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[Mitral valve replacement for congenital parachute mitral valve]
N Sasahashi1, F Ando, F Okamoto
1Department of Cardiovascular Surgery, Hyogo Kenritsu Amagasaki Hospital, Amagasaki, Japan.
[Zasshi] [Journal]. Nihon Kyobu Geka Gakkai
|July 1, 1995
Summary
A one-year-old boy with severe mitral stenosis and heart failure underwent successful mitral valve replacement. This intervention resolved his critical condition, showcasing effective surgical management for congenital heart defects.
Area of Science:
- Cardiology
- Pediatric Cardiology
- Congenital Heart Disease
Background:
- Congenital heart defects can lead to severe pediatric heart failure.
- Parachute mitral valve deformity is a rare cause of mitral stenosis in infants.
Observation:
- A one-year-old boy presented with refractory biventricular heart failure.
- Echocardiogram and cardiac catheterization revealed severe mitral stenosis due to parachute deformity and pulmonary hypertension.
- Surgical findings included a single mitral valve orifice, adhered chordae, a single papillary muscle, and an isolated muscle band.
Findings:
- Successful mitral valve replacement with a prosthetic valve was performed.
- Postoperative residual pulmonary hypertension responded to Imidarine infusion.
- The patient was discharged without sequelae on anticoagulation and vasodilator therapy.
Implications:
- Surgical correction of parachute mitral valve deformity is effective in treating pediatric heart failure.
- Management of residual pulmonary hypertension may require pharmacologic intervention.
- Long-term anticoagulation is crucial after prosthetic valve replacement in pediatric patients.