to characterize the exercise hemodynamic responses after definitive operation for patients with univentricular atrioventricular connection , we compared the cardiorespiratory response to exercise of 4 patients who had undergone the ventricular septation procedure and 9 patients who had undergone the fontan operation with that of 38 patients who had univentricular atrioventricular connection but had not undergone definitive operation .
C0184661
procedure
C0543467
operation