7 results match your criteria: "Department of Gastroenterology and Endoscopy National Cancer Center Hospital East Chiba Japan.[Affiliation]"
Objectives: Few reports have detailed improvements in the quality of colonoscopies with continuous training post-fellowship completion. We examined the changes in colonoscopy performance among trainees during our advanced endoscopy training program.
Methods: Screening or surveillance colonoscopies performed by 11 trainees who participated in our 3-year advanced endoscopy training program between April 2015 and March 2020 were retrospectively analyzed.
Objectives: For early gastrointestinal lesions, size is an important factor in the selection of treatment. Virtual scale endoscope (VSE) is a newly developed endoscope that can measure size more accurately than visual measurement. This study aimed to investigate whether VSE measurement is accurate for early gastrointestinal lesions of various sizes and morphologies.
View Article and Find Full Text PDFAlcohol consumption, multiple Lugol-voiding lesions, and field cancerization.
DEN Open
April 2024
Department of Therapeutic Oncology Graduate School of Medicine, Kyoto University Kyoto Japan.
Article Synopsis
- The development of multiple squamous cell carcinomas (SCC) in the upper aerodigestive tract is linked to field cancerization, heavily influenced by alcohol consumption and cigarette smoking.
- The Japan Esophageal Cohort study found a significant association between esophageal SCC, head and neck SCC, and genetic factors related to alcohol metabolism, as well as other health risks and precursors like Lugol-voiding lesions.
- Reducing alcohol intake and quitting smoking are strongly advised to lower the risk of further esophageal SCC after treatment, emphasizing lifestyle changes as crucial for prevention and early detection.
Article Synopsis
- * A questionnaire was sent to 16 high-volume Japanese centers to gather information on their initial treatment strategies for EC-ESCC and their approaches to preventing strictures after ESD.
- * Results showed that ESD is being performed more widely than the current guidelines suggest, particularly for larger lesions, highlighting the need for further research into the effectiveness of these expanded treatment indications.
Objective: Photoacoustic (PA) imaging is a novel noninvasive technique that offers high-contrast tomographic imaging with ultrasound-like resolution at depths of centimeters, enabling visualization of deep small vessels. The aim of this pilot study was to survey the characteristics of deep vessel networks in the mucosa of neoplastic gastrointestinal (GI) lesions using PA imaging.
Methods: Specimens of patients who had undergone surgical and endoscopic resection for GI lesions were included in this study.
Owing to its high mortality rate, the prevention of colorectal cancer is of particular importance. The resection of colorectal polyps is reported to drastically reduce colorectal cancer mortality, and examination by endoscopists who had a high adenoma detection rate was found to lower the risk of colorectal cancer, highlighting the importance of identifying lesions. Various devices, imaging techniques, and diagnostic tools aimed at reducing the rate of missed lesions have therefore been developed to improve detection.
View Article and Find Full Text PDFBackground And Aim: Although colorectal laterally spreading tumors (LSTs) can be classified into four subtypes, the histopathological characteristics are known to differ among these subtypes. We therefore performed a logistic regression analysis to determine whether the risk of pathological T1 cancer of large colorectal LSTs can be predicted based on factors such as endoscopic findings in a large group of patients enrolled in a multicenter study in Japan.
Methods: In the main study, we assessed 1236 colorectal adenomas or early cancers that were classified as LSTs measuring 20 mm or more in diameter and treated endoscopically.