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Subneoaortic stenosis complicating the arterial switch operation.
Sylvie Bertrand1, Robert H Anderson, Marc R de Leval
1Paediatric Cardiac Surgery Department, The Harley Street Clinic, London, United Kingdom.
Cardiology in the Young
|November 22, 2005
Summary
An unusual complication of arterial switch operation, left ventricular outflow tract obstruction, was diagnosed 18 months post-surgery. This may stem from ventricular septal defect repair or changes in heart geometry.
Area of Science:
- Cardiovascular Surgery
- Pediatric Cardiology
- Congenital Heart Disease
Background:
- Arterial switch operation is a standard procedure for d-transposition of the great arteries.
- Ventricular septal defects are often repaired concurrently during complex congenital heart surgeries.
Observation:
- A case of left ventricular outflow tract obstruction is reported 18 months after arterial switch operation with ventricular septal defect closure.
- The obstruction affected the reconstructed outflow tract.
Findings:
- The obstruction was diagnosed significantly later than the initial surgery.
- Potential causes include turbulent flow from the ventricular septal defect patch or altered ventricular geometry post-surgery.
Implications:
- Highlights the importance of long-term monitoring for late complications after arterial switch operation.
- Suggests further investigation into the biomechanical effects of ventricular septal defect repair on left ventricular outflow tract.