Related Experiment Videos
Mitral valvar anomalies and discrete subaortic stenosis
Laurence Cohen1, Raja Bennani, Sylvie Hulin
1Institut Cardiologique Paris Sud, Massy, France. icip@icip.org
Cardiology in the Young
|May 23, 2002
Summary
Mitral valve anomalies are often linked to discrete subaortic stenosis. This study found nearly half of patients had these anomalies, suggesting they should be routinely screened for during evaluation.
Area of Science:
- Cardiovascular Surgery
- Pediatric Cardiology
- Congenital Heart Disease
Background:
- Discrete subaortic stenosis (DSS) is a significant cause of left ventricular outflow tract obstruction.
- The association between mitral valve anomalies and DSS is not fully understood.
- Clinical experience suggests a potential underestimation of mitral valve involvement in DSS.
Purpose of the Study:
- To investigate the prevalence and types of mitral valve anomalies in patients with discrete subaortic stenosis.
- To assess the feasibility and impact of surgical correction of associated mitral valve anomalies.
- To determine if addressing mitral valve anomalies improves outcomes for DSS patients.
Main Methods:
- Echocardiographic evaluation of mitral valve anatomy in 73 consecutive DSS patients undergoing surgical correction.
- Classification of identified mitral valve anomalies.
- Surgical correction of both subaortic stenosis and associated mitral valve anomalies when indicated.
Main Results:
- Mitral valve anomalies were identified in 35 patients (48%).
- Common anomalies included papillary muscle insertion into aortic leaflet, accessory valvar tissue, and anomalous leaflet insertion.
- Surgical correction of mitral valve anomalies was feasible and performed in conjunction with DSS resection.
Conclusions:
- The incidence of mitral valve anomalies in DSS is likely underestimated.
- Systematic screening for mitral valve anomalies is recommended in all DSS evaluations.
- Surgical correction of mitral valve anomalies may improve mid- and long-term outcomes for DSS patients.