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  1. NoorZurani MH, Vicknasingam B, Narayanan S
    Drug Alcohol Rev, 2009 Nov;28(6):688-90.
    PMID: 19930027 DOI: 10.1111/j.1465-3362.2009.00128.x
    Methadone, a pharmacological agent used to treat heroin dependence is relatively safe, but may cause cardiac arrhythmias in the concurrent presence of other risk factors. APPROACH AND KEY FINDINGS: This case report highlights the risk of torsade de pointes, a life-threatening cardiac arrhythmia, in a heroin-dependent patient receiving methadone substitution therapy who was prescribed itraconazole for vaginal thrush. The patient presented to the accident and emergency department for chest discomfort and an episode of syncope following two doses of itraconazole (200 mg). Electrocardiogram monitoring at the accident and emergency department showed prolonged rate-corrected QT interval leading to torsade de pointes. The patient was admitted for cardiac monitoring, and electrocardiogram returned to normal upon discontinuation of methadone.
    Matched MeSH terms: Torsades de Pointes/physiopathology
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