3,895 results match your criteria: "The University of Tokyo Hospital[Affiliation]"

Introduction Lymphocele is a typical complication of pelvic lymph node dissection (PLND) in robot-assisted radical prostatectomy (RARP). This study aimed to compare postoperative lymphatic leakage between the polymer ligation clip and vessel sealer, and evaluated the costs associated with the former. Methods The study enrolled patients who underwent RARP with PLND at our institution between April 2018 and March 2023 and were treated with a vessel sealer (LigaSure Blunt Tip 44 NC; Medtronic, Dublin, Ireland) until September 2021, and Hem-o-lok polymer ligation clips(Teleflex, Wayne, PA, USA) thereafter.

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Skin cancer is one of the most common cancers worldwide. Some risk factors including sun exposure and MC1R variants are recognized; however, the identification of additional genetic factors is essential for the development of novel therapeutic strategies. Here, we conducted a proteome-wide Mendelian randomization (MR) using plasma protein quantitative trait loci (pQTLs) from a published study and the UK Biobank genome-wide association study (GWAS) of skin cancers.

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Objectives: The study aimed to develop a machine learning (ML) model to predict early postdischarge falls in older adults using data that are easy to collect in acute care hospitals. This may reduce the burden imposed by complex measures on patients and health care staff.

Design: This prospective multicenter study included patients admitted to and discharged from geriatric wards at 3 university hospitals and 1 national medical center in Japan between October 2019 and July 2023.

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Introduction: Cleft lip and cleft palate are congenital disorders resulting from abnormal facial development. Current treatments require multiple surgeries, which have risks of scar formation and facial deformities. Recently, fetal treatments utilizing "scarless healing" have gained attention, as early intervention shows potential to suppress scarring.

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Mammalian skin appendages, such as hair follicles and sweat glands, are essential for both esthetic and functional purposes. Conditions such as burns and ulcers can lead to dysfunction or loss of skin appendages and result in hair loss and dry skin, posing challenges in their regeneration. Existing animal models are insufficient for studying acquired dysfunction of skin appendages without underlying genetic causes.

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The aim of this study is to develop a fine-tuned large language model that classifies interventional radiology reports into technique categories and to compare its performance with readers. This retrospective study included 3198 patients (1758 males and 1440 females; age, 62.8 ± 16.

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Aging and cell expansion enhance microRNA diversity in small extracellular vesicles produced from human adipose-derived stem cells.

Cytotechnology

February 2025

Orthopaedic Surgery, Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655 Japan.

Unlabelled: Adipose-derived stem cells (ASCs) and their small extracellular vesicles (sEVs) hold significant potential for regenerative medicine due to their tissue repair capabilities. The microRNA (miRNA) content in sEVs varies depending on ASC status; however, the effects of aging and cell passage on miRNA profiles remain unclear. In this study, we examined the effects of donor age and cell expansion on ASC characteristics and transcriptome using ASCs obtained from three young and three old donors.

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Importance: Chronic kidney disease (CKD) is a global health priority affecting almost 1 billion people. New therapeutic options and clinical trial innovations such as adaptive platform trials provide an opportunity to efficiently test combination therapies.

Objective: To describe the design and baseline results of the Global Kidney Patient Trials Network (GKPTN) and the design and structure of the global adaptive platform clinical trial Chronic Kidney Disease Adaptive Platform Trial Investigating Various Agents for Therapeutic Effect (CAPTIVATE) to find new therapeutic options and treatments for people with kidney disease.

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Comparative Analysis of Characteristics of Lower- and Mid-Cervical Spine Injuries in the Elderly.

Spine Surg Relat Res

November 2024

Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan.

Article Synopsis
  • * Out of 451 patients over 65 years with cervical fractures, 69% had mid-cervical injuries while 31% had lower-cervical injuries, with lower-cervical injuries being linked to more high-energy trauma cases.
  • * Although lower-cervical injuries resulted in fewer muscle weaknesses compared to mid-cervical injuries, many patients still experienced neurological deficits and similar overall complication rates after treatment, such as respiratory issues but no significant differences in mortality or mobility outcomes.
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Introduction: Preoperative estimations of blood loss are important when planning surgery for cervical spine injuries in older adults. The association between ankylosis and blood loss in perioperative management is of particular interest. This multicenter database review aimed to evaluate the impact of ankylosis on surgical blood loss volume in elderly patients with cervical spine injury.

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Objectives: Clostridium species are ubiquitous in nature and commonly cause infections, including bacteremia. C. perfringens is often the causative species, while the epidemiology of other clostridial species remains unclear.

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Background: Fetal monitoring in low-resource settings is often inadequate. A mobile cardiotocograph fetal monitoring device is a digital innovation that could ensure the safety of pregnant women at high risk and their fetuses through early detection and management of fetal distress. Research is scarce on factors that affect the implementation of fetal heart monitoring using the mobile cardiotocograph device in low-resource settings, including Tanzania.

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Cone Beam Computed Tomography Image-Quality Improvement Using "One-Shot" Super-resolution.

J Imaging Inform Med

December 2024

Graduate School of Medical Care and Technology, Teikyo University, 2-11-1 Kaga, Itabashi-Ku, Tokyo, 173-8605, Japan.

Article Synopsis
  • - Cone beam computed tomography (CBCT) images are useful for visualizing internal organs but often lack the image quality of treatment planning CT images, presenting a significant drawback for medical applications.
  • - A new super-resolution model called "one-shot" super-resolution (OSSR) effectively enhances CBCT image quality using minimal training data by leveraging just the target CBCT image and its matching treatment planning CT image.
  • - In tests involving pelvic images from 30 prostate cancer patients, the OSSR model showed substantial improvements in image quality metrics (RMSE, PSNR, SSIM, NMI) compared to standard methods, achieving performance similar to more data-intensive models like CycleGAN.
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Postural stability in patients with vestibular migraine and probable vestibular migraine in the absence of acute vestibular symptoms.

Am J Otolaryngol

November 2024

Department of Otolaryngology and Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8655, Japan. Electronic address:

Article Synopsis
  • The study aimed to assess postural stability in patients with vestibular migraine (VM) and probable vestibular migraine (PVM) without acute symptoms by analyzing their performance on foam posturography tests.
  • A total of 30 VM patients, 25 PVM patients, and 194 healthy controls were evaluated, with factors such as age, sex, and diagnosis being analyzed for their impact on postural stability.
  • Results indicated that both VM and PVM patients exhibited greater postural instability compared to healthy controls; however, there were no significant stability differences between the two patient groups.
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Development of a code system for allergens and its integration into the HL7 FHIR AllergyIntolerance resource.

Int J Med Inform

November 2024

Department of Healthcare Information Management, The University of Tokyo Hospital, Tokyo, Japan; Department of Biomedical Informatics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.

Article Synopsis
  • The study developed a new Japanese Food and non-food/allergen code system (JFAGY) to improve safety and information sharing in medical settings, addressing gaps in current allergen terminology in Japan.
  • The JFAGY includes a total of 1,123 food and 607 non-food/non-medication allergens, with a metadata structure allowing for hierarchical categorization.
  • Analysis of electronic health records showed that 62.9% of food allergens had unique codes, indicating good coverage of the new system, though a significant percentage remained unmapped.
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Article Synopsis
  • * The research included 707 adults and found that the 5-year progression-free survival (PFS) rate was 18.8%, with overall survival at 22.0%, and identified key factors affecting outcomes, such as male sex, poor performance status, karyotype risk, and blasts in the blood.
  • * These findings provide valuable insights into the prognosis and treatment strategies for R/R AML, influencing future
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Article Synopsis
  • Gastric cancer is a leading cause of cancer-related deaths and the study focuses on improving personalized treatment approaches through genomic data analysis.* -
  • Researchers analyzed genetic information from 65 advanced gastric cancer patients to develop a machine learning model that predicts chemotherapy outcomes with 70-80% accuracy.* -
  • The study highlights tumor-associated neutrophils as significant predictors of treatment success, suggesting they could be used as biomarkers for better tailored therapies.*
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  • Progressive systemic right ventricle (sRV) dysfunction poses treatment challenges in adult congenital heart disease, with current guidelines lacking specific heart failure medication recommendations for sRV.
  • A study of 17 adult patients on ACE-I/ARB analyzed the impact of tricuspid regurgitation (TR) on sRV ejection fraction (sRVEF) deterioration over an average of 68.7 months, finding that mild TR was linked to improvements in sRVEF.
  • The findings suggest that assessing TR severity may help predict outcomes for sRV patients on ACE-I/ARB, highlighting the need for further research through randomized controlled trials focusing on TR in these patients.
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Platelet dysfunction in heatstroke-induced coagulopathy: A retrospective observational study.

J Crit Care

February 2025

Department of Emergency and Critical Care Medicine, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan; Department of Clinical Engineering, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan. Electronic address:

Article Synopsis
  • - The study investigates how platelet function, measured through thromboelastography (TEG), relates to the severity of disseminated intravascular coagulation (DIC) in patients suffering from heatstroke at an emergency department. - Researchers analyzed data from 31 heatstroke patients in the ICU, finding a strong correlation between platelet function and DIC severity, indicating that impaired platelet function is linked to worse DIC outcomes. - The findings suggest that evaluating platelet function with TEG can improve our understanding of heatstroke complications, particularly in identifying different subtypes of the condition.
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Introduction: Alzheimer disease (AD)-modifying therapies are approved for treatment of early-symptomatic AD. Autosomal dominant AD (ADAD) provides a unique opportunity to test therapies in presymptomatic individuals.

Methods: Using data from the Dominantly Inherited Alzheimer Network (DIAN), sample sizes for clinical trials were estimated for various cognitive, imaging, and CSF outcomes.

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  • The Japan Society for the Study of Obesity advises aiming for a 3% weight loss over 3-6 months, but the impact of rapid weight loss on body composition is not fully understood.
  • A study focused on obese individuals used a combination of a low-carb diet, exercise, and medication to achieve a 3-5% weight loss, resulting in significant reductions in visceral fat and improvements in various health markers.
  • The results showed that moderate weight loss can effectively reduce harmful fat while preserving lean muscle, leading to better health outcomes like improved blood pressure and glucose levels, although some measures of insulin resistance didn't show significant changes.
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  • AI chatbots, particularly GPT-4 and Grok, were evaluated for their responses to clinical questions about implant-based breast reconstruction guidelines set by the Japan Society of Plastic and Reconstructive Surgery.
  • GPT-4 showed significantly better performance than Grok in accuracy, informativeness, and readability, according to assessments from plastic surgery specialists and fellows.
  • The findings indicate that while GPT-4 may help interpret clinical guidelines, there is still a risk of misinformation, underscoring the need for further research on AI's role in breast reconstruction surgery.
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Article Synopsis
  • The study compares microendoscopic laminectomy (MEL) and open laminectomy in patients with multi-level lumbar spinal canal stenosis (LSCS), focusing on patient outcomes and complications.
  • It involved 882 patients from eight spine centers, analyzing factors like blood loss, operation time, complications, and patient-reported outcomes over a one-year follow-up.
  • Results showed that MEL had lower blood loss and a significantly reduced rate of surgical site infections compared to open laminectomy, with comparable complication rates overall.
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