Diagnostic criteria for 'substance-induced persisting dementia' are included in DSM-IV (3) (Table 1), which also states that there must be evidence from the history, physical examination, or laboratory findings that the deficits are aetiologically related to the persisting effects of substance use (in this case alcohol). The amnesic (Korsakoff) syndrome is listed separately in ICD-10,(4) whereas alcoholic 'dementia' is included under the 'residual and late-onset psychotic disorder' category, where diagnostic guidelines can be found.
Table 1 DSM-IV diagnostic criteria for substance-induced persisting dementia
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