Fig. 2

Pulsatility Index during on IABP (left) and off IABP (right). PI on IABP was significantly higher than that during off IABP (p < .001)
Pulsatility Index during on IABP (left) and off IABP (right). PI on IABP was significantly higher than that during off IABP (p < .001)