Related Experiment Video

Updated: May 10, 2026

A Rat Carotid Artery Pressure-Controlled Segmental Balloon Injury with Periadventitial Therapeutic Application
06:53

A Rat Carotid Artery Pressure-Controlled Segmental Balloon Injury with Periadventitial Therapeutic Application

Published on: July 9, 2020

Cerebral hyperperfusion syndrome: a novel presentation of internal carotid artery dissection

João Pinho1, Sofia Rocha, Sara Varanda

  • 1Neurology Department, Hospital de Braga, Portugal. jdpinho@gmail.com

Neurology
|July 5, 2013
PubMed

Insights

Cervical artery dissection (CeAD) affects middle-aged individuals, with an incidence of 2.6-3.0 per 100,000 annually. Internal carotid artery dissection (ICAD) commonly causes stroke, TIA, and neck pain, and can lead to cerebral hyperperfusion post-revascularization.

Area of Science:

  • Neurology
  • Vascular Surgery
  • Radiology

Background:

  • Cervical artery dissection (CeAD), particularly internal carotid artery dissection (ICAD), predominantly affects middle-aged adults.
  • The annual incidence of CeAD is estimated between 2.6 and 3.0 per 100,000 individuals.
  • ICAD manifestations frequently include ischemic stroke and transient ischemic attack (TIA), alongside symptoms like headache, neck pain, and Horner syndrome.

Observation:

  • Cerebral hyperperfusion syndrome is a recognized complication following carotid artery revascularization procedures.
  • This syndrome is believed to arise from impaired cerebral vascular autoregulation.
  • Factors contributing to impaired autoregulation are thought to be multifactorial.

Findings:

  • Internal carotid artery dissection (ICAD) presents with ischemic stroke and TIA in over 70% of patients.
  • Other clinical signs of ICAD include headache, neck pain, Horner syndrome, cranial nerve palsy, and pulsatile tinnitus.
  • Subarachnoid hemorrhage is a rare but possible consequence of ICAD.

Implications:

  • Understanding CeAD and ICAD is crucial for timely diagnosis and management of cerebrovascular events.
  • Recognizing the risk of cerebral hyperperfusion post-revascularization is vital for preventing neurological complications.
  • Further research into the mechanisms of impaired cerebral autoregulation may improve patient outcomes after carotid interventions.

More Related Videos

Permanent Cerebral Vessel Occlusion via Double Ligature and Transection08:22

Permanent Cerebral Vessel Occlusion via Double Ligature and Transection

Published on: July 21, 2013

Related Concept Videos

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...
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...
Increased Intracranial Pressure ll: Pathophysiology01:29

Increased Intracranial Pressure ll: Pathophysiology

Increased intracranial pressure (ICP) refers to a potentially life-threatening rise in pressure inside the skull. This usually happens when there is a major change in the volume of brain tissue, blood, or cerebrospinal fluid (CSF) — the three components inside the skull. According to the Monro-Kellie doctrine, if the volume of one component increases, the volumes of the other components must decrease to maintain normal pressure. If this does not happen, ICP rises.The process often begins with...
Increased Intracranial Pressure l: Introduction01:14

Increased Intracranial Pressure l: Introduction

Intracranial hypertension is a sustained elevation of intracranial pressure (ICP) above 22 mm Hg. In supine adults, normal ICP is ~7–15 mm Hg.The rigid, nonexpandable cranium contains three components—brain tissue, blood, and cerebrospinal fluid (CSF)—that total ~1,700 mL in a typical adult: 1,400 mL brain (~80%), 150 mL blood (~10%), and 150 mL CSF (~10%). According to the Monro–Kellie doctrine, total intracranial volume is effectively fixed. When one component expands, CSF and venous blood...
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...