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[Congenital mitral stenosis. Experience in 1991-2001].
C Alva1, B González, C Meléndez
1Hospital de Cardiología, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social. alval@prodigy.net.mx
Archivos De Cardiologia De Mexico
|October 23, 2001
Summary
Congenital mitral stenosis in children requires surgical intervention, with most patients benefiting from mitral repair initially, though some may need valve replacement later. This study details ten years of experience with this rare condition.
Area of Science:
- Cardiology
- Pediatric Cardiology
- Cardiac Surgery
Background:
- Congenital mitral stenosis (CMS) is a rare but serious condition affecting pediatric patients.
- Understanding the long-term outcomes of surgical interventions for CMS is crucial for patient management.
Purpose of the Study:
- To present a decade of clinical experience with congenital mitral stenosis.
- To analyze the types of obstructions, hemodynamic profiles, and surgical outcomes in pediatric patients with CMS.
Main Methods:
- A retrospective analysis of all congenital mitral stenosis cases treated between 1991 and 2001.
- Evaluation of patient demographics, obstruction types, hemodynamic data, treatment strategies (medical, repair, replacement), and mortality.
Main Results:
- 16 pediatric patients with CMS were identified, with various obstruction types including mitral commissure fusion and parachute mitral valve.
- Surgical intervention included mitral repair in six patients and mitral valve replacement in four, with a global mortality of 12.5%.
- Significant reductions in mean transvalvar gradient were observed post-surgery for both mitral repair and valve replacement groups.
Conclusions:
- Congenital mitral stenosis often necessitates surgical repair, offering significant hemodynamic improvement.
- A substantial proportion of pediatric patients with CMS may require mitral valve replacement within a mid-term follow-up period.