title: Atropine-resistant bradycardia due to hyperkalaemia.
abstract: Symptomatic sinus bradycardia is routinely treated in the emergency department with atropine and pacing. Two cases are presented that illustrate the importance of considering hyperkalaemia, particularly in the presence of atropine-resistant symptomatic bradycardia. The administration of calcium in such cases acts to stabilise the myocardium and resolve the bradycardia. Blood gas analysis provides a rapid estimate of serum potassium concentrations, facilitating timely treatment.
authors: Emergency Department, Bristol Royal Infirmary, Marlborough Street, Bristol, UK. tobyslade@hotmail.com
authors: T J
authors: TJ
authors: Slade
authors: J
authors: J
authors: Grover
authors: J
authors: J
authors: Benger
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000889:Anti-Arrhythmia Agents / Q000627:therapeutic use*; D001285:Atropine / Q000627:therapeutic use*; D001919:Bradycardia / Q000188:drug therapy* / Q000209:etiology*; D004351:Drug Resistance; D004562:Electrocardiography; D006801:Humans; D006947:Hyperkalemia / Q000150:complications*; D008297:Male
chemical_list: D000889:Anti-Arrhythmia Agents; D001285:Atropine