Post-brain injury syndrome

After the acute trauma has resolved, patients with traumatic brain injury may still have many subjective symptoms that persist for a long time, yet clinically there are no definite positive neurological signs, and even CT, MRI, and other examinations reveal no abnormalities. These patients usually have mild or moderate closed craniocerebral injury, with generally good recovery after injury, but dizziness, headache, and varying degrees of autonomic dysfunction or psychiatric symptoms persist and do not resolve. If these symptoms persist for more than 3 months after injury without improvement, the condition is termed post-traumatic brain syndrome.