Electrophysiology CINRE, hospital BORY
Atrial Fibrillation: Guidelines (2026) Compendium / 1.2 Methodology of Guidelines for Atrial Fibrillation

Methodology of Guidelines for Atrial Fibrillation


Atrial fibrillation (AF) is the most common arrhythmia.

The prevalence in the population is 2–4%.

Most cardiology societies (European, American, etc.) have their own guidelines that direct the diagnosis and treatment of patients with AF. Individual countries adopt these guidelines, modify them, or develop their own.

Each cardiology guideline for the diagnosis and treatment of AF is based on available data from studies, publications, and expert opinions of cardiologists.

The compendium of guidelines for AF (2026) was developed primarily from the following sources:

Infographic illustrating the prevalence of atrial fibrillation in the general population at approximately 2–4%.

The compendium of guidelines for AF (2026) serves as a supplementary aid for physicians who diagnose and treat patients with AF.

The author of the compendium of guidelines for AF (2026), Peter Blahut, accepts no responsibility for the diagnosis and treatment of patients with AF.

Responsibility for the diagnosis and treatment of a patient with AF lies exclusively with the treating physician.


These guidelines are unofficial and do not represent formal guidelines issued by any professional cardiology society. They are intended for educational and informational purposes only.

Peter Blahut, MD

Peter Blahut, MD (Twitter(X), LinkedIn, PubMed)