Journal article

A prospective evaluation of the impact of individual RF applications for slow pathway ablation for AVNRT: Markers of acute success

Hariharan Sugumar, David Chieng, Sandeep Prabhu, Aleksandr Voskoboinik, Robert D Anderson, Ahmed Al-Kaisey, Geoffrey Lee, Alex J McLellan, Joseph B Morton, Andrew J Taylor, Liang-Han Ling, Jonathan M Kalman, Peter M Kistler



BACKGROUND: Catheter ablation is highly effective for atrioventricular nodal re-entrant tachycardia (AVNRT). Generally junctional rhythm (JR) is an accepted requirement for successful ablation however there is a lack of detailed prospective studies to determine the characteristics of JR and the impact on slow pathway conduction. METHODS: Multicentre prospective observational study evaluating the impact of individual radiofrequency (RF) applications in typical AVNRT (slow/fast). Characteristics of JR during ablation were documented and detailed testing was performed after every RF application to determine outcome. Procedural success was defined as ≤1 AV nodal echo. RESULTS: Sixty-seven patien..

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Funding Acknowledgements

Dr Sugumar is supported by co-funded NHMRC/NHF post-graduate scholarships & RACP JJ Billings and CRE-COI scholarships. The authors have no conflicts of interest pertaining to this study. However, the following industry funding sources regarding activities outside the submitted work have been declared in accordance with ICMJE guidelines. Prof. Peter M Kistler has received funding from Abbott for consultancy and speaking engagements. Prof. Jonathan M Kalman has NHMRC practitioner fellowship, research and fellowship support from Medtronic and Biosense Webster.