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Subaortic Membrane With Mitral Chordae Rupture Mimicking Left Ventricular Outflow Tract Obstruction in Hypertrophic

Mohamad Omar Choukair1, Ahmad Halawi2, Amal Nehmeh1

  • 1Department of Cardiovascular Medicine, Lebanese University Faculty of Medical Sciences, Beirut, LBN.

Cureus
|January 17, 2022
PubMed

Insights

Hypertrophic cardiomyopathy (HCM) and subaortic membrane (SAM) can cause similar symptoms. Differentiating these conditions is crucial for appropriate treatment and intervention, as highlighted in a case misdiagnosis.

Area of Science:

  • Cardiology
  • Medical Diagnostics

Background:

  • Hypertrophic cardiomyopathy (HCM) is an inherited condition causing left ventricular outflow tract (LVOT) obstruction.
  • Subaortic membrane (SAM) is a rare cause of LVOT obstruction, mimicking HCM symptoms like syncope and dyspnea.
  • Accurate differentiation between HCM and SAM is critical for guiding patient management and intervention strategies.

Keywords:
hypertrophic cardiomyopathyleft ventricular outflow tract obstructionmitral chordae rupturesub aortic membranette

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