Table 2.
Procedural and angiographic characteristics of patients.
| Characteristic | Value |
|---|---|
| Time intervals, min | |
| Symptom onset to hospital arrival | 194.00 ± 165.40 |
| Hospital arrival to catheterization laboratory | 15.70 ± 4.43 |
| Catheterization laboratory to radial access | 7.87 ± 2.22 |
| Infarct-related artery | |
| Left anterior descending coronary artery | 17 (56.7) |
| Right coronary artery | 10 (33.3) |
| Left circumflex coronary artery | 3 (10.0) |
| Multivessel disease | 15 (50.0) |
| TIMI flow grade before PCI | |
| 0 | 30 (100.0) |
| 1 | 0 (0.0) |
| Time for VCR model※ establishment, min | 12.44 ± 2.03 |
| VCR duration, s | 750 (750, 760) |
| PCI procedure duration, min | 44.70 ± 3.23 |
| Mean aortic pressure during VCR, mmHg | 100.50 (96.00, 106.00) |
| Mean heart rate during VCR, bpm | 72.00 (61.50, 80.25) |
| Drug-eluting stent implantation | 16 (53.3) |
| Total stent number (n = 16) | 2 (1, 2) |
| Total stents length, mm (n = 16) | 32.50 (22.0, 51.50) |
| Minimum stent diameter, mm (n = 16) | 3.50 (3.00, 3.90) |
| Drug-eluting balloon implantation | 14 (46.7) |
| Total balloon number (n = 14) | 1 (1, 1) |
| Total balloon length, mm (n = 14) | 29.00 (23.80, 32.50) |
| Minimum balloon diameter, mm (n = 14) | 3.00 (3.00, 3.10) |
| Plain balloon angioplasty | 2 (6.7) |
| Thrombosis aspiration | 3 (10.0) |
| Intra-aortic balloon pump | 4 (13.3) |
| Glycoprotein IIb/IIIa therapy | 3 (10.0) |
| TIMI flow grade < 3 post PCI | 2 (6.6) |
| Non-infarct-related artery with stenosis >70% | 15 (50.0) |
| Intervention for non-infarct-related artery | 11 (36.7) |
| Immediate complete revascularization | 5 (45.5) |
| Staged complete revascularization | 6 (54.5) |
| Doses of heparin, IU | 8000.00 (7000.00, 9250.00) |
| Medication at discharge | |
| Aspirin | 26 (86.7) |
| Clopidogrel | 26 (86.7) |
| Ticagrelor | 3 (10.0) |
| Statins | 26 (86.7) |
| Beta-blockers | 20 (66.7) |
| Calcium channel blockers | 0 (0.0) |
| ACEI/ARB | 15 (50.0) |
VCR: volume-controlled reperfusion; TIMI: thrombolysis in myocardial infarction; PCI: percutaneous coronary intervention; ACEI/ARB: angiotensin converting enzyme inhibitors/angiotensinogen type II receptor blockers. ※ VCR model establishment: femoral artery route opened, dual guiding catheter engaged into the target coronary artery, balloon positioned at the site of the index lesion, aspiration catheter advanced to the target segment.