Table II. A.

Operative characteristics of open abdominal aortic aneurysm repair

Variable	Open repair (N = 1348)
	Elective (N = 1014)	P valuea	Symptomatic (N = 96)	P valueb	Ruptured (N = 238)
Estimated blood loss,c mL	1100 (700–1700)	.1	1200 (800–1850)	<.01	2700 (1500–5000)
Crystalloid,c mL	5000 (4000–6500)	.4	5500 (4100–7000)	<.01	7000 (4500–9700)
Intraop pRBC,d U	0.6 ± 1.29	.15	1.2 ± 2	<.01	6.7 ± 6.1
Heart rate, beats/mind
On arrival in OR	65 ± 13	.001	73 ± 14	<.001	90 ± 22
Highest intraop	78 ± 15	.029	84 ± 14	<.0018	102 ± 26
Proximal clamp positiond
Suprarenal, %	26	>.99	25	.001	43
Extubated in ORd, %	77	<.001	43	<.001	4

OR, Operating room; pRBC, packed red blood cells.

^aElective vs symptomatic

^bsymptomatic vs rupture; significant at level of .05.

^cValues reported as median (interquartile range) and compared with rank-sum test.

^dValues reporated as mean ± standard deviation.