title: Dynamic Left Ventricular Outflow Tract Obstruction During Myocardial Ischemia in Mitral Valve Prolapse Syndrome.
abstract: Systolic anterior motion of the mitral valve (MV) with dynamic left ventricular (LV) outflow tract obstruction is a well known phenomenon in hypertrophic cardiomyopathy, or other forms of hyperdynamic LV function associated with hypovolemic states, or LV hypertrophy. We report three patients with MV prolapse in the absence of the above predisposing factors, who developed an LV outflow dynamic gradient during acute transient myocardial ischemia. An interaction between structural abnormalities of the mitral apparatus and ischemia-dependent LV shape deformity most likely accounted for the outflow gradient.
authors.affiliation: Divsione di Cardiologia, Ospedale P. Cosma, 35012 Camposampiero (PD), Italy.
authors.forename: Fabio
authors.initials: F
authors.lastname: De Conti
authors.forename: Piergiuseppe
authors.initials: P
authors.lastname: Piovesana
authors.forename: Gianluigi
authors.initials: G
authors.lastname: Nicolosi
authors.forename: Nicolò
authors.initials: N
authors.lastname: Lafisca
authors.forename: Enzo
authors.initials: E
authors.lastname: Mantovani
authors.forename: Pietro
authors.initials: P
authors.lastname: Viena
authors.forename: Attilio
authors.initials: A
authors.lastname: Pantaleoni