Table 2.
Clinical and Angiographic Characteristics and Hospital Management of Patients With and Without ID
| No ID (n = 71) | ID (n = 54) | P Value | |
|---|---|---|---|
| Time symptom onset-balloon, min | 169 (138-257) | 189 (134-273) | 0.942 |
| Initial systolic blood pressure, mm Hg | 146 ± 3 | 146 ± 4 | 0.932 |
| Initial heart rate, beats/min | 75 (65-86) | 76 (62-87) | 0.822 |
| Killip class ≥2 | 10 (14.1) | 8 (14.8) | 0.908 |
| GRACE score | 107 ± 4 | 112 ± 4 | 0.328 |
| Initial TIMI flow grade 0-1 | 51(85.0) | 47 (95.9) | 0.118 |
| Final TIMI flow grade 3 | 68 (97.1) | 54 (100) | 0.317 |
| Multivessel disease | 24 (34.3) | 22 (42.3) | 0.366 |
| Reinfarction | 1 (1.4) | 2 (3.7) | 0.398 |
| Worse Killip class ≥3 | 1 (1.4) | 3 (5.6) | 0.214 |
| Ventricular fibrillation | 7 (9.9) | 10 (18.5) | 0.162 |
| Paroxysmal atrial fibrillation | 3 (4.2) | 2 (3.7) | 0.628 |
| Advanced auriculoventricular block | 0 (0.0) | 2 (3.7) | 0.185 |
| Glycoprotein IIb/IIIa inhibitors | 24 (34.3) | 29 (53.7) | 0.030 |
| Dual antiplatelet therapy at discharge | 71 (100) | 52 (96.3) | 0.185 |
| Oral anticoagulants at discharge | 5 (7.0) | 4 (7.4) | 1.000 |
| Beta-blockers at discharge | 68 (95.8) | 48 (88.9) | 0.260 |
| ACE inhibitors/ARB at discharge | 70 (98.6) | 52 (96.3) | 0.398 |
| Aldosterone inhibitors at discharge | 18 (25.4) | 12 (22.2) | 0.685 |
| Statins at discharge | 70 (98.6) | 51 (94.4) | 0.214 |
Values are median (25th-75th percentiles), mean ± SEM, or n (%).
GRACE = Global Registry of Acute Coronary Events; TIMI = Thrombolysis In Myocardial Infarction; other abbreviations in Table 1.