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The Defibrillation Waveform

  • Susan M. Blanchard
  • Raymond E. Ideker
  • Randolph A. S. Cooper
  • J. Marcus Wharton
Chapter
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Part of the Developments in Cardiovascular Medicine book series (DICM, volume 188)

Abstract

THE EFFICACY of the shock used for internal defibrillation depends upon the shape of the defibrillation waveform as well as the placement of the defibrillation electrodes and the sequence in which shocks are delivered. The waveform shape also has a direct bearing on the lifetime of the battery used in an ICD since battery and capacitor size are the main determinants in the development of small, efficient devices.1 Much work is being done to diminish the energy requirements for defibrillation without reducing the effectiveness of the ICD by using more effective waveforms. Reducing the energy required for defibrillation could also lead to fewer instances of adverse effects, such as conduction disturbance,2 ventricular dysfunction,3 and myocardial necrosis,4,5 which occur when myocardium is exposed to high energy shocks.

Keywords

Defibrillation Threshold Biphasic Waveform Ventricular Defibrillation Monophasic Waveform Defibrillation Efficacy 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1996

Authors and Affiliations

  • Susan M. Blanchard
  • Raymond E. Ideker
  • Randolph A. S. Cooper
  • J. Marcus Wharton

There are no affiliations available

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