Effects of epinephrine and vasopressin on end-tidal carbon dioxide tension and mean arterial blood pressure in out-of-hospital cardiopulmonary resuscitation: an observational study

Table 3 End-tidal pressure of carbon dioxide and mean arterial blood pressure in two groups of cardiac arrest patients

Variables	Epinephrine group	Vasopressin group	p value^a
Median of pet_CO2 reading	16	15	0.86
Interquartile range	5–26	6–23
Average pet_CO2 (patients with ROSC)	2.12 ± 0.51	3.6 ± 0.86	< 0.01
Average pet_CO2 (patients without ROSC)	0.92 ± 0.28	1.78 ± 0.58	< 0.01
Initial pet_CO2 (patients with ROSC)	2.24 ± 0.81	2.13 ± 0.72	0.87
Initial pet_CO2 (patients without ROSC)	0.85 ± 0.64	1.05 ± 0.64	0.48
Final pet_CO2 (patients with ROSC)	2.95 ± 0.42	4.68 ± 1.1	< 0.01
Final pet_CO2 (patients without ROSC)	0.78 ± 0.52	0.88 ± 0.38	0.84
Average initial MAP	74.6 ± 11.3	92.4 ± 9.7	< 0.01
Average final MAP	80.3 ± 12.4	105.8 ± 16.1	< 0.01

^aBy Wilcoxon rank sum test. MAP, mean arterial blood pressure (in millimeters of mercury); pet_CO2, end-tidal pressure of carbon dioxide (in kilopascals); ROSC, restoration of spontaneous circulation.

ISSN: 1364-8535