Cognitive Retraining in Traumatic Brain Injury: Experience from Tertiary Care Center in Southern India.

Traumatic brain injury (TBI) is a leading cause of mortality and chronic disability across the globe. This study aimed to understand the effects of cognitive retraining (CR) intervention on neuropsychological functions, symptom reporting, and quality of life in patients with moderate to severe TBI.  The present single-group intervention study with a pre-post design included 12 patients diagnosed with moderate to severe TBI within 3-24 months post injury. Outcome measures included National Institute of Mental Health and Neuro Sciences (NIMHANS) Neuropsychology Battery, Perceived Stress Scale, Rivermead Post-Concussion Symptom Questionnaire, World Health Organization Quality of Life Scale-Brief, and Visual Analogue Scale. All patients underwent a total of 20 sessions of hospital-based CR, spanning over a period of 2 months. The CR included tasks targeting to enhance processing speed, attention, executive function, learning, and memory. Outcome assessments were conducted at baseline and immediately at post intervention.  Mean, standard deviation, frequency, and percentage were used as measures of descriptive statistics. Pre- and post-intervention scores were compared using Wilcoxon signed-rank test.  The results showed that at post intervention, significant improvements were found in processing speed, working memory, planning, visuo-spatial construction, visual memory, and verbal encoding. Subjective symptom reporting, perceived stress, and quality of life in psychological domain also improved.  CR can be helpful in improving not only cognition but also symptom reporting and quality of life in moderate to severe TBI.