2025/04/02 更新

写真a

サカモト ヨウコ
坂本 陽子
SAKAMOTO Youko
所属
学術研究院医療開発領域 助教(特任)
職名
助教(特任)

学位

  • 公衆衛生学修士 ( 2020年3月   岡山大学 )

  • 修士(医科学) ( 岡山大学 )

研究キーワード

  • 公衆衛生学

  • 疫学

 

論文

  • Course of General Fatigue in Patients with Post-COVID-19 Conditions Who Were Prescribed Hochuekkito: A Single-Center Exploratory Pilot Study. 国際誌

    Kazuki Tokumasu, Nobuyoshi Matsuki, Yuki Otsuka, Yoko Sakamoto, Keigo Ueda, Yui Matsuda, Yasue Sakurada, Hiroyuki Honda, Yasuhiro Nakano, Toru Hasegawa, Ryosuke Takase, Daisuke Omura, Fumio Otsuka

    Journal of clinical medicine   14 ( 4 )   2025年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Background: After the start of the COVID-19 pandemic, general fatigue in patients with long COVID and post-COVID-19 conditions (PCC) became a medical issue. Although there is a lack of evidence-based treatments, Kampo medicine (traditional Japanese medicine) has gained attention in Japan. At an outpatient clinic in Japan specializing in long COVID, 24% of all prescriptions were Kampo medicines, and 72% of Kampo medicine prescriptions were hochuekkito. However, there has been no prospective, quantitative study on the course of fatigue in patients with long COVID and PCC who were prescribed hochuekkito. The aim of this study was to clarify the course of fatigue in those patients. Methods: This study included patients aged 18 years or older with general fatigue who visited the long COVID specialized outpatient clinic at Okayama University Hospital and consented to participate after being prescribed hochuekkito. We reviewed the backgrounds of the patients, and we evaluated the patients' fatigue assessment scale in person or online. Results: Twenty patients were enrolled in this study from September to December in 2023. The average age of the patients was 42.9 years (SD: 15.8 years) and 12 patients (60%) were female. After hochuekkito administration, the fatigue assessment scale score decreased from 35.9 (SD: 5.9) at the initial visit to 31.2 (SD: 9.4) after 8 weeks, indicating a trend for improvement in fatigue (difference: 4.7; 95% CI: 0.5-8.9). Conclusions: A trend for improvement in fatigue was observed in patients with long COVID and PCC who were prescribed hochuekkito, indicating a potential benefit of hochuekkito for general fatigue in such patients. General fatigue in patients with long COVID or PCC can be classified as post-infectious fatigue syndrome and is considered a condition of qi deficiency in Kampo medicine, for which hochuekkito is appropriately indicated.

    DOI: 10.3390/jcm14041391

    PubMed

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  • Reliability and Validity of the Japanese Version of the Fatigue Assessment Scale. 査読

    Kazuki Tokumasu, Nobuyoshi Matsuki, Hirohisa Fujikawa, Yoko Sakamoto, Fumio Otsuka

    Internal medicine (Tokyo, Japan)   2024年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Objective General fatigue is one of the most frequent chief complaints in primary care, and an accurate assessment of fatigue has a direct impact on a patient's quality of life and treatment decisions. The Fatigue Assessment Scale (FAS), a measure of general fatigue, is useful for assessing fatigue in diverse cultures and diseases. However, there has been no study showing the reliability and validity of the scale in the Japanese context. The present study assessed the reliability and validity of the Japanese version of the FAS. Methods This study was conducted on 649 patients with long COVID who had a high frequency of general fatigue. To test the structural validity of the FAS, the patients were randomly divided into two groups: one in which an exploratory factor analysis (EFA) was conducted and one in which a confirmatory factor analysis (CFA) was conducted. Cronbach's alpha was calculated to assess internal consistency reliability. Results As 58 patients had missing values, we analyzed the data of 591 patients. The EFA led to an FAS comprising two factors. The CFA showed an acceptable fit for this two-factor model. The internal consistency was found to be good (Cronbach's alpha =0.89). Conclusion This study verified the structural validity and internal consistency and reliability of the Japanese version of the FAS. The results indicate that the Japanese version of the FAS is useful for assessing general fatigue in patients with long COVID in Japan.

    DOI: 10.2169/internalmedicine.4101-24

    PubMed

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  • コロナ禍における医学生のストレス知覚についての研究 対面とオンラインのコミュニケーションによる違い(Medical students' stress perception on in-person/online communication during the COVID-19 pandemic)

    徳増 一樹, 西村 義人, 坂本 陽子, 小比賀 美香子, 片岡 仁美, 大塚 文男

    医学教育   55 ( Suppl. )   223 - 223   2024年7月

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    記述言語:英語   出版者・発行元:(一社)日本医学教育学会  

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  • Factors Associated with Differences in Physicians’ Attitudes toward Percutaneous Endoscopic Gastrostomy Feeding in Older Adults Receiving End-of-Life Care in Japan: A Cross-Sectional Study 査読

    Yoko Sakamoto, Toshiharu Mitsuhashi, Katsuyuki Hotta

    Palliative Medicine Reports   2024年5月

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    掲載種別:研究論文(学術雑誌)  

    DOI: 10.1089/pmr.2023.0088

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  • Protocol for a randomised, placebo-controlled, double-blinded clinical trial on the effect of oestrogen replacement on physical performance to muscle resistance exercise for older women with osteoarthritis of knee joint: the EPOK trial 査読

    Tomohiro Mitoma, Jota Maki, Hikaru Ooba, Eriko Eto, Kasumi Takahashi, Tsunemasa Kondo, Tomohiro Ikeda, Yoko Sakamoto, Toshiharu Mitsuhashi, Hisashi Masuyama

    BMC Geriatrics   23 ( 1 )   2023年2月

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    掲載種別:研究論文(学術雑誌)   出版者・発行元:Springer Science and Business Media LLC  

    Abstract

    Background

    Knee osteoarthritis (KOA) is highly prevalent in older women, and previous studies suggest the involvement of hormonal factors play a role in the pathogenesis of osteoarthritis. KOA causes musculoskeletal impairment, resulting in decreased physical activity, muscle mass, and strength, which leads to sarcopenia and further increases the burden on healthcare systems. Oestrogen replacement therapy (ERT) improves joint pain and muscle performance in early menopausal women. Muscle resistance exercise (MRE) is a non-pharmacological method that preserves the physical functions of patients with KOA. However, data on short-term oestrogen administration combined with MRE in postmenopausal women, especially in those aged > 65 years, are limited. Therefore, this study presents a protocol of a trial aimed to examine the synergistic effect of ERT and MRE on lower-limb physical performance in older women with KOA.

    Methods

    We will conduct a double-blinded, randomised placebo-controlled trial in 80 Japanese women aged > 65 years living independently with knee pain. The participants will be randomly categorised into two groups: (1) 12-week MRE programme with transdermal oestrogen gel containing 0.54 mg oestradiol per push and (2) 12-week MRE programme with placebo gel. The primary outcome measured using the 30-s chair stand test, and secondary outcomes (body composition, lower-limb muscle strength, physical performance, self-reported measure of knee pain, and quality of life) will be measured at baseline, 3 months, and 12 months, and these outcomes will be analysed based on the intention-to-treat.

    Discussion

    The EPOK trial is the first study to focus on the efficacy of ERT on MRE among women aged > 65 years with KOA. This trial will provide an effective MRE to prevent KOA-induced lower-limb muscle weakness, confirming the benefit of short-term oestrogen administration.

    Trial registration

    Japan Registry of Clinical Trials: jRCTs061210062. Registered 17th December 2021, https://jrct.niph.go.jp/en-latest-detail/jRCTs061210062.

    DOI: 10.1186/s12877-023-03828-y

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    その他リンク: https://link.springer.com/article/10.1186/s12877-023-03828-y/fulltext.html

  • Differences in Stress Perception of Medical Students Depending on in-Person Communication and Online Communication during the COVID−19 Pandemic: A Japanese Cross-Sectional Survey 査読

    Kazuki Tokumasu, Yoshito Nishimura, Yoko Sakamoto, Mikako Obika, Hitomi Kataoka, Fumio Otsuka

    International Journal of Environmental Research and Public Health   20 ( 2 )   1579 - 1579   2023年1月

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    掲載種別:研究論文(学術雑誌)   出版者・発行元:MDPI AG  

    Background: Excessive psychological stress in medical students affects their mental health and causes problems such as burnout and depression. Furthermore, changes in the learning environment to online learning due to the COVID-19 pandemic have had a psychological effect on medical students. However, the relationships between medical students’ perceived stress and different methods of communication, including in-person and online communication, remain unclear. The purpose of this study was to investigate the differences in stress perception of medical students depending on in-person communication and online communication during the COVID-19 pandemic. Methods: This study was a cross-sectional study conducted from September to October in 2020. All of the students of Okayama University School of Medicine were asked to participate in a questionnaire survey. The explanatory variables were the frequency and length of communications with others (by in-person or online communication), empathy, and lifestyle. The main outcome measure was perceived stress. Subgroup analysis was conducted for students who preferred to be by themselves and students who preferred to study together and interact with other people. Univariate analysis and multivariate multiple regression analysis were conducted. Gender and grade, which have been shown to be associated with stress in previous studies, were used as covariates for multiple regression analysis. Results: Valid responses to the questionnaire survey were received from 211 (29.4%) of the 717 students. There was no significant association between perceived stress and online communication, but the number of people with which students had in-person communication (1–2 people compared to 0 as a control, regression coefficient [B] = −4.4, 95% confidence interval [CI]; −7.8, −1.1, more than 10 people, B = −12, 95% CI: −18, −5.8) and the length of communication (more than 120 min, B = −4.5, 95% CI: −8.1, −0.92) were associated with a reduction in perceived stress. In subgroup analysis, the number of people with in-person communication and the length of communication had significant associations with stress reduction even in the group of students who had a preference for being by themselves. Conclusion: In-person communications rather than online communications were associated with a lower level of perceived stress. In subgroup analysis, this trend was statistically significant in the group of students who had a preference for being by themselves.

    DOI: 10.3390/ijerph20021579

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  • Effectiveness of early exercise on reducing skeletal muscle loss during preoperative neoadjuvant chemotherapy for esophageal cancer 査読

    Tomohiro Ikeda, Kazuhiro Noma, Naoaki Maeda, Shunsuke Tanabe, Yoko Sakamoto, Yoshimi Katayama, Yasuhiro Shirakawa, Toshiyoshi Fujiwara, Masuo Senda

    Surgery Today   52 ( 8 )   1143 - 1152   2022年1月

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    掲載種別:研究論文(学術雑誌)   出版者・発行元:Springer Science and Business Media LLC  

    DOI: 10.1007/s00595-021-02449-5

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    その他リンク: https://link.springer.com/article/10.1007/s00595-021-02449-5/fulltext.html

▼全件表示

MISC

  • 高齢者への胃瘻造設に関する医師の認識の違いは何に起因しているのか 関連因子の探索的研究

    坂本 陽子, 三橋 利晴, 堀田 勝幸

    日本老年医学会雑誌   60 ( Suppl. )   137 - 137   2023年5月

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    記述言語:日本語   出版者・発行元:(一社)日本老年医学会  

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  • 医学生の自覚ストレスとコミュニケーションの関連 横断研究

    徳増 一樹, 西村 義人, 坂本 陽子, 小比賀 美香子, 片岡 仁美, 大塚 文男

    日本プライマリ・ケア連合学会学術大会   13回   O - 90   2022年6月

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    記述言語:日本語   出版者・発行元:(一社)日本プライマリ・ケア連合学会  

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  • 医師の胃瘻造設に対する認識の違いは何に起因しているのか 関連因子の探索的研究

    坂本 陽子

    日本公衆衛生学会総会抄録集   80回   253 - 253   2021年11月

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    記述言語:日本語   出版者・発行元:日本公衆衛生学会  

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  • COVID-19に対応した看護師の不安・看護上の課題の計量テキスト分析による探索

    三橋 利晴, 坂本 陽子

    日本公衆衛生学会総会抄録集   80回   306 - 306   2021年11月

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    記述言語:日本語   出版者・発行元:日本公衆衛生学会  

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共同研究・競争的資金等の研究

  • COVID-19診療現場の看護師が抱える心理的負担の要因

    研究課題/領域番号:21K11140  2021年04月 - 2024年03月

    日本学術振興会  科学研究費助成事業 基盤研究(C)  基盤研究(C)

    坂本 陽子, 三橋 利晴

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    配分額:1820000円 ( 直接経費:1400000円 、 間接経費:420000円 )

    本研究の目的はパンデミック初期においてCOVID-19感染者に対応した看護師の不安や看護上の課題を明らかにすることである。岡山県が実施した自記式アンケートの自由記載全文の内容および回答者の背景因子について、KHcoderを用いて計量テキスト分析を行い、看護師の心理的負担の要因についての探索的検証を行う。対象者は2020年6月までに岡山県で発生した新型コロナウイルス感染症の26症例目までを受け入れた岡山県内の9病院の看護師のうち、岡山県新型コロナウイルス感染症対策本部が各医療機関に配布した調査票に回答した看護師159人である。今年度はまずは紙媒体の手書きの自由記載文を全文エクセルにまとめ、選択肢項目も含めたデータセットの作成を行った。次に対象者の属性の記述を行うとともに、質問項目の自由記載のうち、下記の3項目に着目し解析を行った。1)受入:コロナ陽性患者を受け入れることについて、2)課題:課題・改善が必要だと感じたこと、3)提案:今後に向けての提案。これら3項目について形態素分析により頻出単語を上位150単語を抽出し、共起ネットワークを作成し共起関係、クラスターの描画を確認した。次に対応分析により勤続年数による使用語句の差異を示した。解析結果から、受け入れについては、不安や不満が強かったことが示された。勤続5年未満では「しょうがない」、勤続10-20年では「不満・負担」が強く、勤続20年超では「当然」という語句の特徴がみられ、COVID-19患者への看護対応においてはどのような役割を担っているかによって意見が異なると思われた。課題については、COVID-19に対応していない部署との感染対策の差や、現場の看護師のメンタルヘルス対応が必要であることが示された。提案については、メンタルヘルス対応や現場の意見を聴く機会を作ることが多く提案されていることが明らかとなった。

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  • 医師の胃瘻造設に対する認識の違いは何に起因しているのか:要因に関する探索的研究

    研究課題/領域番号:19K24198  2019年08月 - 2023年03月

    日本学術振興会  科学研究費助成事業 研究活動スタート支援  研究活動スタート支援

    坂本 陽子

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    配分額:2210000円 ( 直接経費:1700000円 、 間接経費:510000円 )

    本研究の目的は、人生の最終段階における高齢者の胃瘻造設に対する本邦医師の認識について調査し、医師間の認識に差異を生じる背景を明らかにすることである。今年度はWebアンケートの集計、解析を行った。まず、項目ごとの記述統計量を算出し、次に胃瘻造設を推奨に関し得られた回答を2群に分け説明変数とした多変量ロジスティック回帰分析を行い、オッズ比を算出した。さらに、推奨の是非に有意に関連があるとする項目についてもそれらを説明変数とした多変量解析を行い分析を行った。有意水準は0.05%とした。
    [結果]全国の医療機関、老人保健施設の医師546人から回答が得られた。内訳は内科系362人、外科系157人、救急麻酔医27人であった。胃瘻推奨の有無に対するロジスティック回帰分析の結果、医療機関別では診療所・老健の医師は一般病院の医師と比べ、胃瘻推奨のオッズ比が0.54(95%CI:0.27-1.07)であった。診療科別、高齢者の診療経験の有無、頻度での有意差はなかった。胃瘻造設術の実施医療機関に勤務している医師はオッズ比2.01(95%Cl:1.17-3.46)と胃瘻推奨が有意に高い結果であった。また、胃瘻の誤唖性肺炎の予防効果の有無についての認識は、あり58%、なし42%とほぽ半数に分かれ、年齢、医療機関、診療科で有意差があった。ガイドラインを知らない医師は何らかのガイドラインを参考にしている医師と比べて、1.8倍予防効果ありと認識していた。さらに、胃瘻を推奨する医師は差し控えの提示に抵抗を感じる人がオッズ比2.05(95%Cl:1.25-3.36)と有意に高く、差し控えの提示に障壁となる項目では「親族間の意見の相遠」「家族との信頼関係の変化」「法的問題への懸念」が上位を占める結果であった。
    上記の解析結果について2021年10月21日開催の第80回日本公衆衛生学会にて演題発表を行った。

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担当授業科目

  • 社会医歯科学 (2021年度) 集中  - その他