Patients | ELCA (%) (n=151) | BA (%) (n=157) | Relative risk (95% CI) | p value |
---|---|---|---|---|
Primary clinical end point | 50/151 (33.1%) | 47/158 (29.9%) | 1.11 (0.80 to 1.54) | 0.55 |
Clinical variables | ||||
Male | 37/115 (32.1%) | 32/114 (28.1%) | 1.15 (0.77 to 1.70) | 0.50 |
Female | 13/36 (36.1%) | 15/43 (34.9%) | 1.04 (0.57 to 1.88) | 0.91 |
⩾70 years | 11/25 (44.0%) | 11/28 (39.3%) | 1.12 (0.59 to 2.12) | 0.73 |
<70 years | 39/126 (30.9%) | 36/129 (27.9%) | 1.11 (0.76 to 1.62) | 0.59 |
Diabetes | 6/15 (40.0%) | 7/20 (35.0%) | 1.14 (0.48 to 2.70) | 0.76 |
Hypertension | 21/57 (36.8%) | 17/50 (34.0%) | 1.08 (0.65 to 1.81) | 0.76 |
Hypercholesterolemia | 23/58 (39.7%) | 18/59 (30.6%) | 1.30 (0.79 to 2.14) | 0.30 |
Smoking status | ||||
Never | 15/41 (36.6%) | 15/50 (30.0%) | 1.22 (0.68 to 2.19) | 0.51 |
Previous | 25/74 (33.8%) | 23/68 (33.8%) | 1.00 (0.63 to 1.58) | 1.00 |
Current | 7/33 (21.2%) | 7/34 (20.6%) | 1.03 (0.41 to 2.62) | 0.95 |
History of MI | 22/70 (31.4%) | 24/68 (35.3%) | 0.89 (0.56 to 1.43) | 0.63 |
History of BA | 3/16 (18.8%) | 4/25 (16.0%) | 1.17 (0.30 to 4.56) | 1.00 |
History of CABG | 3/10 (30.0%) | 2/13 (15.4%) | 1.95 (0.40 to 9.54) | 0.62 |
Exertional angina | ||||
CCS class I+II | 16/56 (28.6%) | 15/58 (25.9%) | 1.10 (0.61 to 2.02) | 0.75 |
CCS class III+IV | 34/95 (35.8%) | 32/99 (32.3%) | 1.11 (0.75 to 1.64) | 0.61 |
Extent of coronary artery disease | ||||
Monovessel | 27/83 (32.5%) | 22/79 (27.8%) | 1.17 (0.73 to 1.87) | 0.52 |
Multivessel | 23/68 (33.8%) | 25/78 (32.1%) | 1.06 (0.66 to 1.68) | 0.82 |
Lesions | n=158 | n=167 | ||
Primary clinical end point | 52/158 (32.9%) | 51/167 (30.6%) | 1.08 (0.78 to 1.48) | 0.65 |
Angiographic variables | ||||
Location of lesion | ||||
LAD | 25/61 (40.9%) | 26/64 (40.6%) | 1.01 (0.66 to 1.54) | 0.97 |
RCA | 15/56 (26.8%) | 19/61 (31.2%) | 0.86 (0.49 to 1.52) | 0.60 |
LCx | 12/41 (29.3%) | 6/42 (14.3%) | 2.05 (0.85 to 4.94) | 0.08 |
Type of lesion | ||||
B2 | 30/83 (36.1%) | 23/71 (32.4%) | 1.12 (0.72 to 1.73) | 0.63 |
C | 22/74 (29.7%) | 27/94 (28.7%) | 1.04 (0.64 to 1.66) | 0.89 |
Ulcerated | 17/53 (32.1%) | 15/55 (27.3%) | 1.18 (0.66 to 2.11) | 0.58 |
Calcified | 9/33 (27.3%) | 10/39 (25.6%) | 1.06 (0.49 to 2.30) | 0.88 |
Eccentric | 30/100 (30.0%) | 33/104 (31.7%) | 0.95 (0.63 to 1.43) | 0.79 |
Tandem | 9/18 (50.0%) | 3/26 (11.5%) | 4.33 (1.36 to 13.83) | 0.01 |
Estimated lesion length | ||||
10 to 20 mm | 39/122 (31.9%) | 35/109 (32.1%) | 1.00 (0.68 to 1.45) | 0.98 |
>20 mm | 12/33 (36.4%) | 11/44 (25.0%) | 1.45 (0.74 to 2.88) | 0.28 |
Grade of perfusion | ||||
0 + I | 15/49 (30.6%) | 12/54 (22.2%) | 1.38 (0.72 to 2.65) | 0.33 |
II + III | 37/109 (33.9%) | 39/113 (34.5%) | 0.98 (0.68 to 1.42) | 0.93 |
Quantitative variables | ||||
Reference diameter (mm) | ||||
⩽2.5 | 26/76 (34.2%) | 35/88 (39.7%) | 0.86 (0.58 to 1.29) | 0.46 |
>2.5 | 23/66 (34.8%) | 13/63 (20.6%) | 1.69 (0.94 to 3.03) | 0.07 |
Length (mm) | ||||
<20 | 25/79 (31.6%) | 24/73 (32.9%) | 0.96 (0.61 to 1.53) | 0.87 |
⩾20 | 12/35 (34.3%) | 14/50 (28.0%) | 1.22 (0.64 to 2.33) | 0.54 |
Diameter stenosis (%) | ||||
⩽70 | 30/98 (30.6) | 35/106 (33.0%) | 0.93 (0.62 to 1.39) | 0.71 |
70 to 90 | 7/18 (38.9%) | 4/18 (22.2%) | 1.75 (0.62 to 4.95) | 0.28 |
>90 | 15/42 (35.7%) | 12/43 (27.9%) | 1.28 (0.68 to 2.40) | 0.44 |
Primary clinical end point: death, myocardial infarction (MI), coronary artery bypass grafting (CABG), repeat angioplasty; CCS, angina classification according to the Canadian Cardiovascular Society classification system;12 LAD, left anterior descending coronary artery; RCA, right coronary artery; LCx, left circumflex coronary artery; Type of lesion, according to the modified ACC/AHA Task Force criteria;13 Grade of perfusion, according to the TIMI study group.10