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[Slow excitation waves and mechanisms of polymorphic ventricular tachycardia in an experimental model: isolated walls of the right ventricle from rabbit and squirrel].

Publication ,  Journal Article
Kukushkin, NI; Sidorov, VI; Medvinskiĭ, AB; Romashko, DN; Burashnikov, AI; Baum, OV; Sarancha, DI; Starmer, CF
Published in: Biofizika
November 1998

The mechanism of polymorphic disturbances of the heart rhythm is studied on an experimental model, isolated ventricular preparations of ground squirrel and rabbit. Polymorphic arrhythmias are identified from habitus of the isolated preparation pseudoECGs mathematically derived from electrograms registered simultaneously at 32 endocardial and 32 epicardial points. The same electrograms allow one to visualize the excitation wave propagation along each of the preparation surfaces. The comparison of excitation wave pictures and corresponding pseudoECGs enabled us to reveal the conditions necessary and sufficient for polymorphism in heart rhythm disturbances. Polymorphic arrhythmias are due to changes in wave pictures in the regions of retarded excitation propagation.

Duke Scholars

Published In

Biofizika

ISSN

0006-3029

Publication Date

November 1998

Volume

43

Issue

6

Start / End Page

1043 / 1059

Related Subject Headings

  • Tachycardia, Ventricular
  • Sciuridae
  • Rabbits
  • Models, Biological
  • In Vitro Techniques
  • Heart Ventricles
  • Electrocardiography
  • Biophysics
  • Animals
  • 0299 Other Physical Sciences
 

Citation

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Kukushkin, N. I., Sidorov, V. I., Medvinskiĭ, A. B., Romashko, D. N., Burashnikov, A. I., Baum, O. V., … Starmer, C. F. (1998). [Slow excitation waves and mechanisms of polymorphic ventricular tachycardia in an experimental model: isolated walls of the right ventricle from rabbit and squirrel]. Biofizika, 43(6), 1043–1059.
Kukushkin, N. I., V Iu Sidorov, A. B. Medvinskiĭ, D. N. Romashko, A Iu Burashnikov, O. V. Baum, D Iu Sarancha, and C. F. Starmer. “[Slow excitation waves and mechanisms of polymorphic ventricular tachycardia in an experimental model: isolated walls of the right ventricle from rabbit and squirrel].Biofizika 43, no. 6 (November 1998): 1043–59.
Kukushkin NI, Sidorov VI, Medvinskiĭ AB, Romashko DN, Burashnikov AI, Baum OV, et al. [Slow excitation waves and mechanisms of polymorphic ventricular tachycardia in an experimental model: isolated walls of the right ventricle from rabbit and squirrel]. Biofizika. 1998 Nov;43(6):1043–59.
Kukushkin NI, Sidorov VI, Medvinskiĭ AB, Romashko DN, Burashnikov AI, Baum OV, Sarancha DI, Starmer CF. [Slow excitation waves and mechanisms of polymorphic ventricular tachycardia in an experimental model: isolated walls of the right ventricle from rabbit and squirrel]. Biofizika. 1998 Nov;43(6):1043–1059.

Published In

Biofizika

ISSN

0006-3029

Publication Date

November 1998

Volume

43

Issue

6

Start / End Page

1043 / 1059

Related Subject Headings

  • Tachycardia, Ventricular
  • Sciuridae
  • Rabbits
  • Models, Biological
  • In Vitro Techniques
  • Heart Ventricles
  • Electrocardiography
  • Biophysics
  • Animals
  • 0299 Other Physical Sciences