Clinical Study
Relationship between the ST-Segment Resolution and Microvascular Dysfunction in Patients Who Underwent Primary Percutaneous Coronary Intervention
Table 2
Comparison of LAD and non-LAD infarctions.
| | LAD infarction () | Non-LAD infarction () | Incomplete STR () | Complete STR () | value | Incomplete STR () | Complete STR () | value |
| ST-segment resolution (%) | 24.2 ± 18.4 | 78.1 ± 15.9 | <0.001 | 29.5 ± 40.0 | 90.3 ± 14.3 | 0.013 | Ejection fraction (%) | 43.4 ± 5.0 | 51.3 ± 13.6 | 0.015 | 51.6 ± 11.5 | 56.8 ± 7.8 | 0.183 | RWMSI | 1.6 ± 0.4 | 1.4 ± 0.3 | 0.145 | 1.2 ± 0.2 | 1.1 ± 0.1 | 0.133 | Peak CK-MB (IU/L) | 236.8 ± 130.9 | 197.3 ± 147.0 | 0.382 | 156.3 ± 114.5 | 166.8 ± 116.9 | 0.843 | Peak troponin-I (ng/ml) | 60.5 ± 28.2 | 49.7 ± 34.5 | 0.281 | 47.2 ± 32.1 | 49.6 ± 28.5 | 0.852 | TMP grade after PCI | | | | | | | 1, n (%) | 1 (5.9) | 0 | 0.425 | 0 | 1 (3.7) | 0.818 | 2, n (%) | 9 (52.9) | 10 (43.5) | 0.554 | 2 (33.3) | 8 (29.6) | 0.858 | 3, n (%) | 7 (41.2) | 13 (56.5) | 0.337 | 4 (66.7) | 18 (66.7) | 0.999 | Index of microvascular resistance (U) | 33.7 ± 25.0 | 20.7 ± 14.4 | 0.046 | 28.8 ± 19.9 | 19.4 ± 8.7 | 0.148 |
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CK-MB: creatine kinase-MB; LAD: left anterior descending artery; RWMSI: regional wall motion score index; STR: ST-segment elevation resolution; TMP grade: TIMI myocardial perfusion grade.
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