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Pathophysiology of traumatic brain injury.

08:00 EDT 1st July 2013 | BioPortfolio

Summary of "Pathophysiology of traumatic brain injury."

Traumatic brain injury (TBI) is considered an epidemic that continues to compromise the welfare of humankind. Despite the extensive efforts invested in countering this clinical health problem, current clinical science and technology still fall short of providing a pharmacological cure for TBI rendering tens of thousands of TBI patients vulnerable to its detrimental sequelae. Over the past 30 years, the understanding of the pathophysiological mechanisms of TBI indicates that the pathology of TBI is biphasic. It comprises 2 injuries; the primary and the secondary injuries. The primary injury occurs simultaneously with the impact that caused the injury, which explains why this injury is not amenable to acute intervention. Whereas the secondary injury is a composite of interwoven pathophysiological responses that commence after the initial trauma leading to delayed, non-mechanical impairment of neuronal structure and function. In this review, we aim to highlight the main pathophysiological mechanisms that take place in the primary and secondary phases of traumatic brain injury.

Affiliation

Department of Anatomy and Cell Biology, College of Medicine, Jordan University of Science and Technology, PO Box 3030, Irbid 22110, Jordan. Tel. +962 772040491. Fax. +962 (2) 7201064. E-mail: agmustafa@just.edu.jo.

Journal Details

This article was published in the following journal.

Name: Neurosciences (Riyadh, Saudi Arabia)
ISSN: 1319-6138
Pages: 222-34

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Medical and Biotech [MESH] Definitions

Prolonged unconsciousness from which the individual cannot be aroused, associated with traumatic injuries to the BRAIN. This may be defined as unconsciousness persisting for 6 hours or longer. Coma results from injury to both cerebral hemispheres or the RETICULAR FORMATION of the BRAIN STEM. Contributing mechanisms include DIFFUSE AXONAL INJURY and BRAIN EDEMA. (From J Neurotrauma 1997 Oct;14(10):699-713)

A form of acquired brain injury which occurs when a sudden trauma causes damage to the brain.

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Traumatic injuries to the cranium where the integrity of the skull is not compromised and no bone fragments or other objects penetrate the skull and dura mater. This frequently results in mechanical injury being transmitted to intracranial structures which may produce traumatic brain injuries, hemorrhage, or cranial nerve injury. (From Rowland, Merritt's Textbook of Neurology, 9th ed, p417)

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