title: Dissociation between anterograde and retrograde conduction during transvenous cryoablation of parahissian accessory pathways.
abstract: Ablation of parahissian accessory pathways (APs) is a challenging procedure because of the high risk to provoke "iatrogenic" atrioventricular (AV) nodal block. The feasibility and safety of cryoablation (CA) have been already demonstrated both in patients with AV nodal reentry tachycardia and in those with anteroseptal APs. However, dissociation between anterograde and retrograde conduction after CA has not yet been described. We report two cases of CA of parahissian AP associated with transient dissociation between anterograde and retrograde conduction.
authors.affiliation: Heart Rhythm Management Center, UZ Brussel-VUB, Laarbeeklaan, Brussels, Belgium. sorgente.antonio@gmail.com
authors.forename: Antonio
authors.initials: A
authors.lastname: Sorgente
authors.forename: Gaetano
authors.initials: G
authors.lastname: Paparella
authors.forename: Gian-Battista
authors.initials: GB
authors.lastname: Chierchia
authors.forename: Andrea
authors.initials: A
authors.lastname: Sarkozy
authors.forename: Carlo
authors.initials: C
authors.lastname: De Asmundis
authors.forename: Stephan-Andreas
authors.initials: SA
authors.lastname: Müller-Burri
authors.forename: Yoshinao
authors.initials: Y
authors.lastname: Yazaki
authors.forename: Lucio
authors.initials: L
authors.lastname: Capulzini
authors.forename: Pedro
authors.initials: P
authors.lastname: Brugada
mesh_terms: D058606:Accessory Atrioventricular Bundle / Q000175:diagnosis / Q000601:surgery*; D001145:Arrhythmias, Cardiac / Q000175:diagnosis / Q000209:etiology / Q000601:surgery*; D002036:Bundle of His / Q000002:abnormalities* / Q000601:surgery*; D003452:Cryosurgery / Q000379:methods*; D004562:Electrocardiography / Q000379:methods; D006801:Humans; D008297:Male; D016896:Treatment Outcome; D055815:Young Adult