Publications by authors named "Hirose R"

Accidental bending of the snare sheath occasionally occurs during cold snare polypectomy (CSP). We aimed to demonstrate whether snare bending reduces resection ability and, if it does, what causes this reduction. Using currently available CSP snares and prototype snares, we investigated changes in the resection ability of bent snares as well as the stiffness of their sheaths and wire spindles.

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Objectives: A novel self-assembling peptide gel (SAPG) was recently developed for hemostasis during endoscopic resection (ER) as an alternative for electrocoagulation and clip placement. Therefore, this exploratory study aimed to evaluate the hemostatic effect of SAPG on bleeding during ER of the duodenum.

Methods: Patients with superficial duodenal epithelial tumors who underwent endoscopic submucosal dissection (ESD) or cold-snare polypectomy (CSP) between June 2022 and October 2023 were enrolled in the study.

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Allergic conjunctivitis (AC) is characterized by inflammatory responses in the conjunctiva and is often complicated by atopic dermatitis and mechanical irritation. Vernal keratoconjunctivitis (VKC), a severe subtype of AC, presents unique challenges in its diagnosis and management, particularly in pediatric patients. This case report describes an eight-year-old girl with VKC who exhibited poor adherence to a prescribed regimen of 0.

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Objectives: Colorectal endoscopic submucosal dissection (ESD) for large tumors is spreading worldwide. Gastric cancer (GC) sometimes occurs after colorectal ESD. However, its status including frequency and risk factors have not been examined well.

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With the emergence of immune checkpoint inhibitors(ICIs)in recent years, the treatment outcomes for unresectable recurrent esophageal cancer have improved markedly. In 5-FU+cisplatin(FP)first-line therapy, 5-FU administration takes 5 days and generally requires hospitalization. However, frequent hospitalization for treatment is a crucial issue that must be resolved in terms of time investment and optimal use of hospital resources.

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It has been reported that Graves' disease (GD) sometimes improves spontaneously during pregnancy, although exacerbation of GD during postpartum period or relapse of hyperthyroidism caused by GD might occur. This study aimed to investigate the incidence of postpartum diagnosis of thyroid eye disease (TED) in relation to thyroid dysfunction. This retrospective cross-sectional study enrolled 11,104 deliveries from the patients with GD between January 2004 and August 2022.

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Article Synopsis
  • Balloon-assisted enteroscopy (BAE) is an invasive procedure with risks like pain and perforation, but using lubricants can help reduce these risks.
  • A study developed a model using human small intestines to measure dynamic friction coefficients (DFC) and find the ideal viscosities for low-friction lubricants.
  • The results indicate that the viscosity of lubricants (0.20-0.32 Pa·s for overtube and 0.35-0.58 Pa·s for endoscopic shaft) significantly reduces DFC, suggesting that appropriate lubricants can make BAE less invasive.
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  • The study evaluated the effectiveness of a 30-second additional observation using either linked color imaging (LCI) or narrow band imaging (NBI) for detecting adenomas in the right-sided colon, finding both methods improve detection rates.
  • Researchers analyzed data from over 2,000 cases, comparing the performance of LCI and NBI after initial white light imaging.
  • Results showed no significant difference in adenoma detection between the two imaging techniques, but both significantly enhanced the adenoma detection rate (ADR) in the right colon.
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Background: In primary aldosteronism (PA), the biochemical outcomes of the Primary Aldosteronism Surgical Outcome study are used to assess aldosterone hypersecretion 6-12 months after surgery. However, few studies have investigated whether the outcomes can be predicted in the early postoperative period. In this retrospective study, we evaluated whether the adrenocorticotropin stimulation test (AST) and oral salt loading test (OST) performed immediately after surgery could predict biochemical outcomes 1 year after surgery.

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Background: The MANTIS Closure Device (MCD; Boston Scientific, Marlborough, Massachusetts, USA) is a reopenable clip with a sharp claw used for closure after endoscopic submucosal dissection (ESD). We evaluated the effectiveness of the MCD for fast and complete closure after colorectal ESD.

Methods: Cases involving closure with the MCD after ESD of 20-60-mm colorectal lesions between April 2023 and January 2024 were reviewed.

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Objectives: Pharyngeal follicles similar to those seen in influenza have been observed in patients with coronavirus disease 2019 (COVID-19), suggesting their potential as early-stage diagnostic markers. In this study, we examined the diagnostic potential of pharyngeal follicles for COVID-19, particularly the Omicron variant and its subtypes, to obtain basic data for AI-based diagnostic imaging tools.

Methods: A cross-sectional study was conducted from July 21, 2022, to March 31, 2023, at the Tokyo Shinagawa Hospital's fever clinic.

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A 37-year-old, never-smoker, pregnant woman diagnosed with Graves' disease who had stable thyroid eye disease (TED) before pregnancy presented with aggravated proptosis and eyelid swelling at 13 weeks of pregnancy. Despite the administration of local triamcinolone and 3 cycles of corticosteroid pulse therapy from 25 to 28 weeks, the patient's visual acuity decline necessitated postpartum orbital decompression surgery. Although TSH receptor antibody (TRAb) levels decreased during the mid- to late term of pregnancy, the TED worsened.

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For patients with end-stage heart disease and borderline hemodynamics, high human leukocyte antigen allosensitization presents a barrier to heart transplantation in a timely manner. Conventional desensitization protocols are inadequate in this context due to time constraints and for the most highly reactive immunologically. We previously reported performing heart after liver transplant with domino liver transplant on a single patient without liver disease.

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Objective: There are few reports of subacute thyroiditis (SAT) during pregnancy. This study aimed to clarify the clinical characteristics of SAT in pregnant patients.

Methods And Results: Seven patients diagnosed with SAT during pregnancy at our institution from January 2004 to December 2021 were identified, and their clinical findings were retrospectively examined.

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Background: Pancreatic cancer is the third leading cause of cancer-related death in the United States, with surgical resection being the only option for long-term survival. The ability to manage vascular involvement has expanded the pool of patients who are able to undergo resection with curative intent. However, not all vascular involvements can be detected preoperatively.

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Article Synopsis
  • The study systematically reviewed and analyzed various image-enhanced endoscopy techniques (like BLI, linked color imaging, and NBI) to evaluate their effectiveness in detecting gastric cancer compared to standard white-light imaging.
  • Sixteen studies were included in the analysis, revealing that linked color imaging significantly improved gastric cancer detection rates, while magnifying NBI and BLI showed high sensitivity and specificity.
  • The findings indicate that image-enhanced endoscopy methods, particularly linked color imaging and magnifying NBI/BLI, perform better than white-light imaging for gastric cancer diagnostics.
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  • The study aims to enhance the detection of non-polypoid colorectal polyps using artificial intelligence (AI) powered by blue laser imaging (BLI) and linked color imaging (LCI), as previous methods with white light imaging (WLI) showed insufficient results and high false positive rates.
  • Researchers developed three AI models finetuned with specific learning sets (LS) composed of various WLI, BLI, and LCI images, and tested their accuracy against videos containing small lesions.
  • Results indicated that the AI using LCI showed the highest sensitivity (83%) and the lowest false positive rate (6.5%) compared to other AI models and human trainees, demonstrating its effectiveness for detecting
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Background: Nonepisodic angioedema with eosinophilia (NEAE) is a condition marked by angioedema and significant eosinophilia and often linked with atopic dermatitis. It predominantly affects young Asian women and occurs more frequently in the autumn and winter. Despite over 100 reported cases, its etiology and pathogenesis remain unclear.

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Introduction: Scissor-type knives are spreading as safe devises in endoscopic submucosal dissection (ESD). We evaluated the efficacy of two kinds of scissor-type knives (Clutch Cutter: CC, Fujifilm Co. and SB Knife Jr2: SB, SB-KAWASUMI Laboratories.

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Background And Aim: There are no previous studies in which computer-aided diagnosis (CAD) diagnosed colorectal cancer (CRC) subtypes correctly. In this study, we developed an original CAD for the diagnosis of CRC subtypes.

Methods: Pretraining for the CAD based on ResNet was performed using ImageNet and five open histopathological pretraining image datasets (HiPreD) containing 3 million images.

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Objective: To determine the prophylactic effect of hydrocolloid dressings on hypertrophic scarring in post-cesarean section wounds.

Methods: Patients who underwent cesarean section (C/S) at the authors' hospital and provided informed consent to participate were randomly assigned to the intervention and control groups. The intervention group commenced applying hydrocolloid dressings to the wound on postoperative day 7 or 8 and continued with weekly dressing changes for 6 months.

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Objectives: Diagnostic ability of sessile serrated lesions (SSL) and SSL with dysplasia (SSLD) using blue laser/light imaging (BLI) has not been well examined. We analyzed the diagnostic accuracy of BLI for SSL and SSLD using several endoscopic findings compared to those of narrow band imaging (NBI).

Materials And Methods: This was a subgroup analysis of prospective studies.

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Background: In 2023 alone, it's estimated that over 64,000 patients will be diagnosed with PDAC and more than 50,000 patients will die of the disease. Current guidelines recommend neoadjuvant therapy for patients with borderline resectable and locally advanced PDAC, and data is emerging on its role in resectable disease. Neoadjuvant chemotherapy may increase the number of patients able to receive complete chemotherapy regimens, increase the rate of microscopically tumor-free resection (R0) margin, and aide in identifying unfavorable tumor biology.

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We developed a novel HPLC device where the phase-separation multiphase flow worked as the eluent in the separation column by using a water/acetonitrile/ethyl acetate triple mixed solution as a dual-phase-separation solution. Dual-phase-separation solutions form a phase-separation multiphase flow in a microscopic space. The new separation mechanism in the HPLC is called phase-separation mode.

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