Education 【 display / non-display 】

Education 【 display / non-display 】

• 2006

  -

  2010

  Sapporo Medical University   Graduate School of Medicine  

• 1994

  -

  2000

  Sapporo Medical University   医学部   医学科  

Research Experience 【 display / non-display 】

Research Experience 【 display / non-display 】

• 2025.04

  -

  Now

  Sapporo Medical University   医療安全・病院管理学講座   准教授

• 2025.04

  -

  Now

  札幌医科大学附属病院   経営戦略部   副部長

• 2025.01

  -

  2025.03

  Sapporo Medical University   病院管理学   准教授

• 2024.10

  -

  2024.12

  Sapporo Medical University   救急医学講座   准教授

• 2023.04

  -

  2025.03

  札幌医科大学附属病院   経営戦略室   副室長

display all >>

Research Areas 【 display / non-display 】

Research Areas 【 display / non-display 】

• Life sciences   Healthcare management, medical sociology  

Affiliation 【 display / non-display 】

Affiliation 【 display / non-display 】

• Sapporo Medical University   Department of Patient Safety and Hospital Administration   Associate Professor   病院教授  

Papers 【 display / non-display 】

Papers 【 display / non-display 】

• Prediction of the future number of fall-related emergency medical services calls in older individuals.

  Shuji Uemura, Ryuichi Nakayama, Masayuki Koyama, Yukiko Taguchi, Naofumi Bunya, Keigo Sawamoto, Hirofumi Ohnishi, Eichi Narimatsu

  International journal of emergency medicine   17 ( 1 ) 72 - 72  2024.06  [International journal]

  　View Summary

  BACKGROUND: Falls among older individuals contribute significantly to the rise in ambulance transport use. To recognize the importance of future countermeasures, we estimated the projected number and percentage of fall-related emergency medical service (EMS) calls. METHODS: We examined the sex, age group, and location of falls among patients aged ≥ 65 years who contacted emergency services in Sapporo City from 2013 to 2021. Annual fall-related calls per population subgroup were calculated, and trends were analyzed. Four models were used to estimate the future number of fall-related calls from the 2025-2060 projected population: (1) based on the 2022 data, estimates from the 2013-2022 data using (2) Poisson progression, (3) neural network, (4) estimates from the 2013-2019 data using neural network. The number of all EMS calls was also determined using the same method to obtain the ratio of all EMS calls. RESULTS: During 2013-2022, 70,262 fall-related calls were made for those aged ≥ 65 years. The rate was higher indoors among females and outdoor among males in most age groups and generally increased with age. After adjusting for age, the rate increased by year. Future estimates of the number of fall calls are approximately double the number in 2022 in 2040 and three times in 2060, with falls accounting for approximately 11% and 13% of all EMS calls in 2040 and 2060, respectively. CONCLUSION: The number of fall-related EMS calls among older people is expected to increase in the future, and the percentage of EMS calls will also increase; therefore, countermeasures are urgently needed.

  DOI PubMed

• Prehospital advanced airway management and ventilation for out-of-hospital cardiac arrest with prehospital return of spontaneous circulation: a prospective observational cohort study in Japan.

  Ryuichi Nakayama, Naofumi Bunya, Shuji Uemura, Keigo Sawamoto, Eichi Narimatsu

  Prehospital emergency care     1 - 12  2023.09  [International journal]

  　View Summary

  BackgroundThe relationship among advanced airway management (AAM), ventilation, and oxygenation in patients with out-of-hospital cardiac arrest (OHCA) who achieve prehospital return of spontaneous circulation (ROSC) has not been validated. This study was designed to evaluate ventilation and oxygenation for each AAM technique (supraglottic devices [SGA] or endotracheal intubation [ETI]) using arterial blood gas (ABG) results immediately after hospital arrival.MethodsThis observational cohort study, using data from the Japanese Association for Acute Medicine OHCA Registry, included patients with OHCA with prehospital and hospital arrival ROSC between July 1, 2014, and December 31, 2019. The primary outcomes were the partial pressure of carbon dioxide in the arterial blood (PaCO2) and partial pressure of oxygen in the arterial blood (PaO2) in the initial ABG at the hospital for each AAM technique (SGA or ETI) performed by paramedics. The secondary outcome was favorable neurological outcome (cerebral performance category [CPC] 1 or 2) for specific PaCO2 levels, which were defined as good ventilation (PaCO2 ≤45 mmHg) and insufficient ventilation (PaCO2 >45 mmHg).ResultsThis study included 1,527 patients. Regarding AAM, 1,114 and 413 patients were ventilated using SGA and ETI, respectively. The median PaCO2 and PaO2 levels were 74.50 mmHg and 151.35 mmHg in the SGA group, while 66.30 mmHg and 173.50 mmHg in the ETI group. PaCO2 was significantly lower in the ETI group than in the SGA group (12.55 mmHg; 95% CI 15.27 to 8.20, P-value < 0.001), while no significant difference was found in PaO2 by multivariate linear regression analysis. After stabilizing inverse probability of weighting (IPW), the adjusted odds ratio for favorable neurological outcome at 1 month was significant in the good ventilation group compared to the insufficient ventilation cohort (adjusted odds ratio = 2.12, 95%CI: 1.40 to 3.19, P value < 0.001).ConclusionThe study showed that in OHCA patients with prehospital ROSC, the PaCO2 levels in the initial ABG were lower in the group with AAM by ETI than in the SGA group. Furthermore, patients with prehospital ROSC and PaCO2 ≤45 mmHg on arrival had an increased odds of favorable neurological outcome after stabilized IPW adjustment.

  DOI PubMed

• 一般住宅と高齢者施設から救急要請された高齢者転倒患者の比較

  上村 修二, 中山 龍一, 小山 雅之, 原 正浩, 田口 裕紀子, 大西 浩文, 成松 英智

  日本転倒予防学会誌 ( 日本転倒予防学会 )  ( 第10回学術集会 ) 150 - 150  2023.09

• Extension of Selection Time for the Emergency Destination of Patients with a Fever Due to the Coronavirus Disease 2019 Pandemic: A Difference-in-differences Analysis.

  Ryuichi Nakayama, Shuji Uemura, Masayuki Koyama, Masahiro Hara, Naofumi Bunya, Keigo Sawamoto, Hirofumi Ohnishi, Eichi Narimatsu

  Internal medicine (Tokyo, Japan)    2023.06  [Domestic journal]

  　View Summary

  Background During the coronavirus disease 2019 (COVID-19) pandemic period, an extended total activity time (TAT) in emergency cases has been reported, especially in febrile patients. A brief selection time (ST) regarding the transport of patients to designated hospitals is vital to achieving a good outcome. However, to our knowledge, no studies have reported the impact of the COVID-19 pandemic on the ST. We therefore examined the impact of a fever on the ST for the transportation of emergency patients during the COVID-19 pandemic. Method We analyzed emergency medical services (EMS) data in Sapporo between January 2015 and December 2020. The primary outcome was the ST for the emergency destination of patients. The secondary outcomes were the number of inquiries, time from emergency call to arrival at the scene [call-to-scene time (CST)], time from arrival at the hospital to return base [arrival-to-return time (ART)], and TAT. We used a multivariable linear regression model to estimate the difference-in-differences effect. Results A total of 383,917 patients who were transported to the hospital were enrolled within the study period. The mean ST was 5.8 min in 2019 and 7.1 min in 2020. The difference-in-differences analyses showed that the mean ST increased by 2.52 min (p<0.001), the mean ART by 3.10 min (p<0.001), and the mean TAT by 7.27 min (p<0.001) for patients with a fever during the COVID-19 period. Conclusions This study showed that febrile patients had a longer ST, ART, and TAT during the 2020 COVID-19 period. Considering the COVID-19 pandemic and the threat of future pandemics, regional infection control and information-sharing should be conducted to reduce the EMS activity time.

  DOI PubMed

• Influence of work and family environments on burnout among emergency medical technicians.

  Junpei Haruna, Shuji Uemura, Yukiko Taguchi, Saori Muranaka, Sachi Niiyama, Hirotoshi Inamura, Keigo Sawamoto, Hirotoshi Mizuno, Eichi Narimatsu

  Clinical and experimental emergency medicine    2023.02  [International journal]

  　View Summary

  OBJECTIVE: : Burnout among emergency medical technicians is a serious problem affecting delivery of quality emergency medical services. Although the repetitive nature of the job and lower education level requirements for technicians have been reported as risk factors, little is known about the influence of burden of responsibility, degree of supervisor support, and home environment on burnout among emergency medical technicians. This study aimed to test the hypothesis that burden of responsibility, degree of supervisor support, and home environment increase burnout probability. METHODS: : A web-based survey was conducted among emergency medical technicians in Hokkaido, Japan from July 26, 2021 to September 13, 2021. A total of 21 facilities were randomly selected from 42 fire stations. Prevalence of burnout was measured using the Maslach Burnout-Human Services Survey Inventory. Burden of responsibility was measured using a visual analog scale. Occupational background was also measured. Supervisor support was measured using the Brief Job Stress Questionnaire. Family-work negative spillover was measured using the Survey Work-Home Interaction-NijmeGen-Japanese. The cutoff value for burnout syndrome was defined as emotional exhaustion ≥ 27 and/or depersonalization ≥ 10. RESULTS: : A total of 700 survey respondents were included, and 27 surveys with missing data were excluded. The suspected burnout frequency was 25.6%. Covariates were adjusted using multilevel logistic regression model analysis, and low supervisor support (OR,1.421; 95% CI:1.136-1.406, p < .001) and high family-work negative spillover (OR:1.264, 95% CI:1.285-1.571, p < .001) were independent factors that predicted higher probability of burnout. CONCLUSION: : This study indicated that focusing on improvement of supervisor support for emergency medical technicians and creating supportive home environments may assist in reducing burnout frequency.

  DOI PubMed

display all >>

Misc 【 display / non-display 】

Misc 【 display / non-display 】

• ドクターヘリ搬送により良好な転帰を得た離島での心肺停止の一例—Successful use of Doctor helicopter for the transportation of patient who suffered cardiac arrest due to ventricular arrythmia on an Isolated island

  青柳 有沙, 葛西 毅彦, 山岡 歩, 中山 龍一, 坂脇 英志, 坂脇 園子, 武山 佳洋, 上村 修二, 成松 英智

  日本航空医療学会雑誌 = Journal of Japanese Society for Aeromedical Services ( 日本航空医療学会 )  22 ( 1 ) 28 - 32  2021.05

  CiNii

• ICTを用いた新型コロナウイルス感染症宿泊療養者の健康観察システム

  小山 雅之, 谷川 琢海, 福田 潤, 氷見山 清子, 水野 浩利, 上村 修二, 石井 安彦, 大西 浩文

  医療情報学連合大会論文集 ( (一社)日本医療情報学会 )  40回   453 - 454  2020.11

• 北海道胆振東部地震時におけるHOT・HMV救急搬送の実態調査

  小山雅之, 上村修二, 石井安彦, 石井安彦, 樋室伸顕, 齋藤重幸, 大西浩文

  日本疫学会学術総会講演集(Web)   30th  2020

  J-GLOBAL

• 慢性硬膜下血腫を合併していた広範囲熱傷の1例

  越前 栄次朗, 宮田 圭, 喜屋武 玲子, 平山 傑, 上村 修二, 成松 英智, 権田 綾子, 北 愛里紗, 加藤 慎二, 須貝 明日香, 山内 誠, 山下 建, 齋藤 有, 四ツ柳 高敏

  熱傷 ( (一社)日本熱傷学会 )  42 ( 2 ) 100 - 100  2016.06

• 安全なモニタリング 救急現場での脳内酸素飽和度測定による心肺蘇生法の効果検証について

  原 正浩, 長山 英太郎, 印藤 昌智, 菩提寺 浩, 早川 峰司, 硲 光司, 上村 修二, 大西 新介, 鹿野 恒, 松井 俊尚

  日本臨床救急医学会雑誌 ( (一社)日本臨床救急医学会 )  19 ( 2 ) 242 - 242  2016.04

display all >>

Committee Memberships 【 display / non-display 】

Committee Memberships 【 display / non-display 】

• 2024.09

  -

  Now

    札幌市医療体制審議会

• 2020.10

  -

  2024.03

    札幌市新型コロナ感染症対策専門家会議

• 2017.09

  -

  Now

    北海道ＤＭＡＴ等検討ワーキング

• 2014.04

  -

  Now

    北海道救急業務高度化推進協議会ワーキンググループ