Two-to-one conduction block between left atrium and right lower pulmonary vein preceding complete vein isolation during radiofrequency current ablation.
A 56-year-old patient with paroxysmal atrial fibrillation who developed a transient 2:1 block between the left atrium and right inferior pulmonary vein during a single application of radiofrequency current was described. The production of transient and complete atriovenous block by a single application of radiofrequency current demonstrates that a single connection between the pulmonary veins muscle and the left atrium may exist.
Weber
Stefan
S
Klinik und Poliklinik für Innere Medizin II, Universität Regensburg, Germany. stefan.weber@klinik.uni-regensburg.de
Ndrepepa
Gjin
G
Schneider
Michael
M
Schmitt
Claus
C
D001281:Atrial Fibrillation / Q000209:etiology / Q000503:physiopathology / Q000601:surgery*; D018880:Atrial Premature Complexes / Q000150:complications / Q000503:physiopathology / Q000601:surgery*; D017115:Catheter Ablation; D004562:Electrocardiography; D015716:Electrocardiography, Ambulatory; D005500:Follow-Up Studies; D006325:Heart Atria / Q000503:physiopathology*; D006329:Heart Conduction System / Q000503:physiopathology / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D011667:Pulmonary Veins / Q000503:physiopathology* / Q000601:surgery*; D016896:Treatment Outcome