Characteristics and history (pooled analysis)
| EES (N=234) | BMS (N=240) | p Value | |
|---|---|---|---|
| Age, years (mean±SD) | 65.91±11.69 | 64.63±12.24 | 0.288 |
| Male gender | 176/234 (75.2%) | 175/240 (72.9%) | 0.627 |
| Hypertension | 110/234 (47.0%) | 116/240 (48.3%) | 0.773 |
| Previous MI | 36/233 (15.5%) | 33/240 (13.8%) | 0.600 |
| Previous CABG | 21/234 (9.0%) | 26/240 (10.8%) | 0.498 |
| Previous PCI | 37/234 (15.8%) | 33/240 (13.8%) | 0.527 |
| Previous stroke | 12/234 (5.1%) | 9/240 (3.8%) | 0.466 |
| Previous TIA | 1/87 (1.1%) | 7/91 (7.7%) | 0.065 |
| Diabetes mellitus | 45/234 (19.2%) | 40/240 (16.7%) | 0.467 |
| Smoking | 81/234 (34.6%) | 86/239 (36.0%) | 0.756 |
| Family history | 97/232 (41.8%) | 103/240 (42.9%) | 0.808 |
| Infarct-related vessel | 0.934 | ||
| RCA | 61/232 (26.3%) | 68/240 (28.3%) | |
| LAD | 93/232 (40.1%) | 89/240 (37.1%) | |
| CX | 61/232 (26.3%) | 62/240 (25.8%) | |
| Graft | 15/232 (6.5%) | 18/240 (7.5%) | |
| LM | 2/232 (0.9%) | 3/240 (1.2%) | |
| Lesion length | 0.239 | ||
| <10 mm | 55/180 (30.6%) | 56/182 (30.8%) | |
| 10–20 mm | 91/180 (50.6%) | 103/182 (56.6%) | |
| >20 mm | 34/180 (18.9%) | 23/182 (12.6%) | |
| Calcification | |||
| Little or none | 170/204 (83.3%) | 183/213 (85.9%) | |
| Moderate or heavy | 34/204 (16.7%) | 30/213 (14.1%) | |
| Angulation | 0.786 | ||
| None | 175/181 (96.7%) | 174/183 (95.1%) | |
| Moderate | 6/181 (3.3%) | 8/183 (4.4%) | |
| Severe | 0/181 (0.0%) | 1/183 (0.5%) | |
| Modified ACC/AHA lesion type | 0.683 | ||
| A | 4/214 (1.9%) | 4/219 (1.8%) | |
| B1 | 39/214 (18.2%) | 33/219 (15.1%) | |
| B2 | 127/214 (59.3%) | 142/219 (64.8%) | |
| C | 44/214 (20.6%) | 40/219 (18.3%) | |
| Bifurcation | 0.299 | ||
| No side branch involvement | 94/182 (51.6%) | 86/186 (46.2%) | |
| Side branch involvement | 88/182 (48.4%) | 100/186 (53.8%) | |
| Ostial location | 51/178 (28.7%) | 57/182 (31.3%) | 0.581 |
| Stent placement | 225/229 (98.3%) | 234/237 98.7%) | 0.720 |
| Direct stenting | 69/225 (30.7%) | 83/234 (35.5%) | 0.274 |
| Balloon size (mm) | 2.80±0.42 | 2.80±0.43 | 0.935 |
| Total number of stents | 1.22±0.48 | 1.18±0.42 | 0.392 |
| Maximal stent diameter (mm) | 3.13±0.41 | 3.14±0.42 | 0.878 |
| Total stent length (mm) | 22.80±10.34 | 22.34±8.97 | 0.717 |
Values are the number of cases (%) or mean±SD.
ACC/AHA, American College of Cardiology/American Heart Association; BMI, body mass index; CABG, coronary artery bypass graft; CX, left circumflex artery; IRV, infarct-related vessel; LAD, left anterior descending artery; LM, left main artery; MI, myocardial infarction; PCI, percutaneous coronary intervention; RCA, right coronary artery.