期刊
JOURNAL OF VETERINARY INTERNAL MEDICINE
卷 37, 期 2, 页码 728-734出版社
WILEY
DOI: 10.1111/jvim.16668
关键词
arrhythmia; electrophysiology; equine cardiology; ventricular pre-excitation
We report a case of diagnosis and treatment of atrioventricular accessory pathway (AP) in a horse using 3-dimensional electro-anatomical mapping (3D EAM) and radiofrequency catheter ablation (RFCA). The AP was suspected from the 12-lead ECG and vectorcardiography, and it was precisely localized using 3D EAM. After ablation, AP conduction was eliminated and pre-excitation disappeared. This case demonstrates the feasibility of 3D EAM and RFCA for identifying and treating AP in horses.
We describe the diagnosis and treatment of an atrioventricular accessory pathway (AP) in a horse using 3-dimensional electro-anatomical mapping (3D EAM) and radiofrequency catheter ablation (RFCA). During routine evaluation of the horse, intermittent ventricular pre-excitation was identified on the ECG, characterized by a short PQ interval and abnormal QRS morphology. A right cranial location of the AP was suspected from the 12-lead ECG and vectorcardiography. After precise localization of the AP using 3D EAM, ablation was performed and AP conduction was eliminated. Immediately after recovery from anesthesia an occasional pre-excited complex still was observed, but a 24-hour ECG and an ECG during exercise 1 and 6 weeks after the procedure showed complete disappearance of pre-excitation. This case shows the feasibility of 3D EAM and RFCA to identify and treat an AP in horses.
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