Related Experiment Videos
Aortoventriculoplasty and left ventricle function: long-term follow-up
Girish K Sharma1, Michał Wojtalik, Aldona Siwińska
1Department of Pediatric Cardiac Surgery, University of Medical Science, ul. Szpitalna 27/33, 60-572 Poznań, Poland. girish@poczta.onet.pl
Summary
Septal incision in pediatric aortic valve replacement may have temporary effects on left ventricle function but shows no permanent damage long-term. This study tracked systolic and diastolic function after surgery in two patient groups.
Area of Science:
- Cardiology
- Pediatric Cardiac Surgery
- Echocardiography
Background:
- Postoperative depressed cardiac function is common after aortoventriculoplasty.
- Limited data exist on the long-term effects of these procedures on left ventricle function.
Purpose of the Study:
- To evaluate the long-term impact of septal incision on left ventricle function in pediatric patients undergoing aortic valve replacement.
- To compare outcomes between simple aortic valve replacement and the Konno procedure.
Main Methods:
- Echocardiography was used to assess systolic and diastolic left ventricle function in 45 pediatric patients (ages 4-20).
- Patients were divided into two groups: simple aortic valve replacement (Group A, n=26) and Konno procedure (Group B, n=19).
- Key parameters included pressure gradients, ejection fraction, and diastolic filling characteristics.
Main Results:
- Both groups showed improved systolic function post-surgery.
- Group B (Konno procedure) demonstrated a better aortic valve index (AOVI%) and lower residual pressure gradients compared to Group A.
- No significant differences in diastolic function were observed between the groups.
Conclusions:
- Septal incision may cause transient postoperative effects on left ventricle function.
- No permanent sequelae on left ventricle function were observed in the long-term follow-up for either surgical approach.
- Sustained aortic valve function is crucial for preventing long-term pressure gradients.