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The psychological impact of disclosing amyloid status to Japanese elderly: a preliminary study on asymptomatic patients with subjective cognitive decline

Published online by Cambridge University Press:  02 November 2017

Taisei Wake ,
Hajime Tabuchi ,
Kei Funaki ,
Daisuke Ito ,
Bun Yamagata ,
Takahito Yoshizaki ,
Masashi Kameyama ,
Tadaki Nakahara ,
Koji Murakami  and
Masahiro Jinzaki
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Taisei Wake
Affiliation:
Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
Hajime Tabuchi*
Affiliation:
Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
Kei Funaki
Affiliation:
Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
Daisuke Ito
Affiliation:
Department of Neurology, Keio University School of Medicine, Tokyo, Japan
Bun Yamagata
Affiliation:
Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
Takahito Yoshizaki
Affiliation:
Department of Neurology, Keio University School of Medicine, Tokyo, Japan
Masashi Kameyama
Affiliation:
Department of Diagnostic Radiology, Keio University School of Medicine, Tokyo, Japan Department of Diagnostic Radiology, Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology, Tokyo, Japan
Tadaki Nakahara
Affiliation:
Department of Diagnostic Radiology, Keio University School of Medicine, Tokyo, Japan
Koji Murakami
Affiliation:
Department of Radiology, Juntendo University School of Medicine, Tokyo, Japan
Masahiro Jinzaki
Affiliation:
Department of Diagnostic Radiology, Keio University School of Medicine, Tokyo, Japan
Masaru Mimura
Affiliation:
Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
*
Correspondence should be addressed to: Hajime Tabuchi, MD, PhD, Department of Neuropsychiatry, Keio University School of Medicine, Shinanomachi 35, Shinjuku-ku, Tokyo 160-8582, Japan. Phone: +81-3-3353-1211 (ext. 62454); Fax: +81-3-5379-0187. Email: tabuchi@a8.keio.jp.
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Abstract

In Japan, 4.6 million people are living with dementia and the number is expected to rise to 7 million by 2025. Amyloid-β (Aβ) positron emission tomography (PET) is used for cognitively normal Japanese people with or without subjective cognitive decline (SCD) for the purpose of clinical trials or diagnosis. Nevertheless, no empirical studies have been conducted on the safety of disclosing amyloid status to such populations. We conducted amyloid PET imaging on 42 participants (Aβ positive (n = 10) and negative (n = 32)). State anxiety and depression were measured at pre- and post-disclosure, and test-related distress at post-disclosure. Mean state anxiety and depression scores were below the cut-off through pre- and post-disclosure in the Aβ positive and negative groups. State anxiety and depression did not change over time and were not different between groups. Mean test-related distress scores were within normal limits at post-disclosure in both groups. No significant difference was found between groups. Disclosing Aβ positive results did not cause greater mood disturbance than negative results in a short period of time. The short-term psychological safety of disclosing Aβ PET results to asymptomatic Japanese adults with SCD was indicated.

Keywords

Alzheimer diseasebiomarkersethicspositron emission tomography (PET)memory clinics
Type
Brief Report
Information
International Psychogeriatrics , Volume 30 , Issue 5: Issue Theme: Brain Imaging , May 2018 , pp. 635 - 639
Copyright
Copyright © International Psychogeriatric Association 2017 

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