View clinical trials related to Polypectomy.
Filter by:Colon cancer is internationally the third cause of deaths from a malignant disease. Screening colonoscopy in adults >45 years of age aims at the early diagnosis and treatment colon polyps that are precancerous lesions. Endoscopic polyp removal (polypectomy) can be done with various techniques depending on the size, morphology, location of the polyp etc. According to updated guidelines, non-pedunculated polyps of small size are treated with a cold snare in air dilated intestinal lumen (conventional cold snare polypectomy - CCSP).In recent years, several studies have described the benefits of water aided colonoscopy, as well as safety and efficacy of underwater polypectomy in large colon polyps. However, there is not enough data on small polyps which are the most commonly diagnosed.This is a prospective randomized double-blind clinical trial to compare the safety and efficacy of CCSP to underwater cold snare polypectomy (UCSP)for non-pedunculated polyps of size of 5-10 mm. A total of 398 polyps will be randomized and randomization will be performed via random numbers method of Microsoft Excel 2016. Primary outcome of this study is to determine muscularis mucosa resection rate. Secondary outcomes are the depth and percentage of R0 excisions and possible complications. The investigators expect UCSP to ensure a higher muscularis mucosa resection rate and they attempt to examine the resection depth in the submucosal layer.These results will provide useful data for the development of guidelines in polypectomy techniques for non-pedunculated polyps 5-10mm.
Colonoscopy has been shown to reduce the incidence and mortality of colorectal cancer, through the recognition and removal of pre-cancerous lesions, which in most cases evolve with a sequence that goes through formation of high-grade dysplasia (HGD). The probability of HGD increases with the increase of the lesion of the polyp itself. Lesions> 2 cm are present in 1% of colonoscopy screening. The resection of these lesions presents a greater technical difficulty and consequently a decrease in the efficiency. The rate of incomplete resection reported in the literature reaches 10% while that of recurrence / residual adenoma 16.4 / 31.7%. The aim of the study SCALP is to evaluate the incidence of complications, efficacy and cost of endoscopic resection of colic lesions> 2cm in a setting of clinical practice in an unselected population
Interval colon cancers are an important clinical issue. A recent paper from Pohl et al focused on non-pedunculated polyps of 5-20 mm, evaluating non complete polypectomy revealing that 10% of these polyps were not completely resected. This fact was attributed to size and histology. In this study the investigators want to evaluate the radical resection of non-pedunculated polyps of 5-20 mm by performing biopsies on the margins immediately after polypectomy, to establish if the use of Narrow Band Imaging (NBI) could be useful in the definition of the margins of the lesion before polypectomy.
- Cold forceps polypectomy and hot biopsy forceps electrocauterization (HBF) are still widely used methods for endoscopic resection of diminutive colorectal polyps (DCPs)(polyps smaller than 5 mm). Jumbo forceps may be more effective in the removal of DCPs because of their larger size. - This was a prospective study of consecutive patients undergoing colonoscopy and found to have at least one diminutive polyp. One experienced endoscopist removed DCPs using either jumbo or hot biopsy forceps. - Aim was to evaluate the histological quality and adequacy of the DCPs resected using jumbo forceps in comparison with HBF.
A randomized trial aimed at determining whether or not hemoclips are effective in preventing post-polypectomy bleeds on polyps that are 10mm in size or greater.