View clinical trials related to Colonoscopy.
Filter by:Colonoscopy is the gold standard for colorectal screening. The diagnostic accuracy of colonoscopy highly depends on the quality of inspection of the colon during the procedure. To increase detection new polyp detection systems based on artificial intelligence (AI) have been developed. However, these systems still depend on the ability of the endoscopist to adequately visualize the complete colonic mucosa, especially to detect smaller and more subtle lesions, or lesions hidden behind folds in the colon. With this study we want to combine a device to flatten the folds in the colon combined with an artificial intelligence system to further improve the detection rate of lesions during colonoscopy.
This is a prospective equivalence colonoscopy study evaluating whether overall adenoma detection rate (ADR) is a reliable alternate for screening ADR. Overall indication includes screening, surveillance, and diagnostic indications.
In this study,the AI-assisted system（EndoAngel）has the functions of reminding the ileocecal junction, withdrawal time, withdrawal speed, sliding lens, polyps in the field of vision, etc. These functions can improve the colonoscopy performance of novice physicians and assist the colonoscopy training。
This study aims to evaluate the effectiveness of sedation and analgesia in the treament of colorectal polyps by colonoscopy.
Bowel cancer is the 3rd most common cancer in males and females. Most bowel cancers develop from precancerous polyps in the bowel. Colonoscopy can detect and remove these polyps, thereby reducing the risk of developing bowel cancer. However, colonoscopy is an invasive procedure with inherent risk, and can be both uncomfortable and embarrassing to undergo. The risks and numerous other barriers often mean colonoscopy, and cancer preventing polyp removal, is not performed. The investigators aim to start the first in-human feasibility clinical investigation of a robotic magnetic colonoscope in 2021. The new device aims to reduce the discomfort and risk associated with colonoscopy. As part of the patient and end user involvement aspect of the project the investigators aim to perform a mixed methodology inductive type research project exploring experiences of colonoscopy for patient and endoscopists. The study will follow an exploratory mixed methodology format with two parallel work-streams for patients and endoscopists. Each work-stream will consisting of a focus groups (1-2 for each patients and endoscopists), followed by 20 endoscopist and 30 patient in-depth interviews, then an online questionnaire. Each stage will be thematically analysed to form the semi-structured questions for the next stage. The target population will be endoscopists who perform colonoscopy and people who have undergone, or refused to undergo, a colonoscopy. Focus groups will be performed in groups of 6-10 participants, and both interview and focus groups will be performed via video/teleconferencing.
Colorectal cancer screening program has been proven to reduce colorectal cancer (CRC) mortality and is cost-effective. It has been adopted by most countries in the world, and colonoscopy is regarded as the most accurate test for detecting colorectal neoplasm. After screenees underwent colonoscopy, most endoscopists do not routinely explain the preliminary optical diagnosis to the subjects before they going home, which may cause unnecessary anxiety and may reduce the quality of life of the subjects before acquiring the final results. In recent years, endoscopic optical diagnostic technology has been validated by meta-analysis studies as an excellent tool to predict the histology of colorectal polyps and to differentiate the invasion depth of colorectal cancer. The real time feature of endoscopic optical diagnosis allows endoscopists to explain the preliminary results confidently to the subjects immediately after colonoscopy, which is expected to reduce the anxiety of the subjects before they acquired the final results and improve their quality of life. We designed a randomized controlled trial to validate whether real-time endoscopic optical diagnosis could decrease the anxiety burden and improve the quality of life for colorectal-cancer screenees after colonoscopy.
Randomized Clinical trial between two positions to initiate colonoscopy, Right Sided vs Left Sided
Bowel preparation regimens typically incorporate dietary modifications along with oral cathartics. Inadequate bowel preparation can result in failed detection of prevalent neoplastic lesions and has been linked to an increased risk of procedural adverse events. Previous studies have suggested that patient compliance is important to ensure proper bowel cleansing. Patient counseling along with written instructions that are simple and easy to follow and in their native language should be provided to patients. Thus, interventions that improve the quality of bowel preparation could have a great benefit regarding colonoscopy results. Little in the literature that studies the impact of enhanced patient education on bowel preparation quality. In this study we aim to determine the impact of patient education using telephone call one day prior to outpatient colonoscopy on bowel preparation quality.
Primary hypothesis: The percentage of mucosa visualized during the withdrawal of a colonoscopy with reference to the position in the colon by means of the scope-guide is an appropriate parameter for assessment of the quality of colonoscopy and correlates with the probability of the detection of adenomas. Secondary hypothesis: The investigators hypothesize that the percentage of visualized mucosa differs according patient specific parameters (e.g. gender, age, BMI, bowel preparation), procedure specific parameters (e.g. patient position, device, buscopan, fentanyl, withdrawal time) and investigator specific parameters (professional experience as resident and consultant). Study Procedure/Evaluation: The endoscopic images and scope guide from colonoscopy of 500 patients will be filmed. The investigators will correlate the detection of at least one adenoma in the cohort of included patients with the percentage of visualized mucosa during the withdrawal of a colonoscopy. Additional endpoints concerning the quality of the colonoscopy will be assessed as well.
The research hypothesis is that video visualization improves the quality of bowel preparation and the patients' understanding of the modalities of bowel preparation.