Related Experiment Video
Updated: Jul 3, 2026
05:32
Transient Middle Cerebral Artery Occlusion Model of Stroke
Published on: August 11, 2023
A Bilateral Carotid Web Presenting as Recurrent Transient Ischemic Attacks With Negative Initial Stroke Imaging: A
1Internal Medicine, Hospital Metropolitano, San Nicolás de los Garza, MEX.
Cureus
|July 2, 2026
Summary
Carotid webs (CWs) are a hidden cause of stroke and TIAs. Early diagnosis with vascular imaging is crucial for timely intervention and preventing recurrent events.
Area of Science:
- Vascular Neurology
- Cerebrovascular Disease
- Interventional Neuroradiology
Background:
- Carotid webs (CWs) are increasingly recognized as a cause of ischemic stroke and transient ischemic attacks (TIAs).
- They are often underdiagnosed due to subtle imaging findings and lack of significant carotid stenosis.
- CWs are intimal variants of fibromuscular dysplasia, potentially causing blood stasis and embolization.
Related Concept Videos
01:26Transient 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...
01:15Ischemic Stroke l: Introduction
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.