Beating versus arrested heart isolated tricuspid valve surgery : long-term outcomes

Background: Isolated tricuspid valve (TV) surgery is a rare procedure generally considered at high risk for perioperative mortality and poor long-term outcomes. Surgical treatment can be performed with either an arrested heart (AH) or beating heart (BH) technique. The aim of this study was to compare the outcomes of isolated tricuspid surgery with 2 different approaches. Methods: The Surgical-Tricuspid Study is a multicenter international retrospective study enrolling adult patients who underwent isolated TV procedures (n = 406; age 56 ± 16 years; 56% female) at 13 international sites. The AH and BH strategies were performed in 253 and 153 patients, respectively. Propensity score-matched analysis was used to compare groups. Results: After matching, 129 pairs were obtained and analyzed. The 30-day mortality rate was 6.2% versus 5.0% in the AH and BH groups, respectively (P =.9). The rates of acute renal failure requiring replacement therapy (10% versus 3%; P =.02) and stroke (1.6% versus 0%; P =.08) were numerically higher in the AH group. The 6-year survival rate was 67% ± 6% versus 78% ± 5% in the AH and BH groups, respectively (P =.18), whereas freedom from cardiac death was 75% ± 5% versus 84% ± 4% (P =.21). The 6-year composite cardiac end point of cardiac death and reoperation rate was 60% ± 9% versus 86% ± 5% (P =.024) comparing AH-TV replacement and BH-TV repair groups. Conclusions: Isolated TV surgery performed with a BH strategy is a safe option and resulted in a trend of increased long-term survival and freedom from reoperation compared with the standard AH technique. Patients undergoing BH valve repair had the best long-term outcome.