Key result
Omnipolar high-density grid mapping guides successful ablation of a residual epicardial connection in persistent AF.
Why the study?
Successful posterior wall isolation as an adjunct to PVI in AF is limited by esophageal location, epicardial bridging signals, tissue thickness, and mapping catheter resolution.
Does high-density grid mapping with omnipolar technology facilitate successful posterior wall isolation in persistent atrial fibrillation?
Case Report (n=1)
No
Does high-density grid mapping with omnipolar technology facilitate successful posterior wall isolation in persistent atrial fibrillation?
High-density grid mapping catheters with omnipolar technology can facilitate successful posterior wall isolation in patients with persistent atrial fibrillation.
May facilitate targeted ablation of epicardial connections; leaves open whether omnipolar grid mapping improves posterior wall isolation rates.
Pulmonary vein isolation (PVI) is used for rhythm control in atrial fibrillation (AF). Posterior wall isolation (PWI) is often an adjunct to PVI. Successful PWI is limited by esophageal location, epicardial bridging signals, tissue thickness, and mapping catheter resolution. High-density grid mapping catheters can assist with PWI. Here, we report a case of a 71-year-old woman with persistent AF who underwent PVI and PWI with high-density grid mapping catheters, thus demonstrating the use of omnipolar technology in facilitating successful PWI.
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Dubey et al. (2023) conducted a case report in Persistent Atrial Fibrillation (n=1). Pulmonary vein isolation and posterior wall isolation using high-density grid mapping catheter with omnipolar technology was evaluated. In a patient with persistent atrial fibrillation, a high-density grid mapping catheter with omnipolar technology successfully identified and facilitated ablation of a residual epicardial connection.
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