Patient baseline characteristics and operative details
| Variable | ACE inhibitor treatment (n=33) | No ACE inhibitor treatment (n=107) | p Value |
|---|---|---|---|
| Values are n (%) or mean (SEM). | |||
| ACE, angiotensin converting enzyme. | |||
| Baseline characteristics | |||
| Men | 27 | 82 | |
| Women | 6 | 25 | |
| Age (years) | 64 (2) | 63 (1) | 0.73 |
| Body mass index (kg/m2) | 26.5 (0.4) | 28.4 (0.7) | 0.04 |
| Current smoker | 4 (13%) | 20 (19%) | 0.29 |
| Treated hypertension | 18 (55%) | 33 (31%) | 0.01 |
| Diabetes mellitus | 10 (30%) | 18 (17%) | 0.08 |
| Family history of coronary artery disease | 15 (46%) | 54 (51%) | 0.38 |
| Total cholesterol (mmol/l) | 4.8 (0.2) | 4.9 (0.1) | 0.74 |
| Low density lipoprotein (mmol/l) | 2.5 (0.2) | 2.6 (0.1) | 0.48 |
| High density lipoprotein (mmol/l) | 1.4 (0.1) | 1.3 (0.1) | 0.52 |
| Canadian Cardiovascular Society class | 2.6 (0.2) | 2.2 (0.1) | 0.11 |
| New York Heart Association class | 1.8 (0.1) | 1.8 (0.1) | 0.75 |
| Operative details | |||
| Mean number of grafts | 2.8 (0.1) | 2.8 (0.1) | 0.75 |
| Operation duration (minutes) | 190 (8) | 195 (3) | 0.49 |
| Cardiopulmonary bypass time (minutes) | 63 (3) | 66 (2) | 0.31 |
| Aortic cross clamp time (minutes) | 34 (3) | 32 (1) | 0.58 |
| Length of ventilation (hours) | 9.3 (0.9) | 10.3 (0.4) | 0.24 |
| Length of stay in intensive care unit (days) | 2.3 (0.5) | 2.3 (0.2) | 0.85 |
| Length of postoperative stay (days) | 7.0 (1.0) | 6.6 (0.4) | 0.64 |