Table 2 Maximal oxygen pressure (PaO 2 ), inspired oxygen concentration (FiO 2 ) and P/F ratio according to location of the cardiac arrest
All patients | OHCA | IHCA | ICUCA | P-value | |
|---|---|---|---|---|---|
n = 119 | n = 51 | n = 48 | n = 20 | ||
PaO 2 max (mmHg) | |||||
0-1 h | 180 (101–349) | 265 (145–466) | 124 (91–211) | 177 (92–390) | 0,001 |
1-24 h | 212 (126–318) | 295 (205–441) | 169 (123–247) | 138 (120–234) | 0,001 |
FiO 2 max | |||||
0-1 h | 100 (50–100) | 100 | 100 (50–100) | 100 (50–100) | 0,001 |
1-24 h | 100 (30–100) | 100 (35–100) | 100 (30–100) | 90 (35–100) | 0,233 |
P/F -ratio | |||||
0-1 h | 187 (105–358) | 265 (145–466) | 127 (93–222) | 218 (136–390) | 0,001 |
1-24 h | 293 (178–425) | 408 (286–518) | 226 (150–333) | 230 (140–389) | 0,001 |
Hyperoxia exposure | 41% | 65% (33) | 21% (10) | 30% (6) | 0,001 |
0-1 h | 28% (30) | 44% (20) | 12% (5) | 26% (5) | 0,005 |
1-24 h | 28% (32) | 47% (24) | 11% (5) | 16% (3) | 0,000 |