View clinical trials related to Colonoscopy.
Filter by:Colonoscopy is the gold standard in bowel assessment when there is suspicion of colon and rectum pathology. Bowel cleansing is necessary to ensure an optimal visualization of colonic mucosa, allowing this form of detection and removal of polyps. Nowadays international recommendations have multiple bowel preparations. There are differences among them regarding adherence, tolerance and adverse effects. Lactulose (LAC) is widely used in treating constipation. However, there are some randomized clinical assays using LAC as bowel preparation with excellent results according to bowel preparation and tolerance scales. Adherence to bowel preparation significantly affects the result in the endoscopic study. Safety of polyethylene glycol (PEG) formulations has been validated in several studies, it presents little severe side effects and the advantage of its applicability to patients with several comorbidities (heart, liver and kidney without water deprivation). However, its main disadvantage lies in the need to ingest large amounts of liquid (3-4L), generating intolerance thereto in 15%-45% of patients. Bowel cleansing preparation with PEG is widely used in clinical practice. Considering that according to international studies reporting better tolerance and adherence with LAC; it is suggested to compare the level of bowel preparation, tolerance and adherence between two groups with LAC and PEG.
This project will use a randomized controlled trial to test the effect of using Virtual Reality on pain, anxiety, patients' comfort, and satisfaction during colonoscopy. Patients will use a virtual reality head-mounted display and choose a visualized VR content to watch during colonoscopy. Colonoscopy will be initiated without standard sedatives and narcotics and using virtual reality distraction for as long as the patient would like (for a maximum of 20 minutes). Participants could opt out and/or request standard medications for pain at any time before or during the procedure.
To investigate the degree of the real-time detection and classification system for increasing the adenoma detection rate during colonoscopy.
The aim of this study is to compare the sedative, analgesic effect and hemodynamic changes due to dexmedetomidine and nalbuphine during elective colonoscopy.
During colonoscopy, the insertion of the fiberscope and colon distension required to perform the examination may induce modifications to respiratory mechanics, respiratory effort and breathing pattern. High-flow nasal cannula (HFNC) therapy is a mixed air-oxygen supply system able to deliver heated humidified gas up to 60 L/min of flow rate, with an inspiratory oxygen fraction (FiO2) ranging from 21% to 100%. Increasing evidence supports the use of HFNC in several clinical conditions and settings. When compared to standard therapy (ST), HFNC results in enhanced gas exchange and improved comfort. No studies have yet assessed the benefits of HFNC versus ST during and after colonoscopy. The investigators designed this unblinded randomized controlled trial to assess whether HFNC, compared to ST, improves oxygenation at the end of the procedure (primary endpoint). Additional endpoints were: 1) the lowest peripheral saturation of oxygen (SpO2) and the number of oxygen desaturations; 2) the changes of end-expiratory lung impedance and tidal impedance assessed by Electrical Impedance Tomography (EIT); 3) the effects on diaphragm function assessed by ultrasound (DUS).
The goal of this randomized control study is to determine if the use of standardized coaching language by faculty trainers for teaching colonoscopy is associated with improved colonoscopy performance. The main questions it aims to answer are: - If the use of standardized coaching language is effective in improving colonoscopy training? - If the use of standardized coaching language influences the clarity of instructions by the faculty trainers during colonoscopy teaching Participants will take part in simulated colonoscopy teaching encounter using a virtual reality simulator for 1 hour in 2 different sessions 2 weeks apart. Researchers will compare 2 groups of faculty trainers to to see if the standardized coaching language effects the colonoscopy training quality.
The goal of this observational study is to learn about Influencing factors of intestinal microecological changes before and after colonoscopy. The main questions it aims to answer are: - [question 1] The process of colonoscopic gas insufflation affects the intestinal microecology. Will the use of carbon dioxide gas insufflation can reduce the changes of intestinal microecology after colonoscopy? - [question 2] Can the appendix act as a reservoir for microorganisms to accelerate the recovery of intestinal microecology after colonoscopy？ Participants will be asked to accept colonoscopy for once. Group 1(Control group) will be insufflated air during the colonoscopy; Group 2(Carbon dioxide group) will be insufflated carbon dioxide during the colonoscopy; Group 3(After appendectomy group) will be insufflated air during the colonoscopy. Since Group 1 is comparison group, the investigators will compare Group 2 to see if carbon dioxide gas insufflation can reduce the changes of intestinal microecology after colonoscopy. Meanwhile, compare Group 3 to see if the appendix can accelerate the recovery of intestinal microecology after colonoscopy.
Patients with long lasting colonoscopy are characterized by higher risk of incompletion. Endorail is an accessory for colonoscopy aimed at facilitating progression of the endoscope in the large intestine. Endorail works as a magnetic anchor that is able to guide the colonoscope and to straighten colon curves and loops. The aim of this study is to test the safety and efficacy of Endorail in ensuring that incompletion rate in long-lasting colonoscopies is lower than the 10% threshold. Outpatients of either sex aged between 22-75 years undergoing elective diagnostic or surveillance colonoscopy with caecal intubation time greater than 10 minutes will take part in the study. The primary efficacy endpoint is the percentage minor or equal to 10% of incomplete long-lasting colonoscopies. The primary safety endpoints are the absence of device-related serious adverse events and the evaluation of the equality or reduction of the adverse events rates compared to diagnostic colonoscopies without Endorail.
The goal of this observational study is to explore the correlation between the difficulty of colonoscopy and the patients' personality in the population receiving initial colonoscopy in Peking Union Medical College Hospital. The main question it aims to answer is: Whether the difficulty of colonoscopy is related to any personality score of big five personality dimensions Participants will: 1. Receive routine colonoscopy 2. Fill out the GAD-7 and PHQ-9 scales 3. Fill out the Big Five Personality Questionnaire.
Multicenter, prospective, randomized, checked, open label, with blind evaluation, for compare the intestinal cleansing effectiveness of the regimen full-dose delayed (A) of Clensia vs split regimen (B) of Clensia, in patients undergoing endoscopy.