- Esophageal and GI Pathology
- Gallbladder and Bile Duct Disorders
- Biliary and Gastrointestinal Fistulas
- Pancreatic and Hepatic Oncology Research
- Pediatric Hepatobiliary Diseases and Treatments
- Gastrointestinal disorders and treatments
- Cholangiocarcinoma and Gallbladder Cancer Studies
- Gastric Cancer Management and Outcomes
- Gastrointestinal Tumor Research and Treatment
- Foreign Body Medical Cases
- Pancreatitis Pathology and Treatment
- Colorectal Cancer Surgical Treatments
- Metastasis and carcinoma case studies
- Clinical Nutrition and Gastroenterology
- Diverticular Disease and Complications
- Colorectal Cancer Screening and Detection
- Tracheal and airway disorders
- Dysphagia Assessment and Management
- Radiation Dose and Imaging
- Gastrointestinal Bleeding Diagnosis and Treatment
- Neuroendocrine Tumor Research Advances
- Anorectal Disease Treatments and Outcomes
- Abdominal vascular conditions and treatments
- Colorectal and Anal Carcinomas
- Esophageal Cancer Research and Treatment
Toho University
2015-2024
Toho University Ohashi Medical Center
2015-2024
Toho University Omori Medical Center
2018
Tokyo Medical University
2016
University Hospital and Clinics
2009-2015
University Medical Center
2009-2015
Creative Research Enterprises (United States)
2015
The University of Tokyo
2008-2014
Nagano Municipal Hospital
2009-2012
Gifu University Hospital
2009-2012
Background and Study Aims: Palliative treatment for duodenal stenosis with an enteral stent is effective in enhancing the quality of life patients obstruction. There have been no thorough comparisons placement standard surgical gastrojejunostomy. The present study evaluated outcome gastrojejunostomy palliation caused by pancreaticobiliary malignancies. Patients Methods: Medical records who underwent palliative stenting during past 9 years were retrospectively reviewed, patients’ clinical was...
<b>Background and study aims:</b> Compared with any other location in the gastrointestinal tract, duodenum presents most challenging site for endoscopic resection. The aim of this was to analyze clinical outcomes duodenal resection assess feasibility technique as a therapeutic procedure. <b>Patients methods:</b> A total 113 consecutive patients 121 nonampullary tumors underwent by submucosal dissection (ESD), mucosal (EMR), or polypectomy between January 2000 September 2013. Long-term were...
AIM:To assess the utility and safety of single-operator cholangiopancreatoscopy (SOCPS) using SpyGlass system in widespread clinical application for biliary pancreatic diseases.
Aim This retrospective study estimated the efficacy and safety of WallFlex duodenal stent for malignant gastric outlet obstruction ( GOO ) in J apan. Methods Forty‐two consecutive patients with symptomatic were treated using stents between anuary 2010 O ctober 2010. Results The technical clinical success rates 100% 83.3%, respectively.The median scoring system increased significantly, from 0 to 2, after placement P < 0.01).The survival time was 3.3 months (95% confidence interval CI ),...
Background Usually, uncovered self‐expandable metallic stents ( SEMS ) are used for palliation of malignant gastric outlet obstruction GOO ). A triple‐layered covered is reported to be efficacious, but its performance has not been compared with . The present study the first compare efficacy and safety a versus Patients Methods multicenter randomized was conducted in two tertiary referral centers, 62 eligible patients symptomatic receive n = 31) or 31). primary endpoint patency, secondary...
Background and Aim Colorectal cancer patients often present with large bowel obstruction. Elective placement of a self‐expandable metallic stent ( SEMS ) can relieve obstruction, but be challenging. Previous studies have compared cases by outcomes only, the study investigated successful only to identify factors related prolonged difficult in malignant colonic Methods A post‐hoc analysis multicenter clinical trial conducted between March 2012 October 2013 at 46 facilities across Japan...
Wire-guided cannulation (WGC) is expected to reduce the incidence of post-ERCP pancreatitis (PEP). Our aim was compare PEP and success rate deep biliary using WGC or standard method with contrast injection (STD).A total 172 cases an intact papilla were randomized into STD group (n = 86) 86). First a trainee endoscopist attempted if it not successful, expert tried. When successful within 10 min, other conducted as second attempt. The primary endpoint secondary selective cannulation.In cases,...
This study compared the incidence of delayed bleeding following 2 methods cold snare polypectomy for colorectal polyps in patients taking antithrombotic agents.Patients undergoing ≤10 mm without discontinuation agents were enrolled. was a retrospective prospectively collected cohort based on historical comparison time periods. A traditional used between January 2012 and December 2013 dedicated 2014 2015. Patients' polyps' characteristics, used, number clips adverse events documented from...
Endoscopic nasobiliary drainage (ENBD) is often recommended in preoperative biliary (PBD) for hilar malignant obstruction (MBO), but endoscopic stent (EBS) also used the clinical practice. We conducted this large-scale multicenter study to compare ENBD and EBS setting.A total of 374 cases undergoing PBD including 281 76 MBO 29 centers were retrospectively studied.Extrahepatic cholangiocarcinoma (ECC) accounted 69.8% Bismuth-Corlette classification was III or more 58.8% population....
Diagnostic reference levels (DRLs) are required to optimize medical exposure. However, data on DRLs for interventional fluoroscopic procedures lacking, especially in gastroenterology. This study aimed prospectively collect currently used radiation doses and help establish national fluoroscopy-guided gastrointestinal Japan.This multicentre, prospective, observational collected actual dose from endoscopic retrograde cholangiopancreatography (ERCP), ultrasound (EUS), balloon-assisted...
Background and Study Aims: Vascular dilatation seen on percutaneous transhepatic cholangioscopy (PTCS) is diagnostic of intramural invasive carcinoma the bile duct, but limitations technique, including biopsy, for diagnosis extension duct have not to our knowledge been investigated before. The aims present study were estimate thickness specimens wall taken by assess sensitivity PTCS detecting carcinoma, identify characteristics associated with vascular dilatation.