View clinical trials related to Colon Polyps.
Filter by:We are studying new ways to look for abnormal areas/tissues of the colon during a colonoscopy. The current scopes used for colonoscopies are very good. But if the area doesn't look different to the naked eye, then the scope can't improve on that. We are using special stains or dyes and special scopes to see abnormal areas that are hard to see with the naked eye. The stain or dye is "fluorescent", meaning it glows when special light is used in the colonoscopy scope. You are being asked to let us spray a peptide with a fluorescent tag onto your colon. Peptides are small chains of amino acids (the building blocks that make up proteins) linked together. The peptide we use has 7 amino acids attached to a fluorescent tag ("FIT C" or Fluoresceinisothiocyanate). FITC is used by eye doctors to examine your eyes (the yellow eye drops). We are testing this "fluorescent peptide" to see if it will stick if there are any abnormal areas. If the peptide "sticks", it will "glow" when a special light in the scope is used. In this study, we will apply the fluorescent peptide to your colon by using a spray tube that fits in the colonoscope. This is a phase IB study. This means that although we have applied the peptide to 25 people in our first research study, we still need to learn more about "fluorescent peptide" in people. The Food and Drug Administration (FDA) has not approved this agent, but is allowing us to test it in this study. The main goal of this study is to see if the peptide "glows" well and if we can take pictures of areas that do glow. This is a research study of the peptide and our ability to see it "glow or fluoresce". Being in this study and applying the peptide won't change how our biopsies are taken or how your colonoscopy is done.
Study Objective: To compare the hospital costs between the standard surgical procedure and the Laparascopic Assisted Colonoscopic Polypectomy (LACP) technique for patients with advanced polyps in the colon.
Comparing the efficacy of cold biopsy forceps versus cold snare biopsy for removing colon polyps.
The investigators aim to define the concept of difficult colonic polypectomy and investigate whether resection methods (hot/cold snare, Endoscopic mucosal resection (EMR), endoscopic submucosal dissection (ESD)), adjuvant techniques (endoloop, prophylactic hemoclip placement, submucosal injection) and operator experience have an impact on polypectomy outcomes and complication rate.
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 PeerScope B System™ by PeerMedical Ltd. is intended to provide visualization (via a video monitor) and therapeutic access to the lower intestinal tract. The lower intestinal tract includes, but is not restricted to the organs, tissues and subsystems: large bowel and cecum. The device is introduced rectally, as with any standard colonoscope when indications consistent with the need for the procedure are observed in the adult patient population. The purpose of this prospective clinical study is to establish the usability of the PeerScope B System™ when used during standard colonoscopy procedure. The study population is comprised of patients indicated for colonoscopy. The primary endpoint is reaching the cecum of the colon with PeerScope B System™.Secondary endpoints: 1. The first secondary endpoint is the incidence of complications using the PeerMedical colonoscope. 2. The second secondary endpoint is successful therapeutic interventions as biopsies, polypectomies, APC etc. 3. The third secondary endpoint is the procedure time. 4. The fourth secondary endpoint is the subjective evaluation of the additional view angle by the physician. 5. The fifth secondary endpoint is patient satisfactory.
The investigators seek to compare the accuracy of the existing colonoscope model to determine the magnitude of the improvement the investigators can expect in polyp discrimination as neoplastic or non-neoplastic.
Colon cancer is the third most common cancer in western society. To prevent colon cancer it is recommended for people to undergo a screening colonoscopy at the age of fifty. The purpose of the colonoscopy is to remove polyps, since some of these lesions are precancerous. Precancerous polyps are called adenomas. This method of prevention is effective, but the standard colonoscopy currently used does not detect all polyps. Studies have reported a polyp miss rate of about 24%. Furthermore, we are unable to distinguish precancerous polyps from benign polyps, also known as hyperplastic polyps, with standard colonoscopy. This results in all polyps being removed at time of colonoscopy, even the benign polyps. To help improve the detection of colon polyps new endoscopic technologies have been developed. These technologies include high definition white light (HDWL)and high definition narrow band imaging (HDNBI). HDWL improves the overall resolution of the images seen during colonoscopy. HDNBI can help us better classify polyps by enhancing their tissue appearance as well as seeing small blood vessels and capillaries. The goal of this study to determine if HDNBI imaging shows an increased polyp detection rate when compared to the current standard colonoscopy. In addition to develop a classification system to help better differentiate between precancerous polyps and their benign counterparts using HDWL and HDNBI.
The purpose of this trial is to gather information on the postoperative recovery time and hospital length of stay experienced by patients having laparoscopic surgeries. This trial will also collect data on daily surgical pain and pain medication and how it relates to recovery after surgery. In addition, the investigators will collect data on the use of pain medication and laxatives in patients following laparoscopic large bowel resection.
The purpose of this study is to find out if guided fluid administration with the esophageal monitor is superior to standard fluid administration and whether use of the hetastarch or lactated ringers offers different benefits with respect to length of stay in the hospital after hand-assisted colorectal surgery.