Diffuse Axonal Injury (Brain)

Diffuse Axonal Injury (DAI) is a type of brain damage that happens when the brain is rapidly shaken or twisted, often due to a serious head injury like a car accident or a fall. It affects the brain's nerve fibers, which are responsible for sending signals between different parts of the brain and spinal cord. This injury can cause widespread damage, leading to problems with thinking, movement, and consciousness. People with DAI may experience a loss of awareness or coma because the injury disrupts the brain's ability to communicate properly. The damage is often invisible on regular scans but can have serious effects on a person's health and recovery.

Diffuse Axonal Injury (DAI) is a form of traumatic brain injury characterized by widespread shearing and tearing of axons in the white matter tracts due to rapid acceleration-deceleration forces or rotational injury. It commonly results from high-velocity trauma such as motor vehicle collisions or falls. The injury disrupts axonal transport, leading to axonal swelling, disconnection, and secondary neuronal death. Clinically, DAI is a major cause of prolonged coma and persistent neurological deficits after trauma. It primarily affects the corpus callosum, brainstem, and cerebral white matter. The severity of DAI correlates with the extent of axonal damage and is a critical determinant of patient prognosis.