Intracardiac Mapping

Segal, Oliver R.; Koa‐Wing, Michael; Jarman, Julian W.E.; Peters, Nicholas S.; Markides, Vias; Davies, D. Wyn

doi:10.1007/978-0-85729-877-5_3

Cited by 1 publication

(2 citation statements)

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“…Differentiation between a macro‐reentrant circuit (eg, atrial flutter) and a focal source is based upon characteristics of the surface ECG but remains challenging 5‐7 . In human medicine, invasive electrophysiological studies, such as endocardial mapping, are often required to identify the underlying AT mechanism 5,8 …”

Section: Introductionmentioning

confidence: 99%

“…[5][6][7] In human medicine, invasive electrophysiological studies, such as endocardial mapping, are often required to identify the underlying AT mechanism. 5,8 The technique of 3D electro-anatomical mapping (EAM) combines the recording of electrical activity from multielectrode, intracardiac catheters with a location tracking system that automatically determines the 3D position of the catheter in the heart. This 3D tracking of the catheter is based upon impedance sensing or on a magnetic sensor in the catheter in combination with an external magnetic field generator.…”

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confidence: 99%

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Detection of the origin of atrial tachycardia by 3D electro‐anatomical mapping and treatment by radiofrequency catheter ablation in horses

Steenkiste

Boussy

Duytschaever

et al. 2022

Veterinary Internal Medicne

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Background: Atrial tachycardia (AT) can be treated by medical or electrical cardioversion but the recurrence rate is high. Three-dimensional electro-anatomical mapping, recently described in horses, might be used to map AT to identify a focal source or reentry mechanism and to guide treatment by radiofrequency ablation.Objectives: To describe the feasibility of 3D electro-anatomical mapping and radiofrequency catheter ablation to characterize and treat sustained AT in horses.Animals: Nine horses with sustained AT.Methods: Records from horses with sustained AT referred for radiofrequency ablation at Ghent University were reviewed. Results:The AT was drug resistant in 4 out of 9 horses. In 8 out of 9 horses, AT originated from a localized macro-reentrant circuit (n = 5) or a focal source (n = 3) located at the transition between the right atrium and the caudal vena cava. In these 8 horses, local radiofrequency catheter ablation resulted in the termination of AT. At followup, 6 out of 8 horses remained free of recurrence.Conclusions and Clinical Importance: Differentiation between focal and macroreentrant AT in horses is possible using 3D electro-anatomical mapping. In this study, the source of right atrial AT in horses was safely treated by radiofrequency catheter ablation.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%