Simulation guided heart surgery planning for complex ventricle repair
From Simulation to Suture Lines: Computational Fluid Dynamic Simulation-Guided Baffle Construction for Complex Biventricular Repair
Computational Engineering, Finance, and Science
Summary
Repairing certain complex heart defects in children is difficult because the surgeon must reshape the heart’s internal paths without damaging valves. The authors used computer simulations to design a more efficient and safer pathway for blood flow during surgery. Their method combines 3D modeling with fluid dynamics to find the best shape for the repair. This helps surgeons plan the operation before they actually do it.
What this means in practice
- •For cardiac surgeons: Plan complex heart repairs with optimized internal pathways using CFD to maintain valve function and blood flow.
- •For medical device engineers: Design surgical planning tools that incorporate CFD for better anatomical and functional repair visualizations.
Authors
Alexander K. Reed, Elena Sabdy Martinez, Alexander D. Kaiser, Amit Sharir, Caio Carcaioli Bonin, Perry S. Choi, Shiraz A. Maskatia, Alison L. Marsden, Michael R. Ma
Abstract
Biventricular repair is favored for children with complex double-outlet right ventricle (DORV) to eliminate the long-term morbidity of single ventricle physiology. However, creating a baffle that maintains adequate cross-sectional area while limiting incursion on the tricuspid valve apparatus is challenging in a distorted, arrested heart. Three-dimensional (3D) models have aided baffle design with anatomic visualization but analytic approaches, including computational fluid dynamic (CFD) simulation support, have not yet been incorporated into clinical workflows. We present the preoperative, prospective construction of a DORV repair baffle guided by a semi-automated area-preserving algorithm and CFD analysis.