Related Experiment Videos
[Reconstruction of atrioventricular valves in partial and total atrioventricular canal]
Insights
Surgical repair of partial (PCAVC) and common (CCAVC) atrioventricular canal defects yields excellent outcomes. Most survivors achieve excellent functional status, with low rates of reoperation and rare mitral valve replacement.
Area of Science:
- Cardiovascular Surgery
- Pediatric Cardiology
- Congenital Heart Disease
Context:
- Atrioventricular canal defects, including partial (PCAVC) and common (CCAVC) types, pose surgical challenges.
- Morphologic variations in CCAVC complicate atrioventricular valve reconstruction.
Purpose:
- To evaluate the surgical outcomes and long-term results of patients with partial and common atrioventricular canal defects.
Summary:
- 383 patients underwent surgery over 17 years.
- Early mortality rates are low (<1% for PCAVC, <5% for CCAVC).
- 90% of survivors are in NYHA class I, with mitral valve plastic reconstruction being the primary approach.
Impact:
- Low reoperation rates (7-10%) for mitral incompetence.
- Mitral valve replacement is infrequent (1.5%).
- Demonstrates the efficacy of current surgical strategies for AV canal defects.
Abstract:
Among the anomalies of endocardial cushion defects, the partial (PCAVC) and common (CCAVC) AV canal present a special challenge to the cardiac surgeon. In particular, reconstruction of the AV valve can be difficult in CCAVC because of morphologic variations. Within 17 years, 383 patients with this disease were operated on. Early mortality of PCAVC is below 1%, and of CCAVC below 5%. A total of 90% of the survivors are in NYHA class I. In general, plastic reconstruction of the mitral valve is performed. The risk of reoperation for recurrent mitral incompetence in both groups is between 7% and 10%. Mitral valve replacement is a rare event (1.5%).