View clinical trials related to Colonic Polyps.
Filter by:The overall objective of this study is to obtain data to evaluate whether high-resolution imaging of the colon can assist clinicians in detecting dysplastic (precancerous) and neoplastic areas. This is a pilot study of a novel technology, a miniaturized microscope device which can be used during standard endoscopy to image the gastrointestinal epithelium. Theoretically, by visualizing superficial mucosal changes at a high-resolution and magnification, the investigators will be able to obtain optical images that can be used to guide endoscopic biopsy and polypectomy. This may foster the selective targeting of dysplasia/neoplasia, thereby improving diagnostic accuracy.
Polyps found during screening colonoscopy have to be removed or at least biopsied. Attempts to save costs include endoscopic assessment of polyps with regards to differential diagnoses between adenomas (which have to be removed) and hyperplastic polyps (could be left in place or removed and not examined histologically). Such a concept would only be feasible if endoscopy can make the differential diagnosis with high accuracy. Such high accuracy rates - between 80% and 95% - have been reported from reference centers with specific scientific interest. The investigators want to test whether these results a) can be reproduced in the private practice setting performing large-volume screening colonoscopies and b) whether latest generation endoscopes provide benefit in terms of better accuracy.
Hypotheses 1. Loading the sigmoid colon with warm water and warm water irrigation for dealing with spasm (Study Treatment) will significantly reduce the proportion of patients complaining of abdominal discomfort compared with no water loading and waiting for spasms to subside (Control Treatment). The median discomfort score reported by the patients will be significantly lower in the group receiving the Study Treatment than the group receiving Control Treatment. Hypothesis 2. Exploratory hypothesis: There are differences in secondary outcome variables when patients managed by the Study and Control Treatments are compared. Co-variables affect the primary and secondary outcome variables.
Asses the clinical performance of dual-energy CTC for the detection of larger polyps 1 cm or larger without cathartic preparation.
This study was designed to demonstrate that AQUAVAN® is effective in providing adequate sedation in elderly patients undergoing colonoscopy as well as to assess the safety profile of AQUAVAN versus that of midazolam. Prior to the procedure, patients received fentanyl citrate for pain management followed five minutes later by AQUAVAN® Injection for sedation. Throughout the procedure, study personnel assessed the patient's vital signs and depth of sedation. After the procedure, the patient, physician, and an evaluator were asked to complete satisfaction surveys.