Beta blockers are equally effective after a Q wave or non-Q wave MI

Analysis of data from 201,752 patients with a myocardial infarction (MI) demonstrates that the reduction in mortality at two years with beta blockers is similar in those with a Q wave (14.2 versus 23.6 percent for those not receiving beta blockers) or non-Q wave MI (14.4 versus 23.9 percent).