Journal article
P-Wave Morphology in Focal Atrial Tachycardia: An Updated Algorithm to Predict Site of Origin
PM Kistler, D Chieng, IR Tonchev, H Sugumar, A Voskoboinik, LA Schwartz, AJ McLellan, S Prabhu, LH Ling, A Al-Kaisey, R Parameswaran, RD Anderson, G Lee, JM Kalman
Jacc Clinical Electrophysiology | ELSEVIER | Published : 2021
Abstract
Objectives: This study sought to report P-wave morphology (PWM) from a series of paraseptal (PS) atrial tachycardia (AT), revise then prospectively evaluate a simplified PWM algorithm against a contemporary consecutive cohort with focal AT. Background: The 2006 PWM algorithm was useful in predicting the origin of focal AT. An updated algorithm was developed given advances in multipolar 3-dimensional mapping, potential limitations of PWM in separating PS sites, and a renewed interest in the P-wave in mapping non–pulmonary vein triggers. Methods: The PWM from a consecutive series of 67 patients with PS AT were analyzed. PS sites included were coronary sinus ostium, perinodal, left and right se..
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Funding Acknowledgements
Dr Chieng has been supported by a co-funded National Health and Medical Research Council (NHMRC)/National Heart Foundation postgraduate scholarship. The following industry funding sources regarding activities outside the submitted work have been declared in accordance with ICMJE guidelines. Prof Kistler has received funding from Abbott Medical for consultancy and speaking engagements and fellowship support from Biosense Webster. Prof Kalman has had an NHMRC practitioner fellowship, and research and fellowship support from Medtronic and Biosense Webster. All other authors have reported that they have no relationships relevant to the contents of this paper to disclose.