Table 3.
Factors affecting outcomes among resuscitated* patients presenting following an out-of-hospital cardiac arrest to the Sultan Qaboos University Hospital, Muscat, Oman (N = 85)
| Variable | n (%) | P value | |
|---|---|---|---|
| Survived (n = 28) | Died (n = 57) | ||
| CPR | |||
| Median time before-hand in minutes (IQR) | 10 (0–30) | 30 (20–40) | <0.01 |
| Median duration in minutes (IQR) | 12 (6–20) | 20 (15–30) | <0.01 |
| Blood investigations | |||
| Mean serum potassium in mEq/L ± SD | 4.5 ± 1.1 | 3.9 ± 1.7 | 0.09 |
| Median ABG pH (IQR) | 7.1 (6.9–7.2) | 6.9 (6.7–7.0) | 0.02 |
| Median serum creatinine in mg/dL (IQR) | 81 (67–128) | 99 (66–170) | 0.43 |
| Catheterisation | 0.21† | ||
| Yes | 23 (37.1) | 39 (62.9) | |
| No | 5 (21.7) | 18 (78.3) | |
| Significant disease | 0.41† | ||
| Yes | 14 (33.3) | 28 (66.7) | |
| No | 9 (42.9) | 12 (57.1) | |
| Vessel involved | 0.12† | ||
| LAD artery | 10 (29.4) | 24 (70.6) | |
| Circumflex artery | 5 (23.8) | 16 (76.2) | |
| RCA | 5 (22.7) | 17 (77.3) | |
| Number of vessels involved | 0.05 | ||
| 0 | 9 (45) | 11 (55) | |
| 1 | 9 (50) | 9 (50) | |
| 2 | 4 (40) | 6 (60) | |
| 3 | 1 (7.1) | 13 (92.9) | |
| Intracoronary stenting | 0.38† | ||
| Yes | 10 (35.7) | 18 (64.3) | |
| No | 13 (37.1) | 22 (62.9) | |
| IABP | 0.02 | ||
| Yes | 2 (12.5) | 14 (87.5) | |
| No | 23 (43.4) | 30 (56.6) | |
| TPW | 0.16 | ||
| Yes | 2 (16.7) | 10 (83.3) | |
| No | 23 (40.4) | 34 (59.6) | |
CPR = cardiopulmonary resuscitation; IQR = interquartile range; SD = standard deviation; ABG = arterial blood gas; LAD = left anterior descending; RCA = right coronary artery; IABP = intra-aortic balloon pump; TPW = temporary pacing wire.
*
After returning to spontaneous circulation.
†
Calculated using a Chi-squared test.