Table 1 Demographic and perioperative characteristics for 35 patients undergoing surgery for ovarian cancer
|  | FiO2 = 0.30 | FiO2 = 0.80 |
|---|---|---|
|  | (n = 15) | (n = 20) |
Age (years) | 59 ± 16 | 64 ± 13 |
Body mass index (kg/m2) | 23 ± 4 | 27 ± 8 |
Body weight (kg) | 66 ± 15 | 72 ± 19 |
Smoking status | Â | Â |
Previous smoker | 1 (8%) | 3 (17%) |
Current smoker | 5 (33%) | 6 (30%) |
ASA physical status I/II/III | 5/8/2 | 4/12/4 |
Co-existing diseases | Â | Â |
Hypertension | 6 (40%) | 12 (60%) |
Other cardiovascular disease | 1 (7%) | 5 (25%) |
Respiratory disease | 1 (7%) | 1 (5%) |
Preoperative hemoglobin (mmol/l) | Â | Â |
|  | 7.8 ± 0.7 | 7.6 ± 0.7 |
Amount of ascites | Â | Â |
< 50 mL | 9 (60%) | 13 (65%) |
50-999 mL | 3 (20%) | 1 (5%) |
1000-2999 mL | 3 (20%) | 1 (5%) |
≥ 3000 mL | 0 - | 5 (25%) |
Epidural analgesia | 14 (93%) | 14 (70%) |
Morphine dose (mg)* | 5 [0–10] | 0 [0–6] |
Duration of FIO2 = 1.0 (min) | 14 [13–16] | 15 [13–17] |
Duration of anesthesia (min) | 179 [140–282] | 154 [118–256] |
Blood loss (mL) | 600 [355–1200] | 575 [75–1385] |
Crystalloid infused (mL) | 2000 [1220–2500] | 1735 [1160–3500] |
Colloid infused (mL) | 500 [0–1000] | 500 [500–1020] |
Patients receiving blood | 6 (40%) | 5 (25%) |
Units of blood transfused | 2 ± 1 | 4 ± 2 |
Ephedrine dose (mg) | 30 [0–30] | 30 [10–48] |
Other vasopressors | 7 (47%) | 8 (40%) |