Ryota Niikura 교수

Patients with colonic diverticular bleeding show high recurrence rates within a short period. Risk factors for recurrence have been identified as the use of NSAIDs or antiplatelet drugs and hypertension.

We read with interest the recent publication by Cheung et al . The authors conclude that proton pump inhibitor (PPI) use is associated with a 2.4-fold increase in the risk of gastric cancer in patients who received Helicobacter pylori eradication therapy.1 This is an important finding given that the safety of long-term PPI use remains unclear. Notably, no significant association between histamine-2 receptor antagonist (H2RA) use and gastric cancer was observed, which suggests a PPI-specific effe

This long-term follow-up study demonstrated that the cumulative incidence of bleeding from diverticulosis was approximately 2% at 5 years and 10% at 10 years, and the overall incidence was 0.46 per 1000 patient-years. Bilateral diverticulosis increased the risk of bleeding.

Noninferiority of the rate of gastric cancer diagnosis by AI was demonstrated but superiority was not demonstrated.

Large number of diverticula, hypertension, and concomitant arteriosclerotic diseases including ischemic heart disease and chronic renal failure are risk factors for diverticular bleeding. This study identifies new information on the risk factors for diverticular bleeding.

High-dose barium impaction therapy was effective in the long-term prevention of recurrent bleeding, and reduced the frequency of rehospitalization and need for blood transfusion and colonoscopic examination. ClinicalTrials.gov Identifier, UMIN 000002832.

Compared with barium enema, only half the number of colonic diverticula can be detected by colonoscopy in the entire colon and even less in the left colon.

Aspirin use may reduce the risk of gastric cancer incidence and death; however, the relationship may be limited to a specific frequency and duration of aspirin use and geographic location.

Local atomic and electronic structures of the Au-adsorbed Ge(001) surface are investigated using scanning tunneling microscopy (STM) and x-ray photoemission spectroscopy (XPS). In the STM image, the top of the one-dimensional chain structure of this surface shows an eightfold arrangement of protrusions in the chain direction. The XPS results indicate an absence of buckled Ge-Ge dimers with dangling bonds on the surface. These are inconsistent with any existing structural models assuming a twofol

Objective Clinically, patients with proton pomp inhibitor (PPI)-resistant gastroesophageal reflux disease (GERD) are very challenging to treat. The aim of this study was to determine the rates of symptom relief and adverse events among PPI-resistant GERD patients that changed their therapy from a PPI to vonoprazan. Methods Patients with severe gastroesophageal reflux symptoms (total GERD-Q score ≥8) without endoscopic findings of mucosal breaks who changed their medication from a PPI to vonopraz

The colorectal cancer mortality of patients who received colonoscopy without colorectal cancer diagnosis decreased significantly compared with that of individuals in the general population. These results were compatible even in patients with right-sided colon cancer.