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Related Concept Videos

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

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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...

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Modeling Posthemorrhagic Hydrocephalus of Prematurity in Rats
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Does ventricular opening promote remote cerebellar haemorrhage?

Ibrahim Ziyal1, Burcak Bilginer, Kivilcim Yavuz

  • 1Department of Neurosurgery, Faculty of Medicine, Hacettepe University, Ankara, Turkey.

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Remote cerebellar hemorrhage is a rare but serious complication following brain surgery. Early recognition is crucial for managing this condition, which can arise from cerebrospinal fluid loss during procedures.

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Area of Science:

  • Neurosurgery
  • Neurology
  • Neuroradiology

Background:

  • Cerebellar hemorrhage is a rare complication post-supratentorial craniotomy.
  • High morbidity and mortality rates necessitate early diagnosis and awareness.

Observation:

  • A 30-year-old male with multiple intracranial cavernomas developed remote cerebellar hemorrhage (RCH).
  • This occurred after surgical removal of a symptomatic left temporal lesion.
  • The ventricle wall was opened, leading to excessive cerebrospinal fluid (CSF) drainage.

Findings:

  • The RCH was attributed to the opening of the ventricle wall and significant CSF loss during the procedure.
  • This case highlights a potential mechanism for delayed cerebellar complications after supratentorial surgery.

Implications:

  • Increased awareness of RCH is vital for neurosurgeons and neurologists.
  • Prompt diagnosis and management can improve patient outcomes for this rare complication.
  • Understanding the link between CSF dynamics and RCH may refine surgical techniques.