Fig. 2

Hemodynamic parameters for rats that survived to 60 min. CPP (a), MAP (b), HR (c), and RPP (d) versus time for these survival rats during the 60-min observation period are shown. The data are presented as means and SD. Significant differences are demonstrated in the values of CPP, MAP, HR, and RPP among the EL, E, and L groups (P < 0.05). On considering the importance of the early phase for successful resuscitation, further comparisons in the first 3 min were performed. CPP and MAP, but not RPP or HR in the EL group was higher than that of the E or L group within the first 3 min (P < 0.05).n = 10 for the EL group, n = 4 for the E group, n = 2 for the L group. CPP = coronary perfusion pressure; MAP = mean arterial pressure; HR = heart rate. RPP = rate-pressure product(systolic blood pressure × heart rate)