Atrial extrasystoles enhance low-voltage fractionation electrograms in patients with atrial fibrillation.
Mathijs S van SchieRongheng LiaoNawin L Ramdat MisierPaul KnopsAnnejet HeidaYannick J H J TaverneNatasja M S de GrootPublished in: Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology (2023)
Unipolar EGM characteristics during spontaneous AES are mainly directional-dependent and not rate-dependent. AF patients have more direction-dependent conduction disorders, indicating enhanced non-uniform anisotropy that is uncovered by spontaneous AES.