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.

VariableCoronary collateral circulation value
Absent ()Present ()

Preprocedural
Number of diseased coronary arteries0.28
 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 RCA0.006
 Proximal [ (%)]75 (51)61 (69.3)
 Distal [ (%)]72 (49)27 (30.7)
TIMI flow before PCI in main RCA0.8
 TIMI 0 [ (%)]131 (89)79 (90)
 TIMI 1 [ (%)]16 (11)9 (13)
TIMI flow before PCI in major RV branch artery0.36
 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 RCA0.18
 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 artery0.36
 Unsuccessful (TIMI 0-1) [ (%)]15 (10.2)7 (8)
 Successful (TIMI 2-3) [ (%)]132 (89.8)81 (92)

PCI: percutaneous coronary intervention; RCA: right coronary artery; RV: right ventricular; TIMI: thrombolysis in myocardial infarction.