@misc{01HGWKZEHH2K46ZD26NMG0XJXP,
  abstract     = {{Background: Recently, treatment of equine atrial tachycardia by three-dimensional electro-anatomical mapping (3D EAM) and radiofrequency catheter ablation (RFCA) has been described. Myocardial sleeves in the caudal vena cava and pulmonary veins are a potential trigger for initiation and perpetuation of atrial tachycardia and atrial fibrillation in the horse. Isolation of these myocardial sleeves by RFCA may be an effective treatment for these arrhythmias.Objectives: To describe the feasibility of 3D EAM and RFCA to isolate caudal vena cava and pulmonary veins in adult horses using 3D mapping and a contact force (CF)-guided ablation system.Study Design: In vivo experiment.Methods: 3D EAM and RFCA was performed in five horses without cardiovascular disease under general anaesthesia, using the CF-guided system CARTO®3. Point-by-point RFCA aimed for isolation of caudal vena cava and pulmonary veins. Radiofrequency energy was delivered in power-controlled mode with a target power of 45 W, CF between 10-15 g and 30 ml/min irrigation rate, until an ablation-index of 450-500 was reached.Results: In the right atrium, myocardial sleeves of the caudal vena cava were isolated (n=5). In the left atrium, isolation of ostium II (n=3), ostium III (n=1) and ostium I, II and III <i>en bloc </i>(n=1) was performed. Successful isolation was confirmed by entrance and exit block.Main limitations: Horses were euthanized at the end of the procedure, so long term effects such as potential reconnection of isolated veins could not be studied.Conclusions: This is the first description of 3D EAM and RFCA with CARTO® 3 in horses, thereby showing the technical feasibility and successful caudal vena cava and pulmonary vein isolation. CF measurement allowed monitoring of catheter-tissue contact, resulting in efficient acute lesion creation as confirmed by entrance and exit block. This is a promising treatment for cardiac arrhythmias in horses.}},
  author       = {{Buschmann, Eva and Van Steenkiste, Glenn and Duytschaever, Mattias and Boussy, Timothy and Vernemmen, Ingrid and Ibrahim, Lara and Schauvliege, Stijn and Decloedt, Annelies and van Loon, Gunther}},
  keywords     = {{Horses,3D electro-anatomical mapping,Electrophysiology/arrhythmia,Radiofrequency ablation, RFA}},
  language     = {{eng}},
  publisher    = {{figshare}},
  title        = {{Dataset: Successful caudal vena cava and pulmonary vein isolation in healthy horses using 3D electro-anatomical mapping and a contact force-guided abaltion system}},
  url          = {{http://doi.org/10.6084/M9.FIGSHARE.24745281}},
  year         = {{2023}},
}

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