Combined subaortic membrane and aortic valve stenosis: Additive value of three-dimensional echocardiography

摘要

A 75-year-old woman was referred to our hospital for further assessment of undefined transaortic high-pressure gradient obtained by transthoracic echocardiography. Transoesophageal echocardiog-raphy revealed the presence of a subaortic membrane co-existing with aortic valve stenosis (Panel A, see Supplementary data online, Video S1). Colour flow and continuous-wave Doppler echocardiography (Panels 8 and C) demonstrated an increased aortic jet velocity of 5.7 m/s. Pulsed wave Doppler recording of the outflow area showed a mosaic pattern indicative of high subaortic flow velocities. Live three-dimensional echocardiography was performed, which improved the spatial assessment of the subaortic membrane (Panel D, see Supplementary data online, Video S2), including direct en face visualization from the left ventricular cavity (Panel E, see Supplementary data online, Video S3) and through a plane immediately below the aortic valve (Panel F, see Supplementary data online, Video S4).