Duration of post-traumatic amnesia after mild head injury

Gronwall, Dorothy; Wrightson, Philip

doi:10.1080/01688638008403780

“…Extent of TBI was indexed by duration of PTA using the procedure prescribed by Gronwall and Wrightson (1980). Duration of PTA was determined by asking participants "What is the first thing you remember after the accident?"…”

Section: Tbimentioning

confidence: 99%

“…First, posttraumatic amnesia (PTA) is defined as the period between the onset of the injury and the return of continuous personal memories (Russell & Smith, 1961), and involves disorientation, confusion, and an inability to store and retrieve new information (Schacter & Crovitz, 1977). It has been proposed that reports of impaired consciousness during PTA are similar to symptoms of dissociation (Grigsby & Kaye, 1993;Gronwall & Wrightson, 1980). Second, postconcussive syndrome (PCS) is frequently reported following TBI.…”

mentioning

confidence: 99%

Traumatic brain injury, dissociation, and posttraumatic stress disorder in road traffic accident survivors

Jones

¹

,

Harvey

²

,

Brewin

³

2005

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This study investigated the symptom profiles of acute stress disorder (ASD) and posttraumatic stress disorder (PTSD) in participants who did and did not sustain traumatic brain injury (TBI), following a road traffic accident. The participants were assessed at three time points: as soon as possible posttrauma as well as at 6 weeks and 3 months posttrauma. At the first assessment, fewer participants from the TBI group recalled feeling fear and helplessness at the time of the trauma, fewer TBI participants reported recurrent intrusive thoughts and images, and more TBI participants reported dissociation since the trauma, relative to the non-TBI group. At the second assessment, fewer participants from the TBI group recalled feeling intense helplessness at the time of the trauma. Fewer TBI participants also reported reliving and physiological reactions on trauma reminders relative to the non-TBI group. At 3 months posttrauma, there was no difference in PTSD symptom profile between non-TBI and TBI groups. Our findings indicate that the presence of TBI is likely to influence the distribution of certain symptoms, but need not be a significant barrier to diagnosing ASD and PTSD.

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“…Length of PTA in the current study was assessed retrospectively following a similar strategy to Gronwall and Wrightson ( 1980 ). Specifi cally, participants were asked to describe the event during which they received their injury, starting from just before the injury occurred.…”

Section: Methods Participantsmentioning

confidence: 99%

Post-traumatic amnesia and the nature of post-traumatic stress disorder after mild traumatic brain injury

Bryant

¹

,

Creamer

²

,

O’Donnell

³

et al. 2009

J Int Neuropsychol Soc

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The prevalence and nature of post-traumatic stress disorder (PTSD) following mild traumatic brain injury (MTBI) is controversial because of the apparent paradox of suffering PTSD with impaired memory for the traumatic event. In this study, 1167 survivors of traumatic injury (MTBI: 459, No TBI: 708) were assessed for PTSD symptoms and post-traumatic amnesia during hospitalization, and were subsequently assessed for PTSD 3 months later ( N = 920). At the follow-up assessment, 90 (9.4%) patients met criteria for PTSD (MTBI: 50, 11.8%; No-TBI: 40, 7.5%); MTBI patients were more likely to develop PTSD than no-TBI patients, after controlling for injury severity (adjusted odds ratio: 1.86; 95% confi dence interval, 1.78-2.94). Longer post-traumatic amnesia was associated with less severe intrusive memories at the acute assessment. These fi ndings indicate that PTSD may be more likely following MTBI, however, longer post-traumatic amnesia appears to be protective against selected re-experiencing symptoms. ( JINS , 2009, 15, 862-867 .)

show abstract

“…Length of PTA in the current study was assessed retrospectively following a similar strategy to Gronwall and Wrightson ( 1980 ). , 2009.…”

Section: Methods Participantsmentioning

confidence: 99%

Post-traumatic amnesia and the nature of post-traumatic stress disorder after mild traumatic brain injury

Bryant¹,

Creamer²,

O'Donnell³

et al. 2010

View full text Add to dashboard Cite

The prevalence and nature of post-traumatic stress disorder (PTSD) following mild traumatic brain injury (MTBI) is controversial because of the apparent paradox of suffering PTSD with impaired memory for the traumatic event. In this study, 1167 survivors of traumatic injury (MTBI: 459, No TBI: 708) were assessed for PTSD symptoms and post-traumatic amnesia during hospitalization, and were subsequently assessed for PTSD 3 months later ( N = 920). At the follow-up assessment, 90 (9.4%) patients met criteria for PTSD (MTBI: 50, 11.8%; No-TBI: 40, 7.5%); MTBI patients were more likely to develop PTSD than no-TBI patients, after controlling for injury severity (adjusted odds ratio: 1.86; 95% confi dence interval, 1.78-2.94). Longer post-traumatic amnesia was associated with less severe intrusive memories at the acute assessment. These fi ndings indicate that PTSD may be more likely following MTBI, however, longer post-traumatic amnesia appears to be protective against selected re-experiencing symptoms. ( JINS , 2009, 15, 862-867 .)

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Duration of post-traumatic amnesia after mild head injury

Cited by 115 publications

References 5 publications

Traumatic brain injury, dissociation, and posttraumatic stress disorder in road traffic accident survivors

Traumatic brain injury, dissociation, and posttraumatic stress disorder in road traffic accident survivors

Post-traumatic amnesia and the nature of post-traumatic stress disorder after mild traumatic brain injury

Post-traumatic amnesia and the nature of post-traumatic stress disorder after mild traumatic brain injury

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