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Comparing efficacy and safety in catheter ablation strategies for atrial fibrillation: a network meta-analysis

Emmanouil Charitakis1, Silvia Metelli2, Lars O Karlsson3

  • 1Department of Cardiology and Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden. Emmanouil.charitakis@liu.se.

BMC Medicine
|May 31, 2022
PubMed
Abstract

Insights

Combining pulmonary vein isolation with other catheter ablation strategies, like autonomic modulation, significantly improves atrial fibrillation treatment efficacy without increasing safety risks. These enhanced approaches offer better outcomes for patients undergoing AF ablation.

Area of Science:

  • Cardiology
  • Interventional Electrophysiology

Background:

  • There is no established consensus on the most effective catheter ablation (CA) strategy for atrial fibrillation (AF).
  • Comparing different CA approaches is crucial for optimizing patient outcomes.

Purpose of the Study:

  • To conduct a network meta-analysis (NMA) comparing the efficacy and safety of various CA strategies for AF ablation.
  • To provide evidence-based guidance for selecting optimal CA techniques.

Main Methods:

  • Systematic literature search of PubMed, Web of Science, and CENTRAL up to October 5th, 2020.
  • Inclusion of randomized controlled trials (RCTs) comparing different CA approaches.
  • Efficacy defined by arrhythmia recurrence; safety by procedure-related complications (minimum 6-month follow-up).

Main Results:

  • Analysis of 67 RCTs (9871 patients) evaluating 19 CA strategies.
  • Pulmonary vein isolation (PVI) combined with renal denervation, ganglia-plexi ablation, additional ablation lines, or bi-atrial modification showed significantly reduced recurrence risk compared to PVI alone.
  • PVI-based strategies were superior to non-PVI approaches; no significant safety differences were observed.

Conclusions:

  • Combining PVI with strategies like autonomic modulation and additional ablation lines enhances efficacy for AF treatment.
  • These combined CA strategies are viable options for managing AF patients due to comparable safety profiles.
  • The NMA offers comprehensive comparative data for informed decision-making in AF ablation.
Keywords:
Antiarrhythmic drugsAtrial fibrillationCatheter ablationEfficacyNetwork meta-analysisSafety

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