LAD system (n = 315) | Non-LAD system (n = 238) | |||||
---|---|---|---|---|---|---|
EF < 55 % | EF ≥ 55 % | P | EF < 55 % | EF ≥ 55 % | P | |
n = 169 | n = 146 | n = 64 | n = 174 | |||
(1) Clinical characteristics | ||||||
Male (%) | 133 (78.7 %) | 121 (82.9 %) | 0.349 | 54 (84.4 %) | 139 (79.9 %) | 0.433 |
Age (years) | 65.4 ± 11.4 | 60.7 ± 12.7 | <0.01 | 67.4 ± 11.9 | 63.9 ± 11.3 | 0.034 |
Hypertension (%) | 98 (58.7 %) | 82 (56.6 %) | 0.704 | 40 (62.5 %) | 114 (65.9 %) | 0.627 |
Diabetes (%) | 94 (55.6 %) | 68 (46.6 %) | 0.098 | 29 (45.3 %) | 79 (45.7 %) | 0.961 |
Stable angina history (%) | 58 (34.3) | 59 (40.4 %) | 0.265 | 25 (39.1 %) | 62 (35.6 %) | 0.626 |
Time to hospital (hours) | 6.0 ± 2.5 | 5.3 ± 2.7 | <0.01 | 6.6 ± 2.7 | 5.3 ± 2.4 | <0.01 |
D-to-B time (minutes) | 76.2 ± 27.4 | 74.6 ± 25.6 | 0.675 | 71.2 ± 21.3 | 74.3 ± 22.7 | 0.304 |
(2) Angiographic characteristics | ||||||
Number of disease vessels | 1.8 ± 0.8 | 1.6 ± 0.8 | 0.197 | 2.2 ± 0.8 | 1.9 ± 0.8 | 0.061 |
Multi-vessel stenosis (%) | 94 (55.6 %) | 66 (45.2 %) | 0.065 | 47 (73.4 %) | 100 (57.5 %) | 0.025 |
--two vessels disease (including culprit vessel) | 56 | 35 | 19 | 51 | ||
--three vessels disease (including culprit vessel) | 38 | 31 | 28 | 49 | ||
--LAD AMI complicated with LCX stenosis | 64 | 46 | -- | -- | ||
--LAD AMI complicated with RCA stenosis | 68 | 51 | -- | -- | ||
--non-LAD AMI complicated with LAD stenosis | -- | -- | 24 | 48 | ||
Occlusion in proximal segment (%) | 101 (59.8 %) | 70 (47.9 %) | 0.036 | 21 (32.8 %) | 57 (32.8) | 0.994 |
Slow or no reflow (%) | 34 (20.1 %) | 26 (17.8 %) | 0.603 | 12 (18.8 %) | 20 (11.5 %) | 0.146 |
Post-PCI SBP (mmHg) | 114.5 ± 16.8 | 119.2 ± 16.7 | 0.014 | 110.7 ± 18.7 | 113.1 ± 16.5 | 0.368 |
Post-PCI DBP (mmHg) | 70.7 ± 9.1 | 72.9 ± 7.7 | 0.027 | 68.5 ± 11.0 | 70.9 ± 9.0 | 0.123 |