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  • Title: Transitory complete atrioventricular block associated to ingestion of Nerium oleander.
    Author: Nishioka Sde A, Resende ES.
    Journal: Rev Assoc Med Bras (1992); 1995; 41(1):60-2. PubMed ID: 7550418.
    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. CASE REPORT: 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. CONCLUSION: 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.
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