Minimally Invasive Mitral Valve Surgery for Rheumatic Valve Disease
Background: The development of minimally invasive mitral valve surgery has created the motivation for using this approach in young patients with chronic rheumatic valve disease. We report our recent experience with patients undergoing minimally mitral valve surgery in this group of patients.
Methods: Between July 2014 and June 2018, 142 patients with rheumatic mitral valve dysfunction underwent minimally invasive surgery through a right thoracotomy approach at the University Medical Center of Ho Chi Minh City in Vietnam. Diagnosis was confirmed with transthoracic and transesophageal echocardiography (TTE and TEE). We analyzed the in-hospital and midterm follow-up outcomes of this group.
Results: The mean age was 42.6 ± 9.6 years. Sixty patients (42.3%) were male. Sixty-three patients were diagnosed with functional severe tricuspid regurgitation, 29 patients were identified with moderate tricuspid regurgitation, and tricuspid annulus was more than 21 mm/m²). Mitral valve repair was performed in 16 patients (11.3%), and 126 patients underwent mitral valve replacement. Mitral valve repair techniques included annuloplasty, leaflet peeling, and commissurotomy. Thirty-day mortality was 0.7%. Two patients had to be converted to conventional sternotomy, due to left atrial appendage laceration and mitral annular rupture. The overall survival rate was 98.6%. Freedom from reoperation was 97.1%.
Conclusions: In patients with rheumatic valve disease, minimally invasive mitral surgery safely and effectively can be performed with few perioperative complications and good midterm results.
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