Tics secondary to craniocerebral trauma

Area of Science:

• Neuroscience
• Neurology
• Trauma Research

Background:

• Craniocerebral trauma is a significant cause of acquired neurological disorders.
• The relationship between head injury and the development of movement disorders like tics is not fully understood.
• Understanding the neurobiological underpinnings of post-traumatic tics is crucial for diagnosis and management.

Observation:

• Three adult patients presented with new-onset multifocal motor and vocal tics following closed craniocerebral trauma.
• One patient exhibited significant obsessive-compulsive behaviors alongside tics.
• Symptoms appeared with a latency ranging from one day to several months post-trauma.

Findings:

• Standard magnetic resonance imaging (MRI) revealed no structural lesions in the basal ganglia or brainstem in any patient.
• One patient with severe head trauma showed extensive bifrontal leukoencephalopathy on MRI.
• These findings suggest that tics post-trauma may arise from diffuse white matter changes rather than focal lesions.

Implications:

• This case series highlights a potential, albeit rare, neurological consequence of craniocerebral trauma.
• It underscores the importance of considering head injury in the differential diagnosis of new-onset tic disorders.
• Further research into the mechanisms of traumatic brain injury-induced tics and associated conditions is warranted.