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Related Concept Videos

Hemorrhagic Stroke l: Introduction01:17

Hemorrhagic Stroke l: Introduction

4
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...
4
Hemorrhagic Stroke ll: Pathophysiology01:29

Hemorrhagic Stroke ll: Pathophysiology

6
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...
6
Stroke: Introduction and Types01:29

Stroke: Introduction and Types

7
A stroke is an acute neurological event caused by the sudden disruption of cerebral blood flow, leading to rapid loss of neuronal function. Neurons depend on continuous oxygen and glucose supply, so even brief interruptions can cause irreversible injury within minutes. Strokes are classified into ischemic and hemorrhagic types.Ischemic StrokeIschemic strokes are most common and occur due to arterial occlusion, depriving brain tissue of oxygen and nutrients. This leads to energy failure, ionic...
7
Ischemic Stroke ll: Pathophysiology01:15

Ischemic Stroke ll: Pathophysiology

5
An ischemic stroke occurs when a cerebral blood vessel becomes obstructed, most often by a thrombus or embolus, interrupting the delivery of oxygen and glucose to brain tissue. Because neurons rely on continuous aerobic metabolism, energy failure begins within minutes of reduced perfusion. The region receiving the least blood flow becomes the infarct core, an area of irreversible cellular death. Surrounding this core lies the penumbra, a zone of hypoperfused but still viable tissue that is...
5
Ischemic Stroke l: Introduction01:15

Ischemic Stroke l: Introduction

7
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.
7
Pharmacokinetics in Pediatric Patients: Drug Distribution01:17

Pharmacokinetics in Pediatric Patients: Drug Distribution

513
Drug distribution in the pediatric population exhibits unique challenges and considerations due to the physiological differences between children, particularly neonates and infants, and adults. A crucial aspect of pediatric pharmacology is understanding how these differences impact the pharmacokinetics of various drugs, necessitating age-specific dosing strategies to ensure efficacy and safety.Neonates and infants have a higher total body water content, ~75%–90% of their body weight,...
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Related Experiment Video

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Transient Middle Cerebral Artery Occlusion Model of Neonatal Stroke in P10 Rats
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Paediatric stroke: pressing issues and promising directions.

Adam Kirton1, Gabrielle deVeber2

  • 1Calgary Pediatric Stroke Program, Alberta Children's Hospital Research Institute, Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, AB, Canada.

The Lancet. Neurology
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Advances in pediatric stroke research offer hope for better prevention and treatment. Early recognition and understanding of stroke mechanisms in children are crucial for improved outcomes.

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Area of Science:

  • Pediatric Neurology
  • Neuroscience
  • Vascular Neurology

Background:

  • Stroke affects individuals across all age groups, presenting unique challenges in fetal, neonatal, and pediatric populations.
  • Despite recent advancements in pediatric stroke research and clinical care, significant knowledge gaps and ongoing controversies persist.
  • A deeper understanding of perinatal stroke pathobiology is essential for developing effective prevention strategies.

Purpose of the Study:

  • To highlight the need for enhanced understanding of childhood stroke mechanisms, including cerebral arteriopathies, to guide mechanism-specific treatments.
  • To discuss emerging clinical trials for neonatal sinovenous thrombosis and childhood arterial stroke, aiming for evidence-based therapeutic options.
  • To emphasize the importance of early stroke recognition in children for public and professional education, facilitating timely interventions.

Main Methods:

  • Review of recent advancements in pediatric stroke research.
  • Analysis of current understanding of stroke pathobiology in neonates and children.
  • Discussion of ongoing and emerging clinical trials in pediatric stroke.
  • Synthesis of evidence for early recognition and intervention strategies.

Main Results:

  • Substantial progress has been made in pediatric stroke research over the last decade.
  • Understanding of perinatal and childhood stroke mechanisms is still evolving.
  • Clinical trials are underway for neonatal and childhood stroke, with potential for new treatments.
  • Early recognition is identified as a critical educational target with significant translational potential.

Conclusions:

  • Further research into the pathobiology of perinatal and childhood stroke is necessary for prevention and targeted treatments.
  • Emerging clinical trials hold promise for evidence-based interventions in pediatric stroke.
  • Early detection and prompt application of neuroprotective, thrombolytic, antithrombotic, and rehabilitation strategies are key to improving outcomes for affected children.