Variability of defibrillation energy in HEARTSIM

Nitish V. Thakor, Rose A. Province, Matthew G. Fishler, Robert Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A three-dimensional computer model of the heart, HEARTSIM, is presented to examine the nature of variability of defibrillation threshold. The effects of a) single monophasic and biphasic shock pulses and b) shock timing are studied. The computer simulations show that the defibrillation threshold is highly variable from moment-to-moment during fibrillation. Repeated defibrillation trials result in a defibrillation energy versus success rate curve that is roughly sigmoidal in shape. This curve shows a shift towards lower energy requirement with biphasic pulses and with shorter duration fibrillation episodes.

Original languageEnglish (US)
Title of host publicationProceedings of the Annual Conference on Engineering in Medicine and Biology
PublisherPubl by IEEE
Pages625-626
Number of pages2
Editionpt 2
ISBN (Print)0780302168
StatePublished - Dec 1 1991
Externally publishedYes
EventProceedings of the 13th Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Orlando, FL, USA
Duration: Oct 31 1991Nov 3 1991

Publication series

NameProceedings of the Annual Conference on Engineering in Medicine and Biology
Numberpt 2
Volume13
ISSN (Print)0589-1019

Other

OtherProceedings of the 13th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
CityOrlando, FL, USA
Period10/31/9111/3/91

ASJC Scopus subject areas

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics

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