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Herzschrittmachertherapie & Elektrophysiologie2013; 24(2); 84-91; doi: 10.1007/s00399-013-0260-z

The ECG in cardiovascular-relevant animal models of electrophysiology.

Abstract: The most frequently used animal species in experimental cardiac electrophysiology are mice, rabbits, and dogs. Murine and human electrocardiograms (ECGs) show salient differences, including the occurrence of a pronounced J-wave and a less distinctive T-wave in the murine ECG. Mouse models can resemble human cardiac arrhythmias, although mice differ from human in cardiac electrophysiology. Thus, arrhythmia mechanisms in mice may differ from those in humans and should be transferred to the human situation with caution. Further relevant cardiovascular animal models are rabbits, dogs, and minipigs, as they show similarities of cardiac ion channel distribution with the human heart and are suitable to study ventricular repolarization or pro- and antiarrhythmic drug effects. ECG recordings in large animals like goats and horses are feasible. Both goats and horses are a suitable animal model to study atrial fibrillation (AF) mechanisms. Horses frequently show spontaneous AF due to their high vagal tone and large atria. The zebrafish has become an important animal model. Models in "exotic" animals such as kangaroos may be suitable for particular studies.
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Publication Date: 2013-06-06 PubMed ID: 23740318DOI: 10.1007/s00399-013-0260-zGoogle Scholar: Lookup
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  • Journal Article

Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

This study discusses the use of various animal models in cardiac electrophysiology, highlighting the differences and similarities between the electrocardiograms (ECGs) of these animals and humans, and explores the potential implications for studying cardiac arrhythmias and drug effects.

Animal Models in Cardiac Electrophysiology

  • The research primarily discusses the use of mice, rabbits, and dogs in experimental cardiac electrophysiology. These animals are most frequently used due to their accessibility and the relative ease of experimentation.
  • The electrocardiograms (ECGs) of mice and humans are compared, with significant differences being noted. Particularly, mice have a pronounced J-wave and a less distinctive T-wave in their ECGs. Despite these differences, mouse models can still resemble human cardiac arrhythmias.
  • However, the study emphasizes that the differences in cardiac electrophysiology between mice and humans could lead to differences in arrhythmia mechanisms. Therefore, any findings from mouse models should be transferred to human applications cautiously.

Other Relevant Cardiovascular Animal Models

  • Rabbits, dogs, and minipigs are also highlighted as relevant cardiovascular animal models. These animals show similarities with human cardiac ion channel distribution and are thus suitable for studying ventricular repolarization as well as the effects of pro- and antiarrhythmic drugs.
  • Large animals such as goats and horses are suitable for ECG recordings and can be used to study mechanisms of atrial fibrillation (AF). Notably, horses often show spontaneous AF due to their high vagal tone and large atria which can provide valuable insight on AF mechanisms.
  • The zebrafish is mentioned as an important animal model, though the study does not provide details on its specific use or relevance.
  • Lastly, the study suggests the potential of “exotic” animal models such as kangaroos, though it does not elaborate on the specifics of their utility in cardiac electrophysiology studies.

In summary, the study presents a comprehensive review of the different animal models used in cardiac electrophysiology research. It underscores the importance of considering the physiological differences between these animals and humans when interpreting and extrapolating the results.

Cite This Article

APA
Kaese S, Frommeyer G, Verheule S, van Loon G, Gehrmann J, Breithardt G, Eckardt L. (2013). The ECG in cardiovascular-relevant animal models of electrophysiology. Herzschrittmacherther Elektrophysiol, 24(2), 84-91. https://doi.org/10.1007/s00399-013-0260-z

Publication

Herzschrittmachertherapie & Elektrophysiologie
ISSN: 1435-1544
NlmUniqueID: 9425873
Country: Germany
Language: English
Volume: 24
Issue: 2
Pages: 84-91

Researcher Affiliations

Kaese, Sven
  • Division of Electrophysiology, Department of Cardiovascular Medicine, University of Muenster, Muenster, Germany. sven.kaese@ukmuenster.de
Frommeyer, Gerrit
    Verheule, Sander
      van Loon, Gunther
        Gehrmann, Josef
          Breithardt, Günter
            Eckardt, Lars

              MeSH Terms

              • Animals
              • Arrhythmias, Cardiac / diagnosis
              • Arrhythmias, Cardiac / physiopathology
              • Disease Models, Animal
              • Dogs
              • Electrocardiography / methods
              • Goats
              • Heart Conduction System / physiopathology
              • Heart Rate
              • Horses
              • Humans
              • Mice
              • Rabbits
              • Species Specificity
              • Swine
              • Swine, Miniature

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