STEVEN R. LEVINE, M.D.
To the editor: Smith and Gallagher (1) cite in their review the patient of Loeb and colleagues (2) as an example of torsade de pointes caused by hypomagnesemia alone. The paper to which they refer describes two patients who presented with ventricular fibrillation associated with hypomagnesemia. The electrocardiogram from Case 1 shows segments of ventricular tachycardia typical of torsade de pointes, but to attribute the arrhythmia to hypomagnesemia alone ignores several other potentially contributing factors. The patient was admitted because of convulsions that followed several weeks of excessive intake of alcohol and malnutrition. Physical examination showed aortic insufficiency. In addition,
LEVINE SR. Torsades de Pointes. Ann Intern Med. ;94:276–277. doi: 10.7326/0003-4819-94-2-276
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Published: Ann Intern Med. 1981;94(2):276-277.
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