View clinical trials related to Polyps.
Filter by:Correct endoscopic prediction of the histopathology and differentiation between benign, pre-malignant, and malignant colorectal polyps (optical diagnosis) remains difficult. Artificial intelligence has great potential in image analysis in gastrointestinal endoscopy. Aim of this study is to investigate the real-time diagnostic performance of AI4CRP for the classification of diminutive colorectal polyps, and to compare it with the real-time diagnostic performance of commercially available CADx systems.
The aim of this study is to investigate if the use of artificial intelligence (AI) in colonoscopy improves the polyp detection rate, and if the use of AI has a learning effect.
With the continuous development of microsurgery, supporting laryngoscopy acoustic polyp removal has become a very mature clinical operation. The operation has small trauma, short operation time, fast turnover and needing to wake up as soon as possible, but the supporting laryngoscopy has great stimulation to the throat and great hemodynamic fluctuations. This study aims to evaluate the efficacy of ultrasound guided superior laryngeal nerve block as an adjuvant to general anesthesia during vocal cord polypectomy by laryngoscopy.
With a prevalence of 2-4% in western countries, Chronic Rhinosinusitis with Nasal Polyps (CRSwNP) is of major concern regarding its substantial impact on the social and physical quality of life. So far, endoscopic sinus surgery remains the treatment of choice when the first line of medical treatment with corticosteroid has failed. During the last 15 years, several studies have shown that CRSwNP is associated with a T helper 2 (T2) immune response leading to B cell release of IgE, mucosal recruitment of eosinophils from bone marrow via Interleukin (IL)-5, IL-4 and IL-13 mediated chemoattractant production. New biologic agents capable of blocking T2 cytokines have been developed in the field of eosinophil-associated diseases, shifting the paradigm of treatment for patients with CRSwNP. In the near future, endotype profiling with accurate biomarkers will be mandatory to tailor the treatment of nasal polyposis with specific biologic therapies. Herein we propose a prospective study monitoring medical records of CRSwNP patients who undergo biologic treatments. The objectives are to assess treatment efficacy on quality of life, to report clinical and biological criteria for prescription and to measure tolerance and compliance.
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 an open-label, single-arm, multicenter, extension study to evaluate the long-term safety and efficacy of CM310 in patients with CRSwNP.
Colonoscopic removal of polyps is an important and well-established tool in the prevention of colorectal cancers. However, high polyp recurrence rates after endoscopic resection, with resultant development of interval cancers, remains a problemÍž this most commonly stems from unrecognised incomplete polyp resection. Thus, a standardised endoscopic technique is needed that will allow endoscopists to consistently achieve a clear margin of resection. The investigators believe the Cap Assisted Resection Margin Assessment (CARMA) technique will address this problem. This novel technique focuses on a standardised assessment of the resection margin after endoscopic polypectomy utilising available standard high-definition video endoscopes with imaging features including narrow band imaging (NBI) and magnification endoscopy.
The main goal of this trial is to validate a new method for colorectal polyp screening based on stool microbiome signatures. 600 Individuals who are scheduled / planned to undergo a colonoscopy will be recruited for this study and a stool sample and an optional saliva sample will be collected. Analyze process will be conducted on the microbiome of the samples given.
Studies have shown that postoperative inflammation can be relieved by clipping the wound, and can reduce the bleeding rate and perforation rate.Scholars at home and abroad have proposed the use of adhesives and circular surgical lines to clamp the wound.In 2019, Satoshi Abiko and others proposed the use of double-loop clips technology to clamp the wound, and make double-loop clips of appropriate length outside the body.Therefore, our study is a prospective randomized controlled study to explore whether the double-loop clips technique is safe and effective for larger wounds in daily clinical work.
Asthma and chronic rhinosinusitis (CRS) are inflammatory diseases of the respiratory tract, asthma from the lower part, and CRS, from the upper part. In theory, these parts are correlated as if they are one single organ, namely "united airways", which means that if one is affected by any condition, the other might be impacted as well. However, this relationship has not yet been described down to the cellular and molecular levels. By investigating patients that have (1) asthma and CRS with nasal polyp, (2) asthma and CRS without nasal polyp, and (3) just CRS with nasal polyp, we aim to determine the correlation of the upper and lower part of the respiratory tract. At first, the characterization of disease will be determined by established clinical criteria, such as lung function, blood analysis for the presence of eosinophils (a type of white cells), and nasal polyp score. To continue, in-depth analysis of nose, oropharynx, and lung samples will help gain information about the inflammatory profile and local microbiome of the three different groups of patients through molecular and cellular assays. The results of this study will help to describe the hypothesis of the united airways which will provide better guidance for medical treatment of asthma and CRS with or without polyp, thus improving the life quality of patients.