Head injuries, also referred to as traumatic brain injuries, are the result of a sudden trauma. This may include a hit to the head, any jarring event that shakes the brain inside the skull, or an object piercing the skull and damaging the brain tissue. Doctors often use the terms “head injury” and “traumatic brain injury” interchangeably.
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A concussion is a mild form of a traumatic brain injury. It is caused by a blow to the head or the body that shakes the brain inside the skull, which can damage brain tissue and disrupt brain function. A concussion may result from a fall, a car accident, or an assault. Increasingly, this injury is being seen in young people as a consequence of involvement in sports, such as football, soccer, hockey, lacrosse, gymnastics, and skiing.
At the Concussion Center, our experts diagnose concussion in children, who receive treatment through Hassenfeld Children’s Hospital at NYU Langone,and adults, determining the best course of treatment for each person.
Most concussions do not result in loss of consciousness, and many people with a concussion recover within a few days to several weeks. Signs and symptoms of a serious traumatic brain injury that requires emergency attention may include:
Some head injuries result in serious complications, such as bleeding in the brain tissue and the layers that surround the brain.
A person with a more severe head injury may have these same signs and symptoms, in addition to the following:
In rare circumstances, some people have no symptoms for hours or even days after a concussion. However, it is important that anyone with a head injury be evaluated immediately to reduce the risk of serious complications, such as seizures, changes in cognitive ability, or bleeding or swelling in the brain.
Doctors at the Concussion Center evaluate and, if necessary, manage any symptoms caused by injuries to the head and brain.
There is no single test used to diagnose a concussion. If your NYU Langone doctor suspects a concussion, he or she may perform a physical exam to check your strength, balance, coordination, and reflexes.
Your doctor also asks questions about your medical history, including details about the injury—its cause and when it occurred, for example—and any symptoms you have noticed. Your doctor may also ask questions that test your ability to pay attention, learn, remember, and solve problems.
The following tools may also be used in making a diagnosis.
A CT scan is a type of X-ray that creates detailed images of your tissue and internal organs. These images can show whether your brain is bruised, swollen, or bleeding.
A doctor may order an MRI scan to better view the brain and determine whether there is any swelling or bleeding. MRI uses a magnetic field and radio waves to create two- or three-dimensional pictures that may reveal smaller areas of bleeding and bruising in the brain.
Evidence of a concussion may not always be visible on MRI or CT scans, so a doctor may perform neuropsychological tests to determine if you are having difficulty with cognition and memory after a concussion. These tests may also detect any emotional changes.
A neuropsychological test may involve answering questions or performing tasks. For example, to test for attention span and memory, the doctor might ask you to repeat a series of numbers, letters, or words. To test for language and speech skills, you might be asked to name the objects in pictures or as many words as you can think of that begin with a certain letter.
To help diagnose a brain injury and pinpoint its location in the brain, NYU Langone doctors might perform a neurodiagnostic test called EyeBoxCNS to track eye movements. A person with a suspected brain injury watches a small picture move on a computer screen for a few minutes while a device tracks the person’s eye movements.
Pioneered at NYU Langone, the technology detects weakness in the nerves that move the eye. This correlates to the location and nature of the brain injury, helping our doctors to better develop a treatment plan.
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