Minimal invasive mitral valve repair for mitral regurgitation: results of 1339 consecutive patients☆

摘要: Objective Some have expressed concern that minimal invasive mitral valve (MV) repair may not meet the standard of open surgical techniques. We therefore reviewed our results for MV regurgitation (MR). Material and methods Between March 1999 February 2007, a total 1536 consecutive patients underwent surgery MR at institution using right lateral mini-thoracotomy femoral cannulation cardiopulmonary bypass. Of these, 1339 (87.2%) these form focus this study. The mean grade preoperative was 3.3+/-0.6, age 60.3+/-12.7 years, ejection fraction 59.2+/-15.1% 819 (61.2%) were male. Results procedure successfully performed in all but four (0.3%) who required intraoperative conversion to full sternotomy. techniques consisted ring annuloplasty with or without chordae-replacement Carpentier-type leaflet resection. Concomitant procedures atrial fibrillation ablation 351 (26.2%), tricuspid 80 (6.0%), patent foramen ovale/atrial septal defect closure 88 (6.6%). Mean duration CPB 121+/-38min aortic cross-clamp time 70+/-32min. Thirty-day mortality 2.4%. Follow-up 99% an average 28.1+/-23.9 months postoperatively. Kaplan-Meier estimate survival 5 years 82.6% (95% CI: 78.9-85.7%) freedom from reoperation 96.3% 94.6-97.4%). Conclusions Minimal repair, along certain concomitant procedures, can be vast majority MR. Our large series demonstrates low perioperative complication rates very good durability.