0276: Balloon mitral valvotomy for patients with mitral stenosis in atrial fibrillation: immediate and long term prognosis

BackgroundAtrial fibrillation (AF) is a common finding in patients with severe mitral stenosis requiring Balloon Mitral Valvotomy (BMV). Its immediate and long term prognosis remains controversial.ObjectivesWe sought to evaluate the effect of AF on the immediate and long-term (23 years) outcome of patients undergoing BMV.MethodsThe immediate procedural and the long-term clinical outcome after BMV of 139 patients with AF were collected and compared with those of 381 patients in normal sinus rhythm (NSR).ResultsPatients with AF were older (43.3 vs. 29.7 years; p < 0.001), had frequently a history of systemic embolism (9.4% vs. 1.6%, p> 0.001) and of mitral commissurotomy (28.1% vs. 19.4%, p=0.035). Patients with AF had more frequently a Wilkins score > 8 (51.4% vs. 30.9%, p