Table 1

Characteristics of the study population at baseline and outcome

Characteristic
All patients (n = 40)
Outcomea



Good (n = 13)
Poor (n = 27)
P value

Mean age (years)
58 ± 14
53 ± 17 (15 to 76)
61 ± 12 (30 to 81)
0.12
SAPS II score
61 ± 19
49 ± 18 (13 to 75)
66 ± 17 (41 to 125)
0.01
Men (n)
31/40
8/13 (62%)
23/27 (85%)
0.23
Ventricular fibrillation
14
8 (57%)
6 (43%)

Asystole
23
4 (17%)
19 (83%)

Other pulseless electric activity
3
1 (33%)
2 (67%)

Temperature on admission to the emergency department (°C)
36 ± 1
36.1 ± 1.1 (33.8 to 38)
35.9 ± 1.1 (33.6 to 37.7)
0.86
Glasgow Coma Scale score
4 ± 1
4 ± 2 (3 to 7)
3 ± 1 (3 to 7)
0.20
Glucose on admission (mmol/l)
13.6 ± 5
14.6 ± 4.9 (9 to 24.4)
13.1 ± 5.1 (2.6 to 22.2)
0.55
Lactates on admission (mmol/l)
9.8 ± 6.4
8.4 ± 5.8 (2.3 to 19.1)
10.5 ± 6.6 (2.4 to 24.8)
0.20
Arterial pH on admission
7.25 ± 0.18
7.25 ± 0.15 (6.93 to 7.45)
7.25 ± 0.19 (6.84 to 7.54)
0.55
Estimated time of anoxia (min)
11 ± 9
7 ± 4 (0 to 14)
13 ± 9 (1 to 40)
0.03
Time from initiation of ACLS to ROSC (min)
16 ± 10
21 ± 12 (1 to 45)
14 ± 8 (1 to 35)
0.06
Time from ACLS to initiation of MIH (min)
98 ± 54
103 ± 50 (45 to 190)
96 ± 57 (55 to 300)
0.51
Time from initiation of MIH to achieving goal temperature (min)
187 ± 119
198 ± 88 (30 to 360)
181 ± 132 (30 to 600)
0.25

Values are expressed as mean ± standard deviation. aGood outcome corresponded to CPC scores of 1 or 2; poor outcome corresponded to CPC scores of 3 to 5. ACLS, advanced cardiac life support; CA, cardiac arrest; MIH, mild induced hypothermia; ROSC, return of spontaneous circulation; SAPS, Simplified Acute Physiology Score.

Pichon et al. Critical Care 2007 11:R71   doi:10.1186/cc5956