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 2 Perioperative values for the patients.

	ANH 14	Non-ANH 14	P
Mean arterial blood pressure, mmHg	47.9 (1.8)	49.0 (3.6)	0.31
Central vein pressure, mmHg	4.5 (2)	6.1 (4)	0.21
Duration of surgery, min	93 (13)	100 (20)	0.26
Duration of anaesthesia, min	182 (15)	193 (23)	0.16
Duration of hypotension, min	102 (20)	110 (22)	0.34
Core temperature after surgery, C	36.5 (0.4)	36.7 (0.7)	0.20
Postoperative ICU-time, hrs	6.8 (1.2)	7.1 (0.8)	0.36

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

ISSN: 1471-2253