Key result
Novel HD Grid mapping with pacing templates appears to easily locate non-pulmonary vein AF triggers.
Why the study?
Mapping non-pulmonary vein triggers for the initiation of AF can be complex and time-consuming.
Does a high definition multielectrode catheter mapping technique using pacing templates localize the trigger for the initiation of atrial fibrillation?
Case Report
Does a high definition multielectrode catheter mapping technique using pacing templates localize the trigger for the initiation of atrial fibrillation?
The use of an HD Grid catheter with pacing templates may simplify the localization of non-pulmonary vein triggers for atrial fibrillation.
Mapping of non pulmonary vein triggers for the initiation of atrial fibrillation can be complex and time consuming. We describe a technique where templates are created by pacing from different locations with the right and left atria during sinus rhythm whilst positioning a high definition (HD) Grid catheter along the posterior wall of the left atrium and recording the activation sequence. Following this AF is initiated using decremental atrial pacing and the administration of intravenous isoprenaline and the activation across the HD Grid is compared with the templates. In our case series this appears to easily locate the focus source for the initiation of AF.
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Hong et al. (2020) conducted a case report in Atrial fibrillation. High definition (HD) Grid catheter mapping technique was evaluated on Localization of the focus source for the initiation of atrial fibrillation. A novel mapping technique using a high definition (HD) Grid catheter and pacing templates appeared to easily locate the non-pulmonary vein focus source for the initiation of atrial fibrillation.
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