Delay of endoscopic submucosal dissection-induced gastric ulcer healing by methotrexate.

We report a case of methotrexate (MTX) delaying the healing of an endoscopic submucosal dissection (ESD)-induced gastric ulcer. The patient, who had been taking MTX for rheumatoid arthritis, underwent ESD for early gastric carcinoma. Despite taking vonoprazan after ESD, abdominal pain and anorexia continued, and the gastric ulcer did not heal after the ESD.

Objective Assessment of the Utility of Chromoendoscopy with a Support Vector Machine.

Purpose: The utility of chromoendoscopy for early gastric cancer (GC) was determined by machine learning using data of color differences.

Methods: Eighteen histopathologically confirmed early GC lesions were examined. We prepared images from white light endoscopy (WL), indigo carmine (Indigo), and acetic acid-indigo carmine chromoendoscopy (AIM).

Lymph node metastasis can be determined by just tumor depth and lymphovascular invasion in early gastric cancer patients after endoscopic submucosal dissection.

Purpose: Endoscopic submucosal dissection (ESD) is a minimally invasive treatment for early gastric cancer (EGC) with negligible risk of lymph node metastasis (LNM). When a patient is determined to have noncurative resection after ESD, additional surgical resection with lymph node dissection is recommended. Previous studies report that LNM is found in about 10% of these patients.

Protective Effect of Daikenchuto on Dextran Sulfate Sodium-Induced Colitis in Mice.

. To investigate the effect of daikenchuto (TJ-100; DKT) for ulcerative colitis (UC) model mouse and assess its anti-inflammatory mechanisms. .

Correlation between obesity and metabolic syndrome-related factors and cecal intubation time during colonoscopy.

Purpose: To investigate which colonoscopy (CS) cases should be presided over by endoscopists in training, using factors including obesity and metabolic syndrome.

Patients And Methods: Items investigated were sex, age, body mass index (BMI), waist circumference, hypertension, diabetes, hyperlipidemia, history of abdominal surgery (excluding colectomy), colon diverticulosis, prescription of antithrombotic agents, and quality of bowel preparation. Expert physicians were defined as those with at least 9 years of endoscopy experience; all other physicians were defined as being in training.

Effectiveness of using low-dose computed tomography to assess patency in gastrointestinal tracts with a patency capsule.

Background/aims: A patency capsule (PC) is used to safely perform capsule endoscopy. When the PC is not excreted within the defined time frame, radiography often cannot localize the PC. Computed tomography (CT) localizes a PC more definitively than radiography.

Beneficial effects of combining computed tomography enteroclysis/enterography with capsule endoscopy for screening tumor lesions in the small intestine.

Aim. To compare the efficacy of using computed tomography enteroclysis/enterography (CTE), capsule endoscopy (CE), and CTE with CE for diagnosing tumor lesions in the small intestine. Materials and Methods.