Premature atrial contractions promote local directional heterogeneities in conduction velocity vectors.
Mathijs S van SchieNawin L Ramdat MisierPayam Razavi EbrahimiAnnejet HeidaRohit K KharbandaYannick 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)
Local directional heterogeneity is a novel methodology to quantify local heterogeneity in CV as a possible indicator of electropathology. Intra-operative high-resolution mapping indeed revealed that LDH increased during PACs particularly at BB and PVA. Also, patients with AF already have more LDH during SR, which becomes more pronounced during PACs.