Table 2. Clinical presentation and angiographic findings in STEMI patients before and during the Covid-19 pandemic.
| Characteristic | Total N = 841 | Covid-19 era N = 424 | Control period N = 417 | P value |
|---|---|---|---|---|
| Time from symptom onset to hospital admission (minutes), median (IQR) | 163 (89,464) | 186 (97,732) | 130 (75,243) | < .001 |
| Time from hospital admission to reperfusion (minutes), median (IQR) | 52 (29,90) | 56 (30,118) | 49 (27,75) | .001 |
| Time from symptom onset to reperfusion (minutes), median (IQR) | 230 (140,693) | 290 (161,1080) | 180 (122, 292) | < .001 |
| Mode of transportation: | .006 | |||
| Mobile ICCU, N (%) | 555 (66) | 290 (68.4%) | 265 (63.5%) | |
| Regular ambulance, N (%) | 95 (11.3) | 57 (13.4%) | 38 (9.1%) | |
| Private car, N (%) | 172 (21) | 68 (16%) | 104 (25%) | |
| In-patient, N (%) | 19 (2.3) | 9 (3.1%) | 10 (2.4%) | |
| Killip class at admission: | .030 | |||
| 1, N (%) | 646 (85.3) | 297 (81%) | 349 (89%) | |
| 2, N (%) | 43 (5.7) | 26 (7.1%) | 17 (4.3%) | |
| 3, N (%) | 30 (4) | 18 (4.9%) | 12 (3.1%) | |
| 4, N (%) | 38 (5) | 24 (6.6%) | 14 (3.6%) | |
| Admission heart rate, bpm, median (IQR) | 78 (69,90) | 79 (68,90) | 78 (67,90) | .525 |
| Admission systolic BP, mmHg, mean ± SD | 137 ± 28 | 135 ± 28 | 139 ± 29 | .065 |
| Admission diastolic BP, mmHg, median (IQR) | 80 (70,90) | 80 (70,90) | 80 (71,92) | .341 |
| Primary reperfusion, N (%) | 698 (87) | 368 (87) | 330 (87) | .955 |
| Total angiography during hospitalization, N (%) | 822 (98) | 420 (99) | 402 (96) | .018 |
| Number of diseased vessels: | < .001 | |||
| 1, N (%) | 314 (39) | 183 (44%) | 131 (34%) | |
| 2, N (%) | 246 (31) | 127 (30%) | 119 (31%) | |
| 3, N (%) | 190 (24) | 103 (24%) | 87 (23%) | |
| MINOCA, N (%) | 51 (6.4) | 6 (1.4%) | 45 (12%) | |
| Infarct Related Artery: | .202 | |||
| Left main, N (%) | 1 (0.1) | 0 (0.0) | 1 (0.3%) | |
| LAD, N (%) | 340 (47) | 196 (48.6%) | 144 (45.3%) | |
| LCx, N (%) | 104 (14.4) | 65 (16.1%) | 39 (12.3%) | |
| Ramus, N (%) | 6 (0.8) | 4 (1.0%) | 2 (0.6%) | |
| RCA, N (%) | 265 (37) | 137 (34%) | 128 (40.3%) | |
| Vein graft, N (%) | 4 (0.6) | 1 (0.2%) | 3 (0.9%) | |
| EF, median (IQR) | 45 (39,50) | 45 (40,50) | 45 (38,51) | .937 |
| Length of hospitalization (days), median (IQR) | 4 (3,5) | 4 (3,5) | 3 (3,5) | .292 |
STEMI = ST-segment elevation myocardial infarction; IQR = interquartile range; ICCU = intensive cardiac care unit; BP = Blood pressure; SD = Standard deviation; MINOCA = myocardial infarction with non-obstructive coronary arteries; LAD = left anterior descending artery; LCx = Left circumflex artery; RCA = right coronary artery; EF = ejection fraction.