The Effects of Potassium on Anisotropic Conduction

  • Lucas V. A. Boersma
  • Josep Brugada
  • Charles J. H. J. Kirchhof
  • Maurits A. Allessie
Part of the Developments in Cardiovascular Medicine book series (DICM, volume 121)


A cryo-technique was used to create a thin layer of perfused anisotropic epicardium in Langendorff perfused rabbit hearts. The heart was stimulated with a frequency of 0.5 Hz and the extracellular concentration of K+ was gradually increased. The resulting effects on anisotropic conduction were studied by using a high resolution mapping system. In this setting, no preferential effect of K+ on the ratio of anisotropy or on the occurrence of local conduction block could be detected.


Conduction Velocity Fiber Orientation Extracellular Concentration Conduction Block Anisotropic Conduction 
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Copyright information

© Springer Science+Business Media Dordrecht 1991

Authors and Affiliations

  • Lucas V. A. Boersma
  • Josep Brugada
  • Charles J. H. J. Kirchhof
  • Maurits A. Allessie

There are no affiliations available

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