Abstract 14509: Isolated Tricuspid Valve Surgery is Safely Feasible in Carefully Selected Patients With Dilated Right Heart

Introduction: Patients with severe tricuspid regurgitation (TR) and right heart failure (RHF) are a heterogeneous group for whom surgery is considered high risk but for whom operability, risks, and benefits are still not well defined. Our objectives were to identify drivers and contributors to TR and right ventricular (RV) dysfunction, and to study outcomes related to degree of RV dysfunction and RHF after contemporary isolated tricuspid valve surgery (TVS). Methods: From 1/2007 to 12/2013, 62 patients with severe TR, functional in 31 and structural in 31, and variable degree of RHF underwent isolated TVS. All had prior cardiac surgery. Preoperative cardiac catheterization and echocardiograms were reviewed to assess right heart morphology and function. Results: At the time of surgery, increased right heart chamber dimensions and pressures were evident, but RV function was preserved (tricuspid anular plane systolic excursion 16.5 ± 5.86 mm, RV free wall strain -16.72% ± 5.82%, and RV S’ velocity 11.4 ± 4.7...