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June 1, 1969Circulation ResearchOpen Access

Electrical Potential Distribution Surrounding the Atria during Depolarization and Repolarization in the Dog

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Population

Intact dogs with created heart block

Design

Preclinical

Authors

MSMadison S. SpachPediatric / Congenital CardiologyTKTerry D. KingOchsner Health SystemRBRoger C. BarrNational Institutes of Health

Discussion

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Implication

Does not inform clinical arrhythmia management; leaves open translation of canine atrial activation-repolarization coupling to human disease.

Structured PICO

P
Population
Intact dogs with created heart block
I
Intervention
Implantation of 30 to 40 miniature electrodes permanently on each atrium to record unipolar electrograms and produce atrial isopotential heart maps
O
Outcome
Potential distribution at the atrial surface during depolarization and repolarizationsurrogate

This preclinical study mapped the electrical potential distribution of the atria in dogs, demonstrating that repolarization follows the same general spatial pattern as excitation spread.

Cite This Study

Spach et al. (1969) studied this question.

synapsesocial.com/papers/6a156b459b87f33fc69f8a2chttps://doi.org/10.1161/01.res.24.6.857
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Spread of Electrical Activity Through the Wall of the Ventricle1953 · 129 citations
  2. 2EXPERIMENTS ON THE ORIGIN AND CONDUCTION OF THE CARDIAC IMPULSE1916 · 58 citations
  3. 3Electrophysiology of the Heart1962 · 74 citations
  4. 4Spread of Excitation from the Sinus Node1965 · 173 citations
  5. 5Specialized Conducting Fibers in the Interatrial Band1966 · 139 citations