title: Catheter ablation of atrioventricular nodal reentrant tachycardia in patients with a prolonged PR interval at sinus rhythm.
abstract: Radiofrequency transcatheter ablation is an effective and safe treatment for atrioventricular node reentry tachycardia. Slow pathway ablation is considered the ablative technique of choice, but when atrioventricular nodal reentrant tachycardia is associated with a prolonged PR interval at sinus rhythm, a higher risk of delayed atrioventricular (AV) block has been reported. Studies on the subject are few, enrolling low numbers of patients with variable selection criteria and producing different results. Hence, optimal ablation strategy remains controversial. The aim of this study is to review the available knowledge on the topic. Experience from our centers is also briefly reported.
authors.affiliation: Cardiovascular Department, Treviso Hospital 'Ca' Foncello', Treviso, Italy.
authors.forename: Martino
authors.initials: M
authors.lastname: Crosato
authors.forename: Diego
authors.initials: D
authors.lastname: Vaccari
authors.forename: Vittorio
authors.initials: V
authors.lastname: Calzolari
authors.forename: Gianfilippo
authors.initials: G
authors.lastname: Neri
authors.forename: Zoran
authors.initials: Z
authors.lastname: Olivari
authors.forename: Roberto
authors.initials: R
authors.lastname: Mantovan
mesh_terms: D000368:Aged; D054537:Atrioventricular Block / Q000209:etiology; D017115:Catheter Ablation / Q000009:adverse effects; D004562:Electrocardiography; D005260:Female; D006329:Heart Conduction System / Q000503:physiopathology / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D018570:Risk Assessment; D012307:Risk Factors; D013611:Tachycardia, Atrioventricular Nodal Reentry / Q000175:diagnosis / Q000503:physiopathology / Q000601:surgery*; D016896:Treatment Outcome