title: Successful cryoablation of atrioventricular nodal reentrant tachycardia and coexisting accessory pathways without fluoroscopy.
abstract: We report the case of a 14-year-old boy patient admitted to our outpatient clinic with palpitations and documented supraventricular tachycardia. Electrophysiological study and ablation were planned. In the electrophysiological study, two tachycardias with different cycle lengths and morphologies were induced. After elimination of the slow pathway, left posterior accessory pathway was detected and successfully ablated. Another pathway was detected following that ablation. Due to the slow retrograde conduction of this pathway, diltiazem infusion was started to uncover the accessory pathway. The second accessory pathway was at the left posteroseptal region and was successfully ablated. After a 30-minute waiting period, no tachycardia was induced. In addition, no fluoroscopy was used during the procedure.
authors.affiliation: Department of Pediatric Cardiology/Electrophysiology, Medipol University, Istanbul, Turkey.
authors.forename: Enes Elvin
authors.initials: EE
authors.lastname: Gul
authors.forename: Fatma Seyma
authors.initials: FS
authors.lastname: Ugur
authors.forename: Celal
authors.initials: C
authors.lastname: Akdeniz
authors.forename: Volkan
authors.initials: V
authors.lastname: Tuzcu
mesh_terms: D058606:Accessory Atrioventricular Bundle / Q000175:diagnosis / Q000503:physiopathology / Q000601:surgery*; D000293:Adolescent; D003452:Cryosurgery / Q000379:methods*; D004110:Diltiazem; D004562:Electrocardiography; D022062:Electrophysiologic Techniques, Cardiac; D006801:Humans; D008297:Male; D025321:Surgery, Computer-Assisted; D013611:Tachycardia, Atrioventricular Nodal Reentry / Q000175:diagnosis / Q000503:physiopathology / Q000601:surgery*; D016896:Treatment Outcome
chemical_list: D004110:Diltiazem
keywords: AVNRT; Accessory Pathway; Cryoablation; Fluoroscopy