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Related Experiment Videos

Reversible intellectual impairment: an internist's perspective

M L Wolff

    Journal of the American Geriatrics Society
    |October 1, 1982
    PubMed
    Summary
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    Extensive laboratory assessment is needed for elderly patients with intellectual impairment, as data on reversible causes are limited, especially in outpatients. Many potential contributing factors remain largely unknown in this population.

    Area of Science:

    • Geriatrics
    • Neurology
    • Internal Medicine

    Background:

    • Recent publications advocate for comprehensive laboratory evaluation in elderly patients experiencing intellectual impairment.
    • Existing data on reversible causes of intellectual impairment are scarce and primarily derived from hospitalized patient populations.
    • The prevalence of numerous potential contributing factors, including metabolic, cardiovascular, infectious, and neurological conditions, is largely unknown in this demographic.

    Purpose of the Study:

    • To highlight the critical need for extensive laboratory assessment in elderly patients with intellectual impairment.
    • To identify the significant gaps in current knowledge regarding the frequencies of various reversible causes of intellectual impairment in the elderly.
    • To underscore the lack of data on these conditions in outpatient settings.

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    Main Methods:

    • A comprehensive review of existing medical literature was conducted.
    • The review focused on identifying published data concerning reversible causes of intellectual impairment in the elderly.
    • The study synthesized findings related to hospitalized patients and noted the absence of data for outpatients.

    Main Results:

    • The frequencies of many potential causes like azotemia, hyponatremia, hypoglycemia, cardiac arrhythmia, cerebrovascular disease, infections, and intoxications are unknown.
    • While some conditions like depression (8%), alcoholism (8-13%), and normal pressure hydrocephalus (7-12%) have reported frequencies in hospitalized dementia patients, their prevalence in outpatients is unknown.
    • Prevalence data for hypothyroidism, hyperparathyroidism, neurosyphilis, and vitamin deficiencies are lacking specifically among intellectually impaired elderly individuals.

    Conclusions:

    • There is a substantial lack of data regarding the prevalence of reversible causes of intellectual impairment in the elderly, particularly in outpatient settings.
    • Further research and extensive laboratory assessments are crucial to accurately diagnose and manage intellectual impairment in older adults.
    • Addressing these knowledge gaps is essential for improving clinical care and patient outcomes.