Publications by authors named "Hitoshi Yoshimura"

Methicillin-resistant (MRSA) is a common pathogen in the intensive care unit (ICU). Active surveillance cultures (ASCs) for MRSA are often performed in ICUs; however, they may not be optimal in ICUs with a low MRSA prevalence. This study aims to determine the risk factors of MRSA carriage in the ICU and develop a clinical predictive model to optimize the screening process.

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Background/aim: Pre-clinical studies have shown that irradiation with electrons at an ultra-high dose-rate (FLASH) spares normal tissue while maintaining tumor control. However, most in vitro experiments with protons have been conducted using a non-clinical irradiation system in normoxia alone. This study evaluated the biological response of non-tumor and tumor cells at different oxygen concentrations irradiated with ultra-high dose-rate protons using a clinical system and compared it with the conventional dose rate (CONV).

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This research aimed to identify materials capable of emitting visible light useful for dose management at ultra-high dose rate (uHDR). Various materials were irradiated with proton beams at a normal dose rate (NDR) and uHDR, and the resulting surface luminescence was captured using a high-sensitivity camera. The luminescence images were compared with the corresponding dose distributions.

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Purpose: In concurrent chemoradiotherapy for advanced esophageal cancer, a 2-phase method consisting of initial irradiation of a wide elective nodal region and boost irradiation of the primary lesion is commonly employed. Although dose escalation to the primary lesion may be required to achieve higher local control rates, the radiation dose to critical organs must not exceed dose constraints. To achieve an optimum balance of dose prescription and dose reduction to surrounding organs, such as the lungs and heart, we compared hybrid dose distributions and investigated the best combination of the following recent irradiation techniques: volumetric modulation arc therapy (VMAT), proton broad-beam irradiation, and intensity-modulated proton beam therapy (IMPT).

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Dental decision-making represents the establishment of a common understanding between the dental professional and the recipient of the intervention, which determines oral healthcare and dental treatment policies. Dental decision-making for persons with dementia can be challenging, and there have been no systematic reviews on this topic. Therefore, this systematic narrative review aimed to identify the current state of dental decision-making in persons with dementia.

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Article Synopsis
  • The study aimed to examine the relationship between pain reports using a visual analogue scale (VAS) and a non-verbal figures-based scale for measuring pain in patients receiving dental anesthetic injections.
  • Participants included 60 healthy Japanese patients aged 20-39, who selected figures (circle, triangle, square, bar, cross) to represent their pain and also rated it on a VAS.
  • Results showed that pain from local dental anesthesia was often associated with a triangle figure and that those choosing a cross reported higher VAS scores, suggesting potential for developing new pain assessment tools for dental practice.
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Introduction: The aim of this systematic review was to collect evidence and recommendations for the applicability of the concept of evidence-based policy making (EBPM) during the coronavirus disease 2019 (COVID-19) pandemic and to discuss the implementation of this concept from a medical science perspective.

Methods: This study was performed according to the guidelines, checklist, and flow diagram of Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020. An electronic literature search was conducted on September 20, 2022 using PubMed, Web of Science, Cochrane Library, and CINAHL databases with the following search terms: "evidence based policy making" and "infectious disease.

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  • Natural disasters can harm oral health by disrupting social functions and public health, but there hasn't been a comprehensive review on this topic until now.
  • This review searched various databases for literature on disasters and oral health, identifying eight relevant studies, mostly centered on the 2011 Great East Japan Earthquake.
  • The findings showed a negative impact on oral health in six studies, but overall evidence was insufficient, highlighting biases in research and a need for more studies to guide dental professionals during disasters.
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  • This scoping review investigates the link between oral health management and mental health, highlighting the lack of prior studies that explore this relationship directly.
  • The review involved a comprehensive literature search, ultimately identifying three randomized controlled trials that varied in interventions and participant demographics.
  • Of the three studies, only one showed a positive outcome when psychosocial support was combined with oral health education, while the other two found no significant effects on mental health.
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  • The COVID-19 pandemic had significant effects on the physical and mental health, socioeconomic status, and community behavior of people globally.
  • A study analyzed the pandemic's impact specifically on the oral health and nutritional status of Japanese older adults undergoing hip or knee surgeries between January 2019 and December 2021.
  • While oral health remained unchanged, the study found a decrease in serum albumin levels in patients 65 and older during the pandemic, indicating a nutritional impact.
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  • Pain is a widespread issue in dentistry, significantly affecting patients' quality of life, and its assessment can be challenging.
  • This study reviews acute pain experienced during various stages of dental procedures, noting that pain can change based on circumstances and personal experiences.
  • The authors emphasize the need for innovative, non-verbal pain assessment scales to accommodate diverse populations, particularly in light of aging demographics and health crises.
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Background: There have been a number of reports suggesting that LDL apheresis, including LDL adsorption and double filtration plasmapheresis (DFPP), can be applied for the treatment of lower extremity peripheral arterial disease (PAD) in hemodialysis patients, whereas there is no definitive recommendation for the use of LDL apheresis.

Study Design: The change of skin perfusion pressure (SPP) during LDL apheresis was measured in every single treatment to determine the effect of LDL adsorption and DFPP on improving blood flow in lower extremity PAD hemodialysis patients. Eleven hemodialysis patients treated with more than two series of LDL apheresis were involved in the study.

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Background: The role of catheter-based imaging in peripheral interventions for lower extremity artery disease (LEAD) has increased with percutaneous interventions. To clarify the relation between intravascular ultrasound (IVUS) information and procedure selection strategy for endovascular treatment therapy (EVT) of the femoropopliteal artery in the real-world clinical settings wherein new endovascular technologies (NETs), including drug-coated balloon (DCB), drug-eluting stent (DES), and covered stent-graft (CS). Our retrospective multicenter analysis examined symptomatic 970 patients treated by EVT for de novo femoropopliteal lesions with IVUS guidance.

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The most common routes of transmission of coronavirus disease 2019 are droplet and contact infections. During dental treatment, several instruments and procedures used generate droplets of saliva and blood, such as during the extraction of an impacted third molar (M3). Surgical masks are often used during tooth extraction.

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  • The literature review aimed to summarize the symptoms and clinical characteristics of temporomandibular joint diseases (TMD) and how they relate to different types of malocclusion.
  • Researchers conducted a PubMed database search and selected 28 relevant articles from an initial pool of 213, categorizing malocclusions into 5 types.
  • The authors proposed a diagnostic tree for clinicians to differentiate TMD linked to malocclusion and emphasized the need for improved understanding and updates to the diagnostic approach as more information becomes available.
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  • Lower third molar extraction is a common dental surgery, and while the procedures are routine, their difficulty and associated complications can vary based on individual patient factors.
  • A study involving 1,826 extractions in Japan found that the overall prevalence of postoperative complications was 10.0%.
  • Key risk factors for complications included older age (over 32 years), radiographic relationships of tooth roots with the mandibular canal, and the depth of tooth impaction, indicating that older patients with deeply impacted teeth may face higher risks after surgery.
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  • The text refers to a correction made to a previously published article.
  • The correction is linked to the article identified by the DOI number 10.1371/journal.pone.0201041.
  • This indicates that there were changes necessary for accuracy or clarity in the original research findings.
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Personal identification using dental evidence is decisive in the case of unidentified bodies because dental features, including decayed, missing and filled teeth, are unique to every individual. This review explored the possibilities and problems associated with personal identification through digital methods by the integration of telecommunications and dentistry, also known as teledentistry. Establishment of a global, objective personal identification method using dental evidence through teledentistry is desirable.

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Objective: Odontogenic maxillary sinusitis (OMS) is a well-recognized disease in otolaryngology and oral and maxillofacial surgery. It is diagnosed comprehensively based on the presence of dental disease and radiographic evaluation. Although the disease involves a combination of dental and otorhinolaryngological features, appropriate criteria have not been well established for prioritizing dental procedures in the initial treatment of OMS.

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Objective: To examine the anatomical characteristics of impacted maxillary third molars to help predict and prevent possible adverse events during extraction.

Methods: This retrospective study enrolled young Japanese patients that were assessed for third molar extraction. Patients with maxillary third molar impaction presenting with no space between the maxillary second molar and the occlusal surface of the maxillary third molar were analysed using computed tomography data.

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Background: Perforation of the lingual plate in the apical region of mandibular third molars will increase the risk of aberration and migration of the root tip and the risk of lingual nerve injury. The aim of this study was to analyze anatomical information, including relationships between the apical region of horizontally impacted mandibular third molars and lingual plates, in young Japanese.

Methods: Japanese patients, with horizontally impacted third molars, who underwent CT examination as a preoperative assessment for mandibular third molar extraction were included, and anatomical characteristics in the apical region of the right mandibular third molar were analyzed, in this study.

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