Updated on 2024/10/22

写真a

 
KURIHARA Masaru
 
Organization
Nagoya University Hospital Department of Patient Safety Assistant professor of hospital
Title
Assistant professor of hospital

Research Areas 1

  1. Life Science / Medical management and medical sociology

 

Papers 11

  1. Prospects for Patient and Public Involvement (PPI) in Primary Care Research: "Promoting PPI"

    Yoshida Tomomi, Inoue Keiko, Kurihara Masaru, Yasumoto Yusuke, Kosaka Shintaro, Aoki Takuya

    An Official Journal of the Japan Primary Care Association   Vol. 47 ( 2 ) page: 69 - 72   2024.6

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    Language:Japanese   Publisher:JAPAN PRIMARY CARE ASSOCIATION  

    DOI: 10.14442/generalist.47.69

    CiNii Research

  2. Development of a scoring system to quantify errors from semantic characteristics in incident reports

    Uematsu, H; Uemura, M; Kurihara, M; Yamamoto, H; Umemura, T; Kitano, F; Hiramatsu, M; Nagao, Y

    BMJ HEALTH & CARE INFORMATICS   Vol. 31 ( 1 )   2024.4

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    Publisher:BMJ Health and Care Informatics  

    Objectives Incident reporting systems are widely used to identify risks and enable organisational learning. Free-text descriptions contain important information about factors associated with incidents. This study aimed to develop error scores by extracting information about the presence of error factors in incidents using an original decision-making model that partly relies on natural language processing techniques. Methods We retrospectively analysed free-text data from reports of incidents between January 2012 and December 2022 from Nagoya University Hospital, Japan. The sample data were randomly allocated to equal-sized training and validation datasets. We conducted morphological analysis on free text to segment terms from sentences in the training dataset. We calculated error scores for terms, individual reports and reports from staff groups according to report volume size and compared these with conventional classifications by patient safety experts. We also calculated accuracy, recall, precision and F-score values from the proposed ‘report error score’. Results Overall, 114 013 reports were included. We calculated 36 131 ‘term error scores’ from the 57 006 reports in the training dataset. There was a significant difference in error scores between reports of incidents categorised by experts as arising from errors (p<0.001, d=0.73 (large)) and other incidents. The accuracy, recall, precision and F-score values were 0.8, 0.82, 0.85 and 0.84, respectively. Group error scores were positively associated with expert ratings (correlation coefficient, 0.66; 95% CI 0.54 to 0.75, p<0.001) for all departments. Conclusion Our error scoring system could provide insights to improve patient safety using aggregated incident report data.

    DOI: 10.1136/bmjhci-2023-100935

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  3. Japanese Patient Engagement Promotion Training (J-PEPT): Learning course on the implementation strategy of patient engagement

    Kurihara, M; Kosaka, S; Yasumoto, Y; Yamaguchi, A; Yoshida, T; Iyasu, A; Kashiwagi, H; Kimura, T; Enomoto, K; Tanno, K; Inoue, K; Ishihara, Y; Iwaya, N; Takuya, A

    JOURNAL OF GENERAL AND FAMILY MEDICINE   Vol. 25 ( 2 ) page: 112 - 113   2024.3

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    Publisher:Journal of General and Family Medicine  

    DOI: 10.1002/jgf2.665

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  4. Association of sleep quality with duty hours, mental health, and medical errors among Japanese postgraduate residents: a cross-sectional study

    Nagasaki, K; Kobayashi, H; Nishizaki, Y; Kurihara, M; Watari, T; Shimizu, T; Yamamoto, Y; Shikino, K; Fukui, S; Nishiguchi, S; Katayama, K; Tokuda, Y

    SCIENTIFIC REPORTS   Vol. 14 ( 1 )   2024.1

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    Publisher:Scientific Reports  

    Long duty hours (DH) impair sleep and negatively affect residents’ health and medical safety. This cross-sectional study investigated the association among residents’ DH, sleep duration, insomnia, sleep impairment, depressive symptoms, and self-reported medical errors among 5579 residents in Japan who completed the General Medicine In-Training Examination (2021) and participated in the training-environment survey. Weekly DH was classified under seven categories. Sleep duration and insomnia symptoms, from the Athens Insomnia Scale, were analysed to determine sleep impairment; depressive symptoms and medical errors were self-reported. Among 5095 residents, 15.5% slept < 5 h/day, and 26.7% had insomnia. In multivariable analysis, compared with ≥ 60 and < 70, DH ≥ 90 h/week associated with shorter sleep duration and worsen insomnia symptoms. Shorter durations of sleep and more intense symptoms of insomnia were associated with increased depressive symptoms. Medical errors increased only among residents with insomnia, but were not associated with sleep duration. DH > 90 h/week could lead to shorter sleep duration, worsen insomnia symptoms, and negatively impact well-being and medical safety. There was no significant association between sleep duration and medical errors; however, insomnia conferred an increased risk of medical errors. Limiting DH for residents to avoid excessive workload can help improve resident sleep, enhance resident well-being, and potentially reduce insomnia-associated medical errors.

    DOI: 10.1038/s41598-024-51353-8

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  5. Hospital Use of a Web-Based Clinical Knowledge Support System and In-Training Examination Performance Among Postgraduate Resident Physicians in Japan: Nationwide Observational Study

    Kataoka, K; Nishizaki, Y; Shimizu, T; Yamamoto, Y; Shikino, K; Nojima, M; Nagasaki, K; Fukui, S; Nishiguchi, S; Katayama, K; Kurihara, M; Ueda, R; Kobayashi, H; Tokuda, Y

    JMIR MEDICAL EDUCATION   Vol. 10   2024

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    Publisher:JMIR Medical Education  

    Background: The relationship between educational outcomes and the use of web-based clinical knowledge support systems in teaching hospitals remains unknown in Japan. A previous study on this topic could have been affected by recall bias because of the use of a self-reported questionnaire. Objective: We aimed to explore the relationship between the use of the Wolters Kluwer UpToDate clinical knowledge support system in teaching hospitals and residents’ General Medicine In-Training Examination (GM-ITE) scores. In this study, we objectively evaluated the relationship between the total number of UpToDate hospital use logs and the GM-ITE scores. Methods: This nationwide cross-sectional study included postgraduate year–1 and –2 residents who had taken the examination in the 2020 academic year. Hospital-level information was obtained from published web pages, and UpToDate hospital use logs were provided by Wolters Kluwer. We evaluated the relationship between the total number of UpToDate hospital use logs and residents’ GM-ITE scores. We analyzed 215 teaching hospitals with at least 5 GM-ITE examinees and hospital use logs from 2017 to 2019. Results: The study population consisted of 3013 residents from 215 teaching hospitals with at least 5 GM-ITE examinees and web-based resource use log data from 2017 to 2019. High-use hospital residents had significantly higher GM-ITE scores than low-use hospital residents (mean 26.9, SD 2.0 vs mean 26.2, SD 2.3; P=.009; Cohen d=0.35, 95% CI 0.08-0.62). The GM-ITE scores were significantly correlated with the total number of hospital use logs (Pearson r=0.28; P<.001). The multilevel analysis revealed a positive association between the total number of logs divided by the number of hospital physicians and the GM-ITE scores (estimated coefficient=0.36, 95% CI 0.14-0.59; P=.001). Conclusions: The findings suggest that the development of residents’ clinical reasoning abilities through UpToDate is associated with high GM-ITE scores. Thus, higher use of UpToDate may lead physicians and residents in high-use hospitals to increase the implementation of evidence-based medicine, leading to high educational outcomes.

    DOI: 10.2196/52207

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  6. Safety culture survey among medical residents in Japan: a nationwide cross-sectional study

    Watari, T; Kurihara, M; Nishizaki, Y; Tokuda, Y; Nagao, Y

    BMJ OPEN QUALITY   Vol. 12 ( 4 )   2023.10

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    Publisher:BMJ Open Quality  

    Purpose This study aimed to examine safety culture among Japanese medical residents through a comparative analysis of university and community hospitals and an investigation of the factors related to safety culture. Method This nationwide cross-sectional study used a survey to assess first and second-year medical residents' perception of safety culture. We adapted nine key items from the Safety Awareness Questionnaire to the Japanese training environment and healthcare system. Additionally, we explored specific factors relevant to safety culture, such as gender, year of graduation, age, number of emergency room duties per month, average number of admissions per day, incident experience, incident reporting experience, barriers to incident reporting and safety culture. We analysed the data using descriptive statistics and multivariate logistic regression analysis. Results We included 5289 residents (88.6%) from community training hospitals and 679 residents (11.4%) from university hospitals. A comparative analysis of safety culture between the two groups on nine representative questions revealed that the percentage of residents who reported a positive atmosphere at their institution was significantly lower at university hospitals (81.7%) than at community hospitals (87.8%) (p<0.001). The other items were also significantly lower for university hospital residents. After adjusting for multivariate logistic analysis, university hospital training remained significantly and negatively associated with all nine safety culture items. Furthermore, we also found that university hospital residents perceived a significantly lower level of safety culture than community hospital residents. Implications Further research and discussion on medical professionals' perception of safety culture in their institutions as well as other healthcare professionals' experiences are necessary to identify possible explanations for our findings and develop strategies for improvement.

    DOI: 10.1136/bmjoq-2023-002419

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  7. Association between prolonged weekly duty hours and self-study time among residents: a cross-sectional study

    Nagasaki, K; Nishizaki, Y; Shinozaki, T; Shimizu, T; Yamamoto, Y; Shikino, K; Fukui, S; Nishiguchi, S; Kurihara, M; Katayama, K; Kobayashi, H; Tokuda, Y

    POSTGRADUATE MEDICAL JOURNAL   Vol. 99 ( 1176 ) page: 1080 - 1087   2023.9

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    Publisher:Postgraduate Medical Journal  

    Purpose: In 2024, the Japanese government will enforce a maximum 80-hour weekly duty hours (DHs) regulation for medical residents. Although this reduction in weekly DHs could increase the self-study time (SST) of these residents, the relationship between these two variables remains unclear. The aim of the study was to investigate the relationship between the SST and DHs of residents in Japan. Methods: In this nationwide cross-sectional study, the subjects were candidates of the General Medicine In-Training Examination in the 2020 academic year. We administered questionnaires and categorically asked questions regarding daily SST and weekly DHs during the training period. To account for hospital variability, proportional odds regression models with generalized estimating equations were used to analyse the association between SST and DHs. Results: Of the surveyed 6117 residents, 32.0% were female, 49.1% were postgraduate year-1 residents, 83.8% were affiliated with community hospitals, and 19.9% worked for ≥80 hours/week. Multivariable analysis revealed that residents working ≥80 hours/week spent more time on self-study than those working 60–70 hours/week. Conversely, residents who worked <50 hours/week spent less time on self-study than those who worked 60–70 hours/week. The factors associated with longer SST were sex, postgraduate year, career aspiration for internal medicine, affiliation with community hospitals, academic involvement, and well-being. Conclusion: Residents with long DHs had longer SSTs than residents with short DHs. Future DH restrictions may not increase but rather decrease resident SST. Effective measures to encourage self-study are required, as DH restrictions may shorten SST.

    DOI: 10.1093/postmj/qgad044

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  8. Melatonin affects cognitive performance to emotional stimuli in emotional stroop task

    Kurihara, M; Ohira, H

    PSYCHONEUROENDOCRINOLOGY   Vol. 153   page: S21 - S21   2023.7

  9. Impact of duty hours on competency-related knowledge acquisition among community hospital residents

    Nagasaki K., Nishizaki Y., Hachisuka C., Shinozaki T., Shimizu T., Yamamoto Y., Shikino K., Fukui S., Nishiguchi S., Katayama K., Kurihara M., Kobayashi H., Tokuda Y.

    Journal of General and Family Medicine   Vol. 24 ( 2 ) page: 87 - 93   2023.3

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    Publisher:Journal of General and Family Medicine  

    Background: The effect of duty hour (DH) restrictions on postgraduate residents' acquisition of clinical competencies is unclear. We evaluated the relationship between DHs and competency-related knowledge acquisition using the General Medicine In-training Examination (GM-ITE). Methods: We conducted a multicenter, cross-sectional study of community hospital residents among 2019 GM-ITE examinees. Self-reported average DHs per week were classified into five DH categories and the competency domains were classified into four areas: symptomatology and clinical reasoning (CR), physical examination and clinical procedure (PP), medical interview and professionalism (MP), and disease knowledge (DK). The association between these scores and DHs was examined using random-intercept linear models with and without adjustment for confounding factors. Results: We included 4753 participants in the analyses. Of these, 31% were women, and 49.1% were in the postgraduate year (PGY) 2. Mean CR and MP scores were lower among residents in Category 1 (<50 h) than in residents in Category 3 (≥60 and <70 h; reference group). Mean DK scores were lower among residents in Categories 1 and 2 (≥50 and <60 h) than in the reference group. PGY-2 residents in Categories 1 and 2 had lower CR scores than those in Category 3; however, PGY-1 residents in Category 5 showed higher scores. Conclusions: The relationship between DHs and each competency area is not strictly linear. The acquisition of knowledge of physical examination and clinical procedures skills in particular may not be related to DHs.

    DOI: 10.1002/jgf2.594

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  10. Root cause analysis to identify major barriers to the promotion of patient safety in Japan

    Kurihara, M; Watari, T; Kosaka, S; Enomoto, K; Kimura, T; Taniguchi, K; Watanuki, S; Nagoshi, K; Koizumi, S

    JOURNAL OF PATIENT SAFETY AND RISK MANAGEMENT   Vol. 28 ( 1 ) page: 9 - 14   2023.2

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    Publisher:Journal of Patient Safety and Risk Management  

    Objectives: Despite existing patient safety measures, both outside and inside hospitals, barriers to patient safety prevail. We aimed to identify the current contributory factors to patient safety in Japan. Methods: This qualitative study included nine expert Japanese health care providers working both inside and outside hospitals. These participants, who included six physicians, one nurse, one pharmacist, and one physical therapist, work across a broad spectrum in government policy and public health, academia, and safety management. Root cause analysis using the online Kawakita Jiro method (KJ method or affinity diagram) was conducted. We labeled and summarized the classification in a fishbone diagram to elucidate barriers to patient safety in Japan. Results: We identified specific factors in six main groups: the hospital system, education, law and policy, culture and society, patient centricity, and multidisciplinary cooperation. Quality of care, patient engagement, and shortage of patient safety specialists were crucial factors for multiple groups. Conclusions: This study clarifies components of patient safety in Japan and provides basic data for promoting comprehensive patient safety in the future. Periodic root cause analysis of comprehensive patient safety issues can help develop strategies to promote patient safety at both the hospital and national levels.

    DOI: 10.1177/25160435221144134

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  11. Relationship between COVID-19 care and burnout among postgraduate clinical residents in Japan: a nationwide cross-sectional study

    Nishizaki, Y; Nagasaki, K; Shikino, K; Kurihara, M; Shinozaki, T; Kataoka, K; Shimizu, T; Yamamoto, Y; Fukui, S; Nishiguchi, S; Katayama, K; Kobayashi, H; Tokuda, Y

    BMJ OPEN   Vol. 13 ( 1 )   2023.1

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    Publisher:BMJ Open  

    Objective The relationship between the care of patients with COVID-19 and mental health among resident physicians in Japan is imperative for ensuring appropriate care of patients with COVID-19 and should be clarified. We herein assessed the relationship between the care of patients with COVID-19 and mental health among postgraduate year 1 (PGY-1) and PGY-2 resident physicians and factors associated with mental health. Design This nationwide cross-sectional study analysed data obtained using the clinical training environment self-reported questionnaire. Setting An observational study across Japan among resident physicians (PGY-1 and PGY-2) from 583 teaching hospitals. Participants Examinees who took the general medicine in-training examination of academic year 2020. Primary and secondary outcome measures The Patient Health Questionnaire and Mini-Z 2.0 were used to assess mental health, and experience of caring for patients with COVID-19 was divided into three groups (none, 1-10 and ≥11). The prevalence of mental conditions in the three groups was compared using the 'modified' Poisson generalised estimating equations by adjusting for prefecture-level, hospital-level and resident-level variables. Results Of the 5976 participants analysed, 50.9% were PGY-1. The prevalence of burnout was 21.4%. Moreover, 47.0% of all resident physicians had no experience in the care of patients with COVID-19. The well-experienced group accounted for only 7.9% of the total participants. A positive association was found between the number of caring patients with COVID-19 and burnout (prevalence ratio 1.25; 95% CI 1.02 to 1.53). Moreover, the shortage of personal protective equipment was identified as a major contributor to burnout (prevalence ratio 1.60; 95% CI 1.36 to 1.88). Conclusions Resident physicians who experienced more care of patients with COVID-19 had slightly greater burnout prevalence than those who did not. Approximately half of resident physicians did not participate in the care of patients with COVID-19, which posed a challenge from an educational perspective.

    DOI: 10.1136/bmjopen-2022-066348

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KAKENHI (Grants-in-Aid for Scientific Research) 2

  1. A study for implementing safety measures with patient engagement

    Grant number:24K20171  2024.4 - 2027.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Early-Career Scientists

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    Authorship:Principal investigator 

    Grant amount:\4680000 ( Direct Cost: \3600000 、 Indirect Cost:\1080000 )

  2. 医学生関連インシデントの実態把握と仮想体験を用いた患者安全教育ツール開発の研究

    Grant number:23K19859  2023.8 - 2025.3

    科学研究費助成事業  研究活動スタート支援

    栗原 健

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    Authorship:Principal investigator 

    Grant amount:\2600000 ( Direct Cost: \2000000 、 Indirect Cost:\600000 )

    患者安全インシデントへの対策として、医学生や研修医等の初学者への患者安全に関して焦点をあて、教育することの重要性が指摘されている。本邦では、医学生関連インシデントの実態が明らかになっていない状況にある。
    今後医学生が行える診療範囲が拡大傾向となり、医学生の臨床実習への参画推進に伴い、医学生の実習中のインシデント頻度も上がることが予想され、知識だけではない現場に即した患者安全教育の重要性が増している。そのため本研究では医学生関連インシデントの実態把握と、医学生教育ツールの作成を実施する。