Four patients (3 men, 1 woman) with no known history of heart disease were seen in the emergency room for syncopal episodes (Table). All were under longterm methadone therapy, although only 1 was receiving >200 mg/day. Three of these patients were infected with human immunodeficiency virus (HIV), but only 1 was on antiretroviral therapy. The electrocardiographic recordings and monitoring showed...

A case is reported of electrocardiographic QT prolongation that was presumbty familial in origin. Torsades de points developed in association with the use ofdothinepin, despite the pmscription of a low dose of this drug.

Cardiac and cerebrovascular illnesses are among the leading causes of mortality and morbidity today. Thromboembolic cases, which are the result of cardiac arrhythmia, are one of the important causes of cerebral stroke. However, various abnormalities, especially ST-T wave changes on electrocardiography can be seen in patients who do not have any heart disease history but had ischemic cerebral st...

A healthy 22 year old male with no history of cardiac disease was admitted with severe community acquired pneumonia that was initially treated with moxifloxacin and azithromycin. At admission, he was found to be hypokalemic and hypomagnesemic. Two days after admission, he experienced several episodes of Torsades de Pointes (TdP). He was initially treated with isoproterenol. A temporary transven...

Drug-induced torsades de pointes (TdP) remains a significant public health concern that has challenged scientists who have the responsibility of advancing new medicines through development to the patient, while assuring public safety. As a result, from the point of discovering a new molecule to the time of its registration, significant efforts are made to recognize potential liabilities, includ...

Torsades de pointes is a potentially lethal arrhythmia that occasionally appears as an adverse effect of pharmacotherapy. Recently developed understanding of the underlying electrophysiology allows better estimation of the drug-induced risks and explains the failures of older approaches through the surface ECG. This article expresses a consensus reached by an independent academic task force on ...

A case of fatal torsade de pointes in a 53 year old patient treated with disopyramide is described. The arrhythmia followed the development of acute hepatocellular dysfunction and may have been due to failure of the liver to efficiently degrade the drug to its metabolites.

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