Gracie, of Suffolk says: "I had posttraumatic amnesia
Agitated behaviors are exhibited during the discrete stage of TBI recovery that is associated with acute confusion, posttraumatic amnesia
, and lack of consistent orientation (Corrigan, Mysiw, Gribble, & Chock, 1992).
13) Veterans who sustained a TBI that resulted in loss of consciousness or posttraumatic amnesia
longer than 30 minutes but less than 24 hours were more than twice as likely to develop dementia.
The definition includes loss of consciousness of <20 min, posttraumatic amnesia
of fewer than 24 h, and an initial Glasgow Coma Scale (GCS) of 13–15.
Table 1 shows that there was also a corresponding increase in self-reported moderate to very severe cognitive impairment with an increasing number of blast injuries, other injury exposures that could result in TBI, and episodes of loss of consciousness and posttraumatic amnesia
Ninety-one kids had moderate to severe TBI, meaning they lost consciousness for more than 30 minutes and had posttraumatic amnesia
for at least an hour.
Evidence-Based Cantu Grading System for Concussion (23) Grade Evidence Grade 1 (mild) No loss of consciousness; posttraumatic amnesia
a or postconcussion signs or symptoms lasting less than 30 minutes Grade 2 (moderate) Loss of consciousness lasting less than 1 minute; posttraumatic amnesia
a or postconcussion signs or symptoms lasting longer than 30 minutes but less than 24 hours Grade 3 (severe) Loss of consciousness lasting more than 1 minute or posttraumatic amnesia
a lasting longer than 24 hours; postconcussion signs or symptoms lasting longer than 7 days (a) Retrograde and anterograde.
But imaging might be used to rule out more serious traumatic brain injuries, such as intracranial hemorrhage in athletes with a suspected concussion who also have a loss of consciousness, posttraumatic amnesia
, persistently altered mental status, focal neurologic deficit, evidence of skull fracture, or signs of clinical deterioration.
The guidelines also include ratings for three different levels of posttraumatic amnesia
Amanda suffered from posttraumatic amnesia
(PTA) as a result of her head injuries.
She had experienced posttraumatic amnesia
for three days.
The injury caused posttraumatic amnesia
for less than a day in 7% (indicative of a milder head injury), for 1-7 days in 21%, for 8-28 days in 42%, and for 29 or more days in 30%.