Skip to main content

Table 2 Angiographic and procedural characteristics stratified by the total ischemic time

From: Time to think beyond door to balloon time: significance of total ischemic time in STEMI

Characteristics Total Total ischemic time (min) p value
Up to 120 121 to 240 More than 240
Total 5730 418 (7.3%) 2199 (38.4%) 3113 (54.3%)
Pre-procedural TIMI flow
 No flow 3272 (57.1%) 240 (57.4%) 1244 (56.6%) 1788 (57.4%) 0.022*
 I 1013 (17.7%) 70 (16.7%) 402 (18.3%) 541 (17.4%)  
 II 863 (15.1%) 66 (15.8%) 297 (13.5%) 500 (16.1%)  
 III 582 (10.2%) 42 (10%) 256 (11.6%) 284 (9.1%)  
Number of vessels involved
 None 14 (0.2%) 0 (0%) 7 (0.3%) 7 (0.2%) 0.002*
 Single vessel (SVD) 2278 (39.8%) 177 (42.3%) 938 (42.7%) 1163 (37.4%)  
 Multi vessels (MVD) 3430 (59.9%) 240 (57.4%) 1249 (56.8%) 1941 (62.4%)  
 Left main (LM) 8 (0.1%) 1 (0.2%) 5 (0.2%) 2 (0.1%)  
Infarct related artery
 None 15 (0.3%) 0 (0%) 7 (0.3%) 8 (0.3%) 0.884
 LAD 3097 (54%) 242 (57.9%) 1184 (53.8%) 1671 (53.7%)  
 Right coronary artery 1828 (31.9%) 121 (28.9%) 712 (32.4%) 995 (32%)  
 Left circumflex 660 (11.5%) 48 (11.5%) 244 (11.1%) 368 (11.8%)  
 Ramus 27 (0.5%) 2 (0.5%) 10 (0.5%) 15 (0.5%)  
 Left main 26 (0.5%) 3 (0.7%) 10 (0.5%) 13 (0.4%)  
 Diagonal 64 (1.1%) 2 (0.5%) 27 (1.2%) 35 (1.1%)  
 Others 13 (0.2%) 0 (0%) 5 (0.2%) 8 (0.3%)  
Side branch involvement
 Yes 645 (11.3%) 65 (15.6%) 227 (10.3%) 353 (11.3%) 0.008*
 No 5085 (88.7%) 353 (84.4%) 1972 (89.7%) 2760 (88.7%)  
Left ventricular dysfunction
 Yes 3239 (56.5%) 232 (55.5%) 1210 (55%) 1797 (57.7%) 0.134
 No 2491 (43.5%) 186 (44.5%) 989 (45%) 1316 (42.3%)  
Thrombus grading
 No 409 (7.1%) 28 (6.7%) 166 (7.5%) 215 (6.9%) 0.346
 Possible 591 (10.3%) 43 (10.3%) 217 (9.9%) 331 (10.6%)  
 Small 552 (9.6%) 35 (8.4%) 220 (10%) 297 (9.5%)  
 Moderate 883 (15.4%) 60 (14.4%) 345 (15.7%) 478 (15.4%)  
 Large 746 (13%) 53 (12.7%) 315 (14.3%) 378 (12.1%)  
 Total 2549 (44.5%) 199 (47.6%) 936 (42.6%) 1414 (45.4%)  
Intra-aortic balloon pump (IABP) used
 Yes 193 (3.4%) 10 (2.4%) 55 (2.5%) 128 (4.1%) 0.003*
 No 5537 (96.6%) 408 (97.6%) 2144 (97.5%) 2985 (95.9%)  
Export catheter
 Yes 1887 (32.9%) 148 (35.4%) 736 (33.5%) 1003 (32.2%) 0.339
 No 3843 (67.1%) 270 (64.6%) 1463 (66.5%) 2110 (67.8%)  
  1. LAD left anterior descending artery, TIMI thrombolysis in myocardial infarction
  2. *Significant at 5%