A5042602006- Gastric Cancer Management and Outcomes
- Gallbladder and Bile Duct Disorders
- Metastasis and carcinoma case studies
- Esophageal and GI Pathology
- Pancreatic and Hepatic Oncology Research
- Gastrointestinal Tumor Research and Treatment
- Esophageal Cancer Research and Treatment
- Pediatric Hepatobiliary Diseases and Treatments
- Neuroendocrine Tumor Research Advances
- Colorectal Cancer Screening and Detection
- Gastrointestinal Bleeding Diagnosis and Treatment
- Gastrointestinal disorders and treatments
- Genetic factors in colorectal cancer
- Neuroblastoma Research and Treatments
- Liver physiology and pathology
- Pancreatitis Pathology and Treatment
- Lung Cancer Diagnosis and Treatment
- Biliary and Gastrointestinal Fistulas
- Colorectal and Anal Carcinomas
- Lymphadenopathy Diagnosis and Analysis
- Organ Transplantation Techniques and Outcomes
- Tracheal and airway disorders
- Photodynamic Therapy Research Studies
- Anesthesia and Pain Management
- Gambling Behavior and Treatments
Saitama Medical University
2001-2025
Saitama International Medical Center
2022-2024
The Japanese Society of Gastroenterological Surgery
2023
Hiroshima University Hospital
2023
Iwate Medical University
2023
Hudson Institute
2023
RELX Group (Netherlands)
2022
National Cancer Center Hospital East
2006-2009
National Cancer Center
2005-2008
Hy-Line (United States)
2007
Abstract Background and Aims: Various methods for complete endoscopic resection of rectal carcinoid tumors have been reported; however, the number cases investigated in each study has limited. The aim present was to clarify clinical usefulness a novel technique named submucosal with ligation device (ESMR‐L) large tumors. Patients methods: Between January 1999 March 2005, total 61 patients 63 estimated at 10 mm or less diameter, without atypical features resected by ESMR‐L were recruited this...
Colonoscopy is considered the gold standard for detection of colorectal polyps; however, polyps can be missed with conventional white light (WL) colonoscopy. The aim this pilot study was to evaluate whether a newly developed autofluorescence imaging (AFI) system detect more than WL.A modified back-to-back colonoscopy using AFI and WL conducted 167 patients in right-sided colon including cecum, ascending transverse by single experienced colonoscopist. patient randomized undergo first either...
Abstract Background Endoscopic mucosal resection (EMR) and endoscopic submucosal dissection may result in complications or be unsuitable for tumors that are difficult to treat endoscopically. We investigated the usefulness of a newly developed technique—EMR with an over‐the‐scope clip (EMR‐O)—for difficult‐to‐treat lesions. Method retrospectively examined patients who underwent EMR‐O colorectal between September 2017 January 2024. Patient lesion characteristics, technical success rates, en...
Flat and depressed colorectal neoplastic lesions can be difficult to identify using conventional colonoscopy techniques. Narrow-band imaging (NBI) provides unique views especially of mucosal vascular network helps in visualization neoplasia by improving contrast. The aim this study was assess the feasibility NBI for screening.Forty-seven consecutive patients, who underwent high definition (HDC) screening examinations revealing lesions, were enrolled our prospective study. No biopsies or...
Endoscopic submucosal dissection (ESD) is an alternative to transanal resection (TAR) in treating rectal adenomas, intramucosal cancers, and superficial cancers. The purpose of this study compare the clinical efficacy between ESD TAR for non-invasive tumors.Between January 1998 December 2006, 85 patients with preoperative diagnosis tumors were treated by or TAR. En-bloc resection, local recurrence, complication, procedure time, hospital stay evaluated retrospectively using a...
Background/Aims: Endoscopic ultrasound-guided tissue acquisition (EUS-TA) using Franseen needles is reportedly useful for its high diagnostic yield. This study compared the yield and puncturing ability of EUS-TA 22-gauge cobalt-chromium (CO-Cr) with those stainless-steel in patients solid pancreatic lesions.Methods: Outcomes were between Co-Cr needle (December 2019 to November 2020; group C) (November 2020 May 2022; S).Results: A total 155 (group C, 75; S, 80) eligible. The accuracy was...
An upside-down stomach (UDS) is a relatively rare type of esophageal hiatal hernia; almost the entire prolapses into posterior mediastinum in affected patients [1].
Esophageal squamous cell carcinoma (ESCC) is one of the most common types cancer, and its progression strongly influenced by presence inflammation. Recently, there has been growing interest in host inflammatory response, increasing evidence indicated that neutrophil-to-lymphocyte ratio (NLR), a useful marker systemic inflammation, may be an effective prognostic indicator various malignant diseases. In present study, 260 patients with ESCC were enrolled, including 110 who received...
Abstract Background and study aims Endoscopic resection of duodenal neuroendocrine tumors (DNETs) remains controversial, its indications are still unclear. This aimed to evaluate short-term outcomes a newly developed endoscopic muscularis (EMR) method that utilizes an over-the-scope clip (OTSC), termed EMRO, for treating DNETs. Patients methods In total, 13 consecutive patients with 14 small (≤ 10 mm) DNETs who underwent EMRO from September 2017 March 2020 were retrospectively enrolled. was...
In recent years, the usefulness of endoscopic resection (ER) methods, such as underwater submucosal dissection, has been widely reported [1]. Moreover, recently, from viewpoint securing visual field during endoscopy, gel immersion endoscopy to be useful [2] [3]. Gel and ER are used in challenging procedures owing their buoyancy effects. The pocket creation method is overcome dissection (ESD) difficulties [4]. Red dichromatic imaging, which improves visibility deep blood vessels bleeding...
Abstract Background and Aim Perforation is one of the most important complications endoscopic submucosal dissection (ESD) for early gastric cancer (EGC). Several studies have examined risk factors intraoperative delayed perforations, but were retrospective analyses with small numbers patients. Methods This study represents a secondary analysis Japanese multicenter prospective cohort study. We investigated associated each type perforation using 9015 patients 9975 EGCs undergoing ESD between...
Abstract Objectives Understanding the exact morphology of bile duct opening is important for determining success cannulation. Texture and color enhancement imaging (TXI) has been reported to enhance slight changes in tone structure that are difficult see with white light imaging. This study investigated whether TXI mode1 could improve papillary recognition by trainees inexperienced endoscopic retrograde cholangiopancreatography. Methods We included 31 patients naive papilla Vater at a single...
Abstract Colorectal endoscopic submucosal dissection (ESD) is a difficult procedure, and its introduction to trainees has been debated. Although the criteria for performing colorectal ESD vary among institutions, it often allowed after gaining experience surgeries in animals upper gastrointestinal ESD. This pilot study aimed compare treatment outcomes of performed by using multi-loop traction device (MLTD group) those conventional experts (control group). It also determine whether MLTD can...
Although anal canal squamous cell carcinoma (ACSCC) is quite rare, it can be recognized clearly using iodine staining [1]. Early-stage esophageal (SCC) has recently been diagnosed both narrow-band imaging (NBI) [2] and autofluorescence (AFI) [3]. Here we report on the first case of early-stage ACSCC by NBI AFI treated successfully endoscopic submucosal dissection (ESD).
Accurate diagnosis of benign and malignant lymphadenopathy is important for determining the appropriate treatment prognosis. This study evaluated diagnostic accuracy usefulness endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) with a conventional needle compared to biopsy (EUS-FNB) Franseen diagnosing lymphadenopathy.Patients who underwent EUS-FNA or EUS-FNB mediastinal abdominal between July 2013 August 2020 were enrolled in study. The outcomes patients (July January 2017;...
Objectives This study aimed to evaluate the efficacy and safety of stone extraction in patients who underwent Roux-en-Y gastrectomy using short-type single-balloon enteroscopy (SBE) clarify factors affecting complete initial procedure.Methods The data with endoscopic short SBE between September 2011 January 2022 was analyzed.Results Overall, 85 were scheduled undergo extraction. 77 intended after successful biliary cannulation. success procedure, overall including repeated procedures,...
Lymphadenopathy may be difficult to diagnose using imaging results alone. Endoscopic ultrasound‑guided fine needle aspiration (EUS‑FNA) help and determine the appropriate management of lymphadenopathy. EUS‑FNA has been used as a safe less invasive method for obtaining pathologic specimens from extraluminal lesions endoscopic ultrasound. The present study evaluated usefulness Between July 2013 December 2016, 72 patients undergoing lymphadenopathy that could not diagnosed solely were included....
This study aimed to evaluate the trainees' practice and learning curve in short-type single-balloon enteroscopy (short SBE)-assisted endoscopic retrograde cholangiopancreatography (ERCP) for patients with surgically altered anatomy (SAA) determine how train these trainees.The data of short SBE-assisted ERCP procedures between September 2011 June 2021 were analyzed.Three trainees 180 cases included analysis. Each trainee performed 60 April 2016 2021. The completion rate was 73.9% (95%...
Covered self-expandable metallic stents (CSEMS) may provide palliative drainage for unresectable distal malignant biliary strictures. Laser-cut CSEMS allows easy positioning due to its characteristic of minimal stent shortening. Endoscopic removal is sometimes recommended recurrent obstruction (RBO). However, there are no previous reports endoscopic laser-cut CSEMS. The current study presents data from 6 patients who were placed a strictures, and later was attempted RBO at the present...