Pharmacologic Treatment of Neurobehavioral Sequelae Following Traumatic Brain Injury
Jessica Traeger, Brian M. Hoffman, Jennifer Misencik, Alan Hoffer, Jason Makii
Abstract
Traumatic brain injury (TBI) is a leading cause of disability in the United States. With decreasing mortality rates, a higher number of patients are impacted by long-term neuropsychiatric sequelae, such as cognitive deficits, depression, anxiety, and sleep-wake disorders. These sequelae are primarily driven by the disruption of key neurotransmitter homeostasis including dopamine, norepinephrine, serotonin, and acetylcholine. Neurostimulants are centrally acting medications used to assist in restoring these neurotransmitter abnormalities and are pharmacologic options to ameliorate symptoms in post-TBI patients. Examples of neurostimulants include amantadine, selective serotonin reuptake inhibitors, tricyclic antidepressants, central stimulants (ie, methylphenidate), modafinil, and donepezil. Large, well-powered studies have not been performed to validate their use in patients with TBI, leaving uncertainty for these agents' place in therapy. Current practice is driven by consideration of patient-specific factors to select the most appropriate agent. This review provides clinicians with a summary of the available literature on neurostimulants following TBI to guide appropriate usage to help improve patients' symptoms and optimize safety.