Table 1. Clinical and angiographic characteristics of patients in two groups.
| RIPC (n = 9) | Control (n = 8) | p | |
| Age, years | 65.88 ± 4.99 | 65.25 ± 5.52 | 0.805 |
| Male, n (%) | 3 (33.3) | 3 (37.5) | 1.000 |
| BMI, kg/m2 | 23.44 ± 2.24 | 23.75 ± 3.33 | 0.825 |
| Heart rate, beats/min | 71.00 ± 8.53 | 70.38 ± 8.70 | 0.883 |
| Blood examination | |||
| ALT, U/L | 14.78 ± 7.01 | 13.50 ± 5.42 | 0.683 |
| TC, mmol/L | 4.46 ± 0.89 | 4.30 ± 1.10 | 0.752 |
| TG, mmol/L | 1.83 ± 0.40 | 1.92 ± 0.45 | 0.663 |
| LDL-C, mmol/L | 2.41 ± 0.48 | 2.46 ± 0.65 | 0.855 |
| HDL-C, mmol/L | 1.18 ± 0.27 | 1.01 ± 0.23 | 0.200 |
| Creatinine, μmol/L | 82.33 ± 7.43 | 82.13 ± 8.61 | 0.958 |
| TNI, ng/mL | 0 | 0 | - |
| TNI, ng/mL* | 0.21 ± 0.16 | 0.62 ± 0.31 | 0.004 |
| Medical histories | |||
| Current smokers, n (%) | 1 (11.1) | 1 (12.5) | 1.000 |
| Hypertension, n (%) | 6 (66.7) | 6 (75.0) | 1.000 |
| Diabetic mellitus, n (%) | 1 (11.1) | 2 (25.0) | 0.576 |
| Medication, n (%) | |||
| Aspirin | 9 (100.0) | 8 (100.0) | 1.000 |
| Statins | 9 (100.0) | 8 (100.0) | 1.000 |
| ACEI/ARB | 8 (88.9) | 8 (100.0) | 1.000 |
| Beta-blockers | 7 (77.8) | 6 (75.0) | 1.000 |
| Affected Vessels, n (%) | 0.153 | ||
| 1 | 3 (33.3) | 6 (75.0) | |
| 2 | 6 (66.7) | 2 (25.0) | |
| Lesion type, n (%) | 1.000 | ||
| Type A | 5 (55.6) | 4 (50.0) | |
| Type B | 4 (44.4) | 4 (50.0) | |
| Target vessel, n (%) | 0.453 | ||
| LAD | 5 (55.6) | 6 (75.0) | |
| Cx | 2 (22.2) | 1 (12.5) | |
| RC | 2 (22.2) | 1 (12.5) | |
| Segment, n (%) | 0.743 | ||
| Proximal | 3 (33.3) | 2 (25.0) | |
| Mid | 5 (55.6) | 4 (50.0) | |
| Distal | 1 (11.1) | 2 (25.0) | |
| Reference lumen diameter, mm | 2.92 ± 0.42 | 2.95 ± 0.37 | 0.889 |
| Stenosis, % | 77.89 ± 3.72 | 78.75 ± 3.92 | 0.649 |
| Lesion length, mm | 16.33 ± 3.35 | 15.75 ± 3.33 | 0.724 |
Data are presented as mean ± SD or n (%).
* Serum TNI levels after PCI.
ACEI, angiotensin-converting enzyme inhibitor; ALT, alanine aminotransferase; ARB, angiotensin II receptor blocker; BMI, body mass index; Cx, circumflex; HDL-C, high-density lipoprotein cholesterol; LAD, left anterior descending; LDL-C, low-density lipoprotein cholesterol; RC, right coronary; RIPC, remote ischemic preconditioning; TC, total cholesterol; TG, total triglycerides; TNI, troponin I.