All | Preload responders | Preload non-responders | Difference | p | |
---|---|---|---|---|---|
Age, yrs | 68 (58–74) | 67 (59–73) | 69 (59–74) | 0 (− 5 to 4) | 0.96 |
Female gender, % (no.) | 60 (38/63) | 46 (24/43) | 70 (14/20) | N/A | 0.28 |
Weight, kg | 73 (62–86) | 73 (63–86) | 74 (61–85) | − 1.5 (− 9.0 to 8.0) | 0.75 |
Height, cm | 169 (164–176) | 170 (165–177) | 165 (162–174) | − 3.2 (− 8.0 to 1.7) | 0.19 |
POSSUM physiology score | 15 (13–17) | 15 (9) | 15 (11) | N/A | 0.68 |
ASA | 2 (2–3) | 2 (2) | 2 (1) | N/A | 0.11 |
Perioperative bleeding, ml | 600 (300–1000) | 600 (300–1000) | 500 (225–975) | − 50 (− 200 to 300) | 0.61 |
Perioperative diuresis, ml/kg/h | 0.7 (0.4–1.1) | 0.7 (0.4–1.1) | 0.4 (0.3–1.0) | 0.2 (− 0.4 to 0.0) | 0.12 |
Perioperative crystalloids, ml | 4400 (4000–5250) | 4350 (4000–5250) | 4400 (3960–5440) | − 105 (− 861 to 650) | 0.90 |
Perioperative colloid, ml | 600 (425–1000) | 750 (250–1000) | 500 (500–1000) | − 56 (− 326 to 212) | 0.68 |
Length of surgery, min | 404 (329–497) | 600 (300–1000) | 399 (281–478) | − 32 (− 94 to 29) | 0.29 |
Length of anesthesia, min | 503 (448–585) | 513 (454–592) | 499 (360–562) | − 27 (− 90 to 33) | 0.36 |
Epidural anesthesia, % (no.) | 92 (58/63) | 91(39/43) | 95(19/20) | N/A | 0.56 |
Perioperative use of vasopressor, % (no.) | 84 (53/63) | 86 (37/43) | 80 (16/20) | N/A | 0.54 |
Perioperative use of inotropy, % (no.) | 14 (9/63) | 14 (6/43) | 15 (3/20) | N/A | 0.91 |