[Left ventricular outflow obstruction due to accessory mitral tissue].
An asymptomatic 31-year-old woman was studied because she presented a systolic ejection cardiac murmur. The echocardiogram showed a mobile, sac-like mass attached to the ventricular surface of the anterior mitral leaflet and its chordae tendineae and papillary muscle. This structure moved to the left ventricular outflow tract during every systole occupying the subaortic area. Conventional and color-coded Doppler examination revealed left ventricular outflow obstruction caused by the accessory mitral valve tissue that produced a high-velocity turbulent flow pattern in the subaortic area where the sac-like structure approximated to the outflow tract walls.
Chorro
F J
FJ
Servicio de Cardiología, Hospital Clínico Universitario, Valencia.
Losada
A
A
Muñoz
J
J
Cortina
J
J
Monmeneu
J V
JV
Ibáñez
M
M
Martínez Mas
M L
ML
López Merino
V
V
D000328:Adult; D002312:Cardiomyopathy, Hypertrophic / Q000150:complications / Q000000981:diagnostic imaging; D015150:Echocardiography, Doppler; D005260:Female; D006801:Humans; D008943:Mitral Valve / Q000002:abnormalities* / Q000000981:diagnostic imaging; D014694:Ventricular Outflow Obstruction / Q000000981:diagnostic imaging / Q000209:etiology*
Obstrucción a la eyección ventricular izquierda causada por tejido mitral accesorio.