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Subaortic Membrane Co-existing With Hypertrophic Cardiomyopathy: A Clinically Challenging Diagnosis
Mehr Un Nisa Farhan1, Hamza Akhtar2, Hussein Al Sudani3
1Internal Medicine, Shaikh Khalifa Bin Zayed Al-Nahyan Medical and Dental College, Lahore, PAK.
Cureus
|October 31, 2022
Summary
This report details a rare case of subaortic membrane coexisting with hypertrophic obstructive cardiomyopathy (HOCM). This combination caused significant left ventricular outflow tract obstruction in an 18-year-old male.
Area of Science:
- Cardiology
- Medical Diagnostics
- Rare Disease Research
Background:
- Subaortic membrane is a common cause of subaortic stenosis.
- Hypertrophic obstructive cardiomyopathy (HOCM) is a distinct cardiac condition.
- The co-occurrence of these two conditions is exceptionally rare and often underdiagnosed.
Observation:
- An 18-year-old male presented with chest pain and dyspnea.
- The patient exhibited symptoms attributed to both fixed and dynamic left ventricular outflow tract (LVOT) obstruction.
- Diagnostic evaluation revealed the presence of a subaortic membrane and HOCM.
Findings:
- The patient had a fixed obstruction due to a subaortic membrane.
- The patient also had dynamic obstruction caused by HOCM.
- Combined LVOT obstruction from both pathologies led to significant clinical symptoms.
Implications:
- This case highlights the importance of considering rare combined pathologies in diagnosing LVOT obstruction.
- Accurate diagnosis is crucial for appropriate management of patients with complex cardiac conditions.
- Further research may elucidate the pathophysiology and optimal treatment strategies for this rare combination.
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