Characteristics of the 25 Group 1 Patients, Who Received Magnesium in the Cardioplegic Solution, Compared With Those of the 25 Group 2 (Control Group) Patients, Who Did Not Receive Magnesium in the Cardioplegic Solution
| Variable | Group 1 | Group 2 |
|---|---|---|
| Mean (and SD) age, yr | 67.2 (8.3) | 64.9 (6.7) |
| Sex, M/F | 16/9 | 17/8 |
| Mean (and SD) ejection fraction, % | 67.3 (15.2) | 64.5 (13.4) |
| Mean (and SD) clamp time, min | 50.2 (4.6) | 49.5 (3.5) |
| Patients with previous myocardial infarction, no. (%) | 20 (80) | 18 (72) |
| Mean (and SD) vessels bypassed, no. | 3.5 (0.26) | 3.1 (0.7) |
| Mean (and SD) pump time, min | 75.8 (1.9) | 71.2 (1.5) |
| Patients taking calcium blockers, no. (%) | 22 (88) | 21 (84) |
| Patients taking beta blockers, no. (%) | 19 (76) | 17 (68) |