acute confusional state


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acute confusional state (ACS)

a form of delirium caused by interference with the metabolic or other biochemical processes essential for normal brain functioning. Symptoms may include disturbances in cognition and levels of awareness, short-term memory deficit, retrograde and anterograde amnesia, and disturbances in orientation, accompanied by restlessness, apprehension, irritability, and apathy. The condition may be associated with an acute physiological state, delirium, toxic psychosis, or acute brain syndrome which constitutes a medical emergency.

Acute Confusional State

A state of severe confusion or an abrupt change in mental status, due to either psychiatric or organic disease.
Clinical findings Lethargy, agitation, confusion, disorientation, delirium.

acute confusional state

Acute brain syndrome Neurology A state of severe confusion or an abrupt change in mental status, due either to psychiatric or organic disease Clinical Lethargy, agitation, confusion, disorientation, delirium. Cf Dementia.
References in periodicals archive ?
Among the univariate logistic regression analyses of the 11 neuropsychiatric manifestations seen in the study, acute confusional state ( P < 0.
The most frequent neuropsychiatric manifestations in our study were headache, acute confusional state, seizure disorder, and cerebrovascular disease, which were in accordance with the data of Steup-Beekman et al .
After correction for age and duration dependencies, there was no significant positive correlation between acute confusional states and MRI abnormalities.
1) The most common events were headache, mood disorders, cognitive dysfunction, anxiety disorder, cerebrovascular disease, seizure disorders, acute confusional states, polyneuropathy, mononeuropathy, and psychosis.
Of these events, the most frequent were seizure disorders, cerebrovascular disease, mononeuropathy, acute confusional states, cranial neuropathy, myelopathy, polyneuropathy, aseptic meningitis, mood disorders, and psychosis, with each of the remaining syndromes affecting no more than 2% of patients.
Acute mood and behavior disturbances of neurological origin: Acute confusional states.
Acute confusional states and dementia in the elderly: The role of dehydration/volume depletion.
Acute confusional states are precipitated by a disruption in neurotransmission often associated with medications, especially drugs with anticholinergic effects, or altered cerebral metabolism.
Many elders in LTC facilities are vulnerable to acute confusional states because of the unfamiliar surroundings and social isolation.
Gustafson Y, Berggren D, Brannstrom B, Bucht G, Norberg A, Hansson L, Winblad B: Acute confusional states in elderly patients treated for femoral neck fracture J Amer Geriatr Soc 1988; 36:525-530.

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