A 12-lead electrocardiogram (ECG) is shown in Figure 1. The chest x-ray reveals a normal heart size. The ECG shows a systolic anterior motion of the mitral valve (SAM), mitral regurgitation, left ...

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. Read more about ...

There was a 3+ systolic anterior motion (SAM) of the mitral valve (see Supplementary Movie online), resulting in an eccentric jet of mild (1+) mitral regurgitation into a dilated left atrium ...