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Transient Ischemic Attack l: Introduction

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A transient ischemic attack (TIA) is a brief episode of neurological dysfunction caused by a temporary, focal reduction in cerebral blood flow. Although symptoms resemble those of an ischemic stroke, the interruption in perfusion is short-lived and does not cause permanent infarction. TIAs are clinically important because they often serve as early warning events for future stroke.Mechanisms of Transient Cerebral IschemiaTransient cerebral ischemia may arise through several mechanisms. One...

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Ischemic stroke is an acute cerebrovascular condition in which blood flow to a brain region is suddenly interrupted, leading to tissue infarction. Neurons depend on continuous oxygen and glucose supply, so even brief reductions in perfusion cause energy failure, ionic imbalance, and irreversible injury. Ischemic strokes are classified into thrombotic and embolic types based on their underlying mechanisms.Thrombotic MechanismsThrombotic stroke develops when a clot forms within a cerebral artery.

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Updated: Jun 11, 2026

Transient Middle Cerebral Artery Occlusion Model of Stroke

Transient Middle Cerebral Artery Occlusion Model of Stroke

Published on: August 11, 2023

Atypical temporal arteritis causing posterior circulation stroke.

C D Stark¹, A Hughes

¹Department of Neurology, Austin Hospital, 145 Studley Road, Heidelberg, Victoria 3084, Australia. catherine.stark@austin.org.au

Journal of Clinical Neuroscience : Official Journal of the Neurosurgical Society of Australasia

|July 15, 2010

Summary

This summary is machine-generated.

An 80-year-old woman experienced a posterior circulation infarct due to temporal arteritis. Atypical symptoms emphasize the need for early temporal artery biopsy and prompt treatment to improve patient outcomes.

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Area of Science:

Neurology
Vascular Medicine
Rheumatology

Background:

Temporal arteritis (Giant Cell Arteritis) is a vasculitis that can affect large and medium-sized arteries.
Posterior circulation infarcts are strokes affecting the brainstem, cerebellum, or occipital lobes.
Cerebral infarcts are a rare but serious complication of temporal arteritis.

Observation:

An 80-year-old woman presented with atypical clinical and laboratory features.
The patient was diagnosed with a posterior circulation infarct secondary to temporal arteritis.
Diagnosis was challenging due to the unusual presentation.

Findings:

The case underscores the importance of considering temporal artery biopsy in diagnosing temporal arteritis, even with atypical presentations.
Prompt intervention and treatment are crucial for managing complications like stroke.
Early diagnosis and treatment can lead to improved patient outcomes.

Implications:

This case highlights the need for a high index of suspicion for temporal arteritis in elderly patients presenting with neurological deficits.
Timely diagnosis through temporal artery biopsy and initiation of corticosteroid therapy can prevent devastating neurological sequelae.
Further research may elucidate atypical presentations of temporal arteritis and optimize diagnostic strategies.