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Updated: Aug 11, 2026
07:11
Morphological and Functional Assessment of the Right Ventricle Using 3D Echocardiography
Published on: October 28, 2020
Left ventricular outflow tract obstruction caused by accessory mitral valve tissue
Rajan Sharma1, John Smith, Perry M Elliott
1Department of Cardiology, St Georges Hospital, London, United Kingdom. rajdoc.Sharma@tiscali.co.uk
Summary
Accessory mitral valve tissue can obstruct blood flow, causing symptoms. Echocardiography diagnosed this rare condition, and surgery resolved the obstruction and symptoms.
Area of Science:
- Cardiology
- Medical Imaging
- Surgical Innovation
Background:
- Left ventricular outflow tract (LVOT) obstruction is a critical condition.
- Accessory mitral valve tissue is a rare cause of subaortic obstruction.
- Accurate diagnosis is essential for effective treatment.
Observation:
- A symptomatic man presented with left ventricular outflow tract obstruction.
- Echocardiography revealed accessory mitral valve tissue as the cause.
- Transthoracic and transesophageal echocardiography were crucial for diagnosis.
Findings:
- Surgical removal of accessory mitral valve tissue was performed.
- Mitral valve replacement was necessary.
- Complete resolution of the LVOT gradient and symptoms was achieved post-surgery.
Implications:
- This case highlights echocardiography's role in diagnosing rare subaortic obstructions.
- Early and accurate diagnosis leads to successful surgical outcomes.
- Accessory mitral valve tissue is a treatable cause of LVOT obstruction.
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