Postablation-acquired short atrioventricular Mahaim-type fibers: observations on their clinical, electrocardiographic, and electrophysiologic profile

Heart Rhythm : the Official Journal of the Heart Rhythm Society
Eduardo Back SternickHein J J Wellens

Abstract

The electrophysiologic characteristics of decrementally conducting accessory pathways (APs) are well described; however, little is known about decrementally conducting APs caused by the radiofrequency ablation of a rapidly conducting AP. To report the clinical, electrocardiographic, and electrophysiologic characteristics of 6 patients who developed a decremental AP after an attempt at ablation. We compared the clinical and electrophysiologic characteristics of 295 consecutive patients with the Wolff-Parkinson-White syndrome who underwent radiofrequency ablation of 311 manifest APs (group A) with those of 6 patients with the Wolff-Parkinson-White syndrome in whom a decrementally conducting AP was detected after an attempt at ablation. The AP ablation site in group B patients was at the coronary sinus ostium region in 3 patients, middle cardiac vein in 2 patients, and left posteroseptal region in 1 patient. Sixty-two bypass tracts in group A patients and all 6 in group B patients were ablated at these locations, while 249 bypass tracts in group A patients and none in group B patients were ablated elsewhere (P = .0001). Five of the 6 patients (83%) with acquired Mahaim physiology had an AP located in the venous system. The odds fo...Continue Reading

References

Feb 24, 2001·Journal of Cardiovascular Electrophysiology·E B SternickE G God
Apr 27, 2005·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Eduardo Back SternickHein J J Wellens
Aug 13, 2011·Heart Rhythm : the Official Journal of the Heart Rhythm Society·André G Kléber

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Citations

Aug 10, 2018·Pacing and Clinical Electrophysiology : PACE·Finn AkerströmMiguel A Arias
Dec 21, 2014·Circulation. Arrhythmia and Electrophysiology·Maurício Ibrahim ScanavaccaEduardo A Sosa
Oct 17, 2013·Circulation. Arrhythmia and Electrophysiology·Philippe DebruyneHein J J Wellens
May 23, 2018·Europace : European Pacing, Arrhythmias, and Cardiac Electrophysiology : Journal of the Working Groups on Cardiac Pacing, Arrhythmias, and Cardiac Cellular Electrophysiology of the European Society of Cardiology·José Nunes de Alencar NetoHein J J Wellens
Dec 10, 2017·Pacing and Clinical Electrophysiology : PACE·Cheyenne BeachGaurav Arora
Jun 23, 2021·Indian Pacing and Electrophysiology Journal·Raghav BansalYash Lokhandwala
Aug 2, 2021·JACC. Clinical Electrophysiology·Satoshi HiguchiHenry Hsia

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