A model to simulate the haemodynamic effects of right heart pulsatile flow after modified Fontan procedure.

摘要: The effect of pulsatile pulmonary flow after the modified Fontan procedure was examined in a model that simulated right heart. An inlet overflow tank (preload), axial pump, Wind-Kessel (afterload), and an outlet were connected series. standard conditions 2.00 l/min with 12 mm Hg preload pressure, 3.0 Wood units resistance, pressure at 6 Hg. pump rate set 80 beats/min. arterial waves produced by this closely resembled those obtained from patients who had undergone procedure. All variables except fixed changes pressures 8, 12, 15, 17 As peak increased so did flow, until it greater than during non-pulsatile state. Because afterload fixed, result suggests there concomitant decrease resistance. This indicates blood is likely to have beneficial on circulation