Atsushi Yamauchi
A5004941332- Gastrointestinal Bleeding Diagnosis and Treatment
- Gastrointestinal disorders and treatments
- Transplantation: Methods and Outcomes
- Gastric Cancer Management and Outcomes
- Organ Transplantation Techniques and Outcomes
- Esophageal and GI Pathology
- Hepatocellular Carcinoma Treatment and Prognosis
- Gastrointestinal Tumor Research and Treatment
- Diverticular Disease and Complications
- Liver Disease Diagnosis and Treatment
- Helicobacter pylori-related gastroenterology studies
- Prostate Cancer Treatment and Research
- Vasculitis and related conditions
- Prostate Cancer Diagnosis and Treatment
- Renal Diseases and Glomerulopathies
- Electrolyte and hormonal disorders
- Colorectal Cancer Screening and Detection
- Pancreatic and Hepatic Oncology Research
- Lung Cancer Diagnosis and Treatment
- Hemodynamic Monitoring and Therapy
- Xenotransplantation and immune response
- Colorectal Cancer Surgical Treatments
- Medical Imaging and Pathology Studies
- Renal and Vascular Pathologies
- Organ and Tissue Transplantation Research
Osaka Rosai Hospital
2008-2025
Kitano Hospital
2010-2024
Kawasaki Medical School
2024
Hyogo Prefectural Awaji Medical Center
2024
RELX Group (Netherlands)
2024
American Society for Gastrointestinal Endoscopy
2022
Ibaraki Prefectural Central Hospital
2001-2021
Nippon Medical School
2012
Catholic University of Korea
2011
Saitama Medical University
2004-2010
Objective To investigate the success rate of cold snare polypectomy (CSP) for complete resection 4–9 mm colorectal adenomatous polyps compared with that hot (HSP). Design A prospective, multicentre, randomised controlled, parallel, non-inferiority trial conducted in 12 Japanese endoscopy units. Endoscopically diagnosed sessile polyps, size, were randomly assigned to CSP or HSP group. After removal polyp using allocated technique, biopsy specimens from margin after obtained. The primary...
INTRODUCTION: The bleeding source of hematochezia is unknown without performing colonoscopy. We sought to identify whether colonoscopy a risk-stratifying tool etiology and predict outcomes presenting symptoms can differentiate the etiologies in patients with hematochezia. METHODS: This multicenter retrospective cohort study conducted at 49 hospitals across Japan analyzed 10,342 admitted for outpatient-onset acute RESULTS: Patients were mostly elderly population, 29.5% had hemodynamic...
Abstract Background Direct and indirect clipping treatments are used worldwide to treat colonic diverticular bleeding (CDB), but their effectiveness has not been examined in multicenter studies with more than 100 cases. Objective We sought determine the short‐ long‐term of direct versus for CDB a nationwide cohort. Methods studied 1041 patients who underwent ( n = 360) or 681) at 49 hospitals across Japan (CODE BLUE‐J Study). Results Multivariate analysis adjusted age, sex, important...
Background The rebleeding risks and outcomes of endoscopic treatment for acute lower gastrointestinal bleeding (ALGIB) may differ depending on the location, type, etiology stigmata recent hemorrhage (SRH) but have yet to be fully investigated. We aimed identify high risk SRH propose an optimal strategy. Methods retrospectively analyzed 2699 ALGIB patients with at 49 hospitals (CODE BLUE-J Study), whom 88.6 % received treatment. Results 30-day rates untreated significantly differed among...
Currently, large, nationwide, long-term follow-up data on acute lower gastrointestinal bleeding (ALGIB) are scarce. We investigated risks of recurrence after hospital discharge for ALGIB using a large multicenter dataset.
The study aimed to identify prognostic factors for patients with acute lower gastrointestinal bleeding and develop a high-accuracy prediction tool. analysis included 8254 cases of hematochezia who were admitted urgently based on the judgment emergency physicians or gastroenterology consultants (from CODE BLUE J-study). Patients randomly assigned derivation cohort validation in 2:1 ratio using random number table. Assuming that present at time admission are involved mortality within 30 days...
Background and AimsWe aimed to determine the optimal timing of colonoscopy factors that benefit patients who undergo early for acute lower GI bleeding.MethodsWe identified 10,342 with hematochezia (CODE BLUE-J study) admitted 49 hospitals in Japan. Of these, 6270 underwent a within 120 hours were included this study. The inverse probability treatment weighting method was used adjust baseline characteristics among (≤24 hours, n = 4133), elective (24-48 1137), late (48-120 1000) colonoscopy....
Background: Endoscopic ligation can be used for bleeding lesions in non-fibrotic tissue; however, only small numbers of patients with non-esophageal variceal upper gastrointestinal hemorrhage have been treated this way. To evaluate the utility technique, we performed procedure to treat not from esophageal varices during emergency endoscopy.
Ligation therapy, including endoscopic detachable snare ligation (EDSL) and band (EBL), has emerged as an treatment for colonic diverticular bleeding (CDB); its comparative effectiveness risk of recurrent remain unclear, however. Our goal was to compare the outcomes EDSL EBL in treating CDB identify factors after therapy.We reviewed data 518 patients with who underwent (n = 77) or 441) a multicenter cohort study named Colonic Diverticular Bleeding Leaders Update Evidence From Multicenter...
Abstract Background and Aim: The mechanisms responsible for impaired regenerative ability after hepatic resection observed in chronic liver disease are not fully understood. We have examined the relationships between an altered expression of cell cycle‐related proteins regenerating partial hepatectomy process fibrotic cirrhotic rats. Methods: performed 70% both control porcine serum‐induced rats, 45% thioacetamide‐induced rats because high mortality associated with hepatectomy. Liver...
Abstract Background The value of endoscopy for acute lower GI bleeding (ALGIB) remains unclear, given few large cohort studies. We aim to provide detailed clinical data ALGIB management and identify patients at risk adverse outcomes based on endoscopic diagnosis. Methods conducted a multicenter, retrospective study, named CODE BLUE J-Study, in 49 hospitals throughout Japan studied 10,342 cases admitted outpatient-onset hematochezia. Results Cases were mostly elderly, with 29.5% hemodynamic...
Stigmata of recent hemorrhage (SRH) directly indicate a need for endoscopic therapy in acute lower gastrointestinal bleeding (LGIB). Colonoscopy would be prioritized patients with highly suspected SRH, but the predictors colonic SRH remain unclear. We aimed to construct predictive model efficient detection using nationwide cohort.We retrospectively analyzed 8360 admitted through hospital emergency departments LGIB CODE BLUE-J Study (49 hospitals throughout Japan). All underwent inpatient...
Abstract Background and Aim While short long attachment caps are available for colonoscopy, it is unclear which type more appropriate stigmata of recent hemorrhage (SRH) identification in acute hematochezia. This study aimed to compare the performance versus hematochezia diagnoses outcomes. Methods We selected 6460 patients who underwent colonoscopy with from 10 342 cases CODE BLUE‐J study. performed propensity score matching (PSM) balance baseline characteristics between cap users. Then,...
Evidence that general anesthesia (GA) reduces the operative time of esophageal endoscopic submucosal dissection (ESD) is currently insufficient. This study aims to evaluate efficacy and safety ESD under GA.A total 227 lesions from 198 consecutive patients with superficial neoplasms treated by at 3 Japanese institutions between April 2011 September 2017 were included in this retrospective study. For ESD, GA deep sedation (DS) used 102 (51.5%, group) 96 (48.5%, DS group), respectively.There no...
The aim of this study was to compare 29 muscle-invasive bladder cancer patients who received neoadjuvant chemotherapy (NAC) followed by immediate robot-assisted radical cystectomy (RARC) with those underwent minimum-incision endoscopic RC (MIE-RC). We retrospectively reviewed the charts 430 consecutive and bilateral pelvic node dissection (PLND) between May 1994 July 2016. Our focused on MIBC had histologically confirmed stage T2-T4aN0M0 urothelial carcinoma NAC prior surgery. Accordingly,...
Background To date, research has not determined the optimal procedure for adjuvant androgen deprivation therapy (ADT) in patients with locally advanced prostate cancer (PCa) treated 6 months neoadjuvant ADT and external‐beam radiation (EBRT). Methods A multicenter, randomized, phase 3 trial enrolled 303 PCa between 2001 2006. Participants were months. Then, 280 whose prostate‐specific antigen levels less than pretreatment 10 ng/mL randomized. All participants 72 Gy of EBRT combination 8...
Abstract Objectives The condition of air bubbles in the large intestine is an influential factor for good quality colonoscopy. However, correlative factors severity during colonoscopy are not established. Therefore, this study aimed to elucidate influencing intestine. Materials and Methods A total 314 examinees who underwent between August September 2022 were enrolled (median age [range], 65 [18–88] years). Air scored using Colon Endoscopic Bubble Scale (CEBuS) clinical associated with CEBuS...
Kidney complications associated with anticancer drug therapy have greatly increased recently. We aimed to investigate the real-world clinical outcomes of therapy-associated renal in Japan using national kidney biopsy database, Renal Biopsy Registry (J-RBR).
Abstract Background We aimed to examine the impact of anemia on risk further deterioration in renal function among elderly and nonelderly patients with chronic kidney disease (CKD). Methods In this retrospective cohort study, we included 1098 predialysis CKD hospitalized for an educational program between January 2010 December 2018. Patients aged < 75 years (657) were considered nonelderly, those ≥ (441) elderly; each category was stratified by hemoglobin level evaluate incidence...