Key result
Computational modeling of Norwood surgical anatomy demonstrated that a smaller shunt diameter with a distal anastomosis optimizes systemic oxygen delivery, while a proximal anastomosis optimizes coronary delivery.
Why the study?
Does varying shunt geometry (diameter, anastomosis location, and angles) improve systemic and coronary oxygen delivery in a computational model of the Norwood surgery?
Population
Computational multidomain model of the Norwood surgical anatomy
Design
Preclinical
Authors
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May inform shunt selection to balance perfusion in Norwood surgery; hypothesis-generating and requires clinical validation before practice change.
Does varying shunt geometry (diameter, anastomosis location, and angles) improve systemic and coronary oxygen delivery in a computational model of the Norwood surgery?
Computational modeling demonstrates that shunt position and diameter during Norwood surgery can be optimized to balance systemic and coronary oxygen delivery.
Esmaily et al. (2012) studied Norwood surgery / systemic-to-pulmonary shunt anatomy. Shunt geometry optimization (diameter, anastomosis location, angles) was evaluated on Systemic, coronary, and combined oxygen deliveries. Computational modeling of Norwood surgical anatomy demonstrated that a smaller shunt diameter with a distal anastomosis optimizes systemic oxygen delivery, while a proximal anastomosis optimizes coronary delivery.