From: Oral nutrition or water loading before hip replacement surgery; a randomized clinical trial
Parameter | Fasting | Water | Nutrition |
---|---|---|---|
(n = 20) | (n = 18) | (n = 19) | |
Age (years) | 68.5 (9.6) | 66.4 (10.6) | 65.2 (8.0) |
Body weight (kg) | 82.5 (20.0) | 82.6 (10.8) | 83.1 (13.8) |
ASA class I/II/III (%) | 16/63/21 | 6/69/25 | 24/63/13 |
Operating time (min) | 115 (27) | 103 (20) | 99 (21) |
Blood loss (mL) | 450 (350–500) | 400 (300–450) | 400 (238–700) |
Intravenous fluid (mL) | Â | Â | Â |
 Acetated Ringer’s | 1000 (0) | 1000 (0) | 1000 (0) |
 Colloid fluida | 556 (162) | 500 (177) | 500 (177) |
Epidural anesthesia after surgery (%) | 35 | 33 | 47 |
Wound catheter after surgery (%) | 40 | 56 | 37 |
Tranexamic acid (%) | 50 | 56 | 26 |
Blood Hb | Â | Â | Â |
 Before surgery (g/dL) | 13.32 (1.15) | 13.53 (1.04) | 13.56 (1.40) |
 Morning of Day 2 (g/dL) | 10.33 (1.26) | 9.72 (1.73) | 10.41 (1.85) |
Erythrocyte transfusion | Â | Â | Â |
 Frequency (%) | 30 | 44 | 42 |
 Units given (mean) | 1.8 | 2.8 | 2.4 |
Body weight change Day 0 to Day 2 (%)b | +0.4 (2.3) | +1.9 (2.7) | +0.3 (1.7) |