Anatomic correction of atrioventricular discordance

Area of Science:

• Cardiology
• Pediatric Cardiac Surgery
• Congenital Heart Disease

Background:

• Atrioventricular discordance presents complex congenital heart defects requiring surgical intervention.
• Early diagnosis and appropriate surgical strategies are crucial for improving outcomes in affected children.

Purpose of the Study:

• To evaluate the efficacy and outcomes of anatomic correction in pediatric patients with atrioventricular discordance.
• To identify patient populations that would benefit most from this surgical approach.

Main Methods:

• Retrospective analysis of 11 patients (ages 1-11 years) who underwent anatomic correction between 1989 and 1991.
• Procedures included Senning/Mustard atriopulmonary connections combined with Rastelli or arterial switch operations.
• Associated defects like ventricular septal defect, pulmonary stenosis, and valve regurgitation were addressed concurrently.

Main Results:

• One surgical death occurred; the remaining 10 patients had satisfactory postoperative courses with a mean follow-up of 12.6 months.
• No kinking or torsion of coronary arteries was observed in patients undergoing the arterial switch operation.
• All patients had associated congenital heart defects, most commonly ventricular septal defect and pulmonary stenosis/atresia.

Conclusions:

• Anatomic correction for atrioventricular discordance is a viable and recommended surgical strategy.
• The procedure is particularly indicated for patients exhibiting signs of systemic right ventricular dysfunction.
• This approach offers satisfactory long-term outcomes for selected pediatric patients.