|
Age (years)
|
60 (49 to 72)
|
61 (50 to 71)
|
0.62
|
|
Male gender
|
62 (78)
|
55 (70)
|
0.20
|
|
Pittsburgh overall performance category scale 1 before index cardiac arrest
|
78 (99)
|
79 (100)
|
>0.99
|
|
Initial rhythm
| | |
0.72
|
|
Ventricular fibrillation
|
23 (29)
|
25 (32)
| |
|
Pulseless electrical activity
|
35 (44)
|
30 (38)
| |
|
Asystole
|
21 (27)
|
24 (30)
| |
|
Bystander cardiopulmonary resuscitation
|
42 (53)
|
37 (47)
|
0.43
|
|
Time interval from collapse to start of cardiopulmonary resuscitation (minutes)
|
8 (1 to 12)
|
5 (1 to 10)
|
0.29
|
|
Time interval from collapse to return of spontaneous circulation (minutes)
|
35 (22 to 49)
|
39 (14 to 50)
|
0.86
|
|
Hypertension
|
36 (46)
|
25 (32)
|
0.07
|
|
Diabetes mellitus
|
23 (29)
|
16 (20)
|
0.20
|
|
Previous history of heart disease
|
31 (39)
|
20 (25)
|
0.06
|
|
Previous history of myocardial infarction
|
12 (15)
|
5 (6)
|
0.07
|
|
Previous history of chronic heart failure
|
12 (15)
|
9 (11)
|
0.48
|
|
Cause of cardiac arrest
| | | |
|
Acute coronary syndrome
|
35 (44)
|
20 (25)
| |
|
Old myocardial infarction
|
8 (10)
|
7 (9)
| |
|
Cardiomyopathy
|
8 (10)
|
4 (5)
| |
|
Spasm of coronary artery
|
4 (5)
|
1 (1)
| |
|
Others
|
18 (23)
|
14 (21)
| |
|
Unknown
|
6 (8)
|
33 (42)
| |
|
Emergency coronary angiography
|
44 (56)
|
20 (25)
|
<0.01
|
|
Primary percutaneous coronary intervention
|
23 (29)
|
9 (11)
|
<0.01
|
|
Use of intra-aortic balloon pump
|
44 (56)
|
15 (19)
|
<0.001
|
|
Use of extracorporeal life-support
|
21 (27)
|
5 (6)
|
<0.001
|
|
Duration of hospital stay (days)
|
16 (4 to 27)
|
1 (0 to 11)
|
<0.001
|
|
Favorable neurological outcome
|
24 (30)
|
23 (29)
|
0.86
|
|
Good cerebral performance
|
24 (30)
|
23 (29)
| |
|
Coma or vegetative state
|
6 (8)
|
1 (1)
| |
|
Dead
|
49 (62)
|
55 (70)
| |
|
Thirty-day survival
|
32 (41)
|
23 (29)
|
0.13
|
