Cryoablation with an 8-mm Tip Catheter for Pediatric Atrioventricular Nodal Reentrant Tachycardia Is Safe and Efficacious with a Low Incidence of Recurrence

Silver, Eric S.; Silva, Jonathan R.; Ceresnak, Scott R.; Chiesa, A R N Nancy; Rhee, Edward K.; Dubin, Anne M.; Avasarala, Kishor; Hare, George F. Van; Collins, Kathryn K.

doi:10.1111/j.1540-8159.2010.02706.x

Cited by 51 publications

(46 citation statements)

References 21 publications

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“…atrial flutter), and further studies will determine their efficacy in children. Finally, as most studies on cryoablation of AVNRT in children report acute success rates ranging between 90 and 100%, RFCA was at least equally successful in our study cohort .…”

Section: Discussionsupporting

confidence: 64%

Radiofrequency catheter ablation can be performed with high success rates and very low complication rates in children and adolescents

et al. 2014

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Section: Discussionsupporting

confidence: 64%

Radiofrequency catheter ablation can be performed with high success rates and very low complication rates in children and adolescents

et al. 2014

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“…Cryoablation for AVNRT in pediatric patients has been shown to have good acute success rate (83–95%) and recurrence rates (8–14%) . In these previous studies, the vast majority (93–96%) of patients had inducible sustained AVNRT during cryoablation .…”

Section: Discussionmentioning

confidence: 95%

“…Intermediate‐term success has been achieved with RF ablation when sustained AVNRT was not induced during electrophysiologic study (EPS) prior to ablation . While previous large studies have included 4–7% of patients who did not have sustained AVNRT prior to or during cryoablation, limited data exist regarding the specific success rate of cryoablation for patients in whom sustained AVNRT could not be induced …”

Section: Introductionmentioning

confidence: 99%

Cryoablation of AVNRT When Sustained Tachycardia Cannot be Induced

Suntharos

Blaufox

2013

Pacing Clinical Electrophis

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“…Despite this, the long term recurrence rate appears to be acceptable at 8%. Other recent studies suggest that improved outcomes with cryoablation of AVNRT, perhaps comparable to radiofrequency ablation, may be achieved with 8 mm tip catheters [13], [14], linear ablation in the inferior portion of Koch's triangle [15], freeze-thaw-freeze cycles [16], and eliminating slow pathway conduction completely i.e. no jump or echo beats [17].…”

Section: Discussionmentioning

confidence: 99%

Pseudo cryomapping for ablation of atrioventricular nodal reentry tachycardia: A single center North American experience

Moondra

Greenberg

Gerling

et al. 2017

Indian Pacing and Electrophysiology Journal

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BackgroundMost literature for cryoablation of atrioventricular nodal reentry tachycardia (AVNRT) is based on −30 degree celsius cryomapping with 4 & 6 mm distal electrode catheters. The cryomapping mode is not available on the 6 mm cryocatheter in the United States. We describe a technique for ‘pseudo’ mapping at −80° using a 6 mm cryocatheter and report on short and long term outcomes.MethodsA retrospective analysis of all index cases (n = 253) of cryoablation of AVNRT at a single North American institution during the period of 2003–2010 was performed. The majority of cases utilized a 6 mm distal electrode tip catheter. Long term follow up (2.4 ± 1.8 years) was performed via review of the medical record and by questionnaire or telephone if necessary.ResultsAcute ablation success was achieved in 93% of cases, with transient conduction defects noted in 39% of cases, and long term conduction defects in 1.6% of cases (4 patients with PR prolongation, 2 of which were permanent). General anesthesia, male gender and presence of structural heart disease were more common in the acute failure cohort. The recurrence rate for AVNRT was 8%. These patients tended to be younger and had more transient A-V conduction defects during the index procedure than those without a recurrence.ConclusionsIn conclusion, anatomic cryoablation of AVNRT utilizing a 6 mm electrode catheter with mapping performed at −80° Celsius is a safe procedure with good long term efficacy. Transient A-V block during the index procedure increases the risk of late recurrence.

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Cryoablation with an 8-mm Tip Catheter for Pediatric Atrioventricular Nodal Reentrant Tachycardia Is Safe and Efficacious with a Low Incidence of Recurrence

Abstract: Cryoablation with an 8-mm tip ablation catheter is both safe and effective with a low risk of recurrence for the treatment of AVNRT in pediatric patients.

Cited by 51 publications

References 21 publications

Radiofrequency catheter ablation can be performed with high success rates and very low complication rates in children and adolescents

Radiofrequency catheter ablation can be performed with high success rates and very low complication rates in children and adolescents

Cryoablation of AVNRT When Sustained Tachycardia Cannot be Induced

Pseudo cryomapping for ablation of atrioventricular nodal reentry tachycardia: A single center North American experience

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