Background/Aims: Although colonic diverticular bleeding (CDB) often ceases spontaneously, re-bleeding occurs in about 30%. Bleeding diverticulum can be treated directly by endoscopic hemostasis; however, it is difficult to perform colonoscopy in all cases with limited medical resource and certain risks. The aim of this study was to clarify who should undergo colonoscopy as well as appropriate methods of initial management in CDB patients. Methods: A total of 285 patients who were diagnosed as CDB and underwent colonoscopy from March 2004 to October 2015 were retrospectively analyzed. First, the association between re-bleeding and various factors including patients’ background and initial management were analyzed. Second, the examination conditions that influenced bleeding point identification were analyzed. Results: Of 285 patients, 187 were men and 98 were women. Median age was 75 years, and the median observation period was 17.5 months. Re-bleeding was observed in 79 patients (28%). A history of CDB (OR 2.1, p = 0.0090) and chronic kidney disease (CKD; OR 2.3, p = 0.035) were risk factors, and bleeding point identification (OR 0.20, p = 0.0037) was a preventive factor for re-bleeding. Bleeding point identification significantly reduced approximately 80% of re-bleeding. Furthermore, extravasation on CT (OR 3.7, p = 0.031) and urgent colonoscopy (OR 5.3, p < 0.001) were predictors for identification of bleeding point. Compared to bleeding point identification of 11% in all patients who underwent colonoscopy, identification rate in those who had extravasation on CT and underwent urgent colonoscopy was as high as 70%. Conclusions: Contrast-enhanced CT upon arrival is suggested, and patients with extravasation on CT would be good candidates for urgent colonoscopy, as well as patients who have a history of CDB and CKD.
Background and study aims We developed a new endoscopic closure technique using just conventional endoclips. The feasibility of endoscopic mucosa-submucosa clip closure method was evaluated in this clinical pilot study. Patients and methods This study involved consecutive 25 patients who underwent colorectal endoscopic submucosal dissection. Endoclips were placed at the edge of the mucosal defect. Each arm of the endoclip gripped the mucosa and submucosa, respectively. The direction in which the endoclip grips were placed was parallel to the short axis of the defect. Several endoclips were applied in this way. As a result, the mucosal defect was significantly reduced in size. Additional clips were placed to achieve complete closure. Results Mean size of resected specimen was 31.2 ± 11 mm. The success rate was 96 % (24/25). Mean procedure time was 9.6 ± 4.4 minutes. Mean number of endoclips was 9.3 ± 3.7. No complications were observed in any of the patients after the procedure. Conclusion Endoscopic mucosa-submucosa clip closure method could close mucosal defect of size around 2 – 4 cm completely using just conventional endoclips, and it seems easy, simple and low cost.
Background: Some scoring systems have been introduced to predict the need for performing urgent endoscopy in patients with upper gastrointestinal bleeding (UGIB). However, in an emergency situation, this intervention is insufficient and cannot easily provide the required treatment. Aim: To identify new risk factors that can predict the need for endoscopic intervention (EI) in UGIB patients. Methods: This is a retrospective cross-sectional study. Patients with UGIB admitted from April 2011 to August 2014 were included. The proportion of cases requiring EI and clinical factors (age, gender, antiplatelet/anticoagulant therapy, history of gastro-duodenal ulcer (GDU), systolic blood pressure, heart rate, hemoglobin, mean corpuscular volume, blood urea nitrogen-creatinine ratio (BUN/Cr ratio), prothrombin time-international normalized ratio, and Glasgow-Blatchford Score (GBS) were analyzed using logistic regression models. Result: Of 378 patients who were included in this study, 180 were found to be with GDU. The proportion of cases requiring EI was significantly higher in those with GDU than in other causes except variceal bleeding (53.5 vs. 37.0%, p < 0.01). Multivariate analysis revealed that a history of GDU was an independent risk factor (OR 1.78, 95% CI 1.06–3.00) in addition to BUN/Cr ratio (OR 1.02, 95% CI 1.00–1.03) and GBS (OR 1.19, 95% CI 1.08–1.33). Conclusion: A history of GDU was an independent risk factor for predicting the need for EI in UGIB in addition to BUN/Cr ratio and GBS.
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