Table 1.
The clinical characteristics of the 39 comatose patients who were resuscitated from cardiac arrest
| Favourable outcome | Unfavourable outcome | P value | |
|---|---|---|---|
| Patients (n) | 13 | 26 | |
| Age (y) | 50.0 ± 16.2 | 48.5 ± 18.5 | 0.810 |
| Gender (male/female) | 8/5 | 20/6 | 0.314 |
| Witnessed arrest (n) | 8 | 16 | 1.000 |
| Bystander CPR (n) | 8 | 15 | 0.818 |
| Initial ECG on admission (n) | 0.008 | ||
| PEA | 0 | 5 | |
| VF/pulseless VT | 5 | 1 | |
| Asystole | 8 | 20 | |
| Resuscitation duration (min) | 14.8 ± 9.7 | 15.4 ± 12.4 | 0.892 |
| Time to MRI after ROSC (h) | 54.3 ± 44.5 | 52.2 ± 35.3 | 0.872 |
| Cause of arrest (n) | 0.077 | ||
| Cardiac | 8 | 8 | |
| Respiratory | 3 | 16 | |
| Unknown | 2 | 2 | |
| GOS (n) | |||
| 1. Death | 0 | 10 | |
| 2. Vegetative state | 0 | 14 | |
| 3. Severe neurologic impairment | 0 | 2 | |
| 4. Mild to moderate neurologic impairment | 2 | 0 | |
| 5. Complete recovery | 11 | 0 |
Mean ± S.D.; CPR, cardiopulmonary resuscitation; ECG, electrocardiogram; PEA, pulseless electrical activity; VF, ventricular fibrillation; VT, ventricular tachycardia; ROSC, return of spontaneous circulation; GOS, Glasgow outcome scale
Gender, witnessed arrest, bystander CPR, initial ECG on admission and cause of arrest in both groups were analysed by Chi-squared test or Fisher's exact test.
Age, resuscitation duration and time between MRI and ROSC in both groups were compared by t-test.