title: Decremental intravenous pulse propagation during extrastimulus pacing: relevance for catheter ablation of focal atrial fibrillation.
abstract: We report a case study demonstrating delayed circumferential intrapulmonary-venous conduction characteristics during coronary sinus extrastimulus pacing. This phenomenon allowed the unmasking and discrimination of a localized left atrial to PV breakthrough from secondarily activated PV muscle in a common left-sided PV ostium. Thus, this pacing manoeuvre may serve to guide RF delivery in the treatment of focal AF.
authors.affiliation: Department of Medicine-Cardiology, University of Bonn, Germany. th.lewalter@uni-bonn.de
authors.forename: T
authors.initials: T
authors.lastname: Lewalter
authors.forename: D
authors.initials: D
authors.lastname: Burkhardt
authors.forename: S
authors.initials: S
authors.lastname: Chun
authors.forename: R
authors.initials: R
authors.lastname: Schimpf
authors.forename: H
authors.initials: H
authors.lastname: Bielik
authors.forename: J
authors.initials: J
authors.lastname: Schrickell
authors.forename: N
authors.initials: N
authors.lastname: Shlevkov
authors.forename: A
authors.initials: A
authors.lastname: Yang
authors.forename: B
authors.initials: B
authors.lastname: Lüderitz
mesh_terms: D001281:Atrial Fibrillation / Q000601:surgery*; D002304:Cardiac Pacing, Artificial; D017115:Catheter Ablation; D022062:Electrophysiologic Techniques, Cardiac; D006801:Humans; D008297:Male; D008875:Middle Aged; D011667:Pulmonary Veins / Q000601:surgery*