Related Experiment Videos

[Temporal arteritis and cerebrovascular complications]

Hildegunn Øverlie1, Emilia Kerty

  • 1Medisinsk avdeling, Sykehuset Innlandet, 2819 Gjøvik. hildegunn.overlie@gmail.com

Insights

Giant cell arteritis can cause stroke even with high-dose steroids. Low-dose aspirin may help prevent these serious complications in affected patients.

Area of Science:

  • Rheumatology
  • Neurology
  • Vascular Medicine

Context:

  • Giant cell arteritis (GCA) is a systemic vasculitis affecting large and medium arteries.
  • GCA can lead to severe visual loss and cerebrovascular accidents like stroke.
  • Corticosteroid treatment is standard but may not prevent all ischemic complications.

Purpose:

  • To identify predictive factors for irreversible ischemic complications in GCA.
  • To review the literature on stroke as a complication of GCA.
  • To evaluate treatment strategies for GCA and stroke prevention.

Summary:

  • Stroke is a rare but serious neurologic complication of GCA, sometimes occurring despite high-dose corticosteroid therapy.
  • Predictive factors for stroke in GCA are not well-defined, with limited retrospective studies available.
  • Cranial ischemic complications may be inversely related to inflammatory response intensity.

Impact:

  • Highlights the risk of stroke in GCA patients, even with aggressive treatment.
  • Suggests considering low-dose aspirin as adjuvant therapy for GCA patients.
  • Emphasizes the need for large, randomized trials to optimize GCA management and prevent cerebrovascular events.
Abstract

Related Concept Videos

Transient Ischemic Attack l: Introduction01:26

Transient Ischemic Attack l: Introduction

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...
Hemorrhagic Stroke l: Introduction01:17

Hemorrhagic Stroke l: Introduction

A hemorrhagic stroke is an acute neurological event that occurs when a weakened cerebral blood vessel ruptures, allowing blood to accumulate within or around the brain. The sudden release of blood forms a focal hematoma that increases intracranial pressure, displaces neural tissue, and can obstruct cerebrospinal fluid pathways. These effects may be compounded by intraventricular extension of the hemorrhage, cerebral edema, or compression of adjacent structures, all of which contribute to...
Arteries of the Head and Neck01:26

Arteries of the Head and Neck

The human body's intricate network of arteries ensures that every organ system receives the necessary oxygen and nutrients for optimal function. The arterial network in the head and neck region is particularly complex, providing vital blood flow to the brain, eyes, and other critical structures. Prominent arteries in this region include the internal carotid arteries and the vertebral arteries.
The internal carotid arteries supply blood to the anterior portion of the cerebrum. They enter the...
Hemorrhagic Stroke ll: Pathophysiology01:29

Hemorrhagic Stroke ll: Pathophysiology

A hemorrhagic stroke develops when a cerebral blood vessel ruptures, allowing blood to escape into the surrounding brain tissue, as in intracerebral hemorrhage (ICH), or into the subarachnoid space, as in subarachnoid hemorrhage (SAH). Because the skull is a rigid compartment, the sudden presence of extravascular blood rapidly increases intracranial pressure and compresses adjacent neural structures, leading to immediate tissue injury and impaired cerebral perfusion.Mass Effect and Primary...
The Arch of Aorta01:10

The Arch of Aorta

The coronary arteries, originating from the ascending aorta, bifurcate from two sinuses located within the ascending aorta. Positioned just above the aortic semilunar valve, these sinuses house essential aortic baroreceptors and chemoreceptors, crucial for maintaining cardiac function. The left coronary artery and the right coronary artery branch off from the left posterior and anterior aortic sinuses, respectively.
Encircling the heart, the coronary arteries form a ring-like structure before...
Cerebral Edema ll: Pathophysiology01:22

Cerebral Edema ll: Pathophysiology

Vasogenic edema is a major form of cerebral edema characterized by abnormal accumulation of fluid in the brain’s extracellular space due to disruption of the blood–brain barrier (BBB). The BBB is a specialized structure composed of endothelial cells connected by tight junctions, supported by astrocytic endfeet and a basement membrane. Under normal conditions, it tightly regulates the movement of ions, proteins, and solutes between the bloodstream and brain parenchyma. When this barrier loses...