Related Experiment Video
Updated: Apr 17, 2026

Fully Endoscopic Mitral Valve Repair with Percutaneous Cannulation of Groin Vessels
Published on: May 26, 2023
Repeat mitral valve repair for haemolysis in children
Olivia Weill1, Marianne Peyre1, Mathieu Vergnat2
1Toulouse University Hospital, M3C, Paediatric Cardiology Unit, Toulouse, France.
Severe hemolytic anemia is a rare complication following mitral valve repair in children with congenital heart disease. Redo mitral valve repair successfully resolved hemolysis in all cases, demonstrating iterative repair is feasible.
Area of Science:
- Cardiology
- Pediatric Surgery
- Hematology
Background:
- Severe hemolytic anemia is an infrequent complication after mitral valve repair in pediatric congenital heart disease.
- This study focuses on four children who developed profound hemolytic anemia post-mitral valve repair for severe mitral regurgitation.
Purpose of the Study:
- To describe the occurrence and management of severe hemolytic anemia after mitral valve repair in children with congenital heart disease.
- To highlight the successful outcome of redo mitral valve repair in resolving hemolysis.
Main Methods:
- Retrospective analysis of clinical, echocardiographic, and surgical data from a French surgical center over a 5-year period.
- Inclusion of four pediatric patients who underwent mitral valve repair and subsequently developed severe hemolytic anemia.
Main Results:
- Patients presented with hemolytic anemia 20-75 days post-surgery, requiring blood transfusions.
- Hemolysis was consistently associated with eccentric mitral regurgitation and deemed mechanical in origin.
- All patients underwent successful redo mitral valve repair, leading to the resolution of hemolysis.
Conclusions:
- Severe hemolysis is a rare but significant complication of mitral valve repair in congenital heart disease.
- Redo mitral valve repair is an effective treatment for mechanical hemolysis secondary to mitral regurgitation.
- Iterative mitral valve repair is a viable option even when redo surgery is necessary.
Related Concept Videos
Mitral Stenosis III: Medical Management
Mitral Regurgitation III: Medical Management
Mitral Stenosis I: Introduction
Mitral Regurgitation I: Introduction
Mitral Regurgitation IV: Nursing Management
Mitral Valve Prolapse I: Introduction

