Assessment of Atrioventricular Conduction Following Cryoablation of Atrioventricular Nodal Reentrant Tachycardia in Children

Autor:	Isa Ozyilmaz, Murat Saygi, Celal Akdeniz, Enes E. Gul, Volkan Tuzcu, Yakup Ergul, Neslihan Kiplapinar
Rok vydání:	2014
Předmět:	Tachycardia medicine.medical_specialty medicine.diagnostic_test business.industry Atrioventricular conduction medicine.medical_treatment Cryoablation General Medicine medicine.disease Catheter Internal medicine Ambulatory medicine Cardiology Fluoroscopy medicine.symptom Cardiology and Cardiovascular Medicine business Prospective cohort study Atrioventricular block
Zdroj:	Pacing and Clinical Electrophysiology. 37:712-716
ISSN:	0147-8389
DOI:	10.1111/pace.12347
Popis:	Background: Early-onset transient atrioventricular block (AVB) is a rare occurrence following cryoablation of atrioventricular nodal reentrant tachycardia (AVNRT), despite lack of any AVB at the end of the procedure. The purpose of this prospective study was to assess AVB shortly after successful cryoablation of AVNRT in children. Methods: A 6-mm-tip cryocatheter was used in 39 procedures. An 8-mm-tip catheter was used in 11 procedures. Twelve-lead electrocardiograms (ECGs) and 24-hour ambulatory ECGs were performed 24 hours prior to the procedure and immediately following the procedure. All procedures were done using the EnSite system (St. Jude Medical, St. Paul, MN, USA) without fluoroscopy. Results: Although nine (18%) patients developed variable degrees of transient AVB during the procedure, all of them had normal atrioventricular (AV) conduction at the end of the procedure and did not require any intervention. Four of these patients had variable degrees of transient AVB following the procedure despite having normal AV conduction at the end of the procedure. One developed Mobitz type I AVB, which lasted for 11.5 hours, and the other three experienced 2:1 AVB, which lasted for 2, 8, and 24 hours, respectively. All patients had complete resolution of the AVB, which was also documented with the 24-hour ambulatory ECGs after the procedure. Conclusion: Early transient AVB can develop following AVNRT cryoablation even if AV conduction is normal at the end of the procedure. Despite the transient AVB in the initial 24 hours after the procedure in some cases, there is no evidence for ongoing AV nodal dysfunction. (PACE 2014; 00:1‐5)
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c1ef64e317ea30fbfa9fe46f592696d0 https://doi.org/10.1111/pace.12347 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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