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Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
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Upstream effect for atrial fibrillation: still a dilemma?

Leonardo Calò1, Annamaria Martino, Luigi Sciarra

  • 1Division of Cardiology, Policlinico Casilino ASL RMB, Rome, Italy.

Pacing and Clinical Electrophysiology : PACE
|October 30, 2010
PubMed

Insights

Upstream therapy, targeting atrial remodeling with medications like ACE inhibitors and statins, offers a promising alternative to traditional treatments for atrial fibrillation. This approach influences the underlying substrate, improving long-term efficacy and reducing side effects associated with current therapies.

Area of Science:

  • Cardiology
  • Electrophysiology
  • Pharmacology

Background:

  • Atrial fibrillation (AF) is a prevalent clinical arrhythmia.
  • Current treatments, including ion channel blockers and ablative procedures, have limitations in efficacy, safety, and accessibility.
  • Atrial remodeling is a key factor in AF development and maintenance.

Purpose of the Study:

  • To review the mechanisms and clinical evidence of "upstream therapy" in managing atrial fibrillation.
  • To explore how upstream therapies influence atrial structural and electrical remodeling.
  • To discuss the potential of upstream therapy as a substrate-targeting strategy for AF.

Main Methods:

  • Literature review of "upstream therapy" agents and their impact on atrial fibrillation.
  • Analysis of mechanisms underlying atrial remodeling influenced by these agents.
  • Synthesis of clinical evidence supporting the efficacy of upstream therapy.

Main Results:

  • Upstream therapies, including ACE inhibitors, aldosterone antagonists, statins, glucocorticoids, and ω-3 fatty acids, target the substrate of AF.
  • These therapies modulate atrial structural and electrical remodeling, crucial for AF induction and maintenance.
  • Clinical evidence suggests potential long-term benefits and improved safety profiles compared to conventional treatments.

Conclusions:

  • Upstream therapy represents a significant shift towards targeting the underlying substrate of atrial fibrillation.
  • This approach holds promise for improving long-term management of AF by addressing remodeling processes.
  • Further research is needed to address open questions and optimize the clinical application of upstream therapies.

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