View clinical trials related to Polyps.
Filter by:To assess the accuracy of predicting histology with virtual chromoendoscopy for distal colorectal polyps according to the ASGE PIVI statement.
Phase 2, open-label, multi-center study to evaluate the clinical effects of oral administration of dexpramipexole for 6 months in subjects with chronic sinusitis with nasal polyps and eosinophilia.
The purpose of this study is to determine the best way to ensure that polyps are completely removed by evaluating the borders of the removed polyp. If a polyp is found that meets the size requirements for the study, the investigators will take extra biopsies of the margin to determine if there is any abnormal tissue or cancer at these borders.
The purpose of this study is to compare cold snare polypectomy and cold forceps polypectomy using narrow-band imaging endoscopy for removal of diminutive colorectal polyps.
The investigators have recently become proficient in a new, and we believe more effective technique for polyp removal. Known as Endoscopic Submucosal Dissection (ESD). ESD involves removing the polyp in one piece. It is preferable to remove the polyp in one piece as it minimises the chance of leaving residual polyp tissue behind. There have also been recent studies overseas that have shown this new technique to be quite effective. In this study, half of the patients will receive the newly developed technique of polyp removal (ESD), while the other half will receive conventional Endoscopic Mucosal Resection (EMR) treatment. This study will allow us to show which technique results in lower recurrence rates and is more effective.
A randomized, double-blind, ascending multiple dose study in healthy volunteers and subjects with chronic rhinosinusitis with nasal polyps
Objective:To explore the role of the right portal pedicle and Rouviere's sulcus as an anatomic landmark in laparoscopic cholecystectomy. Methods:The investigators are going to select 60 patients intending to perform Laparoscopic cholecystectomy from April 2014 to April 2015.Check out the presence of the right portal pedicle and Rouviere's sulcus during the surgery and divide into the experimental group and the control group.Experimental group operated in Laparoscopic cholecystectomy with the guide of Rouviere's sulcus while the Control group operated with the traditional way. Research hypothesis:Compare the differences between the Experimental group and the Control group in bile duct injury rate,complication rate,blood loss,operative time ,conversion rate and hospital stay.It is supposed that the results of Experimental group are superior to the control group,difference is statistically significant(P<0.05). So the investigators can draw the conclusion that the anatomy method with the guide of right portal pedicle and Rouviere's sulcus is useful in laparoscopic cholecystectomy.
Hysteroscopy today is considered the gold standard for the diagnosis and treatment of endometrial polyps. In recent years we have used the bipolar energy for resection of polyps by hysteroscopy, becoming a routine clinical practice and universally accepted. Resection of endometrial polyps laser energy has recently begun to be used with satisfactory results, so studies are needed to analyze these results and compare it with the usual techniques . This time in advance of medicine, it is appropriate to introduce minimally invasive procedures , allowing resection of endometrial polyps on an outpatient basis without anesthesia and acceptable to most patients. These procedures assume a lower cost and are associated with a lower surgical risk due to their realization without anesthesia . Hypothesis: Resection of polyps outpatient laser diode has a similar or superior to that of the bipolar electrode tolerability. The diode laser is a viable , quick , simple technique with a high percentage of resection and high degree of satisfaction of patients
Oral corticosteroids are commonly utilized for the management of chronic rhinosinusitis with and without nasal polyps (CRSwNP and CRSsNP, respectively). Although strong evidence supports the benefit of routine and perioperative oral corticosteroids for CRSwNP, there is limited evidence to support their utility for CRSsNP. The investigators intend to perform a randomized, double blind, placebo controlled clinical trial to investigate the impact of steroids used within 2 weeks prior to surgery for CRSsNP. Patients with CRSsNP that present to the investigators office will be included if they have failed maximal medical management and have elected to undergo endoscopic sinus surgery (ESS) after July 1, 2014. The investigators hypothesis is that oral corticosteroids given 2 weeks prior to surgery will improve subjective and objective outcome measures.
The study hypothesis is whether digestion enzyme(Combizym) and intestinal flora drugs(Bifidobacteria) can decease recurrence rate of colon polyps