Integrating Novel Physiologic Data into Decision-Making in Congenital Heart Surgery

Area of Science:

• Cardiology
• Medical Imaging
• Pediatric Surgery

Background:

• Congenital heart disease (CHD) management relies on accurate anatomical and physiological assessment.
• Cardiac magnetic resonance (CMR) offers advanced imaging capabilities for CHD evaluation.
• Quantitative flow data from CMR is crucial for surgical planning.

Purpose of the Study:

• To review the application of CMR-derived flow data in surgical decision-making for specific CHD subgroups.
• To emphasize the role of quantitative flow analysis in optimizing surgical timing and type.

Main Methods:

• Review of existing literature on CMR applications in CHD.
• Focus on phase-contrast CMR for quantitative flow measurements.
• Analysis of CMR data in three distinct patient cohorts: borderline left ventricle, single ventricle with bidirectional cavopulmonary shunt, and pulmonary atresia with major aortopulmonary collateral arteries.

Main Results:

• CMR enables precise measurement of cardiac output, shunts, and valve regurgitation.
• Ascending aortic flow is critical for borderline left ventricle assessment.
• Superior vena cava flow impacts postoperative physiology in single ventricle patients.
• Total pulmonary blood flow and systemic-to-pulmonary ratio influence outcomes in pulmonary atresia.

Conclusions:

• CMR-derived flow data significantly enhances surgical decision-making in complex CHD.
• Quantitative physiological assessment via CMR improves patient outcomes.
• This review provides a framework for utilizing CMR flow data in pediatric cardiac surgery.