Journal article
Entrainment and high-density three-dimensional mapping in right atrial macroreentry provide critical complementary information: Entrainment may unmask “visual reentry” as passive
B Pathik, G Lee, C Nalliah, S Joseph, JB Morton, PB Sparks, P Sanders, PM Kistler, JM Kalman
Heart Rhythm | Published : 2017
Abstract
Background With the recent advent of high-density (HD) 3-dimensional (3D) mapping, the utility of entrainment is uncertain. However, the limitations of visual representation and interpretation of these high-resolution 3D maps are unclear. Objective The purpose of this study was to determine the strengths and limitations of both HD 3D mapping and entrainment mapping during mapping of right atrial macroreentry. Methods Fifteen patients were studied. The number and type of circuits accounting for ≥90% of the tachycardia cycle length using HD 3D mapping were verified using systematic entrainment mapping. Entrainment sites with an unexpectedly long postpacing interval despite proximity to the act..
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Funding Acknowledgements
Dr. Pathik is a recipient of the Postgraduate Research Scholarship from the National Health and Medical Research Council (NHMRC) and National Heart Foundation of Australia. Dr. Lee is supported by a NHMRC Early Career Fellowship. Drs. Kistler and Kalman are supported by NHMRC Practitioner Fellowships. Dr. Sanders has served on the advisory board of Biosense Webster, Medtronic, St. Jude Medical, and Boston Scientific. Dr. Sanders has reported receiving lecture and/or consulting fees from Biosense Webster, Medtronic, St. Jude Medical, and Boston Scientific; and research funding from Medtronic, St. Jude Medical, Boston Scientific, Biotronik, and Sorin. Dr. Kalman has reported receiving research support from Biosense Webster, Boston Scientific, St. Jude Medical, and Medtronic; and has served on the advisory board of Boston Scientific and Biosense Webster. All other authors have reported that they have no relationships relevant to the contents of this paper to disclose. Address reprint requests and correspondence: Dr. Jonathan M. Kalman, Department of Cardiology, Royal Melbourne Hospital, Grattan Street, Parkville, Victoria 3052, Australia.