Isolated tricuspid valve surgery in patients with previous cardiac surgery.

Abstract

Few studies have been published in literature on outcomes of isolated tricuspid valve (TV) surgery when performed as a reoperation. Hence, we analyzed our early and midterm results of TV surgery in this unique group of patients. We performed a retrospective analysis of 82 consecutive patients who underwent isolated TV surgery as a reoperation at our institution between 1997 and 2010. Symptomatic TV regurgitation (84.2%), acute endocarditis (14.6%), and valve thrombosis after TV repair (1.2%) were the indications for surgery. A minimally invasive access through a right anterolateral thoracotomy was the preferred approach in 60% of the patients. Previous cardiac operations included mitral, aortic, and TV surgery in 60%, 29%, and 27% and coronary bypass surgery in 18%, usually performed as combined procedures. Elective surgery was performed in 67.1% of the patients. Mean patient age was 64.1 ± 11.9 years, 28% being male with an average logistic EuroSCORE of 16.4% ± 14.3%. Follow-up was 96% complete, with a mean duration of 2.6 ± 2.4 years. Overall thirty-day mortality was 14.6%; for patients without and with endocarditis, it was 12.9% and 25%. Thirty-day mortality for patients undergoing elective surgery was 4.0%. Overall 2-year survival was 63.0% ± 5.5%. The 2-year freedom from TV-related reoperation was 93.5% ± 3.3%. Postoperative results of isolated TV surgery as a reoperation are acceptable when performed electively but dismal in patients undergoing nonelective surgery. Thus, redo TV surgery, when indicated, should be performed sooner rather than later. Minimally invasive surgery through a right lateral minithoracotomy is a safe approach for patients with elective surgery.