Ortega and M JacobsI Palacios, P C Block, S Brandi, P Blanco, H Casal, J I Pulido, S Munoz, G D'Empaire, M A
Percutaneous balloon valvotomy for patients with severe mitral stenosis.
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THERAPY AND PREVENTIONVALVUIAR HEART DISEASE
Percutaneous balloon valvotomy for patients withsevere mitral stenosisIGOR PALACIOS, M.D., PETER C. BLOCK, M.D., SERGIO BRANDI, M.D., PABLO BLANCO, M.D.,HUMBERTO CASAL, M.D., JOSE 1. PULIDO, M.D., SIMON MUNOZ, M.D.,GABRIEL D'EMPAIRE, M.D., MIGUEL A. ORTEGA, M.D., MARSHALL JACOBS, M.D.,AND GUS VLAHAKES, M.D.
ABSTRACT Thirty-five patients with severe mitral stenosis underwent percutaneous mitral valvot-omy (PMV). There were 29 female and six male patients (mean age 49 3 years, range 13 to 87).After transseptal left heart catheterization, PMV was performed with either a single- (20 patients) ordouble- (14 patients) balloon dilating catheter. Hemodynamic and left ventriculographic findings wereevaluated before and after PMV. There was one death. Mitral regurgitation developed or increased inseverity in 15 patients (43%). One patient developed complete heart block requiring a permanentpacemaker. PMV resulted in a significant decrease in mitral gradient from 18 + 1 to 7 + 1 mm Hg (p< .0001) and a significant increase in both cardiac output from 3.9 0.2 to 4.6 + 0.2 liters/min (p