (3%) had a perioperative acute myocardial infarction. The actual mortality rate was 4.5% (3/67), the expected mortality was 5.1% and the calculated risk adjusted mortality was 2.1%.
Conclusions: Reoperative CABG without CPB to revas-cularize selected coronary artery targets can be safely per-formed using a posterior thoracotomy approach.