Neurofilament Levels Linked to AF Risk - Takeaways - MDSpire

Neurofilament Levels Linked to AF Risk

  • By

  • Andrea Surnit

  • March 30, 2026

  • 3 min

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  • 1

    Higher serum neurofilament light chain levels are linked to increased risk of major vascular events and mortality in atrial fibrillation patients.

  • 2

    Each doubling of serum neurofilament light chain levels correlates with a 35% higher risk of major vascular events over an 8-year follow-up.

  • 3

    Increased neurofilament levels are associated with higher risks of nonfatal stroke, cardiovascular death, heart failure hospitalization, and all-cause mortality.

  • 4

    The association between neurofilament levels and major vascular events is stronger in patients not on anticoagulation and those without prior stroke.

  • 5

    The study suggests serum neurofilament light chain may be a useful biomarker for identifying atrial fibrillation patients at higher risk for adverse outcomes.

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