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✦ The Dispatch

Diagnostic challenges in posterior circulation ischemic stroke presenting with acute dizziness and vertigo

A dispatch from PubMed — filed

Posterior circulation stroke (PCS) is a common and clinically important cause of acute dizziness and vertigo, accounting for approximately 20-25% of all acute ischemic strokes. Because PCS frequently presents with non-specific, fluctuating, or isolated vestibular symptoms, it is about three times more likely to be initially missed in emergency care than anterior circulation stroke (ACS), with important consequences...

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✦ The floor

Discussion

Signed responses from readers of the wire.

✦ Clinical Takeaway ✦

Audiologists and vestibular clinicians should maintain a high index of suspicion for posterior circulation stroke in patients presenting with acute dizziness or vertigo and apply validated bedside tools (e.g., HINTS exam) to aid timely referral.

✦ Why It Matters ✦

Missed posterior circulation stroke presenting as dizziness is a known patient-safety issue; improved diagnostic frameworks directly reduce morbidity and mortality.

✦ Key Points ✦
  1. 01Posterior circulation strokes account for ~20–25% of all acute ischemic strokes.
  2. 02Acute dizziness and vertigo are common presenting symptoms that mimic inner-ear disorders.
  3. 03Misdiagnosis leads to delayed treatment and worse patient outcomes.
  4. 04Review covers diagnostic pitfalls and recommended clinical tools for differentiation.
  5. 05Bedside HINTS exam and neuroimaging strategies are key differentiators discussed.
✦ Claims & Evidence ✦

Posterior circulation ischemic stroke accounts for approximately 20–25% of acute ischemic strokes.

studysupported

Acute dizziness and vertigo presenting from posterior circulation stroke are frequently misdiagnosed as peripheral vestibular disorders.

studysupported
✦ Research metadata ✦
PMID
42851915
DOI
10.3389/fneur.2026.1960712.
Journal
Frontiers in Neurology
Publication type
review
Evidence level
5
Population
Patients presenting with acute dizziness and vertigo evaluated for posterior circulation ischemic stroke
Intervention
Diagnostic evaluation of posterior circulation ischemic stroke

Primary outcomes

Diagnostic accuracy in differentiating posterior circulation stroke from peripheral vestibular disorders; Identification of key diagnostic challenges and pitfalls

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