Echocardiographic diagnosis of parachute mitral valve / 中华超声影像学杂志

ABSTRACT

Objective To explore the value of echocardiography in the diagnosis of the parachute mitral valve(PMV).Methods The echocardiographic characteristics of 12 patients with PMV between 2005 and 2012 were reviewed retrospectively,including the morphology,movement and blood flow of mitral valve apparatus,and other associated cardiac abnormalities.Results Of the mitral valve leaflets in these 12 cases,all were thickened and opened restricted in diastole.Axial view showed that in all cases mitral valves opened eccentrically and in 2 cases they didn't close tightly.Each patient only had single papillary muscle in left ventricle,which received all chords of mitral valves.Of papillary muscles in these patients,4 were located at posteromedial wall,3 at anterolateral wall,2 at middle posterior wall,2 at apical wall,and 1 at posterolateral wall.Of the 12 patients,only one were simple PMV,11 had associated cardiovascular anomalies,2 had mild regurgitation in systolic period and 11 had increased trans-valve peak flow velocity.Conclusions Echocardiography is reliable in the diagnosis of PMV,which could provide a comprehensive evaluation of valvular lesions and other associated cardiovascular anomalies.