TABLE 2.
Preoperative Demographic Variables and Risk Factors in White Patients (N=843) With and Without a PMI After Primary CABG Surgery
| Patient Demographics and Preoperative Risk Factors [% (n)] |
PMI (N=88) |
No PMI (N=755) |
P Value |
|---|---|---|---|
| Age, y | 64±11 | 65±10 | 0.48 |
| Female gender | 26 (23) | 21 (161) | 0.34 |
| Weight, kg | 87±16 | 88±19 | 0.61 |
| Height, cm | 172±10 | 173±10 | 0.12 |
| Body mass index, kg/m2 | 30±5.0 | 29±5.5 | 0.63 |
| Diabetes mellitus type I | 7 (6) | 10 (77) | 0.45 |
| Diabetes mellitus type II | 20 (18) | 21 (159) | 0.42 |
| Hyperlipidemia | 75 (65) | 76 (574) | 0.79 |
| History of smoking | 69 (61) | 71 (531) | 0.81 |
| Pulmonary disease | 8 (7) | 17 (123) | 0.04 |
| Renal disease | 7 (6) | 8 (58) | 0.99 |
| Hypertension | 81 (71) | 76 (573) | 0.42 |
| Prior myocardial infarction | 51 (45) | 45 (337) | 0.26 |
| Angina | 7(6) | 9 (68) | 0.69 |
| Anemia | 9 (8) | 8 (60) | 0.68 |
| Coagulopathy | 1 (1) | 2 (14) | 0.99 |
| Previous percutaneous transluminal coronary angioplasty |
20 (18) | 21 (157) | 0.99 |
| Atrial fibrillation | 8 (8) | 5 (41) | 0.33 |
| Other dysrhythmias | 2 (2) | 6 (42) | 0.19 |
| Valvular disease | 0 (0) | 0.3 (2) | 0.99 |
| Carotid disease | 2 (2) | 4 (33) | 0.57 |
| Left Ventricular ejection fraction <30% | 10 (88) | 19 (142) | 0.21 |
| Urgency of operation—elective | 36 (31) | 45 (339) | 0.17 |
| ≥3 coronary vessels with stenosis >50% |
14 (12) | 16 (120) | 0.76 |
| Peripheral vascular disease | 8 (6) | 10 (54) | 0.83 |
| Transient ischemic attack | 1 (1) | 3 (22) | 0.50 |
| Stroke | 6 (5) | 5 (35) | 0.60 |
| Gastrointestinal disease | 19 (17) | 15 (115) | 0.36 |
| History of malignancy | 16 (14) | 9 (70) | 0.06 |
| Hepatic disease | 8 (7) | 6 (42) | 0.34 |
| Preoperative medications | |||
| β-blockers | 89 (78) | 77 (582) | 0.01 |
| Aspirin | 81 (71) | 75 (565) | 0.29 |
| Antiarrhythmics | 2 (2) | 4(27) | 0.76 |
| Angiotensin-converting enzyme inhibitors | 49 (43) | 46 (347) | 0.65 |
| Ca2+ channel blockers | 8 (7) | 15 (110) | 0.10 |
| Diuretics | 22 (19) | 22 (166) | 0.99 |
| Intravenous inotropes | 3 (3) | 4 (27) | 0.99 |
| Nonaspirin platelet inhibitors | 26 (23) | 17 (127) | 0.04 |
| Vasodilators | 26 (23) | 13 (99) | 0.002 |
| Warfarin or heparin | 40(35) | 28 (214) | 0.04 |
| Statins | 68 (60) | 74 (560) | 0.25 |
| Nonstatin antihyperlipidemics | 13 (11) | 6 (47) | 0.04 |
| Intraaortic balloon pump | 5 (4) | 2 (16) | 0.15 |
Mean±SD.