There are many cases of traumatic brain injury in the US. In fact, there are more than 1.5 million traumatic brain injuries prevalent in the US and about 1.2 million ER visits, 290,000 hospitalizations and at least 50,000 deaths due to this devastating disease. Most traumatic brain injuries occur secondary to falls and motor vehicle injuries. These types of injuries occur when there is an external force on the brain causing brain dysfunction.
A violent blow to the head is the main cause of these types of injuries. It can also be caused by penetrating trauma, such as with a bullet or shrapnel. Brain injury types can be mild, moderate or severe. Fortunately there are many more mild injuries than severe injuries. Traumatic injuries to the brain can have a wide range of psychological and physical effects. Patients can have symptoms immediately after the injury or delayed symptoms.