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Articles linked to this work by shared authors, journal, and citation graph.

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First Reported Case of Chest Varicosities Prior to Permanent Pacemaker Implantation.

Pacing and clinical electrophysiology : PACE·2025
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Suture closure AFtEr large bore vein access (SAFE-VEIN): A randomized, prospective study of the efficacy and safety of venous closure device.

Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions·2024
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Acute pacing threshold elevation during simultaneous Micra leadless pacemaker implantation and AV node ablation: Clinical cases, computer model and practical recommendations.

Pacing and clinical electrophysiology : PACE·2023
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Identifying the prognostic significance of early arrhythmia recurrence during the blanking period and the optimal blanking period duration: insights from the DECAAF II study.

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·2023
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Differences in postablation cardiac MRI scar between radiofrequency and cryoballoon ablation: A DECAAF II subanalysis.

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Related Experiment Video

Updated: May 30, 2025

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing
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Concurrent Micra Leadless Pacemaker Implantation and AVN Ablation: Computer Modeling of Novel Risk Mitigation

Daniel Wetherbee Nelson1, Lynn Erickson2, Jodi L Zilinski1,3

  • 1Aurora Cardiovascular and Thoracic Services, Aurora Sinai/Aurora St. Luke's Medical Centers, Milwaukee, Wisconsin, USA.

Pacing and Clinical Electrophysiology : PACE
|January 27, 2025
PubMed
Summary
This summary is machine-generated.

Concurrent implantation of Micra leadless pacemakers and atrioventricular node ablation is safe and effective for atrial fibrillation. Computer modeling suggests repositioning the RF return electrode can mitigate risks like asystole.

Keywords:
AVN ablationMicra leadless pacemakerasystoledissipated powerpacing thresholdradiofrequency ablation

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Area of Science:

  • Cardiology
  • Electrophysiology
  • Medical Device Technology

Background:

  • Atrial fibrillation (AF) management often involves pacemakers and atrioventricular node (AVN) ablation.
  • Concurrent implantation of Micra leadless pacemakers and AVN ablation is feasible but carries risks of major complications.
  • Evaluating the safety and efficacy of this combined procedure is crucial.

Purpose of the Study:

  • To assess the efficacy and safety of concurrent Micra leadless pacemaker implantation and AVN ablation.
  • To investigate potential complications and mitigation strategies associated with the procedure.

Main Methods:

  • A single-center, retrospective case series of 15 patients undergoing concurrent Micra implantation and radiofrequency (RF) AVN ablation.
  • Utilized a simulated computer model to analyze RF current interaction with the Micra device.

Main Results:

  • The concurrent procedure demonstrated feasibility and high procedural success.
  • One patient experienced transient loss of ventricular capture, leading to asystole.
  • Computer modeling indicated that repositioning the RF return electrode cranially reduces power dissipation at the Micra.

Conclusions:

  • Concurrent Micra implantation and AVN ablation is a safe and feasible option for symptomatic, drug-refractory AF.
  • Acute increases in pacing thresholds and asystole are potential risks.
  • Optimizing RF return electrode placement is key to minimizing energy interference with the leadless pacemaker.