title: Chronic Chagas' heart block: acute hemodynamic alterations during surgically implanted internal pacemakers.
mesh_terms: D000328:Adult; D000368:Aged; D009202:Cardiomyopathies / Q000209:etiology*; D014355:Chagas Disease / Q000150:complications*; D002908:Chronic Disease; D004562:Electrocardiography; D005260:Female; D006327:Heart Block / Q000150:complications* / Q000601:surgery; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D007545:Isoproterenol / Q000494:pharmacology; D008297:Male; D008875:Middle Aged; D010138:Pacemaker, Artificial
chemical_list: D007545:Isoproterenol