Psychiatric disorders such as depression and anxiety are common symptoms after a traumatic brain injury, but people may also have a history of such disorders before their injury. Having a psychiatric disorder in their history may not only distort a TBI survivor's symptoms, but it might also negatively affect outcome.
A recent study confirmed that TBI patients with a psychiatric history do have a poorer outcome than those without a psychiatric history, even a year after their injury. The researchers advised that clinicians should thoroughly investigate a patient's history so that they can provide a more intensive rehabilitation program and more active post-discharge monitoring to patients who have had a psychiatric disorder.
Gould KR, Ponsford JL, Johnston L, & Schonberger M. Relationship between psychiatric disorders and 1-year psychosocial outcome following traumatic brain injury. Journal of Head Trauma Rehabilitation. (January 2011).