Return cycle mapping after entrainment of ventricular tachycardia

Circulation
T NittaJ P Boineau

Abstract

The central common pathway, which is the target for ablation in reentrant ventricular tachycardia, can be localized by entrainment mapping techniques. However, localization of the pathway is not always possible because of the elevated pacing threshold and the low voltage and fractionated potentials at the pathway. We examined whether return cycle mapping after entrainment localizes the pathway without pacing at the pathway or recording the potentials from the pathway and determined the required electrode resolution to localize the pathway. Epicardial mapping was performed with 253 unipolar electrodes during and after entrainment of 13 morphologies of ventricular tachycardia that were induced in dogs 4 days after infarction. The return cycle was calculated by subtracting the first activation time from the second activation time after the last stimulus and the return cycle distribution map was constructed for each stimulation site. The return cycle isochrones equal to the ventricular tachycardia cycle length converged on the lines of conduction block irrespective of the stimulation site, and the central common pathway was localized at the region between the intersections of the return cycle isochrones after entrainment from diffe...Continue Reading

References

Apr 1, 1992·Pacing and Clinical Electrophysiology : PACE·H J TrappeP R Lichtlen
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Citations

May 16, 2009·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·Etienne M AliotUNKNOWN Heart Rhythm Society
Aug 11, 2000·European Journal of Heart Failure·R C Starling, P M McCarthy
Feb 12, 2009·Journal of Cardiovascular Electrophysiology·Paweł DerejkoFranciszek Walczak
Feb 15, 2001·The Journal of Thoracic and Cardiovascular Surgery·T NittaJ P Boineau
Jun 4, 2021·Circulation Journal : Official Journal of the Japanese Circulation Society·Akihiko NogamiUNKNOWN JCS/JHRS Joint Working Group
Aug 14, 2021·Journal of Arrhythmia·Akihiko NogamiUNKNOWN JCS/JHRS Joint Working Group

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