What are the major signs and symptoms of a stroke affecting a branch of the posterior cerebral artery?

What are the symptoms of posterior cerebral stroke?

Common Symptoms of Posterior Circulation Stroke

Common presenting symptoms of PC stroke include vertigo, imbalance, unilateral limb weakness, slurred speech, double vision, headache, nausea, and vomiting. Exam findings include unilateral limb weakness, gait ataxia, limb ataxia, dysarthria, and nystagmus.

What is a posterior cerebral artery stroke?

Posterior cerebral artery syndrome is a condition whereby the blood supply from the posterior cerebral artery (PCA) is restricted, leading to a reduction of the function of the portions of the brain supplied by that vessel: the occipital lobe, the inferomedial temporal lobe, a large portion of the thalamus, and the …

What happens if posterior cerebral artery is blocked?

Symptoms of posterior cerebral artery stroke include contralateral homonymous hemianopia (due to occipital infarction), hemisensory loss (due to thalamic infarction) and hemi-body pain (usually burning in nature and due to thalamic infarction) 3. If bilateral, often there is reduced visual-motor coordination 3.

What causes posterior cerebral artery stroke?

The mechanism of PCA strokes are variable and include large artery disease, small artery disease, atherothrombosis of PCA, BA and VA, embolism (cardiac, aortic, coagulopathy), dissection, hemorrhagic, migraine, Moyamoya disease, fibromuscular dysplasia (FMD), mitochondrial disease, reversible cerebral vasoconstriction …

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How serious is a posterior Stroke?

Approximately 5% of TIA patients suffer a stroke within 48 hours, so prompt diagnosis is critical. Patients with posterior circulation TIA may have a higher stroke risk than those with anterior circulation TIA.

What are the five most common symptoms of posterior strokes?

What are the signs and symptoms of posterior cerebral artery (PCA) stroke?

  • Acute vision loss.
  • Confusion.
  • New onset posterior cranium headache.
  • Paresthesias.
  • Limb weakness.
  • Dizziness.
  • Nausea.
  • Memory loss.


How is posterior circulation stroke diagnosed?

HINTS Testing. HINTS testing is a three-part examination that consists of head impulse testing, nystagmus assessment, and test of skew. This test is the gold standard for diagnosis of posterior circulation strokes, as its sensitivity is higher than any imaging modality in the first 24-48 hours after symptom onset.

Which artery is most commonly involved in stroke?

The middle cerebral artery (MCA) is the most common artery involved in stroke. It supplies a large area of the lateral surface of the brain and part of the basal ganglia and the internal capsule via four segments (M1, M2, M3, and M4).

What part of the brain does the posterior cerebral artery supply?

The Posterior Cerebral Artery (PCA) supplies the occipital lobe, the inferior part of the temporal lobe, and various deep structures including the thalamus and the posterior limb of the internal capsule.

Where is a PCA stroke?

Deep or proximal PCA infarcts involve portions of the thalamus and midbrain. Thalamic lesions result in contralateral face and limb sensory loss. The midbrain cerebral peduncle carries corticospinal tract fibers that decussate caudally in the brainstem.

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What is posterior circulation stroke?

A posterior circulation stroke means the stroke affects the back area of your brain. This includes your brain stem, cerebellum (the area responsible for balance and coordination) and occiptal lobes (the area responsible for vision).

What is cerebellar stroke?

A cerebellar infarct (or cerebellar stroke) is a type of cerebrovascular event involving the posterior cranial fossa, specifically the cerebellum. Impaired perfusion reduces oxygen delivery and causes deficits in motor and balance control.

What is mental stroke?

Overview. A stroke occurs when the blood supply to part of your brain is interrupted or reduced, preventing brain tissue from getting oxygen and nutrients. Brain cells begin to die in minutes. A stroke is a medical emergency, and prompt treatment is crucial.

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