View clinical trials related to Colonic Neoplasms.
Filter by:The aim of the study is to determine if Serrated Poliposis Syndrome (SPS) patients with SPS criteria 2, with clearing phase achieved and without any advanced lesion or less than 5 relevant lesions at last colonoscopy have the same advanced neoplasia incidence in the surveillance colonoscopy at 2 or 3 years. Patients selected for the study will be randomised in two groups for the surveillance: group 1, surveillance with colonoscopy in two years; group 2, surveillance with colonoscopy in three years. Randomization will be done at the database program (RedCAP). All colonoscopies will be performed with high definition (HD) system and it will be the choice of the endoscopist whether to use chromoendoscopy with indigo carmine o virtual chromoendoscopy. Protocol bowel preparation will be recommended by each centre. Sedation will be prescribed and decided by the endoscopist during the examination. Data from all the resected and visualized lesions during the colonoscopy will be collected on the database. A pathologist familiarized with serrated lesions will be in charge of the sample analysis. Serrated lesions will be classified attending de WHO criteria for serrated lesions. The investigators define "advanced adenoma" as adenomas ≥10 mm with villous histology and/or with high grade of dysplasia (HGD). The investigators define "advanced SL" as any SL ≥10mm and any SL with dysplasia. The investigators also define "advanced neoplasia" as any colorectal cancer (CRC), any advanced adenoma or advanced Serrated Lesions (SL). Quality of bowel cleansing will be graded by each endoscopist following the Boston Bowel Preparation Scale. This scale evaluates each segment (ascending colon, transverse colon and descending colon) of the following form: 0 = segment of colon whose mucosa cannot be seen due to the existence of solid stools that cannot be eliminated; 1 = mucosa portion of a colonic segment that can be seen, but other areas of the colonic segment are not seen, either due to the presence of dirt, feces or opaque liquid; 2 = existence of small amount of dirt, small fragments of stool and / or opaque liquid, but the mucosa of the colonic segment can be seen well; 3 = all the mucosa of the colonic segment can be seen well without residual dirt, small traces of stool or opaque liquid. Patients with inadequate preparation (when in any segment the score is 0 or 1, or the total score is less than 6) will be excluded from the study. During colonoscopy all complications as post-polypectomy bleeding, perforation or cardio-respiratory events will be registered. Those complications will be considered if surgery or hospital admission is required.
Efficacy Evaluation of Enhanced Bowel Preparation Instructions in Elective Colonoscopy.
In the general population, the percentage of people with at least one digestive disease is 16.7%. Among these digestive diseases, inflammatory bowel disease (IBD), irritable bowel syndrome (IBS) and patients who should benefit from digestive examinations as part of a screening oriented either by the patient's family history or following the performance of an immunological screening test ( FIT) in the stool will be studied. The aim of this project is to build a biological collection with associated clinical data for research projects.
An Italian randomized controlled trial parallel-group in patients with a malignant tumor of the right or proximal transverse colon requiring right hemicolectomy.
This project seeks to identify DNA-adducts in colon tissue from different groups of patients with CRC scheduled for complete or partial colon resections. Other patients scheduled for resection of the colon serve as controls. In addition, surrogate samples such as white blood cells are investigated for the presense of adducts while blood plasma and urine are investigated for the presense of DNA-repair products.
This is a prospective randomized controlled study. investigators will randomly assign patients to the indocanine green (ICG) group and control (CL)group to compare the differences of lymph nodes dissection in station 253 between the two groups.
Colorectal surgery has made progressive advances in recent years related on one hand to the implementation of diagnostic methods that allow an early diagnosis of tumors and on the other hand to the development of therapeutic options based on laparoscopic surgery. In particular, multicenter clinical trials have shown that the laparoscopic approach to colorectal cancer had a comparable or even better outcomes in terms of perioperative complications and functional recovery of patients than traditional surgery. Complete Mesocolic Excision (CME) in right colonic resections is a surgical approach, of greater technical complexity, that appears to improve the oncological outcomes of these patients at the cost of an increased rate of complications. The highest rate of complications reported in the literature in patients undergoing CME was related to intraoperative bleeding due to the central vascular dissection that is performed. CT technological advances have made possible to perform CT angiography with multiplanar and three-dimensional reconstructions with the possibility of obtaining a detailed preoperative map of the vascular anatomy of these patients. CT scan was acquired immediately before contrast material injection and during arterial and venous phase. Arterial phase was obtained using the bolus tracking technique with an automated scan-triggering software. Image analysis was performed using multiplanar reformations (MPR), maximum intensity projection (MIP) and 3D volume rendering (VR) technique. The purpose of the CT was to identify three different parameters necessary for proper performance of CME and CVL and to compare preoperative observations with intraoperative evidence. All surgeries were performed by teams experienced in laparoscopic colorectal surgery. The investigators evaluated:- Fascia of Fredet; vascular structures; lymph nodes.
To compare the efficacy of FOLFOXIRI plus Cetuximab and FOLFOXIRI plus Bevacuzumab in the conversion therapy of right-sided colon cancer liver metastases
The aim of this randomized double-blinded placebo-controlled phase 2 study is to determine efficacy of preoperative treatment with interferon-alfa2a in patients with pMMR colon cancer on perioperative immune suppression and infiltration of lymphocytes in the primary tumor.
This study tests whether a high-fiber diet based on legumes, such as dry beans, can lead to sustained reductions in obesity and colon cancer risk in persons at highest risk, namely overweight or obese, post-polypectomy patients.