Table 3 Baseline characteristics of BIMA patients stratified by use of left versus right IMA to revascularize the LAD (left part of table), and by choice of non-LAD target (RCA vs. circumflex) for the second IMA (right part of table)
Variable (% unless otherwise indicated) | RIMA-LAD | LIMA-LAD | pvalue | 2nd IMA-Cx | 2nd IMA-RCA | pvalue |
|---|---|---|---|---|---|---|
n = 234 | n = 1,743 | n = 650 | n = 1,239 | |||
Age (mean years ± SD) | 54.1 ± 8.7 | 55.6 ± 8.5 | 0.06 | 55.8 ± 8.4 | 55.4 ± 8.5 | 0.31 |
Female | 10.8 | 11.0 | 0.9 | 10.7 | 11.1 | 0.88 |
BMI (mean kg/m2 ± SD) | 27.3 ± 3.8 | 27.1 ± 3.7 | 0.83 | 27.3 ± 3.8 | 27.2 ± 3.6 | 0.65 |
Diabetes mellitus | 13.8 | 12.2 | 0.49 | 13.7 | 12.5 | 0.52 |
Insulin-dependent | 18.5 | 21.5 | 1.0 | 18.7 | 22.9 | 0.51 |
Renal failure | 5.1 | 3.2 | 0.15 | 2.1 | 3.0 | 0.07 |
Previous MI | 45.9 | 51.0 | 0.2 | 43.7 | 47.8 | 0.24 |
Hypertension | 44.9 | 50.1 | 0.18 | 55.2 | 56.1 | 0.19 |
Active smoking | 33.2 | 32.0 | 0.74 | 30.4 | 33.0 | 0.29 |
COPD | 5.6 | 6.2 | 0.88 | 6.7 | 5.6 | 0.46 |
Peripheral vascular disease | 8.2 | 8.9 | 0.79 | 9.9 | 8.5 | 0.34 |
Previous stroke | 2.0 | 3.3 | 0.39 | 2.3 | 3.6 | 0.13 |
LVEF ≤ 35% | 3.6 | 3.9 | 1.0 | 4.8 | 3.4 | 0.15 |
CHF NYHA class III or IV | 19.5 | 18.0 | 0.62 | 15.5 | 17.3 | 0.55 |
Atrial fibrillation | 2.6 | 1.4 | 0.22 | 1.5 | 1.3 | 0.83 |
Three-vessel disease | 56.1 | 58.9 | 0.44 | 56.8 | 64.9 | 0.08 |
Parsonnet score (mean ± SD) | 1.3 ± 0.9 | 1.4 ± 0.9 | 0.76 | 1.4 ± 1.0 | 1.3 ± 0.9 | 0.12 |
EuroSCORE (mean ± SD) | 1.6 ± 1.4 | 1.9 ± 2.8 | 0.06 | 2.0 ± 2.9 | 1.9 ± 2.6 | 0.44 |