Flow studies on atriopulmonary and cavopulmonary connections of the Fontan operations for congenital heart defects

J Biomed Eng. 1993 Jul;15(4):303-7. doi: 10.1016/0141-5425(93)90006-k.


A comparative flow study has been conducted on two configurations of the Fontan operations for congenital heart defects in which the right ventricle is by-passed. The study was made on rigid in vitro models of the atriopulmonary and cavopulmonary connections under steady-flow conditions. It involved using pressure and flow measurements to determine the pressure-drop coefficient, pressure-energy-loss coefficient and total-energy-loss coefficient. The cavopulmonary model was found to have much lower flow losses compared to the atriopulmonary model, especially at flow rates about 5 l min-1.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anastomosis, Surgical
  • Blood Flow Velocity*
  • Blood Pressure
  • Heart Atria / surgery*
  • Heart Defects, Congenital / physiopathology*
  • Heart Defects, Congenital / surgery*
  • Humans
  • Models, Cardiovascular
  • Models, Structural
  • Palliative Care
  • Pulmonary Artery / physiopathology
  • Pulmonary Artery / surgery*
  • Vena Cava, Inferior / physiopathology
  • Vena Cava, Superior / physiopathology
  • Vena Cava, Superior / surgery*