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Updated: Jul 12, 2026
11:13
Porcine Model of Infrarenal Abdominal Aortic Aneurysm
Published on: November 21, 2019
Aortic elongation induced aortic stenosis (AEAS).
Amit K Shah1, Roger M O Hall, Stephen R Large
1Papworth Hospital NHS Foundation Trust, Papworth Everard, Cambridge, United Kingdom.
The Annals of Thoracic Surgery
|August 28, 2007
Summary
A rare case of aortic stenosis was identified as pseudo-obstruction caused by mitral valve subvalvular tissue impacting a normal aortic valve. This highlights the importance of considering subvalvular stenosis in left ventricular outflow obstruction.
Area of Science:
- Cardiology
- Cardiac Surgery
- Medical Case Reports
Background:
- Left ventricular outflow tract (LVOT) obstruction is a critical condition.
- Aortic stenosis is a common cause of LVOT obstruction.
- Subvalvular stenosis, though less common, can mimic other forms of obstruction.
Observation:
- A 71-year-old male presented with symptoms suggestive of aortic stenosis.
- Cardiac imaging revealed a normal aortic valve.
- The obstruction was found to originate from the mitral valve subvalvular apparatus.
Findings:
- The patient's condition was diagnosed as pseudo-aortic obstruction.
- Elongation of the ascending aorta contributed to the abnormal mitral valve positioning.
- The mitral valve subvalvular apparatus impinged upon the normal aortic valve, causing obstruction.
Implications:
- This case underscores the necessity of a comprehensive differential diagnosis for LVOT obstruction.
- Accurate identification of the obstruction's source is crucial for appropriate management.
- Understanding subvalvular mechanisms is vital for surgical and interventional planning.
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