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Anxiety prevalence in coexisting alzheimer’s and thyroid pathology

Published online by Cambridge University Press:  16 April 2020

I. Ioancio
Affiliation:
Ana Aslan International Academy of Aging, Bucharest, Romania
R. Trascu
Affiliation:
Ana Aslan International Academy of Aging, Bucharest, Romania
I. Turcu
Affiliation:
Ana Aslan International Academy of Aging, Bucharest, Romania
L. Spiru
Affiliation:
Ana Aslan International Academy of Aging, Bucharest, Romania

Abstract

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Background

Alzheimer disease (AD) is one of the most common neurodegenerative disorders (prevalence boosts from 0.2% in patients aged 55-65 up to 27% in patients aged 85+ years. Clinical manifestations of psychiatric disorders accompanying hypo- and hyper-thyroid function can mimic cognitive impairment.

Objectives

Our study aimed at studying the relationship between thyroid pathology, anxiety disorder and Alzheimer disease (AD).

Methods

Our longitudinal, prospective research followed 49 patients with thyroid disorders (aged 50-85 years, 93.5 females); 63.3% (n = 31) had coexisting dementia and thyroid disease while 36.7% (n = 18) were dementia-cleared (10 had mild cognitive impairment (MCI) and 8 - anxiety and/or depression); we cross/analyzed control (n = 18) and target (n = 31) groups.

Results

In the target group, 64.5% (n = 20) had hypothyroidism, 22.6% (n = 7) had euthyroid function and 12.9% (n = 4) had hyperthyroidism. The prevalence of anxiety and depression was higher in the hypothyroidism + dementia group (55.5%, n = 11) than in the hypothyroidism-only group (44.4%, n = 8). Most controls (77.8%, n = 14) had hypothyroidism while 22% (n = 4) had normal thyroid function.

Conclusions

Anxiety disorder had a greater prevalence both in the group with dementia + thyroid disease and in the MCI group. Hypothyroidism was the dominant thyroid disorder in both groups. The early diagnostic and treatment of thyroid disease is expected to improve prognosis and evolution of future cognitive disorders (MCI & AD).

Type
P01-158
Copyright
Copyright © European Psychiatric Association 2011
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