Electrical parameters with His-bundle pacing: Considerations for automated programming

Heart Rhythm : the Official Journal of the Heart Rhythm Society
Neasa StarrHaran Burri

Abstract

Programming of His-bundle pacing may be challenging because current implantable pulse generators are not specifically designed for this pacing modality. The purpose of this study was to evaluate electrical parameters in order to propose preset programming options with different configurations. Data were collected from 50 patients with His pacing leads connected to various ports (atrial, right ventricular, or left ventricular) of pacemakers and defibrillators during a detailed device interrogation, which included capture thresholds with various pacing vectors, measurement of timing intervals, and performance of automatic threshold algorithms. His-bundle pacing thresholds were significantly lower during unipolar pacing compared to bipolar and extended bipolar polarities. However, current drain was offset due to lower impedance. The His pace-right ventricular sensed intervals were measured at 40-150 ms (mean 85 ± 25 ms), with the longest delays in patients with uncorrected right bundle branch block and selective His capture. This has implications for ventricular safety pacing windows (which were inactivated without evidence of crosstalk) and delays to minimize unnecessary ventricular backup pacing (which was also affected by refra...Continue Reading

Citations

May 2, 2020·Herzschrittmachertherapie & Elektrophysiologie·Elise BakelantsHaran Burri
Nov 27, 2020·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·Alwin ZweerinkHaran Burri
Jul 25, 2020·JACC. Clinical Electrophysiology·Haran BurriPugazhendhi Vijayaraman
Aug 30, 2021·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·Michael GliksonUNKNOWN ESC Scientific Document Group
Aug 30, 2021·European Heart Journal·Michael GliksonUNKNOWN ESC Scientific Document Group
Aug 18, 2021·Arrhythmia & Electrophysiology Review·Elise Bakelants, Haran Burri

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