Table 2.
Clinical Characteristics of the Patient Group
| Parameter | fQRS Group (n = 80) | Non‐fQRS Group (n = 216) | All Patients (n = 296) | P Value |
|---|---|---|---|---|
| Anterior MI (%) | 60 | 55 | 56.41 | 0.44 |
| Inferior MI (%) | 35 | 42.12 | 40.2 | 0.26 |
| RV MI (%) | 5 | 2.77 | 3.37 | 0.34 |
| LV EF (%) | 37±11 | 44±13 | 42±13 | 0.003 |
| LV EF < 35% (%) | 45 | 20.8 | 27.36 | 0.00003 |
| Three‐vessel disease (%) | 50 | 33.3 | 44.9 | 0.009 |
| Symptom onset < 8 hours (%) | 87.5 | 92.6 | 91.2 | 0.331 |
| Symptom onset < 12 hours (%) | 97.5 | 95.4 | 95.9 | 0.994 |
| Acetylsalicylic acid* (%) | 100 | 98.14 | 98.64 | 0.22 |
| Clopidogrel* (%) | 100 | 96.29 | 97.29 | 0.08 |
| Beta‐blocker* (%) | 70 | 69.44 | 69.59 | 0.92 |
| ACE‐I* (%) | 65 | 53.7 | 56.75 | 0.08 |
| RPT (%) | 97.5 | 93.05 | 94.25 | 0.14 |
| Primary PCI (%) | 30 | 34.72 | 33.44 | 0.44 |
| Fibrinolytic therapy (%) | 67.5 | 58.33 | 60.81 | 0.15 |
fQRS = narrow fragmented QRS complex on electrocardiogram; MI = myocardial infarction; RV = right ventricle; LV EF = left ventricular ejection fraction; ACE‐I = angiotensin converting enzyme inhibitor; RPT = reperfusion therapy; PCI = percutaneous coronary intervention; (*) = drugs administered within 24 hours of infarction.