Active clinical trials for "Colonic Polyps"

Early cancers of the rectum can be removed safely through the anus without subjecting patients to major abdominal surgery in a procedure called TEMS (transanal endoscopic microsurgery). Patients undergoing TEMS can benefit from reduced mortality, impotence, hospital stay and avoiding a stoma that may be associated with pelvic surgery. Currently few of the patients eligible for TEMS are offered it for a variety of reasons that include uncertainties about the risk of leaving residual tumour and the increased risk of subsequent recurrence of cancer within the pelvis. Current UK guidelines state there is no role for imaging in assessing the malignant polyp. Conversely whilst retrospectively reviewing their MRI databank the investigators have found evidence that MRI can accurately judge the depth of these early tumours and thereby potentially identify patients for local excision. The investigators hope to prospectively test their hypothesis that an MRI scan can accurately gauge depth of tumour spread in an unselected group of benign and malignant tumours measuring between 20mm and 50mm in size. The investigators will identify eligible patients awaiting surgery / polypectomy and if they consent to this pilot study participants will undergo an MRI to assess their tumour which assesses safety at all levels of the rectal wall. The accuracy of MRI can then be established by reference to gold standard histopathology. Should MRI prove sensitive and specific then the investigators hope to change national guidelines to mandate MRI to standardise assessment and thereby increase the appropriate use of TEMS in the UK.

The purpose of this study is to assess if follow-up telephone calls after colorectal surgery affects a patient's satisfaction, the outcome of their surgery, and their quality of life. In addition, readmissions, complications and emergency room visits can be tracked via these telephone calls, ensuring optimal communication between patients and the surgical office.

The identification of risk factors of colorectal/gastric polyp is more helpful for preventing colorectal cancer. And modifiable factors (such as high-fat diet, abnormal blood lipid, smoking, lack of exercise, obesity), and unmodifiable factors (including age, gender, race, familial adenomas, genetic)) can affect the risk of polyps. Thus early studying risk factors are the key to improving prognosis. what's more, early detection and timely treatment have important clinical significance for preventing and reducing the occurrence of gastrointestinal cancer.

Randomized prospective multi-site validation study.

The purpose of this investigator-initiated study is to determine whether the use of an accessory device called AmplifEYE can improve colonoscopy quality in patients who are undergoing average risk colorectal cancer screening. Primary end point is adenoma detection rates.

Asses the clinical performance of dual-energy CTC for the detection of larger polyps 1 cm or larger without cathartic preparation.

Colonoscopy is an essential tool for diagnostic evaluation for a wide range of gastrointestinal complaints and is considered the gold standard for colorectal cancer screening. This procedure is often associated with patient anxiety both prior to and during the procedure, as well as discomfort,which is managed with procedural sedation.Anticipation of an uncomfortable experience can deter patients from undergoing the procedure despite it being medically indicated. Music has a number of beneficial effects including improving senses of relaxation and well being. Use of music during colonoscopy is inconsistent and there are no society guidelines or recommendations regarding its use. The investigators hypothesize that music will improve the overall patient experience and enhance endoscopist performance.The investigators propose a randomized controlled trial to study effects of music on both the patient experience and endoscopist performance during colonoscopy. Eligible patients will be randomized to two groups: a "music group" and a "no music"control group.Patients in the music group will be asked for their preference of music to be played during their colonoscopy. For patients in the music group, this music will be played in the procedure room during the procedure, while those in the control group will have no music playing. Patient anxiety and pain will be assessed both before and after the procedure.Overall patient experience after the procedure will be assessed on a likert scale. The performance of the endoscopist will be assessed by measuring adenoma detection rate and adenomas per colonoscopy. Additional outcomes to be assessed include total procedure time and amount of sedation required.

Comparison between a 1L of polyethylene glycol+ascorbic acid as a split dose and oral sulfate solution bowel preparation for colonoscopy study design: prospective, randomized, parallel, multi-center trial in 3 hospitals in Korea ( Seoul National University hospital, Seoul National University Bundang hospital, Seoul Metropolitan Government-Seoul National University ) patient inclusion criteria - aged 20-75 adults (out-clinic patients) scheduled for colonoscopy for any indication within the normal process of care

The purpose is to investigate whether polyps that look different at colonoscopy, have formed via different mutations and have different risks of turning into cancer.

This study is aiming to enroll 90 patients with genetically confirmed Lynch Syndrome (LS) from Geisinger's High Risk Colorectal Cancer Clinic (HRC). Upon enrollment in the study, a Cologuard test will be ordered and the results will be blinded until data analysis. Patients enrolled in the study will also undergo a colonoscopy as part of their routine HRC visit.