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September 19, 2025Journal of Veterinary Internal MedicineOpen Access

Multiple Catheter Recording in Horses to Investigate Atrial Depolarization Pattern During Sinus Rhythm and Induced Premature Atrial Complexes

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Authors

EBEva BuschmannGSGlenn Van SteenkisteIVIngrid Vernemmen

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Overview

Experimental study reveals activation patterns during atrial pacing and sinus rhythm, suggesting insights on ectopy origins.

Key Points

  • Characteristic activation patterns were identified during sinus rhythm and pacing, aiding diagnosis.
  • His signals were successfully recorded in 5 out of 8 horses during the mapping process.
  • Atrial effective refractory periods varied significantly between horses, ranging from 170 to 420 ms.
  • Electrophysiological studies with catheter recordings are feasible in horses, indicating potential for clinical applications.

Cite This Study

Buschmann et al. (2025) studied this question.

synapsesocial.com/papers/68d436ef713b0b5dfea76184https://doi.org/10.1111/jvim.70218
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Also Consider

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

  1. 1Three‐dimensional electro‐anatomical mapping of premature atrial complexes originating from the right atrial free wall and treatment by radiofrequency ablation in three horses2025
  2. 2Machine-learning analysis of paced P-wave morphologies to identify atrial ectopy origin in atrial fibrillation patients2026
  3. 3Biatrial activation patterns and hemodynamics during Bachmann bundle pacing: learnings from a porcine model2026
  4. 4Standardized Protocol for Comprehensive, Non-Invasive Phenotyping of Atrial Myopathy in Sprague-Dawley Rat Models of Metabolic Syndrome Using Clinical-Grade Echocardiography and Electrophysiology Systems2026
  5. 5Practical safety thresholds for pulsed-field ablation near the sinus node and his bundle: an in vivo swine study2026