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Related Concept Videos

Cellular Injury I: Introduction01:00

Cellular Injury I: Introduction

Cellular injury occurs when a cell cannot maintain homeostasis or adapt to stressors such as hypoxia, toxins, or trauma. Depending on severity and duration, injury may be reversible, allowing recovery, or irreversible, leading to cell death.General Mechanisms of Cell InjuryAlthough causes vary, most cellular injuries arise from a few key mechanisms that disrupt essential functions and often amplify one another. Cell survival depends on the extent and balance of these disturbances.ATP depletion...
Flail Chest-II01:26

Flail Chest-II

Managing flail chest, a condition characterized by a segment of the chest wall moving independently from the rest of the thoracic cage, requires a comprehensive approach. It includes a thorough assessment of the patient's condition, a diagnostic evaluation to determine the extent of the injury, and the implementation of appropriate medical interventions tailored to the individual's needs.
Assessment:
1. Clinical Evaluation:
History:
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...
Cellular Injury II: Classification01:21

Cellular Injury II: Classification

Cellular injury is any process that disrupts a cell’s ability to maintain homeostasis, leading to structural or functional changes. It is broadly classified based on etiology (cause) and mechanism of damage.Classification by EtiologyCellular injury may result from several causes. Hypoxic injury happens due to reduced oxygen delivery, most commonly from inadequate blood supply, such as arterial obstruction; for example, coronary artery thrombosis can cause myocardial infarction. Chemical injury...
Secondary Spinal Cord Injury llI: Pathophysiology01:25

Secondary Spinal Cord Injury llI: Pathophysiology

Early Ischemia and Ionic ImbalanceWithin minutes of spinal cord injury, a secondary cascade begins, progressing over hours to weeks. Vascular damage reduces blood flow, causing ischemia and mitochondrial dysfunction. ATP depletion leads to ion pump failure, membrane depolarization, sodium influx, potassium efflux, and water accumulation, resulting in cellular swelling. Increased intracellular calcium further disrupts mitochondria and accelerates cellular injury.Excitotoxicity and Neuronal...
Spinal Cord Injury ll: Pathophysiology01:14

Spinal Cord Injury ll: Pathophysiology

Spinal cord injury progresses through two interconnected phases: primary injury and secondary injury.Primary InjuryPrimary injury happens at the moment of trauma and involves immediate mechanical damage to the spinal cord.Compression happens when broken vertebrae, herniated discs, or accumulating blood (such as a hematoma) press directly against the spinal cord, distorting its normal shape and function. In cases of contusion, the cord is bruised by a blunt force (like penetrating injuries or...

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Updated: May 24, 2026

Evaluating Primary Blast Effects In Vitro
10:51

Evaluating Primary Blast Effects In Vitro

Published on: September 18, 2017

Primary blast injuries--an updated concise review.

Daniel Dante Yeh1, William P Schecter2

  • 1Department of Surgery, Harvard Medical School, Massachusetts General Hospital, 165 Cambridge St. #810, Boston, MA, 02114, USA. dyeh2@partners.org.

World Journal of Surgery
|March 14, 2012
PubMed
Summary
This summary is machine-generated.

Civilian blast injuries are rising, requiring clinicians to understand diverse trauma and management. Early blast lung injury needs lung-protective ventilation, and blast brain injury is more common than thought.

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Published on: November 6, 2020

Area of Science:

  • Trauma surgery
  • Emergency medicine
  • Blast injury research

Background:

  • Blast injuries are increasingly prevalent in civilian populations.
  • Understanding the full spectrum of blast-related trauma and effective management is crucial for clinicians.
  • Multisystem trauma, involving both blunt and penetrating injuries, is common in blast incidents.

Purpose of the Study:

  • To outline the spectrum of blast injuries encountered in civilian settings.
  • To discuss essential management strategies for blast trauma.
  • To highlight key considerations for specific blast-related injuries like blast lung and brain injury.

Main Methods:

  • Review of clinical presentations and outcomes associated with blast injuries.
  • Analysis of injury patterns, emphasizing the role of enclosed spaces in primary blast effects.
  • Evaluation of diagnostic markers and therapeutic interventions.

Main Results:

  • Explosions in confined environments elevate the risk of primary blast injuries.
  • Ruptured tympanic membranes are unreliable indicators of severe primary blast injury.
  • Blast lung injury presents early and necessitates lung-protective ventilation strategies.
  • Blast-induced brain injury is a more frequent occurrence than previously recognized.

Conclusions:

  • Clinicians must be prepared for multisystem trauma in blast injury cases.
  • Early recognition and management of blast lung injury are critical.
  • The incidence and significance of blast brain injury warrant increased clinical attention.