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[Congenital mitral insufficiency. Diagnosis, prognosis and treatment]
Y Ben Ameur1, N Ben Ameur, H Drissa
1Service de Cardiologie Pédiatrique, Hôpital la Rabta, Tunis.
Insights
Conservative mitral surgery, including reconstructive mitral valvuloplasty, offers superior outcomes and fewer complications compared to mechanical mitral valve replacement in pediatric patients. This approach should be prioritized for children requiring open-heart surgery for congenital mitral insufficiency.
Area of Science:
- Cardiovascular Surgery
- Pediatric Cardiology
- Biomedical Engineering
Context:
- Congenital mitral insufficiency (CMI) in children necessitates surgical intervention.
- Surgical options include reconstructive mitral valvuloplasty and mitral valve replacement.
- Long-term outcomes and complication rates of these procedures in pediatric populations require careful evaluation.
Purpose:
- To compare the outcomes and complication rates of reconstructive mitral valvuloplasty versus mitral valve replacement in pediatric patients with CMI.
- To determine the preferred first-line surgical approach for CMI in children.
Summary:
- A retrospective study analyzed 30 children with CMI undergoing open-heart surgery between 1973 and 1993.
- Reconstructive mitral valvuloplasty (20 patients) showed better results with fewer complications than mitral valve replacement (10 patients).
- Mitral valve replacement had a higher mortality rate (40%) due to prosthesis-related complications.
Impact:
- Conservative mitral surgery, specifically reconstructive valvuloplasty, demonstrates superior efficacy and safety over mechanical prostheses in pediatric CMI.
- Findings support the recommendation for attempting reconstructive mitral surgery as the primary treatment modality for pediatric CMI.
- This evidence guides clinical decision-making towards less invasive, more durable surgical solutions for children with congenital mitral valve disease.
Abstract:
Between September 1973 and November 1993, 30 children with CMI underwent open-heart surgery. The mean age at operation was 6.63 years with a range of 8 months to 14 years. Twenty patients underwent reconstructive mitral valvuloplasty; 3 immediate failures and 1 case of stenosis of Carpentier's ring, occurring 7 years after the operation, were observed in this group. Among the 10 patients treated by mitral valve replacement, there were 4 deaths, including 3 from specific complications of the prosthesis. Conservative mitral surgery provides better results with far fewer complications that mechanical prostheses and must therefore always be attempted as the first-line procedure.