Systolic anterior motion (SAM) of the mitral valve

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.

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Article information

rID: 71676
System: Cardiac
Tag: refs, cases
Synonyms or Alternate Spellings:
  • Systolic anterior motion of mitral leaflet
  • Systolic anterior motion (SAM) of mitral leaflet
  • Systolic anterior motion (SAM) of the anterior mitral leaflet
  • Systolic anterior motion of the mitral valve
  • Systolic anterior motion (SAM) of mitral valve
  • Systolic anterior motion (SAM) of the anterior leaflet of the mitral valve

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Cases and figures

  • Case 1: with hypertrophic cardiomyopathy and cor triatriatum
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  • Case 2: with hypertrophic cardiomyopathy
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  • Case 3: with asymmetric septal hypertrophic cardiomyopathy
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