Table 1 Demographic and intraoperative variables
PR-S (n = 15) | PR-AVP (n = 15) | SN-S (n = 15) | SN-AVP (n = 15) | P-value | |
|---|---|---|---|---|---|
Gender (Male/female) | 6/9 | 5/10 | 5/10 | 7/8 | 0.86 |
Age (yr) | 62 (46–70) | 59 (53–78) | 62 (45–77) | 65 (51–73) | 0.45 |
Weight (kg) | 64 ± 9 | 59 ± 10 | 62 ± 12 | 65 ± 11 | 0.45 |
Catheter placed (right/left) | 6/9 | 3/12 | 4/11 | 6/9 | 0.56 |
Hemoglobin (g/dl) | 13.7 ± 1.0 | 13.1 ± 1.3 | 13.7 ± 1.5 | 13.2 ± 1.3 | 0.51 |
Underlying diseases | |||||
Hypertension | 5 | 7 | 4 | 5 | 0.71 |
Diabetes | 4 | 1 | 2 | 2 | 0.48 |
Preoperative medication | |||||
β-blockers | 1 | 2 | 2 | 1 | 0.84 |
Calcium channel blockers | 2 | 4 | 3 | 5 | 0.62 |
ACEI or Ag II antagonist | 2 | 2 | 2 | 3 | 0.95 |
Smoking history | 3 | 2 | 2 | 1 | 0.77 |
Ephedrine administered | |||||
Number of patients | 11 | 4 | 6 | 3 | 0.01 |
Total dose per patient (mg) | 15 ± 4 | 10 ± 4 | 13 ± 4 | 11 ± 5 | 0.14 |
Sitting position time (min) | 151 ± 45 | 161 ± 29 | 181 ± 56 | 173 ± 34 | 0.24 |
Fluid administered (ml) | 1690 ± 525 | 1773 ± 508 | 1600 ± 431 | 1920 ± 543 | 0.36 |
Blood loss (ml) | 182 ± 154 | 142 ± 71 | 169 ± 116 | 116 ± 58 | 0.34 |