VIDEO ASSISTED MINIMALLY INVASIVE MITRAL VALVE SURGERY VIA RIGHT MINITHORACOTOMY: INDICATIONS, TECHNIQUES AND RESULTS

Abstract

Background: Minimally invasive mitral valve surgery (MIMVS) is under rapid development worldwide in recent years. The number of MIMVS is exceeding that of conventinal method via sterotomy in developped countries.                                                                                                                                                                                                                                  Objectives: Assess of indications, techniques, short term result of MIMVS and the experience in building a new technique in our center.                                                                            Method: Our restrospective reviewed 72 patients underwent minimally invasive mitral valve surgery at the University Medical Center at Ho Chi Minh City from 08/2014 to 08/2016. Results: 72 patients underwent minimally invasive mitral valve surgery. Mean age was 44.87+ 12.2 Male to female ratio was 1.65:1. Patients with mitral valve repair included 45 degenerative valves, 3 post-rheumatic valves, 1 endocarditis and 4 congenital valves. The main mechanism was posterior leaflet prolapse (22 patients), anterior leaflet prolapse consists of 10 patients, there were 4 patients with both leaflets prolapse and 3 patients with anterior leaflet cleft. We encountered 7 complications: 4 hemothorax requiring draining, 1 annular rupture, 1 reoperation due to residual mitral regurgitation and 1 reoperation due to pericardial effusion. Goals of operation were achieved 90.5%.            Conclusions: In our experiences with MIMVS procedure, the early outcomes are satisfactory with low morbidity and no mortality, MIMVS is though safe and feasible, provided that patient selection is good and safety protocols are followed.