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Updated: Feb 11, 2026

Robotic Ablation of Atrial Fibrillation
11:21

Robotic Ablation of Atrial Fibrillation

Published on: May 29, 2015

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Continuous monitoring after atrial fibrillation ablation: the LINQ AF study

Simon Wechselberger1, Mads Kronborg2, Yan Huo1

  • 1Department of Electrophysiology, Heart Center, University of Technology Dresden, Fetscherstrasse 76, Dresden, Germany.

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
|April 25, 2018
PubMed

Insights

A novel implantable cardiac monitor (ICM) effectively tracks atrial fibrillation (AF) recurrence after ablation. Standardizing AF detection duration to over 6 minutes improves outcome assessment accuracy.

Area of Science:

  • Cardiology
  • Medical Devices
  • Electrophysiology

Background:

  • Atrial fibrillation (AF) ablation success is challenging to assess accurately.
  • Novel implantable cardiac monitors (ICMs) offer continuous patient monitoring.
  • Standardized outcome metrics are needed for reliable AF ablation studies.

Purpose of the Study:

  • Evaluate the performance of a new ICM in AF patients post-ablation.
  • Characterize arrhythmia recurrence patterns using ICM data.
  • Compare different methods for assessing ablation outcomes.

Main Methods:

  • 419 patients received an ICM post-AF catheter ablation.
  • Device performance was assessed using AF detection durations (≥2, ≥6, ≥10 min).
  • Four outcome assessment methods were analyzed: continuous, discontinuous, AF-burden, and rhythm profiles.

Main Results:

  • Positive predictive values for AF detection increased with longer durations (85.9% for ≥10 min).
  • Short AF episodes (<6 min) were rare and clinically insignificant.
  • Outcome assessment varied widely (46-79% success); AF burden and rhythm profiles were most consistent (60-70% success).

Conclusions:

  • An AF detection duration >6 min and AF burden >0.1% are proposed as standardized outcome definitions.
  • This standardization will enhance the reliability and comparability of future AF studies.
  • ICM technology provides valuable data for refining AF management and treatment assessment.
Abstract

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