Reverse alternating Wenckebach periodicity |
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Authors: | M L Young H Gelband A Castellanos G S Wolff |
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Institution: | Division of Pediatric Cardiology, Department of Pediatrics, University of Miami School of Medicine, Miami, Florida, USA |
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Abstract: | An atrial pacing-induced reverse conduction pattern of the alternating Wenckebach periodicity was observed in 5 of 42 children (12%) during electrophysiologic study. This conduction pattern is a reverse of the usual alternating Wenckebach periodicity: During an underlying 2:1 atrioventricular conduction block there is progressive shortening of the conduction time of the conducted impulses with termination in a lower degree of block. This reverse alternating Wenckebach periodicity may be caused by a mechanism similar to that in other Wenckebach phenomena. |
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