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Left ventricular outflow obstruction by a mitral valve prosthesis: Doppler ultrasound and cardiac catheterization
T J Byrnes1, W R Guillory, H G Hanley
1School of Medicine, Louisiana State University Medical Center, Department of Medicine, Shreveport 71130-3932.
Catheterization and Cardiovascular Diagnosis
|May 1, 1989
Insights
Left ventricular outflow tract obstruction from a mitral valve prosthesis caused congestive heart failure years after surgery. Diagnosis utilized echocardiography, Doppler, and heart catheterization.
Area of Science:
- Cardiology
- Biomedical Engineering
Background:
- Mitral valve prostheses are implanted to restore heart function.
- Long-term complications can arise years after prosthetic valve implantation.
Observation:
- A patient presented with symptoms of congestive heart failure.
- Imaging revealed obstruction in the left ventricular outflow tract due to the mitral valve prosthesis.
Findings:
- Two-dimensional echocardiography and Doppler techniques diagnosed the obstruction.
- Heart catheterization with micromanometer-tipped catheters confirmed the diagnosis.
Implications:
- This case highlights a rare but serious complication of mitral valve prostheses.
- Early diagnosis and intervention are crucial for managing prosthetic valve dysfunction.
Abstract:
Left ventricular outflow tract obstruction by a mitral valve prosthesis was noted several years following surgery when symptoms of congestive heart failure occurred. The diagnosis was made using two-dimensional echocardiography and Doppler techniques and confirmed at heart catheterization, using micromanometer tipped catheters.