Experimental And Clinical Studies Of Severe Complex Congenital Heart Disease With Decreased Pulmonary Blood Flow

1. Comparison of atrioventricular and total cavopulmonary connections versus atriopulmonary anastomosis for repair of tricuspid atresia in dogsObjective: To compare the hemodynamic effect and energy loss in atrioventricular and total cavopulmonary connections versus atriopulmonary anastomosis for modified Fontan procedures in dogs. Methods: Fifteen adult mongrel dogs were divided into three groups, Group I right atrium to right ventricle (using 50% and 25% right ventricular chamber, respectively) connection with valved pulmonary homograft flap (modified Bjoerk procedure); Group II total cavopulmonary connection; Group III atriopulmonary anastomosis. Right atrium pressures pulmonary artery pressures and cardiac outputs were measured by Swan-Ganz catheters. The flows of right pulmonary artery, left pulmonary artery, superior vena cava and inferior vena cava were measured by electromagnetic flowmeter. The flow velocity of right pulmonary artery, left pulmonary artery, superior vena cava and inferior vena cava were measured by echocardiogram. The fluid energy loss was calculated by Bernoulli's...