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Histological scoring parameters used to semi-quantify myocardial slices.
| Parameter | Score | Quantitative value |
|---|---|---|
| 1. Contraction bands/coagulation necrosis | 0 | Absent |
| 1 | 1%–10% of cardiomyocytes | |
| 2 | 11%–50% of cardiomyocytes | |
| 3 | 51%–100% of cardiomyocytes | |
| 2. Interstitial edema | 0 | Absent |
| 1 | Present | |
| 3. Granulocyte infiltration | 0 | Absent |
| 1 | Present | |
| 4. Platelet aggregates/thrombi | 0 | Absent |
| 1 | Present | |
| 5. Extravasation of red blood cells | 0 | Absent |
| 1 | Present |
