0 IU h− 1 | 1 IU h− 1 | 2 IU h− 1 | 3 IU h− 1 | 5 IU h− 1 | 8 IU h− 1 | P value | |
---|---|---|---|---|---|---|---|
Estimated blood loss (ml) | 693 ± 426 | 701 ± 394 | 619 ± 322 | 631 ± 404 | 625 ± 472 | 658 ± 330 | 0.977 |
Intravenous crystalloid (ml) | 900 ± 210 | 993 ± 283 | 992 ± 273 | 1004 ± 296 | 1024 ± 255 | 984 ± 206 | 0.622 |
Hb in PACU (g dL− 1) | 10.7 ± 1.0 | 10.8 ± 1.3 | 10.5 ± 0.9 | 10.9 ± 1.1 | 10.8 ± 1.2 | 10.7 ± 0.9 | 0.864 |
HCT in PACU (%) | 32.4 ± 2.8 | 32.2 ± 3.8 | 31.7 ± 2.9 | 32.5 ± 3.1 | 31.9 ± 3.4 | 32.1 ± 2.5 | 0.956 |
Hb on postoperative day 1 (g dL− 1) | 11.5 ± 1.1 | 11.3 ± 1.5 | 11.3 ± 1.1 | 11.8 ± 1.3 | 11.1 ± 1.1 | 11.6 ± 1.0 | 0.354 |
HCT on postoperative day 1 (%) | 34.0 ± 3.0 | 33.3 ± 4.3 | 33.5 ± 3.0 | 34.7 ± 3.5 | 32.6 ± 2.9 | 34.2 ± 2.7 | 0.303 |
Rescue oxytocin required [n (%)] | 13 (52) | 12 (52) | 7 (29) | 4 (17) a | 3 (12)b | 2 (8)c | 0.000 |
Secondary uterotonic agents required [n (%)] | 6 (24) | 1 (4) | 1 (4) | 0 (0)d | 0 (0)e | 0 (0)f | 0.000 |