Severity scoring system for ventricular septal defect

Area of Science:

• Cardiology
• Pediatric Cardiac Surgery
• Congenital Heart Disease Management

Background:

• Residual ventricular septal defect (RVSD) is a common complication after congenital VSD repair.
• Current re-intervention guidelines rely on symptoms or separate diagnostic tests.
• A novel scoring system integrates multiple criteria for RVSD assessment.

Discussion:

• The scoring system evaluates RVSD size, pulmonary-to-systemic flow ratio (Qp:Qs), right-to-left ventricular pressure ratio, and heart failure symptoms.
• Scores are assigned based on severity within each category (mild, intermediate, severe).
• Intra-operative and post-operative scores are calculated differently to reflect distinct clinical contexts.

Key Insights:

• Severe RVSD, and moderate VSD post-Tetralogy of Fallot repair, necessitate immediate re-closure.
• Mild to moderate RVSD cases require close follow-up with transesophageal echocardiography (TEE).
• The system categorizes RVSD severity as mild, moderate, or severe based on total scores.

Outlook:

• The proposed scoring system offers a comprehensive approach to RVSD management.
• Further prospective studies are needed to validate its clinical utility and impact on decision-making.
• This tool aims to standardize the evaluation and treatment of residual VSDs.