Preload group | Coload group | P-value | |
---|---|---|---|
(N = 30) | (N = 30) | ||
Systolic blood pressure (SBP, mmHg) | |||
Pre-operation at ward | 113 ± 11 | 111 ± 11 | 0.433 |
Before anesthesia (baseline, a) | 116 ± 13 | 113 ± 8 | 0.262 |
Lowest SBP (b) | 82 ± 13 | 88 ± 12 | 0.093 |
Delta SBP (a-b) | 34 ± 13 | 25 ± 10 | 0.002 |
Mean blood pressure (MBP, mmHg) | |||
Before anesthesia (baseline, c) | 78 ± 10 | 77 ± 9 | 0.849 |
Lowest MBP (d) | 49 ± 10 | 57 ± 12 | 0.023 |
Delta MBP (c-d) | 29 ± 11 | 20 ± 9 | 0.011 |
Heart rate (bpm) | |||
Pre-operation at ward | 76 ± 10 | 76 ± 11 | 0.914 |
Before anesthesia | 79 ± 10 | 86 ± 15 | 0.035 |
At lowest BP (d) | 95 ± 21 | 79 ± 14 | 0.023 |
Hypotension, N (%) | 25/30 (83%) | 16/30 (53%) | 0.026 |
Ephedrine dose (mg) | 15.2 ± 11.9 | 7.5 ± 8.6 | 0.015 |
Nausea, N (%) | 18/30 (60%) | 8/30 (27%) | 0.019 |
Vomiting, N (%) | 0 | 0 | - |