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Reoperations represent relatively frequent events in adults with congenital heart disease (ACHD). Cardiac operations in these patients present major difficulties in management and technique. Although reoperations in ACHD are becoming increasingly frequent, limited knowledge exists regarding perioperative risk factors.

The study included 164 ACHD patients who underwent cardiac reoperations between January 2002 and December 2007 at our institution. Preoperative and intraoperative data were analyzed to identify morbidity and mortality risk factors.

Reoperations included pulmonary valve implantation or conduit replacement in 60, aortic valve/root procedures in 36, residual atrial or ventricular septal defect closure in 19, and Fontan operation/conversion in 19. Hospital mortality was 3.6%. The mean mechanical ventilation time was 26 hours. Mean intensive care unit …