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The signal averaged ECG in patients with cardiomyopathy

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Signal Averaged Electrocardiography

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Abstract

Signal averaged electrocardiography has an established prognostic value in patients with coronary artery disease. The role of signal averaged ECGs in patients with various forms of nonischemic cardiomyopathy is less clear. This may reflect differences in the electrophysiological substrates, mechanisms of arrhythmogenesis, or modes of death between these two groups of patients. This chapter will primarily focus on nonischemic dilated cardiomyopathies and summarize information available on the usefulness of signal averaged electrocardiograms in this disease. We will first describe the anatomic and electrophysiological substrates for ventricular arrhythmias in the absence of coronary disease and their relationship to the signal averaged ECG. Then, we wille valuate the relationship between signal averaged ECG findings and the response to programmed electrical stimulation and their prognostic value for identifying the risk of arrhythmogenesis in these patients. Finally, we will review information available on the usefulness of the signal averaged ECG in other specific primary (hypertrophic cardiomyopathy and arrhythmogenic right ventricular dysplasia) and secondary cardiac disease states.

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Authors
  1. John K. Finkle
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  2. Francis E. Marchlinski
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Editors and Affiliations

  1. The Mount Sinai School of Medicine of CUNY, USA

    J. Anthony Gomes (Professor of Medicine, Director) (Professor of Medicine, Director)

  2. Section of Electrocardiography and Electrophysiology, Mount Sinai Medical Center, New York, USA

    J. Anthony Gomes (Professor of Medicine, Director) (Professor of Medicine, Director)

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© 1993 Springer Science+Business Media Dordrecht

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Finkle, J.K., Marchlinski, F.E. (1993). The signal averaged ECG in patients with cardiomyopathy. In: Gomes, J.A. (eds) Signal Averaged Electrocardiography. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-0894-2_18

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  • DOI: https://doi.org/10.1007/978-94-011-0894-2_18

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-4386-1

  • Online ISBN: 978-94-011-0894-2

  • eBook Packages: Springer Book Archive

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