Restrictive mitral valve annuloplasty for chronic ischaemic mitral regurgitation: outcomes of flexible versus semi-rigid rings

• DOI: 10.21037/jtd.2019.12.04
• Publication Date: 2020-01-01T05:06:02Z
• Authors: Philip Y. K. Pang; Ming Jie Huang; Teing Ee Tan; See Lim Lim; Madhava J. Naik; Victor T. T. Chao; Yoong Kong Sin; Chong Hee Lim; Yeow Leng Chua
• Keywords: Mitral valve annuloplasty; Demographics

Restrictive mitral annuloplasty is the mainstay of surgical correction chronic ischaemic regurgitation (CIMR). Long-term data on various types rings limited. The aim this study was to investigate clinical and echocardiographic outcomes restrictive in patients with CIMR, comparing use flexible versus semi-rigid rings.A retrospective review conducted for 133 CIMR who underwent at our institution between 1999 2015. Patient demographics postoperative were analyzed.Mean age 61.9±9.2 years 103 (77.4%) male. All coronary artery bypass grafting, a mean 3.3±0.8 grafts. Flexible implanted 39 (29.3%, group F) 94 (70.7%, R). Preoperative New York Heart Association class III/IV 104 (78.2%). Mean preoperative left ventricular ejection fraction 28.8%±10.2%. moderate 51 (38.3%) severe 82 (61.7%). In-hospital mortality occurred 11 (8.3%). Overall survival 1, 5 10 were, respectively, 86.4%, 69.7% 45.9%. At years, overall (group F 53.1%, R 40.0%, P=0.330) freedom from MR 53.8%, P=0.725) did not differ significantly. Freedom hospitalization heart failure 59.3%. Left reverse remodelling, defined as reduction end-systolic volume index >15%, more commonly Group (51.1%) compared (23.1%), P=0.003.Restrictive associated an operative 8.3%. symptoms significant recur approximately 40% after years. Survival remained suboptimal influenced by type ring.