Table 2 Intraoperative characteristics
|  | BIS 35 (n = 30) | BIS 55 (n = 30) | P Value | ||
|---|---|---|---|---|---|
Duration of anesthesia (min) | 207 (142 to 229) | 190 (151 to 227) | 0.807 | ||
Duration of surgery (min) | 178 (132 to 215) | 178 (132 to 210) | 0.941 | ||
BIS | 40.2 ± 3.8 | 53.3 ± 3.2 | 0.000 | ||
MAP (mmHg) | 91 (82 to 96) | 90 (87 to 94) | 0.451 | ||
HR (bpm) | 60 (54 to 67) | 60 (56 to 65) | 0.796 | ||
Infusion volume (ml) | 2178.0 ± 581.0 | 2298.0 ± 560.0 | 0.419 | ||
Blood loss (ml) | 55 (50 to 100) | 50 (48 to 105) | 0.868 | ||
Urine volume (ml) | 300 (200 to 420) | 210 (150 to 350) | 0.131 | ||
Colostomy | Â | Â | 0.436 | ||
 Yes | 15 (50.0%) | 12 (40.0%) |  | ||
 No | 15 (50.0%) | 18 (60.0%) |  | ||
Total propofol (mg) | 1407.0 ± 334.0 | 1195.0 ± 342.0 | 0.018 | ||
Total propofol dose by body weight (mg/kg) | |||||
|  | 23.0 ± 6.0 | 18.0 ± 5.0 | 0.003 | ||
Total remifentanil (µg) | 1683.0 ± 604.0 | 1344.0 ± 487.0 | 0.020 | ||
Total remifentanil dose by body weight (µg/kg) | |||||
|  | 27.0 ± 10.0 | 20.0 ± 8.0 | 0.006 | ||
Total cisatracurium (mg) | 21 (16 to 24) | 20 (18 to 25) | 0.699 | ||
Use of norepinephrine | Â | Â | 0.297 | ||
 Yes | 19 (63.3%) | 15 (50%) |  | ||
 No | 11 (36.7%) | 15 (50%) |  | ||
Total norepinephrine (µg) | 10 (0 to 32) | 2 (0 to 12) | 0.103 | ||
Use of nitroglycerin | Â | Â | 0.080 | ||
 Yes | 5 (16.7%) | 11 (36.7%) |  | ||
 No | 25 (83.3%) | 19 (63.3%) |  | ||
Total nitroglycerin (mg) | 0 (0 to 0) | 0 (0 to 0.27) | 0.089 | ||