Pediatric Mitral Valve Surgery Outcomes
Summary
Mitral valve surgery in paediatric patients is a critical intervention for congenital or acquired mitral valve disease. The two principal pathologies—regurgitation and stenosis—present distinct surgical challenges. Valve repair is preferred over replacement wherever feasible to accommodate somatic growth and reduce the need for lifelong anticoagulation. However, dysplastic valves or complex lesions often necessitate prosthetic replacement. Overall survival has improved markedly over recent decades, with early mortality rates below 10% in specialised centres. Freedom from reoperation varies by age at surgery, valve pathology, and prosthesis selection, with reoperation rates ranging from 20% to 60% at ten-year follow-up. Contemporary practice emphasises tailored surgical techniques, perioperative risk stratification and longitudinal echocardiographic surveillance to optimise long-term outcomes and quality of life in this vulnerable population.
Research from Nature Portfolio
Recent studies have evaluated the outcomes of mitral valve replacement in very young children, identifying key determinants of mid-term success. Data from a multi-centred observational series of children under five years demonstrated that overall morbidity and mortality were low. Crucially, valve size relative to body weight and the use of supra-annular implantation were significant predictors of reoperation risk, whereas patient age per se was not. These findings underscore the importance of prosthesis selection and surgical strategy in minimising repeat interventions and enhancing durable valve function in early childhood.
Pediatric Mitral Valve Surgery Outcomes publication trend
The graph below shows the total number of articles in pediatric mitral valve surgery outcomes across all publications each year (not limited to Nature Index journals).
Technical terms
Mitral regurgitation: Backward flow of blood from the left ventricle into the left atrium due to valve leaflet insufficiency.
Mitral stenosis: Narrowing of the mitral valve orifice, impeding blood flow from the left atrium to the left ventricle.
Valve repair: Surgical techniques to restore native valve anatomy and function, avoiding prosthetic implantation.
Valve replacement: Substitution of the diseased mitral valve with a mechanical or bioprosthetic device.
Supra-annular position: Placement of a prosthetic valve above the native annulus to accommodate small annular dimensions.
Chordae tendineae: Fibrous strands connecting the mitral valve leaflets to the papillary muscles, crucial for valve competence.
References
- Mitral valve replacement in infants and younger children. Scientific Reports (2021).
- The Fate of Mitral Valve Surgery in the Pediatric Age: A 25-Year Single-Center Experience. Journal of Clinical Medicine (2024).
- Long-term outcomes of mitral valve repair in children. Frontiers in Cardiovascular Medicine (2024).
- Mechanical mitral valve endurance in children under 2 years. The Cardiothoracic Surgeon (2024).
About these summaries
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