• Jeong Yoon Jang, Ran Heo, Sahmin Lee, Joon Bum Kim, Dae-Hee Kim, Sung-Cheol Yun, Jong-Min Song, Jae-Kwan Song, Jae-Won Lee, and Duk-Hyun Kang.
• Division of Cardiology, Gyeongsang National University Changwon Hospital, Gyeongsang National University School of Medicine, Changwon, Korea.
• Am. J. Cardiol. 2017 Mar 15; 119 (6): 905-910.

AbstractThe optimal decision regarding whether to repair or replace the tricuspid valve (TV) remains controversial in patients with very severe functional tricuspid regurgitation (TR). We sought to compare clinical outcomes of TV repair versus replacement for very severe TR associated with severe TV tethering. We included 96 consecutive patients (20 men, 58 ± 11 years of age) who had both severe tethering of TV and very severe functional TR and consequently underwent TV surgery during left-sided valve surgery. TV repair was performed on 79 patients (repair group), whereas 17 patients underwent TV replacement (replacement group). The primary end point of the study was defined as the composite of operative mortality, cardiac death, repeat TV surgery, and hospitalization due to congestive heart failure during follow-up. The 2 groups had similar baseline clinical, echocardiographic, and operative characteristics, but operative mortality was significantly higher in the replacement group than in the repair group (p = 0.008). During a median follow-up of 87 months, 19 patients (24%) in the repair group and 8 (47%) in the replacement group attained the composite end point, and TV replacement was independently associated with end points in the Cox proportional hazards analysis after adjustment with propensity score (hazard ratio 4.033, 95% CI 1.470 to 11.071; p = 0.007). In conclusion, compared with TV repair, replacement was associated with higher operative mortality and worse long-term clinical outcomes in patients with very severe functional TR. Repair should be the preferred surgical option even for severe TR associated with more advanced tethering and right ventricular dilatation.Copyright © 2017 Elsevier Inc. All rights reserved.

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