Key result
Pulmonary vein isolation using radiofrequency or cryoballoon ablation treats atrial fibrillation (UK prevalence 3.29%), where patient movement during 3D mapping increases complication risks.
Why the study?
Patient movement during three-dimensional electro-anatomical mapping for atrial fibrillation ablation can dislocate the catheter relative to the anatomical map, leading to ablation at incorrect sites and higher likelihood of mechanical complications.
Patient movement during AF ablation mapping warrants procedural caution; leaves open optimal mitigation strategies for prospective trials.
Atrial fibrillation Atrial fibrillation, caused by chaotic electrical activity in the atria (Fig. 1), is the most common arrhythmia with a UK prevalence of 3.29%. Pulmonary vein isolation (PVI) using radiofrequency or cryoballoon ablation is a well established treatment for atrial fibrillation. Three-dimensional electro-anatomical mapping is often used for radiofrequency ablation, with which a left atrial ‘geometry’ is created by the movement of a mapping catheter within the chamber onto which electrical data can be superimposed to diagnose arrhythmia mechanisms and localise arrhythmogenic foci (Fig. 2). Movement during acquisition of the geometry can lead to dislocation of catheter projection relative to the anatomical map, resulting in ablation at incorrect sites, and a higher likelihood of mechanical complications due to catheter trauma.
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Reddy et al. (2022) conducted a review in Atrial fibrillation. Sedation and anaesthetic strategies during cardiac electrophysiology studies and ablation was evaluated. Pulmonary vein isolation using radiofrequency or cryoballoon ablation treats atrial fibrillation (UK prevalence 3.29%), where patient movement during 3D mapping increases complication risks.
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