Table 2.
15% CO2 | 30% CO2 | 50% CO2 | 100% CO2 | Isoflurane | Pentobarbital–phenytoin | P | |
Total HRa | 4632 ± 3195 | 3104 ± 1606c | 1476 ± 566c | 2156 ± 783c | 2851 ± 2107c | 7656 ± 2654 | <0.0001 |
HR/s | 58.4 ± 38.4c | 65.2 ± 39.6c | 46.1 ± 14.0c | 86.6 ± 23.5c | 83.3 ± 33.3c | 219.9 ± 62.2b | <0.0001 |
Total SBP | 1262 ± 621b,c | 1131 ± 381b,c | 853 ± 308 | 728 ± 167 | 476 ± 334 | 322 ± 325 | <0.0001 |
SBP/s | 16.0 ± 7.7 | 23.2 ± 8.5b | 27.8 ± 10.9c | 30.0 ± 7.2c | 16.2 ± 10.9 | 9.3 ± 8.4 | <0.0001 |
Total DBPa | 1049 ± 517 | 879 ± 423 | 69 ± 302 | 54 ± 192 | 402 ± 255 | 391 ± 442 | 0.0133 |
DBP/s | 13.3 ± 6.3 | 17.8 ± 8.8 | 22.7 ± 10.2 | 22.0 ± 7.9 | 13.9 ± 8.3 | 11.3 ± 11.3 | 0.0931 |
Total MBPa | 1131 ± 559c | 986 ± 389c | 746 ± 297 | 636 ± 172 | 449 ± 308 | 362 ± 387 | 0.0057 |
MBP/s | 14.4 ± 6.8 | 20.1 ± 8.4 | 24.4 ± 10.2c | 26.1 ± 6.7c | 15.5 ± 10.3 | 10.5 ± 10.0 | 0.0067 |
DBP, diastolic blood pressure; HR, heart rate; MBP, mean blood pressure; SBP, systolic blood pressure
CO2 data have been published previously.2
Data were transformed for analysis.
Value significantly different from that for isoflurane.
Value significantly different from that for pentobarbital–phenytoin.