Research Article
Impact of Coronary Collateral Circulation on In-Hospital Death in Patients with Inferior ST Elevation Myocardial Infarction
Table 2
Preprocedural and postprocedural angiographic characteristics related to coronary collateral circulation.
| Variable | Coronary collateral circulation | value | Absent () | Present () |
| Preprocedural | | | | Number of diseased coronary arteries | | | 0.28 | 1 [ (%)] | 83 (56.4) | 43 (48.8) | | 2 [ (%)] | 31 (21.8) | 18 (20.4) | | 3 [ (%)] | 33 (22.4) | 27 (30.7) | | Coronary lesion location at RCA | | | 0.006 | Proximal [ (%)] | 75 (51) | 61 (69.3) | | Distal [ (%)] | 72 (49) | 27 (30.7) | | TIMI flow before PCI in main RCA | | | 0.8 | TIMI 0 [ (%)] | 131 (89) | 79 (90) | | TIMI 1 [ (%)] | 16 (11) | 9 (13) | | TIMI flow before PCI in major RV branch artery | | | 0.36 | TIMI 0-1 [ (%)] | 87 (59.2) | 50 (56.8) | | TIMI 2-3 [ (%)] | 60 (40.8) | 38 (43.2) | | Postprocedural | | | | TIMI flow after PCI in main RCA | | | 0.18 | Unsuccessful (TIMI 0-1) [ (%)] | 19 (13) | 10 (11.3) | | Successful (TIMI 2-3) [ (%)] | 128 (87) | 78 (88.6) | | TIMI flow after PCI in major RV branch artery | | | 0.36 | Unsuccessful (TIMI 0-1) [ (%)] | 15 (10.2) | 7 (8) | | Successful (TIMI 2-3) [ (%)] | 132 (89.8) | 81 (92) | |
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PCI: percutaneous coronary intervention; RCA: right coronary artery; RV: right ventricular; TIMI: thrombolysis in myocardial infarction.
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