Feasibility of transthoracic echocardiographic guidance for multicatheter electrophysiological mapping studies in horses.
Authors: Vernemmen Ingrid, Buschmann Eva, Demeyere Marie, Verhaeghe Lize-Maria, Van Steenkiste Glenn, Decloedt Annelies, van Loon Gunther
Journal: Journal of veterinary internal medicine
Summary
# Editorial Summary: Transthoracic Echocardiographic Guidance for Equine Electrophysiological Mapping Catheter-based electrophysiological mapping offers superior diagnostic capability for characterising cardiac arrhythmias in horses, yet its clinical application has remained limited by the lack of real-time imaging to guide catheter placement with sufficient precision. Belgian researchers evaluated whether transthoracic echocardiography could provide adequate visualisation during multicatheter mapping procedures, testing the feasibility of this approach in a clinical setting. The technique successfully enabled continuous catheter tracking and accurate electrode positioning within the cardiac chambers, demonstrating that ultrasound guidance is both technically feasible and practical for multicatheter studies without requiring expensive 3D mapping systems. This finding is significant for equine practitioners because it substantially lowers the technical and financial barriers to performing detailed electrophysiological investigations—work previously restricted to highly specialised centres—potentially improving diagnosis and treatment of performance-limiting and life-threatening arrhythmias. For veterinarians managing horses with unexplained syncope, poor performance, or suspected electrical abnormalities, wider access to catheter mapping guided by standard echocardiographic equipment could transform diagnostic accuracy and inform targeted interventions including radiofrequency ablation.
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Practical Takeaways
- •Echocardiography-guided catheterization may enable more equine veterinarians to perform diagnostic electrophysiological studies without expensive 3D mapping equipment
- •This feasibility work could improve diagnosis and treatment planning for horses with problematic arrhythmias
- •Minimally invasive catheterization guidance represents a practical advancement for equine cardiac specialist practice
Key Findings
- •Transthoracic echocardiographic guidance provides real-time visualization for catheter positioning in equine cardiac mapping studies
- •This minimally invasive approach offers an alternative to 3D mapping systems for characterizing arrhythmias in horses
- •The technique addresses previous limitations in continuous catheter guidance using conventional imaging modalities in equine cardiology