Assessing the Limits of Post-Traumatic Amnesia related to injuries in the United States, with an estimated 1.7 million people sustaining a head injury each year (Center for Disease Control and Prevention, 2010). The classification of brain injuries (mild, moderate and severe) is mainly carried out using the Glasgow Coma Scale (GCS), which is widely accepted for assessing the severity of brain injuries (Bauer and Fritz, 2004). Recent studies suggest that almost all patients with moderate or severe head injury have a recovery period during which they are responsive but confused. This condition is commonly called post-traumatic amnesia. Posttraumatic amnesia (PTA) is defined as “a failure of ongoing memory” (Artiola et al., 1980; p. 377). PTA is often cited as the best method for codifying the degree, level of recovery, and outcomes after closed head injury (e.g., Artieola et al., 1980; Tate, Pfaff, & Jurjevic, 2000). PTA duration is a better indicator of outcome than early injury scales such as the GCS score (Richardson et al., 2009). This analysis will examine the limitations of the general PTA assessment scale and explore the advantages and limitations of retrospective and prospective methods. methods used to measure PTA duration. There is a frequent hypothesis that coma depth and extent and PTA are concomitant, reflecting different facets of a common mechanism (Wilson, Teasdale, Hadley, Wiedmann, & Lang, 1993). The researchers say that when PTA and coma were juxtaposed, their correlation was found to be only moderately closer. Furthermore, they claim that previous studies exploring PTA and coma as predictors of outcomes...... middle of article...... is this reliable? http://www.ncbi.nlm.nih.gov/pmc/articles/PMC486693/pdf/jnnpsyc00001-0046.pdfMcMillan, TM, Jongen, ELMM, Greenwood, and RJ (1996). Assessment of post-traumatic amnesia after severe closed head trauma: retrospective or prospective? Journal of Neurology, Neurosurgery, and Psychiatry, 60, 422-427http://jnnp.bmj.com/content/60/4/422.full.pdfTate, RL and Pfaff, A., Jurjevic, L. (2000) Resolution disorientation and amnesia in post-traumatic amnesia. Journal of Neurology, Neurosurgery, and Psychiatry, 68, 178-185http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1736763/pdf/v068p00178.pdfWilson JTL, Teasdale, GM, Hadley, DM and Wiedmann, KD and Lang, D. (2012). Post-traumatic amnesia: still a valuable benchmark. Journal of Neurology, Neurosurgery and Psychiatry, 56, 198-201http://jnnp.bmj.com/content/57/2/198.full.pdf

Essay / Assessing the Limits of Post-Traumatic Amnesia related to injuries in the United States, with an estimated 1.7 million people sustaining a head injury each year (Center for Disease Control and Prevention, 2010). The classification of brain injuries (mild, moderate and severe) is mainly carried out using the Glasgow Coma Scale (GCS), which is widely accepted for assessing the severity of brain injuries (Bauer and Fritz, 2004). Recent studies suggest that almost all patients with moderate or severe head injury have a recovery period during which they are responsive but confused. This condition is commonly called post-traumatic amnesia. Posttraumatic amnesia (PTA) is defined as “a failure of ongoing memory” (Artiola et al., 1980; p. 377). PTA is often cited as the best method for codifying the degree, level of recovery, and outcomes after closed head injury (e.g., Artieola et al., 1980; Tate, Pfaff, & Jurjevic, 2000). PTA duration is a better indicator of outcome than early injury scales such as the GCS score (Richardson et al., 2009). This analysis will examine the limitations of the general PTA assessment scale and explore the advantages and limitations of retrospective and prospective methods. methods used to measure PTA duration. There is a frequent hypothesis that coma depth and extent and PTA are concomitant, reflecting different facets of a common mechanism (Wilson, Teasdale, Hadley, Wiedmann, & Lang, 1993). The researchers say that when PTA and coma were juxtaposed, their correlation was found to be only moderately closer. Furthermore, they claim that previous studies exploring PTA and coma as predictors of outcomes...... middle of article...... is this reliable? http://www.ncbi.nlm.nih.gov/pmc/articles/PMC486693/pdf/jnnpsyc00001-0046.pdfMcMillan, TM, Jongen, ELMM, Greenwood, and RJ (1996). Assessment of post-traumatic amnesia after severe closed head trauma: retrospective or prospective? Journal of Neurology, Neurosurgery, and Psychiatry, 60, 422-427http://jnnp.bmj.com/content/60/4/422.full.pdfTate, RL and Pfaff, A., Jurjevic, L. (2000) Resolution disorientation and amnesia in post-traumatic amnesia. Journal of Neurology, Neurosurgery, and Psychiatry, 68, 178-185http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1736763/pdf/v068p00178.pdfWilson JTL, Teasdale, GM, Hadley, DM and Wiedmann, KD and Lang, D. (2012). Post-traumatic amnesia: still a valuable benchmark. Journal of Neurology, Neurosurgery and Psychiatry, 56, 198-201http://jnnp.bmj.com/content/57/2/198.full.pdf

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