Do corticosteroids (steroids) exacerbate atrial fibrillation (a-fib)?

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Last updated: March 24, 2025View editorial policy

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From the Guidelines

Corticosteroids can exacerbate atrial fibrillation (A-fib) in patients with certain risk factors, such as bronchial asthma, COPD, rheumatic, allergic diseases, or hemoblastoses, as evidenced by a recent narrative review published in 2024 1.

Key Points to Consider

  • The relationship between corticosteroids and A-fib is complex and may involve multiple factors, including changes in cardiac autonomic tone, atrial electrophysiological and structural remodeling, and the presence of underlying cardiovascular disease or other comorbidities.
  • According to the study, patients with certain conditions, such as bronchial asthma, COPD, rheumatic, allergic diseases, or hemoblastoses, may be at higher risk of developing A-fib when treated with corticosteroids 1.
  • The study highlights the importance of reviewing the pharmacological history of patients with new-onset A-fib to identify potential drug-induced causes, including corticosteroids 1.

Clinical Implications

  • Clinicians should be aware of the potential risk of A-fib exacerbation when prescribing corticosteroids to patients with certain risk factors, and consider alternative treatments or closer monitoring of cardiac function and electrolytes.
  • Regular monitoring of electrolytes, blood pressure, and heart rhythm is crucial during steroid therapy, especially for patients with cardiac risk factors.
  • The use of corticosteroids should be tailored to the individual patient's needs, with the goal of minimizing the risk of A-fib exacerbation while still achieving the desired therapeutic effect.

From the Research

Corticosteroids and Atrial Fibrillation

  • There are no research papers provided that directly investigate the relationship between corticosteroids (steroids) and atrial fibrillation (a-fib) to assist in answering this question.
  • The provided studies focus on the use of beta-blockers 2, 3, exercise-based cardiac rehabilitation 4, and antiarrhythmic drugs 5, 6 in the management of atrial fibrillation, but do not mention corticosteroids.
  • Therefore, it is not possible to determine the effect of corticosteroids on atrial fibrillation based on the provided evidence.

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Research

Use of beta-blockers in atrial fibrillation.

American journal of cardiovascular drugs : drugs, devices, and other interventions, 2002

Research

Beta-blockers in atrial fibrillation-trying to make sense of unsettling results.

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

Research

Exercise-based cardiac rehabilitation for adults with atrial fibrillation.

The Cochrane database of systematic reviews, 2024

Research

Flecainide-metoprolol combination reduces atrial fibrillation clinical recurrences and improves tolerability at 1-year follow-up in persistent symptomatic atrial fibrillation.

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, 2016

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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