Comparison between V2 and V3 Guideliner patient and lesion characteristics
| V2 | V3 | p Value | |
|---|---|---|---|
| Age (years) | 70.5±10.3 | 69±9.6 | 0.19 |
| Male gender | 82% (154/188) | 83% (103/124) | 0.79 |
| Diabetes | 17.5% (33/188) | 34% (42/124) | 0.001 |
| Prior CABG | 18% (34/188) | 26% (32/124) | 0.1 |
| Previous PCI | 41% (77/188) | 52% (64/124) | 0.06 |
| Indication | |||
| Stable angina | 50% (94/188) | 71% (88/124) | 0.0002 |
| Unstable angina | 16.5% (31/188) | 7% (9/124) | 0.017 |
| NSTEMI | 22.5% (41/188) | 19% (23/124) | 0.48 |
| STEMI | 11% (21/188) | 3% (4/124) | 0.011 |
| Access route | |||
| Right radial | 73% (137/188) | 72% (89/124) | 0.83 |
| Left radial | 7.5% (14/188) | 5% (6/124) | 0.35 |
| Femoral | 19.5% (37/188) | 23% (29/124) | 0.433 |
| Target vessel | |||
| LAD | 28.7% (54/188) | 25% (31/124) | 0.47 |
| LCx | 31.3% (59/188) | 16% (20/124) | 0.0024 |
| RCA | 39% (73/188) | 57% (71/124) | 0.0014 |
| Vein graft | 1% (2/188) | 2% (2/124) | 0.67 |
| Use of rotablation | 18.6% (35/188) | 17% (21/124) | 0.7 |
| Chronic total occlusion | 20% (38/188) | 29% (36/124) | 0.07 |
| Stents, (n) | 1.8±0.81 | 2.49±1.43 | <0.0001 |
| Total stent length (mm) | 50±26 | 59±83 | 0.17 |
| Target lesion syntax score | 17.5±12 | 17±10 | 0.7 |
| Calcification score† | |||
| None or mild | 28.1% (53/188) | 46% (57/124) | 0.0013 |
| Moderate | 26.6% (50/188) | 28% (35/124) | 0.75 |
| Severe | 45.3% (85/188) | 26% (32/124) | 0.0005 |
| Tortuosity‡ | |||
| None or mild | 20.7% (39/188) | 47% (58/124) | 0.0002 |
| Moderate | 37.2% (70/188) | 27% (34/124) | 0.07 |
| Severe | 42.1% (79/188) | 26% (32/124) | 0.003 |
Values are mean±SD, % (n). Continuous variables are compared with the independent-samples t test. Categorical data are compared using χ2 test. All statistical analyses were conducted using SPSS software V.22 (IBM Corp. Armonk, New York, USA).
†Calcification, mild (spots only), moderate (visible for <50% of vessel lumen), severe (>50% of vessel lumen is visible—train track appearance).
‡Mild (<45°single bend), moderate (2 bends >45°or single bend >90°), severe (2 bends >90°or 1 bend >120°).
CABG, coronary artery bypass graft surgery; NSTEMI, non-ST-segment elevation myocardial infarction; LAD, left anterior descending; LCx, left circumflex; PCI, percutaneous coronary intervention; RCA, right coronary artery; STEMI, ST-segment elevation myocardial infarction.