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%) |