Systolic anterior motion (SAM) of the posterior mitral leaflet: left ventricular outflow tract obstruction in a patient without left ventricular hypertrophy.
Systolic anterior motion (SAM) of the anterior mitral leaflet with mitral-septal contact was generally thought to be a major contributor to dynamic left ventricular outflow tract obstruction in patients with hypertrophic cardiomyopathy. We report an interesting case of SAM of the posterior mitral leaflet in a patient without left ventricular hypertrophy, which led to dynamic left ventricular obstruction.
Doi
Tetsuya
T
Ayukawa
Hiroyuki
H
Hoshiyama
Yoshiaki
Y
Hatakeyama
Yuko
Y
Sasaki
Yoshio
Y
Inenaga
Katsura
K
Hwang
Myung-Woo
MW
Takeoka
Rei
R
Iwase
Tomoyuki
T
Kawai
Chuichi
C
D000368:Aged; D002312:Cardiomyopathy, Hypertrophic / Q000503:physiopathology / Q000601:surgery; D017115:Catheter Ablation; D015150:Echocardiography, Doppler; D017548:Echocardiography, Transesophageal; D005260:Female; D006801:Humans; D017379:Hypertrophy, Left Ventricular / Q000503:physiopathology* / Q000601:surgery; D008943:Mitral Valve / Q000503:physiopathology* / Q000601:surgery; D010138:Pacemaker, Artificial; D013318:Stroke Volume; D013599:Systole; D014694:Ventricular Outflow Obstruction / Q000503:physiopathology* / Q000601:surgery