Sinus arrest and beta blockade.
D000319:Adrenergic beta-Antagonists / Q000627:therapeutic use*; D006323:Heart Arrest / Q000209:etiology*; D006801:Humans; D007431:Intraoperative Complications; D008875:Middle Aged; D013249:Sternum / Q000601:surgery*
D000319:Adrenergic beta-Antagonists