The definition of severe head injury, the higher than usual incidence of good recovery in the present study, and the relationship between injury severity and outcome are discussed. Only duration of PTA, however, contributed significantly to outcome variance when potential outcome predictors were assessed using a stepwise multiple regression analysis. 120124 The WPTAS was designed to assess the ability of individuals who have sustained a TBI to lay down new memories over a 24-h period. When analysed individually, duration of PTA and Glasgow Coma Scale scores on admission to hospital were both strongly correlated with outcome. The Westmead Post-traumatic Amnesia Scale (WPTAS) and its abbreviated form (the A-WPTAS) are also valid measures for determining the length of PTA. Approximately 80% of patients had made a good recovery by 12 months post-injury a better outcome than has been found in studies using the presence of coma during the first 6 h post-admission to hospital to define severe head injury. Patients were included in this study if they had a period of post-traumatic amnesia (PTA) exceeding 24 h. Post-traumatic amnesia scale Post-traumatic amnesia (PTA) is a disorder after brain injury that is classified as a traumatic delirium and may even be found. Accurate assessment of PTA is imperative in guiding clinical decision making. A consecutive series of 93 severe closed-head injury (SCHI) patients, discharged from hospital in a conscious state, were rated on the Glasgow Outcome Scale at 6 and 12 months post-injury. Background Post-traumatic amnesia (PTA) is a key symptom of traumatic brain injury (TBI).
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