Table 2.
Frequency of HEART Pathway determinants.
| Risk Stratification Measure | Number (N = 141) | Percent |
|---|---|---|
| HEART score history | ||
| Slightly suspicious (0 points) | 52 | 36.9 |
| Moderately suspicious (1 point) | 54 | 38.3 |
| Highly suspicious (2 points) | 35 | 24.8 |
| Age | ||
| <45 (0 points) | 38 | 27.0 |
| 45-65 (1 point) | 80 | 56.7 |
| >65 (2 points) | 23 | 16.3 |
| ECG | ||
| Normal (0 points) | 79 | 56.0 |
| Non-specific changes (1 point) | 60 | 42.6 |
| Changes consistent with ACS (2 points) | 2 | 1.4 |
| Number of risk factors | ||
| 0 (0 points) | 16 | 11.4 |
| 1-2 (1 point) | 58 | 41.1 |
| 3 or more (2 points) | 67 | 47.5 |
| Troponin (initial) | ||
| Negative (0 points) | 133 | 94.3 |
| 1-3 x normal limit (1 point) | 4 | 2.8 |
| >3 x normal limit (2 points) | 4 | 2.8 |
| Total HEART score | ||
| 0 | 3 | 2.1 |
| 1 | 9 | 6.4 |
| 2 | 28 | 19.9 |
| 3 | 27 | 19.1 |
| 4 | 31 | 22.0 |
| 5 | 21 | 14.9 |
| 6 or greater | 22 | 15.6 |
| Serial Troponin at 3 hrs | ||
| Negative | 131 | 92.9 |
| Positive | 9 | 6.4 |
| Missing | 1 | 0.7 |
| HEART Pathway | ||
| Low risk (HEART score ≤ 3 & negative troponins at 0 and 3 hours) | 66 | 46.8 |
| High risk (HEART score > 3 or positive troponin at 0 or 3 hours) | 75 | 53.2 |
ACS = acute coronary syndrome; ADP = accelerated diagnostic protocol; HEART = History, Electrocardiogram (ECG), Age, Risk factors, and Troponin