Delirium is defined by the acute onset of fluctuating cognitive impairment and a disturbance of consciousness with reduced ability to attend. According to ICD-10 Delirium is an etiologically nonspecific syndrome characterized by concurrent disturbances of consciousness and attention, perception, thinking, memory, psychomotor behaviour, emotion, and the sleep-wake cycle. The patient with delirium presents with a wide range of psychiatric symptoms making it difficult to distinguish with other psychiatric disorders such as schizophrenia. The major causes of delirium are neurological disorders, systemic disease, metabolic disorders and either intoxication or withdrawal from pharmacological or toxic agents. Cause of delirium can also be multifactorial.
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Last date updated on July, 2014