Cognitive impairments in traumatic brain injuries: an overview of epidemiology, pathophysiology, assessment, and rehabilitation

Traumatic brain injury (TBI) is a significant cause of morbidity and mortality worldwide. Cognitive impairments following TBI are the most disabling and prevalent after-effects. These impairments have substantial and lasting implications on an individual's daily functioning and quality of life. In the acute and chronic phases after TBI, they can affect various cognitive domains, including attention, executive functions, learning and memory, language, perceptual-motor function, and social cognition. The significance of these cognitive deficits is underscored by their association with difficulties in vocational reintegration, social interactions, and overall independence. Furthermore, the long-term consequences of TBI-related cognitive deficits extend to increased risk for mood disorders. Addressing these challenges necessitates practical assessment and management. Comprehensive neuropsychological assessments play a pivotal role in diagnosing and characterizing cognitive deficits. In addition to medication, cognitive rehabilitation therapy suggests using rehabilitation methods such as cognitive training, compensatory strategies, and assistive technologies. By recognizing the substantial impact of cognitive impairments post-TBI and implementing evidence-based techniques, clinicians and caregivers can optimize recovery and enhance the quality of life for those affected. This article aims to provide an overview of the epidemiology, pathophysiology, assessment, rehabilitation approaches, and challenges of cognitive impairment in patients with TBI.