Highlights that atypical cases of ventricular preexcitation require electrophysiologic studies and questions the universal role of Kent bundles as the accessory pathway.
Atypical preexcitation may warrant electrophysiologic mapping; leaves open the anatomic substrate of accessory pathways in WPW.
Typical cases of ventricular preexcitation by conduction through an accessory pathway are easily recognized on electrocardiograms, but atypical cases require electrophysiologic studies. Recent investigations cast doubt on the long-held assumption that Kent bundles invariably form the accessory pathway.
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Massumi et al. (1973) studied this question.
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