Syncope Associated With Alternating Fascicular Block in an Elderly Woman: A Case Report

Francesca Cali1, Goitom Weldearegay2, Chris Sani2

  • 1Internal Medicine, State University of New York Downstate Health Sciences University, Brooklyn, USA.

Cureus
|April 24, 2026
PubMed
Summary

Alternating fascicular block (AFB) can indicate serious heart conduction disease, often causing syncope. Early pacemaker implantation is recommended for symptomatic patients, even without explicit guidelines.

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