Beta-blocking drugs in treatment of cariac arrhythmias during anasthesia.
D000319:Adrenergic beta-Antagonists / Q000627:therapeutic use; D000768:Anesthesia, General; D001145:Arrhythmias, Cardiac / Q000188:drug therapy*; D006801:Humans; D013565:Sympatholytics / Q000627:therapeutic use*
D000319:Adrenergic beta-Antagonists; D013565:Sympatholytics