This is called “systolic anterior motion” of the mitral valve or SAM. Mitral regurgitation can result and contribute to congestive heart failure symptoms in the setting of HOCM.

lessening the systolic anterior motion of the mitral valve and mitral regurgitation. (Figure 2 shows a schematic representation of the differing effects of alcohol septal ablation and myectomy.) ...

The asymmetric increase in wall thickness can lead to dynamic LV outflow tract obstruction and systolic anterior motion of the mitral valve. There is an increased incidence of diastolic ...

The diagnosis of HCM was excluded by echocardiography in 819 (98%) on the basis of an LV wall thickness <12 mm, absence of systolic anterior motion of the anterior mitral valve leaflet causing LV ...