Table 1 Clinical and angiographic characteristics in two subgroups of the patients with preserved and impaired CFR
Characteristics | Â | Preserved CFR (N = 19) | Impaired CFR (N = 25) | p value |
|---|---|---|---|---|
Age | Â | 50.26 (8.46) | 51.76 (10.78) | 0.620 |
Gender | Men | 16 (84.2%) | 22 (88.0%) | 0.525 |
Cigarette smoking | Â | 11 (57.9%) | 13 (52.0%) | 0.467 |
Hypertension | Â | 12 (63.2%) | 17 (68.0%) | 0.492 |
Hypercholesterolemia | Â | 19 (100%) | 25 (100%) | - |
Obesity | Â | 5 (26.3%) | 9 (36.0%) | 0.363 |
ACE inhibitors | Â | 6 (31.6%) | 5 (20.0%) | 0.298 |
Beta-blockers | Â | 4 (21.1%) | 8 (32.0%) | 0.323 |
Aspirin | Â | 1 (5.3%) | 3 (12.0%) | 0.415 |
Diuretics | Â | 2 (10.5%) | 2 (8.0%) | 0.585 |
Nitrates | Â | 0 | 1 (4.0%) | 0.568 |
Peak CK-MB (U/l) | Â | 208.64 (272.20) | 428.14 (565.51) | 0.127 |
Peak Troponin I (μg/l) |  | 76.11 (102.66) | 130.00 (102.49) | 0.084 |
Time interval from the onset of chest pain to PCI | 0-3 hours | 12 (63.2%) | 7 (28.0%) | Â |
| Â | 3-6 hours | 6 (31.6%) | 7 (28.0%) | 0.011 |
| Â | > 6 hours | 1 (5.2%) | 11 (44.0%) | Â |
ECG ST-segment complete resolution (≥ 70%) during 1 hour after PCI |  | 9 (47.4%) | 4 (16.7%) | 0.033 |
TIMI flow grade before PCI | I* | 2 (10.5%) | 1 (4.0%) | 0.396 |
| Â | No flow | 17 (89.5%) | 24 (96.0%) | Â |
Collaterals | Â | 6 (31.6%) | 7 (28.0%) | 0.528 |