Po-06-114 redefining atrial substrate assessment in the omnipolar mapping era

Left atrial (LA) low voltage area (LVA) burden correlates with AF recurrence risk post pulmonary vein isolation. Adjunctive ablation targeting LVAs, has been reported to improve outcomes. A bipolar voltage (BiV) threshold of 0.5mV is commonly employed to define LVAs, however BiV is influenced by multiple factors including atrial rhythm and technical factors. Omnipolar technology (OT) overcomes many limitations of BiV mapping, however there is little data on equivalent OT thresholds.

Source: Heart Rhythm - May 1, 2024 Category: Cardiology Authors: Haseeb Valli, Mahmoud Ehnesh, Zhong Chen, Wajid Hussain, David G. Jones, Tom Wong, Caroline H. Roney, Shouvik Haldar Source Type: research