Key result
High-density 3D right atrial mapping achieves 100% feasibility in standing horses.
Why the study?
Three-dimensional electroanatomical mapping is of potential interest in equine cardiology to identify arrhythmia mechanisms, characterize substrates, and guide ablation, but required description in standing horses.
Is high-density three-dimensional electroanatomical mapping of the right atrium feasible in the standing horse?
Is high-density three-dimensional electroanatomical mapping of the right atrium feasible in the standing horse?
High-density 3D electroanatomical mapping of the right atrium is feasible in standing horses, potentially enabling better characterization of equine arrhythmias without general anesthesia.
Feasibility of standing equine right atrial mapping shown; leaves open whether this advances arrhythmia characterization or management in clinical practice.
BACKGROUND: Three-dimensional electroanatomical mapping is of potential interest in equine cardiology to identify arrhythmia mechanisms, characterise electroanatomical substrates and guide ablation strategies. OBJECTIVES: To describe three-dimensional electroanatomical mapping in standing horses. STUDY DESIGN: Research methodology, proof of concept study. METHODS: HD Grid Mapping Catheter with EnSite VelocityTM, Abbott Medical) was used for endocardial mapping of the right atrium. The P-wave on the surface ECG was used as a timing reference for simultaneous local activation time- and bipolar voltage-mapping. For a positional reference a 10-pole catheter (Abbott Medical) was placed in the caudal vena cava. RESULTS: Endocardial right atrial mapping guided by the three-dimensional mapping system and local electrograms was successfully performed in all four horses. A median of 32719 [25499-65078] points, covering the entire right atrium, were collected. Three-dimensional electroanatomical mapping provided detailed information about activation patterns and electrogram-characteristics of the sinoatrial node, intervenous tubercle and cavotricuspid isthmus. Additionally, transvenous biopsy forceps connected to the mapping system were visualised on screen to guide biopsy collection. MAIN LIMITATIONS: The feasibility of electroanatomical mapping for the left atrium and in larger breeds requires further study. CONCLUSIONS: High-density three-dimensional electroanatomical mapping of the right atrium is feasible in the standing horse.
No takes yet. Share an insight, caveat, or question.
Hesselkilde et al. (2020) studied Healthy standing horses (proof of concept) (n=4). 3D electroanatomical mapping of the right atrium was evaluated on Feasibility of right atrial electroanatomical mapping in the standing horse. Endocardial right atrial mapping guided by the three-dimensional mapping system was successfully performed in all 4 standing horses.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: