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Significance of late ventricular potentials in myotonic dystrophy.

Authors
  • Babuty, D
  • Fauchier, L
  • Tena-Carbi, D
  • Poret, P
  • Leche, J
  • Raynaud, M
  • Fauchier, J P
  • Cosnay, P
Type
Published Article
Journal
The American Journal of Cardiology
Publisher
Elsevier
Publication Date
Nov 01, 1999
Volume
84
Issue
9
Identifiers
PMID: 10569675
Source
Medline
License
Unknown

Abstract

In 39 patients with myotonic dystrophy, we found a high percentage of infrahissian cardiac conduction abnormalities (51%) and late potentials (46%), whereas spontaneous and inducible ventricular arrhythmias were rare. These results suggest that the prolongation of QRSD and the duration of the low-amplitude signal on the signal-averaged electrocardiogram were related to delayed activation of the His and Purkinje tissue rather than true late potentials.

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