Table 1.
Baseline characteristics and concurrent diseases of consecutive patients with out-of-hospital cardiac arrest admitted to the ICU.
| Total (n=360) | Total population |
No-STEMI population |
|||||
|---|---|---|---|---|---|---|---|
| STEMI (n=116) | No-STEMI (n=244) | p-value | Emergency CAG (n=82) | No emergency CAG (n=162) | p-value | ||
| Age, years (mean±SD) | 61±14 | 60±12 | 61±14 | 0.54 | 59±14 | 62±15 | 0.14 |
| Male | 291 (81) | 97 (84) | 194 (80) | 0.35 | 67 (82) | 127 (78) | 0.54 |
| Comorbidities | |||||||
| Hypertension | 85 (24) | 29 (26) | 56 (24) | 0.66 | 24 (30) | 32 (21) | 0.12 |
| Diabetes mellitus | 44 (13) | 9 (8) | 35 (15) | 0.08 | 12 (15) | 23 (15) | 0.99 |
| Known IHD | 79 (23) | 16 (14) | 63 (27) | 0.01 | 21 (26) | 42 (27) | 0.85 |
| Heart failure | 46 (13) | 3 (3) | 43 (18) | <0.0001 | 15 (19) | 28 (18) | 0.91 |
| COPD | 33 (10) | 6 (5) | 27 (11) | 0.07 | 4 (5) | 23 (15) | 0.02 |
| Renal failure | 7 (2) | 1 (1) | 6 (3) | 0.31 | 1 (1) | 5 (3) | 0.36 |
| Previously cerebral stroke | 27 (8) | 6 (5) | 21 (9) | 0.25 | 6 (7) | 15 (10) | 0.57 |
| Known malignancy | 10 (3) | 2 (2) | 8 (3) | 0.41 | 1 (2) | 7 (5) | 0.19 |
| Alcohol abuse | 48 (14) | 11 (10) | 37 (16) | 0.14 | 10 (13) | 27 (17) | 0.34 |
| Initial rhythm | |||||||
| VF/VT | 287 (80) | 103 (89) | 184 (75) | 0.003 | 74 (90) | 110 (68) | <0.0001 |
| PEA/asystole | 73 (20) | 13 (11) | 60 (25) | 8 (10) | 52 (32) | ||
| Witnessed arrest | 303 (86) | 103 (90) | 200 (85) | 0.22 | 70 (88) | 130 (83) | 0.40 |
| Bystander CPR | 214 (59) | 76 (66) | 138 (57) | 0.11 | 47 (57) | 91 (56) | 0.86 |
| Time to MECU arrival (mins) | 5 (4–7) | 5 (3–7) | 5 (4–7) | 0.87 | 6 (4–8) | 5 (4–7) | 0.02 |
| Time to ROSC (mins) | 15 (10–24) | 16 (11–26) | 15 (10–24) | 0.28 | 15 (10–24) | 15 (10–24) | 0.77 |
| Lactate at admission (mmol/l) | 9 (7–13) | 9 (7–14) | 9 (6–13) | 0.54 | 7 (5–10) | 10 (7–13) | 0.006 |
| Left ventricle ejection fraction (%) | 40 (25–50) | 40 (30–45) | 40 (25–50) | 0.66 | 40 (25–50) | 40 (20–53) | 0.77 |
| Therapeutic hypothermia | 324 (90) | 110 (95) | 214 (88) | 0.04 | 80 (98) | 134 (83) | 0.0009 |
| Final diagnosis of AMI | 184 (51) | 114 (98) | 70 (29) | <0.0001 | 23 (28) | 47 (29) | 0.88 |
Values are mean±SD, n (%) or median and interquartile range. A significance level of p<0.05 was chosen.
AMI, acute myocardial infarction; CAG, coronary angiography; COPD, chronic obstructive pulmonary disease; CPR, cardiopulmonary resuscitation; IHD, ischaemic heart disease; MECU, mobile emergency care unit; No-STEMI, other ECG patterns; PEA, pulseless electrical activity; ROSC, return of spontaneous circulation; STEMI, ST-elevation myocardial infarction in ECG; VF/VT, ventricular fibrillation/ventricular tachycardia.