Potential Biological Markers of Atrial Fibrillation: A Chance to Prevent Cryptogenic Stroke

Area of Science:

• Biomedical research
• Cardiology
• Neurology

Background:

• Stroke is a leading cause of death and disability worldwide.
• Ischemic stroke, the most common type, often lacks an identifiable cause (cryptogenic stroke).
• Paroxysmal atrial fibrillation is increasingly recognized as a significant contributor to cryptogenic strokes.

Purpose of the Study:

• To review recent advances in identifying biological markers for atrial fibrillation.
• To explore potential biomarkers for predicting arrhythmia and preventing cryptogenic strokes.
• To categorize biomarkers based on their structure and function.

Main Methods:

• Literature review of recent research on arrhythmia markers.
• Classification of biomarkers into four groups: inflammation, fibrosis, hormonal activity, and others.
• Analysis of biomarker potential for diagnosing transient arrhythmias.

Main Results:

• Biomarkers offer a potential alternative to expensive or compliance-dependent ECG monitoring for detecting atrial fibrillation.
• Identified four main categories of biomarkers: inflammation, fibrosis, hormonal, and other.
• No single optimal biomarker has been identified yet.

Conclusions:

• Biomarker research for atrial fibrillation is ongoing and crucial for managing cryptogenic stroke.
• Promising biomarkers, such as NT-proBNP/BNP, are emerging.
• Further research is needed to find an optimal biomarker for clinical use.