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You are here: Contents > 2015 > Volume 24 Number 4 July 2015 > MITRAL VALVE DISEASE > Early and Late Outcomes After Minimally Invasive Mitral Valve Repair Surgery

Early and Late Outcomes After Minimally Invasive Mitral Valve Repair Surgery

Enoch Akowuah1, Clare Burdett1, Khalid Khan1, Andrew Goodwin1, Ignacio Bibiloni Lage1, Mohamed El-Saegh1, Tracey Smailes1, Steven Hunter2

1James Cook University Hospital, Middlesbrough, Teeside, 2The Northern General Hospital, Sheffield, United Kingdom

Background and aim of the study: The practice of thoracoscopic assisted minimally invasive mitral valve repair surgery is less common in the United Kingdom than in Europe or the USA. The main reasons for this are concerns around increased operative risk, feasibility and durability of valve repair. The study aim was to report the early and late outcomes of minimally invasive mitral valve repair surgery at a single UK center.

Methods: Patients undergoing isolated minimally invasive mitral valve repair between 2003 and 2013 were reviewed retrospectively. Data were obtained from a prospectively maintained institutional database, a comprehensive review of individual case notes, echocardiograms, intensive care charts, clinic letters, discharge summaries, and the authors’ follow up database (based on data supplied by the UK Office for National Statistics).

Results: A total of 190 patients (mean age 61 years; mean EuroSCORE 3.9) underwent the procedure. The mean cardiopulmonary bypass and aortic cross-clamp times were 153 and 108 min, respectively. Rates of major postoperative complications were: reoperation for bleeding 3.7%, stroke 1.6%,

intra-aortic balloon pump 2.1%, and venovenous hemofiltration 2.6%. The median intensive care stay was one day, and the median hospital stay five days (21.8% of patients were discharged by day 3). The 30-day mortality was 1.1% (n = 2). Echocardiography performed at discharge or six weeks postoperatively showed less than mild mitral regurgitation (MR) in 91.3%. The median duration of follow up was 57 months. During the entire follow up period, four patients (2.1%) underwent repeat surgery for recurrent MR (between 15 months and five years). Of 188 patients discharged from hospital, nine (4.8%) died during follow up: median 5.3 years (range 1.3-10.7 years) post surgery.

Conclusion: These data are the first from the UK demonstrating early and late outcomes after thoracoscopic assisted minimally invasive mitral valve repair surgery. The data establish the safety and efficacy of the technique and, importantly, lend further support towards a prospective randomized comparison of minimally invasive versus conventional mitral valve repair surgery.

The Journal of Heart Valve Disease 2015;24:470-477


Early and Late Outcomes After Minimally Invasive Mitral Valve Repair Surgery

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