View clinical trials related to Polyps.
Filter by:We hypothesize that the miRNA expression in subjects with nasal polyps and Aspirin-exacerbated respiratory disease (AERD) differs from the miRNA expressed in subjects with nasal polyps but without Aspirin-exacerbated respiratory disease (AERD).
This is an open-label, multicenter study designed to assess the safety of intranasal administration of 400 μg of fluticasone propionate twice a day delivered by the OptiNose device in subjects with chronic sinusitis with or without nasal polyps. The study consists of an up-to-7-day pretreatment phase followed a 3-month open-label treatment phase. The duration of each subject's participation is approximately 13 weeks.
This is an open-label, multicenter study designed to assess the safety of intranasal administration of 400 μg of fluticasone propionate twice a day delivered by the OptiNose device in subjects with chronic sinusitis with or without nasal polyps. The study consists of an up-to-7-day pretreatment phase followed a 12-month open-label treatment phase. The duration of each subject's participation is approximately 53 weeks.
This study will compare two strategies for colonoscope withdrawal, using polyp detection as the primary outcome measure, to determine the optimal withdrawal strategy. Null Hypothesis: On withdrawal of the colonoscope, examining patients with dynamic position change does not yield more polyps than the supine position. Alternative Hypothesis: On withdrawal of the colonoscope, examining the patients with dynamic position change improves polyp detection compared to the supine position.
The PeerScope System consists of Peer Medical camera heads, endoscopes, video system, light source and other ancillary equipment. The system is intended for endoscopic diagnosis, treatment and video observation of the digestive tract. The PeerScope system model B is indicated for use for endoscopy and endoscopic treatment within the lower digestive tract (including the anus, rectum, sigmoid colon, colon and ileocecal valve) of adults patients. Objective:To compare the additional diagnostic yield obtained by using the PeerScope System™ extended view vs. the diagnostic yield obtained by the Standard view colonoscopy. In addition, time measurements including time to cecum, time for withdrawal and overall procedure time will be analyzed and reported for each group.
Rationale: The hysteroscopic morcellator (HM) is a novel technique for removal of intrauterine polyps, myomas and placental tissue. It withholds some technical advantages over resectoscopy. Previous data suggest that it's a faster technique than the latter, and shows that it has a low complication rate. Objective: To compare the HM to bipolar resectoscopy for removal of: 1) large intrauterine polyps, 2) smaller type 0 and 1 myomas, 3) residual placental tissue, in terms of efficiency and complications. Study design: Single blind, randomized controlled multicenter trial. Study population: Women aged over 18 years old with: 1) large (≥ 1 cm) intrauterine polyps, 2) smaller (≤ 3 cm) type 0 or 1 myomas, 3) residual placental tissue, who are planned for hysteroscopic removal. Intervention: Patients are randomized between removal with the HM or the bipolar resectoscope. Main study parameters/endpoints: Installation and operating time. Nature and extent of the burden and risks associated with participation, benefit and group relatedness: Women who are referred to our polyclinic will be seen on a first visit, and, according to the standard work-up, an ultrasound will be performed when intrauterine pathology is suspected. To confirm the diagnosis a saline infusion sonography (SIS) and/or ambulant diagnostic hysteroscopy will be performed consequently. Once the diagnosis is confirmed and surgery is planned, women will be asked whether they want to take part in this study. At this moment, both techniques are used in our hospitals and the choice of treatment depends on the preference of the gynaecologist. All women will be treated with operative hysteroscopy in a daycare setting according to the standard of care, only now randomized between the two techniques. A standard postoperative visit with ultrasound examination and/or ambulant diagnostic hysteroscopy is scheduled 6 weeks later. Late postoperative complications and complaints are recorded. It is expected that the HM beholds some advantages over the bipolar resectoscope such as shorter operating time and less complications (e.g. risk of perforation, current and fluid related complications). Previous data do not demonstrate any additional risks related to the use of the HM. Moreover we will check whether the HM has a lower risk of intrauterine adhesion formation, as this might influence patient's fertility. After completion of the RCT, an observational study is planned considering pregnancies subsequent to the hysteroscopic procedure.
Polyp detection rate in colonoscopy following oral administration of MMX methylene blue tablets
Outpatient polyp treatment can be performed in a few different ways but generally involves passing a special type of hysteroscope (3-6 millimetre in diameter) into the womb through which specifically designed miniature operating instruments are passed to remove the polyp(s). At present the most commonly used instruments use an electrical cutting edge. However, a new instrument using a mechanical cutting edge has come to market. In patients having a general anaesthesia the mechanical cutting instrument has been shown to be easier to learn, more effective at completely removing polyps and quicker. However, the instrument is slightly larger, which could potentially cause more discomfort and prolong the procedure in the outpatient setting. Therefore, the investigators want to compare the electrical and mechanical instruments for speed, completeness of polyp removal and patient acceptability.
Colonoscopy withdrawal times are a critical element in determining quality of colonoscopy; however, few studies have evaluated specific factors that may influence the duration of withdrawal, and specifically short withdrawal times. Other factors affecting polyp detection rate, one element of quality of colonoscopy, also need further study. By collecting data on hundreds of colonoscopies performed by 9 endoscopists, our goal was to identify factors associated with withdrawal time, inappropriately short withdrawal times, and polyp detection rate during colonoscopy.
The endoscopic management of patients on anti platelet agents is a wide problem more and more common, with prevalence of patients on this type of therapy steadily increasing. The risk of bleeding on antiplatelet during an endoscopic examination can be major. The risk of cardiovascular thrombotic accident in dirty shutdown of anti platelet, was recently described as significant (4-5%). Current recommendations for polypectomy allow the gesture as aspirin and are based on literature data scarce, often retrospective. Such work may be for a lack of increased bleeding risk during a colonic polypectomy under aspirin. There is to date no significant data published on the implementation of the endoscopic mucosal resection (mucosectomy) under aspirin. It is necessary to achieve a national multicenter observational study on a large scale in the daily practice of colonic polypectomy / mucosectomy in patient taking aspirin. The aim of the study is to determine the incidence of immediate and delayed bleeding colonic polypectomy and mucosectomy with aspirin. The patients undergoing colonoscopy and taking a long-term aspirin therapy and presenting a major risk of thromboembolism or medium will incluables. Inclusion will be achieved for those patients receiving aspirin colonoscopy after signing a specific consent. Polypectomy will be possible according to the recommendations of the French Society of Digestive Endoscopy. Upon discovery of a lesion to be resected by mucosectomy, the patient will benefit from the mucosectomy. The study is observational, multicenter, prospective, national. The polypectomies / colonic mucosectomies will be made using the conventional techniques and the current recommendations. The immediate and delayed hemorrhage meet specific definitional criteria. The number of patients to be included will be 1000. The duration of the study inclusions will be 36 months. The trial will be conducted in full compliance with laws, regulations and ethical aspects. It is expected in this work that the incidence of post-polypectomy bleeding under aspirin is the same. The rate of bleeding reported in the post mucosectomy size is higher compared to the polypectomy: it is however expected that the rate of bleeding in the post mucosectomy with or without aspirin is indifferent. It will follow a recommendation of French society adapted to endoscopy for this type of procedure