Table 2. Angiographic properties and in-hospital mortality rates of study groups.
Reflow (N=1363) | No-reflow (N=178) | p-value | ||
---|---|---|---|---|
IRA | 0.085 | |||
LAD, n (%) | 708 (51.9) | 93 (52.2) | ||
Cx, n (%) | 340 (24.9) | 40 (22.5) | ||
RCA, n (%) | 257 (18.9) | 43 (24.2) | ||
SVG, n (%) | 58 (4.26) | 2 (1.12) | ||
Target vessel diameter ≥ 4mm, n (%) | 211 (15.5) | 22 (12.4) | 0.326 | |
Target lesion length, mm | 25.0 (20.0-38.0) | 36.0 (25.0-40.0) | <0.001 | |
Door to balloon time, min * | 40.0 (30.0-45.0) | 45.0 (30.0-60.0) | 0.011 | |
Procedure | 0.080 | |||
PCI + stenting, (%) | 1207 (88.6) | 166 (93.3) | ||
Direct stenting, (%) | 114 (8.36) | 11 (6.18) | ||
Only PCI, (%) | 42 (3.08) | 1 (0.56) | ||
TMPG ≥ 2, (%) | 1078 (79.1) | 110 (61.8) | <0.001 | |
Distal embolization, n (%) | 43 (3.15) | 24 (13.5) | <0.001 | |
ST-resolution, n (%) | 1311 (96.2) | 138 (77.5) | <0.001 | |
Thrombus burden grade ≥ 4, n (%) | 339 (24.9) | 108 (60.7) | <0.001 | |
In-hospital mortality, n (%) | 55 (4.1) | 25 (14) | < 0.001 |
IRA: infract-related artery; LAD: left anterior descending artery; Cx: circumflex; RCA: right coronary artery; SVG: saphenous venous graft; PCI: percutaneous coronary intervention; TMPG: thrombolysis in myocardial infarction (TIMI) myocardial perfusion grade.
Door-to-balloon time was defined as the time from admission to the emergency department of the PCI center to balloon inflation.