Baseline data
| Variable | Mean (±SD) number (%) |
| Age, years | 67.9 (±11.4) |
| Gender | |
| Male | 32 (65.3%) |
| Female | 17 (34.7%) |
| BMI, kg/m2 | 29.1 (±5.8) |
| Previous CVA | 2 (4.1%) |
| Peripheral vascular disease | 4 (8.2%) |
| Non-cardiac surgery | 2 (4.1%) |
| Previous MI | 23 (46.9%) |
| Previous CABG | 11 (22.4%) |
| Previous PCI | 24 (29%) |
| Diabetes | |
| Not diabetic | 27 (55.1) |
| Diet controlled | 1 (2) |
| Oral medicine | 12 (24.5) |
| Insulin dependent | 9 (18.4%) |
| Clinical syndrome | |
| Stable angina | 25 (50%) |
| UA/NSTEMI | 17 (34%) |
| STEMI | 8 (16%) |
| Cardiogenic shock (consequence of STEMI) | 3 (6%) |
| Target vessel | |
| LMS/LAD | 21 (42%) |
| LCX/RCA | 26 (52%) |
| SVG | 3 (6%) |
| Procedure urgency | |
| Elective | 23 (46%) |
| Urgent | 19 (38%) |
| Emergency | 8 (16%) |
| LV function | |
| Good (EF >50%) | 31 (63.3) |
| Moderate (EF 30%–50%) | 8 (16.3) |
| Poor (EF <30%) | 4 (8.2) |
| Unknown | 6 (12.2) |
| Diagnostic devices | |
| None | 38 (76%) |
| IVUS/OCT | 7 (14%) |
| Pressure wire | 2 (4%) |
| Procedural indications | |
| Heavily calcified lesion | 22 (44%) |
| CTO (failure to cross) | 10 (20%) |
| High thrombus burden | 11 (22%) |
| In-stent restenosis | 7 (14%) |
| 6 Fr guide catheter | 41 (82%) |
| Arterial access | |
| Radial (right/left) | 30 (60%) |
| Femoral | 16 (32%) |
| Combined (radial/femoral) | 4 (8%) |
| Glycoprotein IIb/IIIa (eptifibatide) | 8 (16%) |
BMI, body mass index; CABG, coronary artery bypass grafting; CTO, chronic total occlusion; EF, ejection fraction; IVUS, intravascular ultrasound; LAD, left anterior descending artery; LCX, left cercumflex artery; LMS, left main stem; LV, left ventricle; MI, myocardial infarction; NSTEMI, non-ST-elevation myocardial infarction; OCT, optical coherence tomography; PCI, percutaneous coronary intervention; RCA, right coronary artery; STEMI, ST-elevation myocardial infarction; SVG, saphenous vein grafts; UA, unstable angina.