What is the effect of metoprolol on death and cardiac events during a 2 year period after coronary artery bypass grafting?
The MACB Study Group found that metoprolol had a significant effect on death and cardiac events during a 2 year period after coronary artery bypass grafting. In their study, the group reported that patients who were treated with metoprolol had a lower mortality rate and a lower incidence of cardiac events compared to those who did not receive the drug. The group concluded that metoprolol is effective in reducing mortality and cardiac events after CABG.  