Dissociation between anterograde and retrograde conduction during transvenous cryoablation of parahissian accessory pathways.
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.
Sorgente
Antonio
A
Heart Rhythm Management Center, UZ Brussel-VUB, Laarbeeklaan, Brussels, Belgium. sorgente.antonio@gmail.com
Paparella
Gaetano
G
Chierchia
Gian-Battista
GB
Sarkozy
Andrea
A
De Asmundis
Carlo
C
Müller-Burri
Stephan-Andreas
SA
Yazaki
Yoshinao
Y
Capulzini
Lucio
L
Brugada
Pedro
P
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