Table 3.
15% CO2 | 30% CO2 | 50% CO2 | 100% CO2 | Isoflurane | Pentobarbital–phenytoin | P | |
Total HRa | 6079 ± 3746c | 4075 ± 2342c | 1835 ± 843b,c | 2078 ± 964b,c | 6365 ± 1834c | 16,787 ± 6607b | <0.0001 |
HR/s | 57.7 ± 34.5b,c | 57.5 ± 32.4b,c | 40.0 ± 15.5b,c | 63.6 ± 25.4c | 104.1 ± 27.2c | 168.1 ± 51.5b | <0.0001 |
Total SBPa | 1520 ± 955 | 1377 ± 716 | 1003 ± 438 | 744 ± 216 | 744 ± 596 | 423 ± 396 | 0.0148 |
SBP/s | 13.4 ± 9.7 | 20.6 ± 10.1c | 25.3 ± 12.0b,c | 23.7 ± 7.2c | 11.8 ± 8.8 | 4.5 ± 4.3 | <0.0001 |
Total DBPa | 1437 ± 907 | 1320 ± 732 | 1008 ± 559 | 717 ± 268 | 636 ± 448 | 519 ± 573 | 0.0316 |
DBP/sa | 13.6 ± 8.3 | 18.4 ± 11.0c | 23.0 ± 11.0c | 21.8 ± 7.5c | 10.2 ± 6.5 | 5.7 ± 6.3 | 0.0021 |
Total MBPa | 1466 ± 921 | 1350 ± 689 | 1007 ± 522 | 719 ± 235 | 712 ± 525 | 480 ± 485 | 0.0375 |
MBP/sa | 13.9 ± 8.5 | 19.3 ± 10.2 | 23.2 ± 11.1c | 22.2 ± 7.0c | 11.4 ± 7.8 | 5.2 ± 5.3 | <0.001 |
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.