ピックアップ最新研究

認知症に関する国内外の最新研究の中から、「認知症とともによりよく生きる社会」を構築するために役立つ論文をピックアップしていきます。

vol. 8

2019年10-12月発表論文

今回は、2019年10-12月に発表された最新研究を19本選出しました。アブストラクトの掲載がない場合や、実際に本文をご覧になりたい場合は、国会図書館で所蔵しています。国会図書館所蔵の学界誌は該当箇所を指定し複写、郵送で取得することが可能ですので、ご興味がある方はぜひご活用ください。(詳細は国会図書館ウェブページへ)。

01

市民を対象とした認知症研修による受講者の認知症への理解の調査について 事前・事後の質問票調査から

老年精神医学雑誌

姜 善貴, 大石 智, 井上 朋子, 島野 朋也, 朝倉 崇文, 滝澤 毅矢, 宮岡 等

02

認知症早期発見を目的として構築した保険薬局薬剤師と地域多職種との連携体制の評価

薬学雑誌

安倉 央, 高橋 正志, 林 稔展, 江川 孝

保険薬局薬剤師と地域多職種との連携が認知症早期発見に及ぼす影響について検討した。23施設の健康講座内で実施したタッチパネル式簡易検査の測定会で同意を得られた被験者597名のうち、89名を対象とした。実態調査後の初期対応結果の内訳はA対応(認知症治療中)5名、B対応(受診勧奨)13名、C対応(介護申請手続き)5名、D対応(他の支援センターへのつなぎ)4名、E対応(見守り)25名、F対応(聴こえが悪く正確な結果ではない可能性)7名、G対応(居宅療養管理指導対応)1名、H対応(かかりつけ医へ情報提供)9名、I対応(訪問調査結果問題なし)40名であった。B対応を行った13名のうち、4名は専門医受診を行い、3名がアルツハイマー型認知症、1名がMCIと診断を受けていた。そのうち1名はアルツハイマー型認知症の診断の後、薬剤師居宅療養管理指導を実施し、薬剤師として服薬支援を行うことができていた。

外部リンク
03

パーソン・センタード・ケアを基盤とした認知症高齢者に対する転倒予防プログラムのケアスタッフに対する介入効果

日本老年医学会雑誌

鈴木 みずえ, 松井 陽子, 大鷹 悦子, 市川 智恵子, 阿部 邦彦, 古田 良江, 内藤 智義, 加藤 真由美, 谷口 好美, 平松 知子, 丸岡 直子, 小林 小百合, 六角 僚子, 関 由香里, 泉 キヨ子, 金森 雅夫

目的:本研究の目的は,パーソン・センタード・ケアを基盤とした視点から認知症高齢者の転倒の特徴を踏まえて開発した転倒予防プログラムの介護老人保健施設のケアスタッフに対する介入効果を明らかにすることである.
 
方法:2016年5月~2017年1月まで介護老人保健施設で介入群・コントロール群を設定し,認知症高齢者に対する転倒予防プログラムを介入群に実施し,ケアスタッフは研修で学んだ知識を活用して転倒予防に取り組んだ.研究期間は,研修,実践,フォローアップの各3ヵ月間,合計9ヵ月間である.対象であるケアスタッフにベースライン(研修前),研修後,実践後,フォローアップ後の合計4回(コントロール群には同時期),転倒予防ケア質指標,学際的チームアプローチ実践評価尺度などのアンケートを実施し,割付条件(介入・コントロール)と時期を固定因子,対象者を変量因子,高齢者施設の経験年数,職種を共変量とする一般線形混合モデルを用いた共分散分析を行った.
 
結果:本研究の対象者のケアスタッフは,介入群59名,コントロール群は70名である.転倒予防プログラム介入期間の共分散分析の結果,転倒予防ケア質指標ではベースライン63.82(±11.96)からフォローアップ後70.02(±9.88)と最も増加し,有意な差が認められた.介入効果では,認知症に関する知識尺度の効果量が0.243と有意に高かった(p<0.01).
 
結論:介入群ではケアスタッフに対して転倒予防ケア質指標の有意な改善が得られたことから,転倒予防プログラムのケアスタッフに対する介入効果が得られたと言える.(著者抄録)

外部リンク
04

訪問診療を受ける在宅認知症患者の行動心理症状と関連要因の検討 横断調査研究(OHCARE study)

日本老年医学会雑誌

樋上 容子(大阪医科大学 看護学部), 樺山 舞, 糀屋 絵理子, 黄 雅, 山本 真理子, 秋山 正子, 小玉 伽那, 中村 俊紀, 廣谷 淳, 福田 俊夫, 玉谷 実智夫, 奥田 好成, 生島 雅士, 馬場 義親, 長野 正広, 樂木 宏実, 神出 計

目的:本研究は,訪問診療を受療する認知症高齢者の療養状況や行動心理症状(BPSD),薬物療法の実態を把握し,社会サービスや要介護度との関連性を検討した.
 
方法:包括的在宅医療確立を目指したレジストリー研究(Osaka Home Care Registry study:OHCARE)に登録された訪問診療を受ける65歳以上の全患者の内,認知症患者110名(82.0歳±11.3歳)を対象とした.診療記録,主治医意見書より情報収集し,要介護度,BPSD,治療,社会サービスについて解析を行った.
 
結果:認知症の診断率は64.6%で,対象者の33.6%で認知症病型の診断がありアルツハイマー型認知症が最も多かった.要介護3以上の者が62.7%で,家族と同居する者が54.5%であった.訪問診療に併せて,訪問看護:58.1%,訪問介護:48.1%,デイサービス:40.0%等を利用していた.BPSDの有病率は53.0%で,昼夜逆転(23.6%),妄想(22.7%),介護抵抗(21.8%)等であった.BPSD有の者は要介護度3に多く,さらに要介護度が高度化するとBPSDの有病率は低下していた.BPSDがある者の61.5%に向精神薬が処方され,介護抵抗・暴行・暴言・妄想がある者には抗精神病薬が高い割合で使用されていた(全てp<0.005).多変量解析の結果,BPSDの有意な正の予測変数は抗精神病薬であり,要介護度と訪問リハビリはBPSDが減る方向と有意な関連を認めた.
 
結論:訪問診療を受ける認知症高齢者のBPSDの実態が明らかとなり,ADLレベルを調整すると要介護度が低いことがBPSDの独立した関連因子であった.居宅型施設入所者は要介護度3の割合が高く,ADLレベルが高く介護抵抗などのBPSDが生じていたことが考えられた.BPSDの重症度や頻度を含めた縦断研究を今後さらに進めていく必要がある.(著者抄録)

外部リンク
05

認知症高齢者の独居生活の継続が困難になる要因 介護支援専門員・訪問看護師・訪問介護員へのインタビューより

日本認知症ケア学会誌

久保田 真美(兵庫医療大学 看護学部), 堀口 和子

06

中等度認知症高齢者に対する余暇活動の楽しさプログラムの探索的実践

日本認知症ケア学会誌

大山 千尋(砂川市立病院), 本家 寿洋, 内海 久美子

07

認知症高齢者の行動・心理症状に関する国内外の研究動向

日本認知症ケア学会誌

佐久間 美里(名古屋大学 大学院医学系研究科看護学専攻), 渕田 英津子

08

【認知症施策の現状と課題】今日の認知症施策に関するいくつかの検討課題

老年精神医学雑誌

粟田 主一

09

若年性認知症家族のステージごとの体験 2000年以降のわが国の質的研究報告の知見から

日本認知症ケア学会誌

浦田 姫佳 , 安武 綾

10

終末期を生きる認知症の人の可能性とケア

日本認知症ケア学会誌

諏訪 さゆり

11

地域包括ケアにおける認知症高齢患者のシームレスケア実践力尺度の妥当性と信頼性の検討::地域包括ケア病棟の看護職に着目をして

日本看護科学会誌

小木曽 加奈子 , 伊藤 康児

目的:地域包括ケア病棟の看護職を対象に,地域包括ケアにおける認知症高齢患者に対するシームレスケア実践力尺度作成に向け,妥当性と信頼性を検証することを目的とした.
 
方法:地域包括ケア病棟137施設の看護職1,370名を対象に,質問紙調査を行った
 
結果:570名(41.6%)の有効回答を得た.天井効果および床効果を示す質問項目はなかった.探索的因子分析では,【多職種の強みを活かす】,【家族の現状を考慮する】,【穏やかな日々の生活を維持する】,【認知機能に応じ日常生活動作の向上を目指す】,【退院後へつなぐ医学的管理】,【入院早期からのMSWとの連携】の6因子に分かれ,各因子のα係数は.800以上であった.確認的因子分析では,CFIは.905,RMSEAは.065であった.
 
結論:本尺度の妥当性と信頼性が示され,認知症高齢患者に対し地域包括ケア病棟が求められる機能を果たすためにも,本尺度の活用が望まれる.
 
Objective: This study aimed to verify the validity and reliability of the seamless care for elderly dementia patients in community-based integrated care scale.
 
Method: A questionnaire survey was administered to 1,370 nurses at 137 hospitals for community-based care.
 
Results:We obtained 570 valid responses (41.6%). There were no question items indicating floor and ceiling effects. An exploratory factor analysis revealed that seamless care consisted of the following six factors: "utilizing the advantages of multiple occupations," "considering the current state of a patient's family," "maintaining a patient's gentle daily life," "aiming to improve a patient's daily living behavior according to cognitive function," "medical management for a patient after being discharged," and "cooperation with medical social workers from the beginning of hospitalization." No question items had factor loadings less than .400. Because the α value of each factor was not less than .800, the internal consistency of this scale could be verified. In a confirmatory factor analysis, the comparative fit index values were .905 and above .900, and the root mean square error of approximation value was .065.
 
Conclusion: The validity and reliability of this scale were verified. This scale should be used to fulfill functions required for hospitals for community-based care to cope with elderly dementia patients.

外部リンク
12

認知症高齢者を地域で支える : 実践事例 認知症の人への診断後の心理的支援とピアサポート

老年精神医学雑誌

大塚 智丈

13

The Last Week of Life of Nursing Home Residents With Advanced Dementia: A Retrospective Study

BMC Palliat Care

Franco Toscani, Silvia Finetti, Fabrizio Giunco, Ines Basso, Debora Rosa, Francesca Pettenati, Alessandro Bussotti, Daniele Villani, Simona Gentile, Lorenzo Boncinelli, Massimo Monti, Sandro Spinsanti, Massimo Piazza, Lorena Charrier, Paola Di Giulio

Background: Barriers to palliative care still exist in long-term care settings for older people, which can mean that people with advanced dementia may not receive of adequate palliative care in the last days of their life; instead, they may be exposed to aggressive and/or inappropriate treatments. The aim of this multicentre study was to assess the clinical interventions and care at end of life in a cohort of nursing home (NH) residents with advanced dementia in a large Italian region.
 
Methods: This retrospective study included a convenience sample of 29 NHs in the Lombardy Region. Data were collected from the clinical records of 482 residents with advanced dementia, who had resided in the NH for at least 6 months before death, mainly focusing on the 7 days before death.
 
Results: Most residents (97.1%) died in the NH. In the 7 days before death, 20% were fed and hydrated by mouth, and 13.4% were tube fed. A median of five, often inappropriate, drugs were prescribed. Fifty-seven percent of residents had an acknowledgement of worsening condition recorded in their clinical records, a median of 4 days before death.
 
Conclusions: Full implementation of palliative care was not achieved in our study, possibly due to insufficient acknowledgement of the appropriateness of some drugs and interventions, and health professionals' lack of implementation of palliative interventions. Future studies should focus on how to improve care for NH residents.

外部リンク
14

Discrepancy in the Perception of Symptoms of Cognitive Decline Between Older Adults and Their Family Members: Results of the Toyama Dementia Survey

BMC Neurol

Nobue Nakahori, Michikazu Sekine, Masaaki Yamada, Takashi Tatsuse, Hideki Kido, Michio Suzuki

Background: Early consultation is important to delay the onset of dementia. The present study aimed to explore the reasons for delaying a consultation of dementia while focusing on the differences in the perception of cognitive decline between older adults and their family members.
 
Methods: A group of 663 older adults aged ≥65 years and living with family members in Toyama Prefecture was surveyed. The questionnaires included items that measured changes in cognitive function noticed by older adults and their family members, and the Revised Hasegawa Dementia Scale (HDS-R). The degrees of consistency on the perception of mental changes that accompanied cognitive decline were measured using the Kappa statistic.
 
Results: Both older adults and their family members were well aware of "forgetfulness" as a symptom of cognitive decline. Only the perception of "loss of appetite" at the late stage of cognitive decline was consistent between older adults and their family (κ = 0.707). When older adults often noticed their own forgetfulness, their mean HDS-R score was 22.7, whereas that of the family members was 14.7. The combinations of perception of forgetfulness by older adults and their family members, and the mean HDS-R scores were unaware/unaware (mean HDS-R score = 27.0), aware/unaware (mean HDS-R score = 24.9), aware/aware (mean HDS-R score = 15.5), and unaware/aware (mean HDS-R score = 13.0).
 
Conclusions: There were discrepancies in the perception of cognitive decline between older adults and their family members. Cognitive decline had progressed by the time that family members had noticed the symptom of forgetfulness in their older adult relatives. The perception gap regarding cognitive decline deters consultation of dementia.

外部リンク
15

Measuring Fidelity of Delivery of the Community Occupational Therapy in Dementia-UK Intervention

BMC Geriatr

Holly Walton, Ildiko Tombor, Jane Burgess, Hilary Groarke, Tom Swinson, Jennifer Wenborn, Aimee Spector, Martin Orrell, Gail Mountain, Susan Michie

Background
Interpreting data about intervention effectiveness requires an understanding of which intervention components were delivered and whether they were delivered as planned (fidelity of delivery). These studies aimed to develop a reliable measure for assessing fidelity of delivery of the Community Occupational Therapy in Dementia-UK intervention (COTiD-UK) (Study 1) and measure fidelity of delivery of COTiD-UK across sessions, sites and occupational therapists (Study 2).
 
Methods
The studies used a longitudinal observational design nested within a multi-site randomised controlled trial. Where practicable, all intervention sessions were audio-recorded. Fidelity checklists and coding guidelines were developed, piloted and refined until good agreement was achieved between two coders. Ten percent of sessions were purposively sampled from 12 sites and 31 occupational therapists. Transcripts were coded using checklists developed in Study 1; 10% of sets of intervention session transcripts were double coded to ensure that agreement was maintained. Percentages of components that were delivered were calculated for each session, site and occupational therapist.
 
Results
A reliable measure of fidelity of delivery for COTiD-UK was developed after several rounds of piloting and amendments. COTiD-UK was delivered with moderate fidelity across all six sessions (range: 52.4–75.5%). The mean range of fidelity varied across sites (26.7–91.2%) and occupational therapists (26.7–94.1%).
 
Conclusions
A reliable, systematic method for measuring fidelity of delivery of COTiD-UK was developed and applied, and can be adapted for use in similar interventions. As COTiD-UK was delivered with moderate fidelity, there is a reasonable degree of confidence that intervention effects were attributable to COTiD-UK.

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16

Co-designing Technology With People With Dementia and Their Carers: Exploring User Perspectives When Co-Creating a Mobile Health Application

International Journal of Older People Nursing

Siobhan O'Connor

Aims: To explore the perspectives of those involved in co-designing a mobile application with people with dementia and their carers.
 
Background: People with dementia suffer physical and psychological problems as their illness progresses and require a range of health and social care services to meet their needs. Mobile applications are being developed to support individuals to manage long-term conditions, but patients and carers are not always involved in designing this technology, which can lead to poor quality health apps. A digital initiative was launched to involve people with dementia and their carers in creating a mobile app that would support communication and enable them to share memories together.
 
Design: An exploratory, descriptive approach was used.
 
Methods: In-depth interviews with people with dementia, their carers, and others involved in co-creating a mobile health application were conducted. Data analysis was undertaken using the framework approach.
 
Results: The views of people with dementia, their carers, and project staff were similar regarding the complexity of the co-design process, and the value the mobile app had for people with dementia and their families. Being involved in co-production seemed to have numerous benefits for people with dementia and their carers as they gained new knowledge and skills, friendships, and a sense of achievement in creating a unique app that would benefit many people. The app also appeared useful in stimulating memory and cognitive function, aiding communication, and providing a sense of normalcy for people living with dementia and their carers.
 
Conclusion: Mobile health applications can facilitate interaction between people with dementia and their carer network that could improve their quality of life. Further research on which co-design process is best suited to people with dementia and whether technology created via this participatory method is more effective or not in improving health outcomes is required.
 
Implications for practice: Nurses should have knowledge of and education about technology and how it can promote health and wellbeing of persons with dementia. Nurses who care for people with dementia and their families should support them in taking part in or leading the design of technologies that meet their needs. Participatory design methods should be taught in nursing education so the profession can provide guidance to patients and their families on co-creating health products and services.

外部リンク
17

A Mobile-Based Screening System for Data Analyses of Early Dementia Traits Detection

Journal of Medical Systems

Fadi Thabtah, Ella Mampusti, David Peebles, Raymund Herradura, Jithin Varghese

Existing early detection methods that deal with the pre-diagnosis of dementia have been criticised as not being comprehensive as they do not measure certain cognitive functioning domains besides being inaccessible. A more realistic approach is to develop a comprehensive outcome that includes cognitive functioning of dementia, as this will offer a robust and unbiased outcome for an individual. In this research, a mobile screening application for dementia traits called DementiaTest is proposed, which adopts the gold standard assessment criteria of Diagnostic and Statistical Manual of Mental Disorders (DSM-V). DementiaTest is implemented and tested on the Android and IOS stores. More importantly, it collects data from cases and controls using an easy, interactive, and accessible platform. It provides patients and their family with quick pre-diagnostic reports using certain cognitive functioning indicators; these can be utilized by general practitioners (GPs) for referrals for further assessment in cases of positive outcomes. The data gathered using the new application can be analysed using Artificial Intelligence methods to evaluate the performance of the screening to pinpoint early signs of the dementia.

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18

Identifying Undetected Dementia in UK Primary Care Patients: A Retrospective Case-Control Study Comparing Machine-Learning and Standard Epidemiological Approaches

BMC Medical Informatics and Decision Making

Elizabeth Ford, Philip Rooney, Seb Oliver, Richard Hoile, Peter Hurley, Sube Banerjee, Harm van Marwijk, Jackie Cassell

Background: Identifying dementia early in time, using real world data, is a public health challenge. As only two-thirds of people with dementia now ultimately receive a formal diagnosis in United Kingdom health systems and many receive it late in the disease process, there is ample room for improvement. The policy of the UK government and National Health Service (NHS) is to increase rates of timely dementia diagnosis. We used data from general practice (GP) patient records to create a machine-learning model to identify patients who have or who are developing dementia, but are currently undetected as having the condition by the GP.
 
Methods: We used electronic patient records from Clinical Practice Research Datalink (CPRD). Using a case-control design, we selected patients aged >65y with a diagnosis of dementia (cases) and matched them 1:1 by sex and age to patients with no evidence of dementia (controls). We developed a list of 70 clinical entities related to the onset of dementia and recorded in the 5 years before diagnosis. After creating binary features, we trialled machine learning classifiers to discriminate between cases and controls (logistic regression, naïve Bayes, support vector machines, random forest and neural networks). We examined the most important features contributing to discrimination.
 
Results: The final analysis included data on 93,120 patients, with a median age of 82.6 years; 64.8% were female. The naïve Bayes model performed least well. The logistic regression, support vector machine, neural network and random forest performed very similarly with an AUROC of 0.74. The top features retained in the logistic regression model were disorientation and wandering, behaviour change, schizophrenia, self-neglect, and difficulty managing.
 
Conclusions: Our model could aid GPs or health service planners with the early detection of dementia. Future work could improve the model by exploring the longitudinal nature of patient data and modelling decline in function over time.

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19

How Can Autonomy Be Maintained and Informal Care Improved for People With Dementia Living in Residential Care Facilities: A Systematic Literature Review

Gerontologist

Jogé Boumans, Leonieke C van Boekel, Caroline A Baan, Katrien G Luijkx

Background and objectives: For people with dementia living in residential care facilities, maintaining autonomy and receiving informal care are important. The objective of this review is to understand how caregiving approaches and physical environment, including technologies contribute to the maintenance of autonomy and informal care provision for this population.
 
Research design and methods: A literature review of peer-reviewed articles published between January 1995 and July 2017 was performed. Realist logic of analysis was used, involving context, mechanism and outcome configurations.
 
Results: Forty-nine articles were included. The improvement of the relationship between residents and formal/informal caregivers is important. This increases the knowledge (sharing) about the resident and contributes to their autonomy. A social, flexible, and welcoming attitude of the formal caregiver improves the provision of informal care. Specially designed spaces, for instance, therapeutic gardens, create activities for residents that remind them of themselves and contribute to their autonomy. Use of technologies reduces caregiver's time for primary tasks and therefore enables secondary tasks such as interaction with the residents.
 
Discussion and implications: The results revealed how residential care facilities could maintain autonomy of their residents and improve informal care delivery using caregiving approaches and the physical environment including technologies. The results are supporting toward each other in maintaining autonomy and also helped in enhancing informal care provision. For residential care facilities that want to maintain the autonomy of their residents and improve informal care delivery, it is important to pay attention to all aspects of living in a residential care facility.

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