title: [Papillary muscle rupture during subaortic membrane balloon dilatation].
abstract: A 37 year-old female patient underwent catheter-balloon dilation for discrete subaortic stenosis. During the procedure severe mitral regurgitation was produced requiring emergency surgery. Transesophageal and intraoperative findings were posteriormedial papillary muscle rupture. Retrospective viewing of the cineangiogram during balloon inflation revealed distal balloon indentation, corresponding to the injured papillary muscle. This severe complication of the left ventricular outflow tract angioplasty should be avoided by careful positioning of the guidewire and balloon before inflation.
authors.affiliation: Unidad Médico-Quirúrgica de Cardiología, Hospital La Paz., Madrid.
authors.forename: A
authors.initials: A
authors.lastname: Frutos
authors.forename: N
authors.initials: N
authors.lastname: Sobrino
authors.forename: P
authors.initials: P
authors.lastname: Gallego
authors.forename: L
authors.initials: L
authors.lastname: Calvo
authors.forename: A
authors.initials: A
authors.lastname: Aroca
authors.forename: J
authors.initials: J
authors.lastname: Centeno
authors.forename: J M
authors.initials: JM
authors.lastname: Mesa
authors.forename: J A
authors.initials: JA
authors.lastname: Sobrino
mesh_terms: D000328:Adult; D000800:Angioplasty, Balloon / Q000009:adverse effects*; D001024:Aortic Valve Stenosis / Q000628:therapy*; D005260:Female; D006801:Humans; D010210:Papillary Muscles / Q000293:injuries*; D012421:Rupture
vernacular_title: Rotura de músculo papilar durante la dilatación con balón de una membrana subaórtica.