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A traumatic brain injury (TBI), also known as an intracranial injury, is an injury to the brain caused by an external force. TBI can be classified based on severity ranging from mild traumatic brain injury (mTBI/concussion) to severe traumatic brain injury. [ 5 ]
The terms traumatic brain injury and head injury are often used interchangeably in the medical literature. [1] Because head injuries cover such a broad scope of injuries, there are many causes—including accidents, falls, physical assault, or traffic accidents—that can cause head injuries.
Diffuse axonal injury after a motorcycle accident. MRI after 3 days: on T1-weighted images the injury is barely visible. On the FLAIR, DWI and T2*-weighted images a small bleed is identifiable. DAI is difficult to detect since it does not show up well on CT scans or with other macroscopic imaging techniques, though it shows up microscopically. [9]
A concussion, also known as a mild traumatic brain injury (mTBI), is a head injury that temporarily affects brain functioning. [8] Symptoms may include headache, dizziness, difficulty with thinking and concentration, sleep disturbances, mood changes, a brief period of memory loss, brief loss of consciousness; problems with balance; nausea; blurred vision; and mood changes.
The changes in microcirculation, impaired auto-regulation, cerebral edema, and axonal injury start as soon as head injury occurs and manifest as clinical, biochemical, and radiological changes. Proper therapeutic management of brain injury is based on correct diagnosis and appreciation of the temporal course of the disease process.
Share your questions about football and head injuries and CNN Chief Medical Correspondent Dr. Sanjay Gupta may answer in an upcoming video. (RobMattingley/E+/Getty Images)
They normally appear between 48 and 72 hours (2-3 days) after the injury. [3] It is recommended that the patient not blow their nose, cough vigorously, or strain, to prevent further tearing of the meninges. [4] Raccoon eyes may be bilateral or unilateral. [5]
The last-minute filing details the injuries sustained by Paul and Maggie Murdaugh based on autopsy information, photos of the victims and evidence collected by the crime scene investigators.