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Ohinata Hironori

Faculty of Health Sciences　Health Sciences　Fundamental NursingLecturer

Researcher basic information

■ Degree
  • 修士（看護学）, 慶應大学, Mar. 2020
  • 博士（看護学）, 東北大学, Mar. 2023
■ URL
researchmap URLホームページURL■ Various IDs
ORCID IDJ-Global ID■ Research Keywords and Fields
Research Field
  • Life Science, Clinical nursing, フレイル, 緩和ケア, Phase of Illness
■ Educational Organization

Career

■ Career
Educational Background
  • Apr. 2020 - Mar. 2023, Tohoku University, Graduate School of Medicine, Department of Palliative Nursing
  • Apr. 2018 - Mar. 2020, Keio University, Graduate School of Health Management, 修士（看護学）, Japan

Research activity information

■ Papers
  • Measuring the Complexity of Palliative Care: A Single-Center Retrospective Study
    Hironori Ohinata; Mitsunori Miyashita; Isseki Maeda
    Journal of Pain and Symptom Management, Oct. 2025, [Peer-reviewed], [Lead author]
    Scientific journal
  • Palliative care needs of patients with chronic limb-threatening ischemia: A scoping review
    Hironori Ohinata; Naomi Akiyama; Arisa Kawashima; Hanako Nozu; Haruka Tamura; Kei Matoba; Miyuki Toda; Shintaro Togashi
    Journal of Pain and Symptom Management, Aug. 2025, [Peer-reviewed], [Lead author]
    Scientific journal
  • 脳卒中リハビリテーション看護認定看護師における脳卒中後疲労の認識に関する実態調査—A Survey on Recognition of Post-Stroke Fatigue Among Certified Nurses in Stroke Rehabilitation Nursing
    柳本 麻衣子; 雲 杉; 大日方 裕紀; 佐藤 善久; 結城 美智子
    日本健康医学会雑誌 = Journal of Japan Health Medicine Association / 日本健康医学会 編, 34, 2, 225, 231, 東京 : 日本健康医学会, Jul. 2025, [Peer-reviewed]
    Japanese
  • Reliability and validity of the Japanese version of the palliative care phase in palliative care facilities.
    Hironori Ohinata; Masanori Mori; Maho Aoyama; Nao Ito; Tomoko Shigeno; Tomoya Iida; Yuko Matsumura; Hiroaki Tsukuura; Akemi Shirado Naito; Kengo Imai; Naosuke Yokomichi; Tatsuya Morita; Mitsunori Miyashita
    Japanese journal of clinical oncology, 08 May 2025, [Peer-reviewed], [Lead author], [International Magazine]
    English, Scientific journal, BACKGROUND: Palliative care phase is a tool to assess five phases that reflect a patient's care needs: stable, unstable, deteriorating, terminal, and bereavement. The palliative care phase is routinely used to describe the clinical status of patients and their families. Australia has established nationwide benchmarks for comparing care services. However, the reliability of palliative care in Japan has not yet been verified. This study aimed to develop a Japanese version of the palliative care phase and examine its inter-rater reliability. METHODS: This was a multicenter, cross-sectional study. Based on previous studies, two healthcare providers evaluated the single-patient phase and calculated kappa coefficients. The reliability was assessed between March 2024 and November 2024 in a palliative care facility in Japan. RESULTS: A total of 419 phase evaluations were conducted. The inter-rater reliability was a kappa of 0.47 (95% confidence interval 0.40-0.54). Assessment disagreements were most common during the unstable and deteriorating phases (11.7%). There were no statistically significant differences in the matches or mismatches in the assessment of the adequacy of the phases (P = 0.338). CONCLUSION: The Japanese version of the palliative care phase was well-adapted for use in clinical palliative care. However, the concepts underlying these phases are not clearly distinguishable. In the future, we need to further educate healthcare providers and accumulate experience through on-the-job training to improve the quality of care through palliative care outcome measurements and benchmarking during the palliative care phase.
  • Association Between Dynapenia and Polypharmacy Among Community-dwelling Older Adults
    Hironori Ohinata; Miku Izutsu; Shan Yun; Naoko Miyajima; Michiko Yuki
    Aging Medicine and Healthcare, Apr. 2025, [Peer-reviewed], [Lead author]
  • Literature Review on the Impact of COVID-19 Epidemic on the Quality of Life of Older Adults Residing in Communities
    Konno Ryo; Ohinata Hironori; Yun Shan; Yuki Michiko
    JOURNAL OF JAPAN HEALTH MEDICINE ASSOCIATION, 33, 4, 550, 558, JAPAN HEALTH MEDICINE ASSOCIATION, 30 Jan. 2025, [Peer-reviewed]
    Japanese, The coronavirus disease 2019 (COVID-19) represents a global crisis and a life-threatening concern, particularly for older adults. Consequently, measures implemented for infection prevention have significantly altered the daily lives of community-dwelling older adults, with a presumed impact on their quality of life. This study aimed to identify, through a literature review, the shifts in the quality of life experienced by community-dwelling older adults during the COVID-19 epidemic, as well as the influencing factors. Primary keywords such as COVID-19, community-dwelling elderly, and quality of life were employed in the search across five databases. Screening was conducted according to eligibility criteria. Literature published up to March 2023 was targeted. A total of 28 pertinent was identified. Quality of life increased, maintained, and decreased during the COVID-19 epidemic. Factors affecting the quality of life were age, income, and reduced social activities stemming from a reluctance to go out due to infection control measures. Especially, social isolation due to behavioral restrictions was a factor that affected mental health and decreased quality of life. Future research should examine ways to maintain social connections using network technology while preventing infection.
  • Accessibility of Specialized Palliative Care in Hokkaido using Open Data
    Hironori Ohinata; Shintaro Togashi
    Palliative Care Research, 2025, [Peer-reviewed], [Lead author]
    Scientific journal
  • Association between Dynapenia and Multimorbidity in Community-Dwelling Older Adults: A Systematic Review
    Hironori Ohinata; Shan Yun; Naoko Miyajima; Michiko Yuki
    Annals of Geriatric Medicine and Research, 30 Sep. 2024, [Peer-reviewed], [Lead author]
    Scientific journal
  • Phase of Illness at the time of being referred to the hospital palliative care team and changes after the intervention
    Hironori Ohinata; Hideyuki Hirayama; Maho Aoyama; Eriko Satomi; Yoshiyuki Kizawa; Mayuko Miyazaki; Keita Tagami; Ryuichi Sekine; Kozue Suzuki; Nobuyuki Yotani; Koji Sugano; Hirofumi Abo; Akihiro Sakashita; Kazuki Sato; Sari Nakagawa; Yoko Nakazawa; Jun Hamano; Mitsunori Miyashita
    Progress in Palliative Care, 03 Mar. 2024, [Peer-reviewed], [Lead author]
    Scientific journal
  • 看護実習前知識確認試験問題の正答率と識別指数を用いた問題の適切性の検討 Computer Based Testing導入に向けた取り組み
    稲岡 希実子; 大日方 裕紀; 古山 陽一; 武田 彩子; 中川 陽子; 二瓶 映美; 菱谷 純子; 安田 真美; 岡田 佳詠
    国際医療福祉大学学会誌, 29, 1, 146, 155, 国際医療福祉大学学会, Mar. 2024, [Peer-reviewed]
    Japanese
  • Polypharmacy, potentially inappropriate medication, and dysphagia in older inpatients; A multi-center cohort study.
    Shintaro Togashi; Hironori Ohinata; Taiji Noguchi; Hidetaka Wakabayashi; Mariko Nakamichi; Akio Shimizu; Shinta Nishioka; Ryo Momosaki
    Annals of geriatric medicine and research, 17 Jan. 2024, [Peer-reviewed], [International Magazine]
    English, Scientific journal, BACKGROUND: Although the relationship between medication status, symptomatology, and outcomes has been evaluated, data on the prevalence of polypharmacy and potentially inappropriate medications (PIMs) and the association of polypharmacy and PIMs with swallowing function during follow-up are limited among hospitalized patients aged ≥65 years with dysphagia. METHODS: In this 19-center cohort study, we registered 467 inpatients aged ≥65 years and evaluated those with the Food Intake LEVEL Scale (FILS) scores ≤8 between November 2019 and March 2021. Polypharmacy was defined as prescribing ≥5 medications and PIMs were identified based on the 2023 Updated Beers criteria®. We applied a generalized linear regression model to examine the association of polypharmacy and PIMs with FILS score at discharge. RESULTS: We analyzed 399 participants (median age, 83.0 years; males, 49.8%). The median follow-up was 51.0 days interquartile range, 22.0-84.0 days]. Polypharmacy and PIMs were present in 67.7% of and 56.1% of patients, respectively. After adjusting for covariates, neither polypharmacy (β = 0.05 [95% confidence interval (CI), -0.04-0.13], p = 0.30) nor non-steroidal anti-inflammatory medications (β = 0.09 [95%CI, -0.02-0.19], p = 0.10) were significantly associated with FILS score at discharge. CONCLUSIONS: The results of this study indicated a high proportion of polypharmacy and PIMs among inpatients aged ≥65 years with dysphagia. Although these prescribed conditions were not significantly associated with swallowing function at discharge, our findings suggest the importance of regularly reviewing medications to ensure the appropriateness of prescriptions when managing older inpatients.
  • Phase of Illness (Palliative Care Phase) in Palliative Care: A Literature review
    大日方裕紀; 大日方裕紀; 青山真帆; 宮下光令
    日本がん看護学会誌(Web), 37, 2023, [Peer-reviewed], [Lead author]
  • Symptoms, performance status and phase of illness in advanced cancer: multicentre cross-sectional study of palliative care unit admissions.
    Hironori Ohinata; Maho Aoyama; Yusuke Hiratsuka; Masanori Mori; Ayako Kikuchi; Hiroaki Tsukuura; Yosuke Matsuda; Kozue Suzuki; Hiroyuki Kohara; Isseki Maeda; Tatsuya Morita; Mitsunori Miyashita
    BMJ supportive & palliative care, 27 Oct. 2022, [Peer-reviewed], [Lead author], [International Magazine]
    English, Scientific journal, OBJECTIVES: To clarify the relationship between Phase of Illness at the time of admission to palliative care units and symptoms of patients with advanced cancer. METHODS: This study was a secondary analysis of the East Asian collaborative cross-cultural Study to Elucidate the Dying process. Palliative physicians recorded data, including Phase of Illness, physical function and the Integrated Palliative care Outcome Scale. We used multinomial logistic regression to analyse ORs for factors associated with Phase of Illness. Twenty-three palliative care units in Japan participated from January 2017 to September 2018. RESULTS: In total, 1894 patients were analysed-50.9% were male, mean age was 72.4 (SD±12.3) years, and Phase of Illness at the time of admission to the palliative care unit comprised 177 (8.9%) stable, 579 (29.2%) unstable, 921 (46.4%) deteriorating and 217 (10.9%) terminal phases. Symptoms were most distressing in the terminal phase for all items, followed by deteriorating, unstable and stable (p<0.001). The stable phase had lower association with shortness of breath (OR 0.73, 95% CI 0.57 to 0.94) and felt at peace (OR 0.73, 95% CI 0.56 to 0.90) than the unstable phase. In the deteriorating phase, weakness or lack of energy (OR 1.20, 95% CI 1.02 to 1.40) were higher, while drowsiness (OR 0.82, 95% CI 0.71 to 0.97) and felt at peace (OR 0.81, 95% CI 0.71 to 0.94) were significantly lower. CONCLUSION: Our study is reflective of the situation in palliative care units in Japan. Future studies should consider the differences in patients' medical conditions and routinely investigate patients' Phase of Illness and symptoms. TRIAL REGISTRARION NUMBER: UMIN000025457.
  • Sensitivity and Specificity of Body Mass Index for Sarcopenic Dysphagia Diagnosis among Patients with Dysphagia: A Multi-Center Cross-Sectional Study.
    Shintaro Togashi; Hidetaka Wakabayashi; Hironori Ohinata; Shinta Nishioka; Yoji Kokura; Ryo Momosaki
    Nutrients, 14, 21, 26 Oct. 2022, [Peer-reviewed], [International Magazine]
    English, Scientific journal, The accuracy of body mass index (BMI) for sarcopenic dysphagia diagnosis, which remains unknown, was evaluated in this study among patients with dysphagia. We conducted a 19-site cross-sectional study. We registered 467 dysphagic patients aged ≥ 20 years. Sarcopenic dysphagia was assessed using a reliable and validated diagnostic algorithm. BMI was assessed using the area under the curve (AUC) in the receiver operating characteristic analysis to determine diagnostic accuracy for sarcopenic dysphagia. The study included 460 patients (median age, 83.0 years (76.0-88.0); men, 49.8%). The median BMI was 19.9 (17.3-22.6) kg/m2. Two hundred eighty-four (61.7%) patients had sarcopenic dysphagia. The AUC for sarcopenic dysphagia was 0.60-0.62 in the overall patients, male, female, and patients aged ≥ 65 years The BMI cut-off value for sarcopenic dysphagia diagnosis was 20.1 kg/m2 in the overall patients (sensitivity, 58.1%; specificity, 60.2%) and patients aged ≥ 65 years (sensitivity, 59.8%; specificity, 61.8%). Conclusion: Although the AUC, sensitivity and specificity of BMI for sarcopenic dysphagia diagnosis was approximately 0.6, BMI < 20.0 kg/m2 might be a predictor for sarcopenic dysphagia. In clinical settings, if patients with dysphagia have a BMI < 20.0 kg/m2, then sarcopenic dysphagia should be suspected as early as possible after admission.
  • Complexity in the context of palliative care: a systematic review.
    Hironori Ohinata; Maho Aoyama; Mitsunori Miyashita
    Annals of palliative medicine, 30 Sep. 2022, [Peer-reviewed], [Lead author], [International Magazine]
    English, Scientific journal, BACKGROUND: People receiving palliative care have complex, wide-ranging, and changing needs, not just physical distress, but also psychosocial, practical, and spiritual. Influences on complexity in palliative care are different among healthcare providers and may depend on diverse aspects of the patient's condition, time, and environment. Therefore, this study aimed to integrate and describe the perspective of complexity in palliative care. METHODS: We used an integrative review, which is a method of compiling, summarizing, and analyzing existing insights from previous studies. We conducted an electronic literature search in MEDLINE (Ovid), PsycINFO (EBSCOhost), Web of Science Core Collection, and CINAHL (EBSCOhost), examining literature from May 1972 to September 2020 and updated in December 2020. Subsequently, synthesis without meta-analysis of the findings was completed. RESULTS: We identified 32 peer-reviewed articles published in English. The included literature mainly originated in Europe and the United States. The research methods included quantitative studies (n=13), qualitative studies (n=12), case studies (n=3), and reviews (n=4). We identified 29 that influenced complexity in palliative care, 25 perceptions of the patient, including background and physical, psychological, social, and spiritual; two perceptions in the healthcare setting; and two perceptions in the socio-cultural setting. Above all, the perceptions of complexity in palliative care included younger age, prognosis, and spirituality. In addition, we added the identified perceptions of complexity with references to the complexity model in palliative care. DISCUSSION: Although this review was limited in its search strategy and some data sources may have been overlooked, it still provided perceptions that influenced complexity in palliative care. These complex influencing perceptions are necessary for patients to receive appropriate palliative care at the right time and for health care providers to conduct a multi-disciplinary team approach. Furthermore, longitudinal prospective data are needed to examine the changes and relationships among complexity over time.
  • The Relationship between Frailty and Quality of Life in Older Digestive Cancer Patients when Choosing an Anticancer Drug Regimen
    Ohinata Hironori; Yagasaki Kaori; Hamamoto Yasuo; Hirata Kenro; Sukawa Yasutaka; Komatsu Hiroko
    Journal of Japan Academy of Nursing Science, 42, 254, 262, Japan Academy of Nursing Science, 2022, [Peer-reviewed], [Lead author]
    Japanese, Aim: The study aimed to investigate the relationship between frailty and quality of life (QOL) in older patients with gastrointestinal cancer at the time when an anticancer drug regimen is changed.

    Methods: We conducted a cross-sectional observational study of gastrointestinal cancer patients aged 65 years or older at the time of anticancer drug change. Frailty and QOL were measured using G8 and EQ-5D-5L.

    Results: Fifty-one patients agreed to participate in this study. Data collection and analysis were conducted. Forty (78.4%) older patients with gastrointestinal cancer were considered frail. Flail group had a lower BMI (p < .001), thinner calf (p = .023), and lower quality of life (p = .04) compared to the non-frail group.

    Conclusion: This study showed the characteristics of frail patients with gastrointestinal cancer when changing anticancer drug regimen and the population that is vulnerable to falling into the frail cycle. The assessment of frailty in older cancer patients receiving anticancer drugs was an essential factor for QOL-conscious treatment decision.
■ Other Activities and Achievements
■ Syllabus
  • 看護研究Ⅱ, 2024年, 学士課程, 医学部
  • 老年看護学実習Ⅰ, 2024年, 学士課程, 医学部
  • 老年看護学援助論, 2024年, 学士課程, 医学部
  • リハビリテーション看護, 2024年, 学士課程, 医学部
  • 保健・医療概論, 2024年, 学士課程, 医学部
  • 看護研究Ⅲ, 2024年, 学士課程, 医学部
  • 看護研究Ⅳ, 2024年, 学士課程, 医学部
■ Research Themes
  • 緩和ケアの必要性を示す尺度の信頼性の検証とディスカッションマップの開発
    科学研究費助成事業
    01 Apr. 2023 - 31 Mar. 2025
    大日方 裕紀
    本研究は、緩和ケアの必要性を評価するための尺度である「Phase of Illness」の信頼性と妥当性を検証し、緩和ケアの経過を俯瞰するディスカッションマップを作成することを目標としている。この尺度は、緩和ケアの適切な時期の判断や、緩和ケアの介入のアウトカムとして有効であるかどうかを明らかにすることも可能であると考えられている。
    初年度にあたる2023年度は、Phase of Illnessに関する文献レビューを実施し、海外でのPhase of Illnessの研究状況や活用の方法を集約し、日本における実用性を評価した。その結果、「Phase of Illness」はがん患者だけでなく非がん患者にも適用可能であり、医療提供体制や職種を問わず、医療者が容易に評価できることが明らかになった。さらに、「Phase of Illness」は、患者の病状の変化に応じて柔軟に対応できるため、緩和ケアの質を向上させるための有効なツールであると考えられた。これらのことから、Phase of Illnessの評価一致性による信頼性と症状評価による概念妥当性を検証するため、新たな調査項目をエキスパートパネルで検討を行った。対象施設は、緩和ケア病棟および在宅緩和ケア施設を含む複数の医療機関で、データ収集と分析を進めている。この調査により、Phase of Illnessが実際の臨床現場でどのように活用されているか、また、その活用が緩和ケアの質にどのような影響を与えているかを評価することができる。
    日本学術振興会, 若手研究, 北海道大学, 23K16443