Use of beta-blockers during and after myocardial infarction.

Patients (especially older patients) with acute myocardial infarction (MI) treated with or without thrombolytic therapy, who have no contraindications to beta-blockers, should be treated with early intravenous beta-blockade. High-risk subgroups of patients after MI are most likely to benefit from the use of beta-blockers after MI.