title: Transitory complete atrioventricular block associated to ingestion of Nerium oleander.
abstract: BACKGROUND
  Self-medication with plants can lead to severe poisoning. Oleander (Nerium oleander) is an ornamental plant whose toxicity to man is due to a mixture of nondigitalis cardiac glycosides. The clinical manifestations of oleander poisoning combine cardiac and gastrointestinal symptoms, and are similar to those of a digitalis overdose.
  
  
  METHODS
  Following the ingestion of tea made of the leaves of oleander, a 33-year-old woman developed dizziness, vomiting and abdominal cramps as main symptoms, and complete atrioventricular block that reverted within 24 hours. She remained with bradycardia, dizziness and diarrhea for about 6 days. On admission she had a serum potassium of 6.7 mEq/L and a serum creatinine of 2.3 mg%, that progressively returned to normal levels.
  
  
  CONCLUSIONS
  Clinicians must include oleander poisoning in the differential diagnosis of bradyarrhythmias, particularly in children and young people without known cardiovascular disease, in areas where this plant either is used as a herbal medicine or is known as poisonous.
authors.affiliation: Centro de Ciências Biomédicas, Universidade Federal de Uberlândia, MG, Brasil.
authors.forename: S de A
authors.initials: Sde A
authors.lastname: Nishioka
authors.forename: E S
authors.initials: ES
authors.lastname: Resende
mesh_terms: D000328:Adult; D001919:Bradycardia / Q000209:etiology; D004071:Digitalis Glycosides / Q000506:poisoning; D005260:Female; D006327:Heart Block / Q000209:etiology*; D006801:Humans; D010939:Plant Poisoning; D010947:Plants, Toxic; D011188:Potassium / Q000097:blood
chemical_list: D004071:Digitalis Glycosides; D011188:Potassium