Incidence of atrial fibrillation 48 hours [clinicaltrials_resource:3748c2443f59d17c4b909937860a61d3]

to compare the effectiviness of intravenous administration of metoprolol and amiodarone in the prevention of atrial fibrillation after cardiac surgery

Incidence of atrial fibrillation 48 hours [clinicaltrials_resource:3748c2443f59d17c4b909937860a61d3]

to compare the effectiviness of intravenous administration of metoprolol and amiodarone in the prevention of atrial fibrillation after cardiac surgery