This case highlights the rare clinical coexistence of membranous subaortic stenosis and hypertrophic cardiomyopathy, emphasizing the role of multimodality echocardiography in diagnosis.
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May warrant considering subaortic membrane in select LVH cases; leaves open prevalence and management of this rare overlap.
Subaortic stenosis (SAS) is a congenital heart disease, and its association with hypertrophic cardiomyopathy is very rare and clinically underappreciated. We report here a case of a 45-year-old female who was admitted to our hospital with chest tightness and shortness of breath. Both transthoracic and transesophageal echocardiography revealed asymmetric left ventricular hypertrophy and a membrane-like echo below the level of the aortic valve. This patient was diagnosed with membranous SAS with hypertrophic cardiomyopathy. Screening of her immediate family members revealed that her son also had hypertrophic cardiomyopathy. The patient chose conservative treatments and has been closely followed-up after discharge.
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Li et al. (2018) studied this question.
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