Macroscopic T-wave alternans may serve as an early warning sign for amiodarone-induced torsade de pointes, highlighting its potential for proarrhythmia monitoring.
May support TWA as early warning for amiodarone-induced TdP; leaves open prospective validation.
We report a case of macroscopic T-wave alternans occurring 30 min before the onset of amiodarone-induced torsade de pointes, illustrating a means to monitor for proarrhythmia.
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Kawaguchi et al. (2012) studied this question.
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