View clinical trials related to Polyp.
Filter by:The PREEMPT CRC study is a prospective multi-center observational study to validate a blood-based test for the early detection of colorectal cancer by collecting blood samples from average-risk participants who will undergo a routine screening colonoscopy.
By means of a questionnaire the investigators will study the implementation of hysteroscopy in Flanders and the Netherlands
Pneumoperitoneum is formed with CO2 during laparoscopic abdominal operations. Effect of pneumoperitoneum on coagulation factors is not well known. In our study the investigators aimed to compare the general anesthesia(GA) and combined spinal-epidural anesthesia (CA) during laparoscopic cholecystectomy(LC) with effect on coagulation factors. Fifty patients will be randomly assigned to either the Laparoscopic cholecystectomy under Combined anaesthesia (25 patients) or Laparoscopic cholecytectomy under general anaesthesia (25 patients). All patients has symptomatic gall stone disease or polyp of gall bladder.
The aim of this study was to compare general anesthesia (GA) and combined (epidural and spinal) anesthesia (CA) for laparoscopic cholecystectomy. General anesthesia is a gold standard for laparoscopic cholecystectomy(LC). The use of combined anesthesia may offer several advantages over general anesthesia. Fifty patients will be randomly assigned to either the CA LC (25 patients) or GA LC (25 patients). All patients has symptomatic gall stone disease or polyp of gall bladder. Intraoperative events related to combined anesthesia , postoperative complications, pain score and duration of operation time will record.
The purpose of this study is to determine whether experienced endoscopy nurse participation during screening colonoscopy could increase polyp and adenoma detection rate.
The EndoCuff is novel flexible cuff that can be attached to the distal tip of the colonoscope and helps to flatten large mucosal folds during withdrawal. The study hypothesis is that the use of the Endocuff (EC) increases the adenoma detection rate during colonoscopy. The study purpose is to compare EC-assisted colonoscopy with standard colonoscopy for polyp detection.
To evaluate the safety of using the NaviAid™ G-Eye system during Colonoscopy
In most of situation, left colon (especially SD junction) is considered the most difficult part of colonoscopy, where endoscopist may encounter difficulty for scope insertion and patients may feel pain or uncomfortable. It is suggested more than half of the whole time for scope insertion should be used in left colon. Many methods, such as water immersion, abdominal palpation, have been used to facilitate insertion in left colon. Colonoscopy with whole-colon water exchange method has been shown to be useful for reducing medication used, pain experienced during colonoscopy, increasing the success rate of cecum intubation and adenoma detection rate in sedated and unsedated patients undergoing screening colonoscopy. Exchange of water during scope insertion minimizes loop formation and prevents lengthening and distension of the colon during colonoscopy. This will facilitate the colonoscopy in average or difficult colonoscopy. However, it is not known whether the benefits of water exchange method of colonoscopy was mainly due to its effect on the left colon. We hypothesized that left-colon water exchange colonoscopy (LWE) may have the similar effect regarding the maximal pain score and mean pain score in unsedated patients compared with whole-colon water exchange colonoscopy (WWE). At the mean time, LWE may reduce the insertion time compared with WWE. Here we performed a prospective, randomized controlled study to investigate the efficacies of whole-colon water exchange, left-colon water exchange and air methods of colonoscopy on pain score and insertion time in unsedated outpatients.
The purpose of this study is to demonstrate that NIR fluorescence angiography using the PINPOINT Endoscopic Fluorescence Imaging System ("PINPOINT System" or "PINPOINT") can assess viability of colon tissue during laparoscopic left colectomy. This information will provide the surgeon with clinically relevant information in assessing whether or not the tissue has adequate blood supply in the lower section of the colon prior to a colectomy.
The purpose of this study is to compare the additional diagnostic yield obtained by performing NaviAid™ G-Eye procedure vs. the diagnostic yield obtained by performing standard colonoscopy procedure.