Clinical and ECG characteristics of the patients, divided into tertiles according to the myocardial damage severity index
| Variable | Tertile I (n = 15) | Tertile II (n = 15) | Tertile III (n = 15) | p Value |
|---|---|---|---|---|
| Data are given as mean values per tertile. | ||||
| Differences are significant at p < 0.5. | ||||
| Max, maximum; STD, ST deviation; STE, ST elevation. See Methods for a description of the three methods. | ||||
| Age (years) | 57.3 | 57.7 | 61 | 0.5 |
| Time between onset of pain and initiation of reperfusion therapy (min) | 186 | 213 | 267 | 0.5 |
| TIMI flow grade | 2.9 | 2.8 | 2.7 | 0.2 |
| Random peak creatine kinase (U/l) | 1754 | 1538 | 5708 | 0.01 |
| ST segment deviation at baseline (mV) | ||||
| Sum STE | 0.82 | 0.89 | 1.20 | 0.0008 |
| Sum STD | 1.12 | 1.14 | 2.04 | 0.01 |
| Max STE | 0.29 | 0.26 | 0.54 | 0.006 |
| ST segment deviation after reperfusion therapy (mV) | ||||
| Sum STE | 0.22 | 0.58 | 0.79 | 0.004 |
| Sum STD | 0.28 | 0.69 | 0.90 | 0.006 |
| Max STE | 0.09 | 0.17 | 0.25 | 0.002 |
| Absolute ST segment deviation resolution (mV) | ||||
| Sum STE | 0.61 | 0.30 | 1.11 | 0.01 |
| Sum STD | 0.85 | 0.45 | 1.13 | 0.11 |
| Max STE | 0.19 | 0.10 | 0.29 | 0.06 |
| Relative ST segment deviation resolution (%) | ||||
| Sum STE | 57.4 | 26.3 | 47.2 | 0.06 |
| Sum STD | 61.2 | 31.1 | 51.1 | 0.08 |
| Max STE | 50.6 | 28.6 | 50.2 | 0.09 |