It’s a leading cause of death and disability in America. It’s one of the most difficult injuries to predict, with a wide variety of symptoms that may last a few weeks or a lifetime. While this injury affects people of all ages, those older than 75 or younger than five years of age are most likely to receive emergency room treatment because of it.
Traumatic brain injuries lead to the deaths of about 155 people in the United States each day, the Centers for Disease Control and Prevention (CDC) report, and can leave long-lasting impacts not only on injured individuals, but on their families and communities as well.
As explained by the National Institute of Neurological Disorders and Stroke, traumatic brain injury is an acquired brain injury that occurs when sudden trauma causes damage to the brain. It can be caused when the head suddenly and violently hits an object, or when an object pierces the skull and penetrates the brain tissue. Some common traumatic brain injury symptoms such as:
As noted by the Brain Injury Association of America, the brain is made up of several different parts, each of which enables certain bodily functions. The difficulties that one might encounter during recovery from a brain injury differ depending on which part of the brain was injured. Here is a look at the functions served by each part of the brain and how an injury to that area may affect an individual:
Two events may occur after a person sustains a brain injury. First, the brain tissues react to the trauma through a series of biochemical responses. These responses then flood the brain, damaging and destroying brain cells. Depending on the severity of the injury, the injured person may also lose consciousness or experience coma, respiratory problems, or reduced motor functions. Approximately half of all severe brain injuries require surgeries to repair broken blood vessels in the brain or to remove damaged brain tissue.
The CDC reports that falls account for nearly half of all traumatic brain injuries, and disproportionately affects the oldest and youngest of the population. 81 percent of the traumatic brain injury-related visits to U.S. emergency departments by individuals over the age of 65 are the result of falls. Nearly half of the emergency department visits related to brain injuries and involving children 17 years old or younger were due to falls.
Another leading cause of brain injuries is being struck by an object. This cause accounts for around 17 percent of all brain injury-related emergency department visits. More than a quarter of brain injury-related emergency department visits in children 17 years old or younger involved the child getting struck by or against an object.
The two most common causes of brain injuries resulting in hospitalization were falls and motor vehicle accidents, accounting for a respective 52 percent and 20 percent of brain injuries requiring hospitalization. Hospitalization rates were higher among brain-injured patients aged 75 or older, or 4 years old or younger. For individuals aged 15 to 44 years old, motor vehicle crashes were the leading cause of brain injuries requiring hospitalization.
Brain injury-related deaths are also highest among those 75 years and older. Falls are the leading cause of brain injury-related death in those over 65. Self-harm was the most common cause of death for brain-injured individuals between the ages of 45 to 64.
The brain is unable to heal itself, which means that a person may never fully recover from a brain injury. Even though functions may stabilize, those that are controlled by the portion of the brain that was injured may continue to present challenges for the brain injured person for life.
The impact of a brain injury on a person’s ability to function properly is not in direct relation to the severity of the injury. Even those suffering “mild” brain injuries may experience permanent disability.
Some of the unconscious states that may be experienced by brain injured people include:
Waking up after a loss of consciousness or a consciousness disorder is not as neat or easy as it is portrayed on television and in movies. It is often a period of irritability or agitation for the injured person, as well as post-traumatic amnesia, which causes confusion, disorientation, and the inability to recall recent events.
Those who do not suffer from a consciousness disorder such as those listed above, may experience other disabilities, which become more pronounced as the level of severity of the injury increases. Some disabilities commonly experienced by brain injured people include:
Brain injuries increase the likelihood of other conditions, including: