| Item | Characteristic |
| Number | 40 |
| Gender Females/Males | 5/35 |
| Age (years, Mean ± SD) | 57 ± 3.9 |
| Time postoperative symptoms (days, Mean ± SD) | 32 ± 13 |
| Diabetes | 15 |
| Hypertension | 30 |
| Hypercholesterolemia | 29 |
| Increased serum triglyceride | 20 |
| Atherosclerosis | 18 |
| Obesity | 10 |
| Smoking | 15 |
| Previous myocardial infarction | 1 |