Running Title: ‘Local Impedance for Atrial fibrillation ablation’

Gavin S Chu¹, Dhiraj Gupta^1,2

Liverpool Heart and Chest Hospital NHS Foundation Trust

Liverpool Centre for Cardiovascular Science, University of Liverpool, UK

Word count : 1498 (including table and table legend, excluding references)

Key words: Local Impedance, Atrial fibrillation, Catheter ablation

Funding: None

Disclosures: DG is the recepient of institutional research grants from Biosense Webster, Medtronic and Boston Scientific. GC: none