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Supports refined ECG diagnosis in conduction disorders; leaves open prospective validation of novel patterns.
Recognition of concealed conduction of the cardiac impulse is shown to be indispensable for the understanding of many cardiac arrhythmias. After a historical review of the concept of concealed conduction, records are presented to demonstrate established, as well as hitherto undescribed, aspects of concealed A-V conduction. Then, the manifestations of concealed intraventricular conduction are pointed out and, finally, the relationship of the phase of concealed conduction to the supernormal phase is discussed.
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Langendorf et al. (1956) studied this question.