[Torsades de pointes during methadone treatment].
نویسندگان
چکیده
Methadone is a synthetic opioid that has been used successfully to treat heroin addiction and chronic pain. It is usually well tolerated and has few side effects. Recently, an association with torsade de pointes has been reported. We present 4 cases of torsade de pointes during methadone treatment.
منابع مشابه
Dose-Dependent Effects of Methadone on QT interval in Patients under Methadone Maintenance Treatment
Background: The role of methadone in QTc prolongation, Torsades de Pointes (TdP) arrhythmia and sudden cardiac death has been debated. Because of widespread use of methadone in methadone maintenance treatment (MMT) centers, we aimed to study dose-related effects of methadone on QTc prolongation. Methods: In a comparative observational study, 90 patients who were under MMT were evaluated. Patien...
متن کاملMethadone-induced torsades de pointes: a twist of fate.
A case of methadone-induced torsades de pointes is presented to demonstrate clinical features that predispose patients to this serious cardiac arrhythmia. A patient who was receiving methadone maintenance treatment for heroin addiction presented to the hospital with dizziness and near-syncope. He was taking a relatively high dose of methadone but was not taking any concomitant cytochrome P450 i...
متن کاملMethadone induced torsades de pointes and ventricular fibrillation: A case review
BACKGROUND Methadone is a synthetic opioid, which has been successfully used in treating heroin addiction and chronic pain syndrome in palliative care for more than 30 years. This drug is a potent blocker of the delayed rectifier potassium ion channel, which may result in corrected QT (QTc) interval prolongation and increased risk of torsades de pointes (TdP) in susceptible individuals. CASE ...
متن کاملMethadone-induced Torsades de pointes.
Torsades de pointes is a polymorphic ventricular tachycardia that can quickly evolve into ventricular fibrillation and sudden death. This arrhythmia often occurs secondary to medication- induced cardiac repolarization dysfunction with resultant prolonged QTc interval on ECG. Numerous medications can predispose patients to this deadly tachycardia. We report a case of methadone-induced Torsades d...
متن کاملTorsade de pointes associated with very-high-dose methadone.
BACKGROUND Methadone is an effective treatment for opioid dependency and chronic pain. A methadone derivative, levacetylmethadol, was withdrawn from the European market after being associated with torsade de pointes. To date, no association between methadone and this arrhythmia has been described. OBJECTIVE To evaluate a series of methadone-treated patients experiencing torsade de pointes. ...
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عنوان ژورنال:
- Revista espanola de cardiologia
دوره 58 10 شماره
صفحات -
تاریخ انتشار 2005