Table 1. Physiologic Variables at Baseline and 6 h after Resuscitation

Aortic flush at the start of the arrest was in group I with 25 ml/kg saline at 4°C (n = 6) and in group II with 100 ml/kg saline at 4°C (n = 7). Data are given as median and interquartile range.

* This high 75th-percentile arterial oxygen tension (Pao²) value, above the expected value for a fractional inspired oxygen tension (Fio²) of 0.5, was caused by measuring the value for one dog by error under an Fio²of 1.0. †P < 0.05 comparing group I versus  group II.

ROSC = restoration of spontaneous circulation; Paco²= arterial carbon dioxide tension.