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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...
Cerebral Edema ll: Pathophysiology01:22

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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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Modeling Encephalopathy of Prematurity Using Prenatal Hypoxia-ischemia with Intra-amniotic Lipopolysaccharide in Rats
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Intraventricular Hemorrhage and Survival, Multimorbidity, and Neurodevelopment.

Philippa Rees1, Chris Gale2, Cheryl Battersby2

  • 1Population Policy and Practice, Great Ormond Street UCL Institute of Child Health, London, United Kingdom.

JAMA Network Open
|January 6, 2025
PubMed
Summary

Intraventricular hemorrhage (IVH) in preterm infants significantly impacts neurodevelopmental outcomes. High-grade IVH drastically reduces survival without impairment, while low-grade IVH also shows negative effects, highlighting the need for continued research.

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Area of Science:

  • Neonatal neurology
  • Developmental pediatrics
  • Public health

Background:

  • Intraventricular hemorrhage (IVH) is a major complication of prematurity.
  • The impact of IVH severity on neurodevelopment in contemporary care is not fully understood.

Purpose of the Study:

  • To analyze national trends in IVH diagnosis.
  • To assess the association between IVH and neurodevelopmental outcomes at 2 years of age.

Main Methods:

  • A UK-wide cohort study of infants born before 29 weeks' gestation (2013-2019).
  • Included infants with any grade of IVH, matched with controls.
  • Neurodevelopmental outcomes assessed at 2 years corrected age.

Main Results:

  • Incidence of IVH increased slightly between 2013-2019.
  • High-grade IVH significantly reduced survival without neurodevelopmental impairment (NDI) by 74%.
  • Low-grade IVH showed a smaller reduction (12%) in survival without NDI, with grade 2 IVH accounting for the association.

Conclusions:

  • IVH remains a significant concern for preterm infants, affecting neurodevelopment.
  • Findings provide crucial data for family counseling regarding IVH risks.
  • Further long-term follow-up is needed to understand the full impact of IVH.