Kenji Fujimori

ORCID: 0000-0003-2199-7172
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About
Contact & Profiles
Research Areas
  • Bone health and osteoporosis research
  • Gastric Cancer Management and Outcomes
  • Hip and Femur Fractures
  • Pancreatic and Hepatic Oncology Research
  • Gastrointestinal disorders and treatments
  • Pancreatitis Pathology and Treatment
  • Chronic Disease Management Strategies
  • Gallbladder and Bile Duct Disorders
  • Esophageal and GI Pathology
  • Emergency and Acute Care Studies
  • Gastrointestinal Tumor Research and Treatment
  • Appendicitis Diagnosis and Management
  • Inflammatory Bowel Disease
  • Helicobacter pylori-related gastroenterology studies
  • Bone and Joint Diseases
  • Health Systems, Economic Evaluations, Quality of Life
  • Adrenal Hormones and Disorders
  • Geriatric Care and Nursing Homes
  • Radiopharmaceutical Chemistry and Applications
  • Liver Disease Diagnosis and Treatment
  • Sepsis Diagnosis and Treatment
  • Metastasis and carcinoma case studies
  • Monoclonal and Polyclonal Antibodies Research
  • Clinical practice guidelines implementation
  • Bone health and treatments

Tohoku University
2016-2025

Kindai University
2022-2025

Tokyo University of Pharmacy and Life Sciences
2025

Tokyo Medical and Dental University
2021-2024

Tohoku University Hospital
2024

Tohoku Medical and Pharmaceutical University
2022

Kitasato University
2022

Tohoku Bunka Gakuen University
2022

Regional Health
2011-2014

Hokkaido University Hospital
2007-2014

Abstract Background In Japan, there have been approximately 50 000 deaths from gastric cancer annually for over 40 years with little variation. It has reported that most cancers in Japan are caused by Helicobacter pylori infection. H. eradication therapy was approved patients chronic gastritis the Japanese national health insurance scheme February 2013 an endoscopic diagnosis of is positive . We examined effect on death rate 4 after expansion coverage. Aim conducted epidemiological study and...

10.1111/hel.12415 article EN cc-by-nc-nd Helicobacter 2017-08-03

Although the rate of total hip arthroplasty (THA) is declining among rheumatoid arthritis (RA) patients, complex etiology RA and associated immunomodulatory therapies may contribute to elevated risks postoperative complications. This study aimed evaluate in-hospital complications following THA in patients compared osteoarthritis (OA) using a Japanese nationwide database. retrospective analyzed data from Diagnosis Procedure Combination database, including between December 2011 March 2023. The...

10.1038/s41598-025-94342-1 article EN cc-by-nc-nd Scientific Reports 2025-03-17

The global increase in femoral neck fractures due to aging and osteoporosis is a major clinical challenge. debate on the optimal surgical intervention for remains unresolved. This large-scale study explores among elderly, focusing comparative outcomes of Total Hip Arthroplasty (THA) versus Bipolar Hemiarthroplasty (BHA) Japanese patients. Using National Administrative Diagnosis Procedure Combination (DPC) database, we studied cases fracture from April 2016 March 2023, after propensity score...

10.1016/j.jos.2024.06.011 article EN cc-by-nc-nd Journal of Orthopaedic Science 2024-07-01

Abstract Introduction The efficacy of early surgery in preventing complications among Japanese elderly patients with hip fractures requires further investigation. This study aims to use a comprehensive fracture case database determine whether within the day admission and following reduces incidence mortality during hospitalization patients. Materials methods We retrospectively analyzed National Administrative DPC (Diagnosis Procedure Combination) from April 2016 March 2022. Approximately...

10.1007/s00774-024-01534-2 article EN cc-by Journal of Bone and Mineral Metabolism 2024-07-11

The Japanese government has introduced the casemix system for acute-care hospitals since 2003. applied is DPC (Diagnostic Procedures Combination) that was newly developed in Japan. basic idea of to classify a patient by combination diagnosis and procedures conducted within hospitalization. first key classification diagnosis, then types are considered decide particular group. One main purposes project implement standardized dataset in-patient acute care. keywords transparency accountability....

10.7223/apjdm.5.81 article EN Asian Pacific Journal of Disease Management 2011-01-01

Abstract In February 2013, Japan became the first country in world to cover Helicobacter pylori eradication for chronic gastritis under its National Health Insurance (NHI) system. Now that therapy is covered by NHI, usage has increased dramatically, and gastric cancer deaths have begun decrease. We undertook a detailed epidemiological analysis investigate effects of expanded NHI coverage H. on specific age groups. Numbers were determined referencing data from Ministry Health, Labour Welfare...

10.1111/cas.14586 article EN cc-by-nc Cancer Science 2020-07-26

Polymyxin B hemoperfusion (PMX) aims to treat septic shock by removing endotoxin from the patient's blood. However, relationship between severity of organ damage and survival benefit PMX treatment is not clear.We analyzed efficacy on adult sepsis patients using propensity score matching method Japanese Diagnosis Procedure Combination (DPC) national inpatient database April 2018 March 2020. We stratified into five categories based their baseline Sequential Organ Failure Assessment (SOFA)...

10.1186/s13613-021-00928-z article EN cc-by Annals of Intensive Care 2021-09-26

Importance Peripartum suicide attempt is a major psychiatric complication associated with pregnancy, but the risk factors remain largely uncertain. Objective To identify demographic characteristics and predisposing risks for peripartum attempts postpartum depression. Design, Setting, Participants This cohort study used retrospective data on pregnant women who delivered children between April 1, 2016, March 31, 2021, at 712 hospitals in Japan. The nationwide Diagnosis Procedure Combination...

10.1001/jamanetworkopen.2022.50661 article EN cc-by-nc-nd JAMA Network Open 2023-01-12

Rheumatoid arthritis (RA) is a common autoimmune disorder characterized by chronic inflammation and periarticular bone loss, leading to systemic osteoporosis heightened fracture susceptibility, especially hip fractures among the elderly. This study aimed evaluate outcomes complications associated with in patients RA relative those without RA.

10.1093/mr/roae088 article EN Modern Rheumatology 2024-09-05

Objective: This study aimed to investigate the relationship between hospital volume and clinical outcome in patients with acute pancreatitis, using a Japanese national administrative database. Methods: A total of 7007 pancreatitis were referred to776 hospitals Japan. Patient data corrected according severity allow comparison risk-adjusted in-hospital mortality length stay relation volume. Hospital was categorized based on number cases during period into low-volume (<10 cases), medium-volume...

10.1097/mpa.0b013e31821bd233 article EN Pancreas 2011-10-01

In order to ameliorate the transparency of acute in-patient services in Japan, we have developed Japanese original casemix system, so called DPC (Diagnosis Procedure Combination) after two years’ intensive researches other countries. This system has been used for payment care hospital since 2003. As organized based on already existed Fee-for-service its application smoothly conducted. The introduction ameliorated clinical activities and facilitated managerial innovation both at facility...

10.7223/apjdm.4.55 article EN Asian Pacific Journal of Disease Management 2010-01-01
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