1,623 results match your criteria: "Tokyo Medical Center.[Affiliation]"

Article Synopsis
  • A retrospective multicenter study was conducted in Japan to assess the influence of preoperative neck pain on clinical outcomes after posterior decompression surgery for cervical ossification of the posterior longitudinal ligament (OPLL).
  • The study involved 90 patients followed for at least two years, who were grouped based on the presence or absence of preoperative neck pain, but the two groups showed no significant demographic or outcome differences.
  • Both groups improved post-surgery according to the Japanese orthopedic association (JOA) scores, but lower JOA scores and larger cervical angles in the no preoperative pain group were linked to higher chances of developing postoperative neck pain.
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  • - The Japan Society for Endoscopic Surgery (JSES) conducted its 16th National Survey for 2020 and 2021, highlighting the growth of laparoscopic procedures in Japan since its introduction in 1990.
  • - In 2021, over 290,000 patients underwent various endoscopic surgeries, with the majority being abdominal surgeries; however, COVID-19 negatively affected the number of surgeries performed in 2020.
  • - Despite the pandemic's impact, robot-assisted surgeries gained popularity, and the overall rate of complications remained stable, suggesting that these procedures were performed safely even during challenging times.
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Classification of ossicular fixation based on a computational simulation of ossicular mobility.

Sci Rep

September 2024

Department of Mechanical and Intelligent Systems Engineering, Graduate School of Informatics and Engineering, The University of Electro-Communications, Tokyo, Japan.

Article Synopsis
  • * This study simulated ossicular mobility in 92 cases of ossicular fixation using a finite-element model, and validated findings against measurements from cadaver studies with a new intraoperative system.
  • * The research classified ossicular pathologies into four groups based on mobility, revealing that cases involving combined fixation and otosclerosis required different surgical approaches depending on the degree of fixation.
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In an attempt to develop tests of auditory temporal resolution using gap detection, we conducted computer simulations of Zippy Estimation by Sequential Testing (ZEST), an adaptive Bayesian threshold estimation procedure, for measuring gap detection thresholds. The results showed that the measures of efficiency and precision of ZEST changed with the mean and standard deviation (SD) of the initial probability density function implemented in ZEST. Appropriate combinations of mean and SD values led to efficient ZEST performance; i.

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Providing treatment to patients with cancer, even during the coronavirus disease (COVID-19) pandemic, is essential. In collaboration with infectious disease specialists, we established guidelines for the management of patients with cancer receiving ambulatory treatment during the pandemic on April 8, 2020. This study examined the practice and management of ambulatory chemotherapy under emergency conditions.

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  • This study compared new classification criteria for ANCA-associated vasculitis (AAV) set by ACR/EULAR with an older EMA algorithm.
  • Researchers reviewed 114 newly diagnosed AAV patients at Keio University Hospital from 2012 to 2022, focusing on how they fit into the new and old criteria.
  • Results indicated that the 2022 ACR/EULAR criteria showed high sensitivity for certain types of AAV, but reclassification tendencies were noted, especially among older patients with specific characteristics.
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PDE6A-Associated Retinitis Pigmentosa, Clinical Characteristics, Genetics, and Natural History.

Ophthalmol Retina

August 2024

Moorfields Eye Hospital, London, United Kingdom; UCL Institute of Ophthalmology, University College London, London, United Kingdom. Electronic address:

Purpose: To analyze the genetics, clinical characteristics, and natural history of PDE6A-associated retinitis pigmentosa.

Design: Retrospective, longitudinal, observational cohort study.

Participants: Patients with molecularly confirmed PDE6A-associated retinal dystrophy in a single tertiary referral center.

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Generic medications contain the identical active ingredient in the same concentration as their branded counterparts and are administered in the same manner, aiming to deliver comparable efficacy, dosage, and clinical outcomes. Nevertheless, variations in additives and formulation processes, particularly noticeable in topical medications, can influence factors like ease of use and patient adherence. Therefore, in this study, we aimed to compare the rheological attributes of branded and generic injectable ointments, assessing disparities in formulation performance and their impact on patient care.

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Background: The annual administration of the influenza vaccine is the most effective method for preventing influenza. We have evaluated the effectiveness of the inactivated influenza vaccine in children aged 6 months to 15 years across the seasons from 2013/2014 to 2022/2023. This study aims to investigate the effectiveness of the inactivated influenza vaccine in the 2023/2024 season, the first year following the easing of strict COVID-19 measures, and possibly the last season when only the inactivated vaccine is available on the market.

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  • Age significantly impacts speech discrimination (SpD), with older individuals showing worse SpD scores compared to younger groups.
  • The study analyzed data from over 5,500 ears, highlighting that worse hearing in one ear leads to substantial differences in SpD, especially in cases of moderate or severe hearing impairment.
  • Audiological interventions should be tailored based on a person's age, hearing levels, and differences in hearing between ears to improve SpD outcomes.
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  • Salvage radical prostatectomy (sRARP) is a treatment option for localized prostate cancer patients who have previously undergone radiation therapy, with a notable example reported in 2016 after heavy-ion radiotherapy (HIRT). !* -
  • A case study of a 67-year-old man who received HIRT twice for prostate cancer shows he underwent sRARP in 2019 after facing biochemical recurrence, with no major complications reported. !* -
  • Following sRARP, the patient was put on hormonal therapy due to a diagnosis of biochemical recurrence but currently has an undetectable prostate-specific antigen level, indicating a positive response to treatment. !*
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Impact of neoadjuvant androgen deprivation therapy on toxicity in intensity-modulated radiation therapy for prostate cancer.

J Radiat Res

September 2024

Department of Radiation Oncology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo 135-8550, Japan.

This study aimed to compare toxicities, prostate volume and dosimetry, between patients who underwent intensity-modulated radiation therapy (IMRT) combined with ≥3 months of neoadjuvant androgen deprivation therapy (NADT) and those without NADT for prostate cancer. In total, 449 patients with intermediate- and high-risk prostate cancer received 78 Gy IMRT in 39 fractions, of which 129 were treated without any ADT (non-ADT group) and 320 with NADT ≥3 months (NADT group). Adverse events and dose-volume indices were compared between the two groups retrospectively.

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  • Hypothyroidism is a common late side effect following radiotherapy for head and neck cancer, which the JCOG1008 trial aimed to investigate by analyzing patient data.
  • The trial enrolled 261 patients from 28 institutions between 2012 and 2018 and conducted thyroid function tests to identify factors associated with developing hypothyroidism post-treatment.
  • Results showed that 16.7% of patients developed hypothyroidism within 2 years, with significant factors being the use of weekly cisplatin and lower baseline free thyroxine levels in those undergoing intensity-modulated radiotherapy.
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Background: Cervical injuries are important complications of near-hanging, which is defined as self-injury by hanging if the patient survives at admission. Previous studies have reported that complicated cervical injuries due to near-hanging are uncommon. The primary aim of this study was to evaluate whether cervical imaging can be safely omitted for near-hanging patients who are alert and have no abnormal neck symptoms or signs.

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Accurate interpretation of sequence variants in inherited retinal dystrophy (IRD) is vital given the significant genetic heterogeneity observed in this disorder. To achieve consistent and accurate diagnoses, establishment of standardized guidelines for variant interpretation is essential. The American College of Medical Genetics and Genomics/Association for Molecular Pathology (ACMG/AMP) guidelines for variant interpretation serve as the global "cross-disease" standard for classifying variants in Mendelian hereditary disorders.

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Background: Clinical studies have demonstrated that IL-4, a type 2 cytokine, plays an important role in the pathogenesis of chronic rhinosinusitis and eosinophilic asthma. However, the direct effect of IL-4 on eosinophils remains unclear.

Objective: We aimed to elucidate the inflammatory effects of IL-4 on the functions of human eosinophils.

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Background: The clinical outcome of pulmonary vein isolation (PVI) for persistent atrial fibrillation (AF) is suboptimal. Mapping studies have demonstrated atrial sites outside of the pulmonary veins displaying focal activation patterns during AF. We sought to determine whether adding catheter ablation of focal activation sites to PVI improves clinical outcomes of catheter ablation for persistent AF.

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Background: Perioperative chemotherapy has become the standard of care for locally advanced gastric cancer. Total neoadjuvant therapy (TNT), including both chemotherapy and chemoradiation, is utilized in other gastrointestinal malignancies. We determined survival in a contemporary cohort of gastric cancer patients treated with TNT.

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Introduction: Practical simulation training with proper haptic feedback and the fragility of the human body is required to overcome the long learning curve associated with laparoscopic inguinal hernia repair (LIHR). However, few hernia models accurately reflect the texture and fragility of the human body. Therefore, in this study, we developed a novel model for transabdominal preperitoneal (TAPP) LIHR training and evaluated its validity.

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Background: Although aesthetic treatments can rejuvenate the skin, they often cause specific forms of tissue damage. Unlike wounding, which typically results in fibrotic scar tissue, damage from aesthetic treatments induces a distinct histological rejuvenation. The mechanisms that drive this rejuvenation are not yet fully understood.

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