Neurofilament Levels Linked to AF Risk - Scorecard - MDSpire

Neurofilament Levels Linked to AF Risk

Higher levels associated with stroke, death, and heart failure in long-term cohort

  • By

  • Andrea Surnit

  • March 30, 2026

  • 3 min

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Clinical Scorecard: Neurofilament Levels Linked to AF Risk

At a Glance

CategoryDetail
ConditionAtrial Fibrillation (AF)
Key MechanismsHigher serum neurofilament light chain (NfL) levels linked to increased risk of major vascular events and mortality.
Target PopulationPatients with atrial fibrillation, particularly those not receiving anticoagulation.
Care SettingMulticenter observational study in Switzerland.

Key Highlights

  • Each doubling of serum NfL levels associated with a 35% higher risk of major vascular events.
  • Major vascular event incidence rose from 14% in the lowest NfL quartile to 55% in the highest.
  • NfL levels linked to increased risks of nonfatal stroke, cardiovascular death, heart failure hospitalization, and all-cause mortality.
  • Stronger associations observed in patients not on anticoagulation and those without prior stroke or TIA.
  • NfL may serve as a noncardiac biomarker for identifying high-risk AF patients.

Guideline-Based Recommendations

Diagnosis

  • Measure serum NfL levels in patients with AF to assess risk.

Management

  • Consider monitoring NfL levels for risk stratification in AF patients.

Monitoring & Follow-up

  • Regular follow-up of NfL levels may help in predicting major vascular events.

Risks

  • Increased risk of cardiovascular death, stroke, and heart failure-related hospitalization with higher NfL levels.

Patient & Prescribing Data

Patients with atrial fibrillation enrolled in a cohort study.

Higher NfL levels indicate a need for closer monitoring and potential intervention.

Clinical Best Practices

  • Incorporate NfL level assessment into routine evaluations for AF patients.
  • Utilize NfL levels to enhance the ABC-AF risk score for better prediction of outcomes.

Related Resources & Content

Original Source(s)

Neurofilament Levels Linked to AF Risk

  • by Andrea Surnit

  • March 30, 2026

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