2012年1月18日 · Systolic anterior motion (SAM) of the mitral valve (MV) can be a life-threatening condition. The SAM can result in severe left ventricular outflow tract obstruction and/or mitral regurgitation and is associated with an up to 20% risk of sudden death (which is substantially lower in hypertrophic cardiomyopathy (HCM)).

2018年1月16日 · This is systolic anterior motion (SAM) of the leaflet intermittently causing obstruction of the left ventricular outflow tract (LVOT). In general, for any degree of chronic mitral regurgitation leading to pulmonary hypertension, one must focus on the pulmonary vascular resistance (PVR), volume status, and right heart metrics.

Systolic anterior motion (SAM) is defined as displacement of the distal portion of the anterior leaflet of the mitral valve toward the left ventricular outflow tract obstruction. SAM can occur in patients without hypertrophic cardiomyopathy (HOCM) ...

2022年5月5日 · Left ventricular outflow tract obstruction (LVOTO) is commonly associated with systolic anterior motion (SAM) of the mitral valve. Congenital heart disease is an important cause in the paediatric population.

2021年11月15日 · LVOTO is caused by fast-flowing blood through the LV outflow tract which pulls the mitral valve anteriorly (towards the LV outflow tract) due to a Venturi effect. This is known as systolic anterior motion (SAM) of the mitral valve.

Systolic anterior motion (SAM) of the mitral valve is a well-known phenomenon associated with left ventricular outflow tract obstruction and hemodynamic compromise. This finding may occur in patients with or without hypertrophic cardiomyopathy.

Systolic anterior motion (SAM) is defined as the displacement of the anterior mitral leaflet towards the left ventricular outflow tract, which results in left ventricular outflow tract obstruction (LVOTO).

2021年4月18日 · Systolic anterior motion (SAM) of the mitral valve is defined as displacement of the distal portion of the anterior leaflet of the mitral valve toward the left ventricular outflow tract obstruction. It can occur in patients with and without hypertrophic cardiomyopathy.

2016年1月8日 · The systolic anterior motion of the mitral valve (SAM) was initially considered a typical feature of hypertrophic cardiomyopathy (HCM) with left ventricular outflow tract (LVOT) obstruction . SAM was also found to occur among patients without the echocardiographic features of HCM [3–19] .

Systolic anterior motion (SAM) of the mitral valve was first reported as a feature of hypertrophic cardiomyopathy (HCM) in the late 1960s.