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Related Concept Videos

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...
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...
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...
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...
Cerebral Edema l: Introduction01:19

Cerebral Edema l: Introduction

Cerebral edema is a pathological increase in brain water content that disrupts intracranial pressure regulation and impairs neurological function. Because the cranial vault is rigid, even modest increases in tissue volume can compromise cerebral perfusion, distort neural structures, and initiate secondary injury. Cerebral edema develops through four principal mechanisms: vasogenic, cytotoxic, interstitial, and ionic.Vasogenic EdemaVasogenic edema arises from disruption of the blood–brain...
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...

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Related Experiment Video

Updated: May 10, 2026

Intrastriatal Injection of Autologous Blood or Clostridial Collagenase as Murine Models of Intracerebral Hemorrhage
09:41

Intrastriatal Injection of Autologous Blood or Clostridial Collagenase as Murine Models of Intracerebral Hemorrhage

Published on: July 3, 2014

Intracerebral hemorrhage.

Peter D Panagos1, Edward C Jauch, Joseph P Broderick

  • 1Department of Emergency Medicine, University of Cincinnati Medical Center, P.O. Box 67069, Cincinnati, OH 45267-0769, USA. panagopd@uc.edu

Emergency Medicine Clinics of North America
|October 17, 2002
PubMed
Summary
This summary is machine-generated.

Management of intracranial hemorrhage (ICH) varies among physicians. While research advances, emergency physicians play a critical role in prompt recognition and care for time-sensitive stroke conditions.

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Intrastriatal Injection of Autologous Blood or Clostridial Collagenase as Murine Models of Intracerebral Hemorrhage
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Published on: June 18, 2021

Area of Science:

  • Neurology
  • Neurosurgery
  • Emergency Medicine

Background:

  • Intracranial hemorrhage (ICH) management shows significant variation among neurologists, neurosurgeons, and emergency physicians.
  • Randomized clinical trials predominantly focus on subarachnoid hemorrhage (SAH) and acute ischemic stroke (AIS).
  • Established practice guidelines exist for ICH management, with ongoing research exploring new interventions.

Purpose of the Study:

  • To highlight the critical role of emergency physicians in the timely recognition and management of stroke conditions.
  • To underscore the time-dependent nature of interventions for SAH, AIS, and ICH.
  • To emphasize the evolving landscape of stroke care and the front-line position of emergency physicians.

Main Methods:

  • Review of current management practices for ICH.
  • Analysis of existing therapeutic trials for stroke conditions.
  • Discussion of the time-dependent nature of stroke interventions.

Main Results:

  • Significant variability exists in ICH management protocols.
  • Emergency physicians are crucial for prompt diagnosis and intervention in time-sensitive stroke cases.
  • Established guidelines and ongoing research are shaping ICH care.

Conclusions:

  • Emergency physicians are pivotal in the initial management of stroke patients.
  • Prompt recognition and intervention are essential for improving outcomes in SAH, AIS, and ICH.
  • The field of stroke care is dynamic, with emergency physicians at the forefront of patient management.