Accession Number : ADA617599


Title :   ANAM4 TBI Reaction Time-Based Tests have Prognostic Utility for Acute Concussion


Descriptive Note : Journal article


Corporate Author : NAVAL HEALTH RESEARCH CENTER SAN DIEGO CA


Personal Author(s) : Norris, James N ; Carr, Walter ; Herzig, Thomas ; Labrie, D W ; Sams, Richard


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a617599.pdf


Report Date : Jul 2013


Pagination or Media Count : 11


Abstract : The Concussion Restoration Care Center has used the Automated Neuropsychological Assessment Metrics version 4 Traumatic Brain Injury (ANAM4 TBI) battery in clinical assessment of concussion. The study's aim is to evaluate the prognostic utility of the ANAM4 TBI. In 165 concussed active-duty personnel (all ultimately returned to duty) seen and tested on the ANAM4 TBI on days 3 and 5 from their injury, Spearman's rho statistics showed that all performance subtests (at day 5) were associated with fewer days return to duty (RTD), while concussion history or age did not. Kruskal- Wallis statistics showed that ANAM4 TBI and loss of consciousness were associated with increased RTD time; ANAM4 TBI reaction time-based subtests, collectively, showed a larger effect size. A survival analysis using a Kaplan-Meier plot showed that the lowest 25% on the reaction time-based subtests had a median RTD time of 19 days, while those in the upper 25% had a median RTD time of approximately 7 days. Results indicate that until validated neurocognitive testing is introduced, the ANAM4 TBI, especially reaction time based tests, has prognostic utility.


Descriptors :   *COMPUTER AIDED DIAGNOSIS , *CONCUSSION , *NEUROPHYSIOLOGY , *TRAUMATIC BRAIN INJURIES , ACTIVE DUTY , COMPUTERIZED SIMULATION , DIAGNOSIS(MEDICINE) , MILITARY MEDICINE , MILITARY PERSONNEL , PATIENTS , SIGNS AND SYMPTOMS , STATISTICAL ANALYSIS , STIMULATION(PHYSIOLOGY) , SURVIVAL(GENERAL)


Subject Categories : Anatomy and Physiology
      Medicine and Medical Research


Distribution Statement : APPROVED FOR PUBLIC RELEASE