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Traumatic Brain Injury l: Introduction01:28

Traumatic Brain Injury l: Introduction

DefinitionTraumatic brain injury, or TBI, is a disturbance of normal brain function induced by an external mechanical force, such as a direct blow to the head or a penetrating injury. It can affect both brain structure and function, producing a wide range of clinical outcomes. TBI is a heterogeneous condition, meaning its effects may differ based on the type, location, and severity of the injury.Basis of ClassificationTBI is classified based on severity, injury mechanism, or pathophysiology. In...
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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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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...
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A brain abscess is a focal, intracerebral infection characterized by a localized collection of pus within the brain parenchyma, resulting from microbial invasion and the body’s inflammatory response. It progresses through stages: early and late cerebritis, followed by early and late capsule formation, reflecting tissue destruction, immune response, and eventual encapsulation.Etiology and PathogenesisCausative organisms vary with source and host factors, often involving polymicrobial infections,...
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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Assessing Changes in Synaptic Plasticity Using an Awake Closed-Head Injury Model of Mild Traumatic Brain Injury
09:49

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Published on: January 20, 2023

Abusive head trauma.

Bruce E Herman1, Kathi L Makoroff, Howard M Corneli

  • 1Division of Pediatric Emergency Medicine, Department of Pediatrics, University of Utah School of Medicine and Primary Children's Medical Center, Salt Lake City, UT, USA. bruce.herman@hsc.utah.edu

Pediatric Emergency Care
|January 6, 2011
PubMed
Summary
This summary is machine-generated.

Abusive head trauma is a critical concern in young children, often presenting subtly in emergency departments. Awareness of its diverse clinical signs is vital for prompt diagnosis and management by pediatric physicians.

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Area of Science:

  • Pediatrics
  • Emergency Medicine
  • Child Abuse

Background:

  • Abusive head trauma (AHT) is a significant cause of severe injury and death in infants and children.
  • Patients frequently seek initial medical care in emergency departments.
  • Recognizing AHT is crucial for pediatric emergency physicians due to varied presentations.

Purpose of the Study:

  • To provide a comprehensive overview of abusive head trauma.
  • To highlight the importance of physician awareness regarding AHT presentations.
  • To review key aspects of AHT including epidemiology, diagnosis, and management.

Main Methods:

  • Review of existing literature on abusive head trauma.
  • Synthesis of information regarding clinical findings, diagnostic approaches, and differential diagnoses.
  • Discussion of management strategies for AHT.

Main Results:

  • AHT presents with a wide spectrum of clinical findings, ranging from obvious to subtle.
  • Accurate diagnosis requires a high index of suspicion and consideration of differential diagnoses.
  • Effective management involves prompt recognition and appropriate medical intervention.

Conclusions:

  • Pediatric emergency physicians must be vigilant for signs of abusive head trauma.
  • Understanding the epidemiology and clinical spectrum of AHT is essential for early detection.
  • Timely diagnosis and management are critical to improving outcomes for affected children.