Preoperative Acute Normovolaemic Hemodilution (ANH) in combination with Hypotensive Epidural Anaesthesia (HEA) during knee arthroplasty surgery. No effect on transfusion rate. A randomized controlled trial [ISRCTN87597684]

Table 5 Perioperative blood measurements.

	ANH 14	Non-ANH 14	P
Hematocrit preoperative, %	38.7 (3)	38.1 (5)	0.71
Hematocrit at start of surgery, %	30.4 (5)	38.1 (5)	0.001^*
Hematocrit 1. hour postop, %	28.7 (3)	32 (4)	0.04^*
Hematocrit 1. postop day, %	29.8 (3)	29.9 (4)	0.91
Hematocrit 2. postop day, %	30.7 (3)	29.9 (4)	0.63
Hematocrit 3. postop day, %	30.4 (3)	28.8 (2)	0.14
Hematocrit 5. postop day, %	29.4 (3)	30.3 (4)	0.53
Platelet count preoperative, 10⁶/l	257 (72)	265 (63)	0.35
Platelet count 1. postop day, 10⁶/l	190 (60)	185 (42)	0.81
Platelet count 5. postop day, 10⁶/l	322 (85)	337 (77)	0.38
APTT preoperative, sec	32 (3)	30 (3)	0.16
Creatinine preoperative, mol/L	83 (21)	85 (23)	0.79
Creatinine 1. postop.day, mol/L	82 (20)	80 (17)	0.58
Creatinine 5. postop day, mol/L	80 (22)	74 (13)	0.39

ANH: Acute normovolaemic hemodilution; non-ANH: No acute normovolaemic hemodilution; Mean (SD) ^* significance

ISSN: 1471-2253