TABLE 2.

Individual Values for Age, Blood Pressure, Hemoglobin or Hematocrit, Blood Loss, and Quantities of Fluids Administered to the Patients

	Age (yr)	Lowest Intraoperative MAP	Lowest Intraoperative Hct	Lowest Postoperative Hct	% Change Preop to Intraop Hct	Blood Loss (L)	Crystalloids (L)	Colloid (L)
PION
Alexandrakis 1999	68	no hypotension	ni	ni	ni	3
Abraham 2003	24	ni	ni	ni	ni	0.35
Brown 1994	13	52	ni	ni	ni	8	10.3
Dunker 2002	66	73	32%	32%	−22%	2.4
Dunker 2002	43	60	31%	31%	−26%	2
Dunker 2002	12	60	26%	26%	−40%	2.5
Dunker 2002	57	70	24%	24%	−41%	16
Dunker 2002	44	(diastolic = 45)	26%	26%	−30%	ni
Katz 1994	49	62	ni	ni	ni	2	3
Lee 2001	58	85	39%	40%	−22%	0.8	8
Lee 1995	48	55	ni	ni	ni	ni
Murphy 2003	33	55	ni	ni	ni	1.2	4
Roth 1997	44	63	27%	27%	−38%	ni	14
Roth 1997	24	60	24%	24%	−50%	ni	6.4
Stevens 1997	79	75	25%	31%	ni	2.2	2.5	1.5
Stevens 1997	27	ni	ni	36%	ni	5	9.5	1.5
Stevens 1997	37	ni	21%	21%	−35%	9	10	3.5
AION
Dilger 1998	44	(systolic = 107)	ni	9.5	−40%	3	10	1
Katz 1994	41	62	ni	11.7	−24%	2	7
Katz 1994	60	62	ni	8.6	−48%	2	5.5	0.5
Katz 1994	65	63	ni	8	−43%	0.5	3.8
Stevens 1997	56	78	ni	ni	ni	0.85
				(Hemoglobin)	(% change to postop Hgb)

Ni = not indicated; MAP = mean arterial pressure; Hct = hematocrit; Hgb = hemoglobin.

For AION, data were not available for changes in Hct.