8 Clinical Trials for Various Conditions
The purpose of this study is to evaluate the safety and feasibility of endoluminal rectal prolapse repair under sedation and local anesthesia using CO2 colonoscopy to fix the rectum with sutures to the abdominal wall under needlescopic control. Further, investigators will evaluate the short and long-term clinical outcomes after this novel approach to treating rectal prolapse.
No randomized controlled trial (RCT) has compared no rectopexy to rectopexy for external full-thickness rectal prolapse (FTRP). This study was performed to test the hypothesis that recurrence rates for FTRP following no rectopexy are not inferior to those for rectopexy. Method: This is a multicenter randomized non-inferiority trial. Eligible patients were randomized to no rectopexy or rectopexy. The no rectopexy arm was defined as abdominal surgery with rectal mobilization only. The rectopexy arm was defined as abdominal surgery with mobilization and pexy. Sigmoid resection was not randomized and was added in the presence of constipation. The endpoint was recurrence rates defined as presence of external FTRP after surgery. A pre-RCT meta-analysis suggested a sample size of 251 patients based on a 15% expected difference in the 5-year cumulative recurrence rate. Recurrence-free curves will be generated and compared using the Kaplan-Meier method and log-rank test, respectively. A Bonferroni adjustment was used. An adjusted p value of \<0.01 was considered significant.
Background: Rectal prolapse (RP) is the descent of the upper rectum and is a common problem in the western world. Surgery is the only definite treatment and is preferably performed minimally invasive. High-level prospective studies on treatment strategies for RP currently are lacking and, thus, no consensus exist regarding the optimal treatment for patients with RP. Furthermore, remarkable transatlantic differences exist, as in Europe, laparoscopic ventral rectopexy (LVR) is regarded the treatment of choice, while in the USA Laparoscopic Resection Rectopexy (LRR) remains the golden standard. Objective: To determine the optimal minimally invasive surgical treatment for patients with RP. Design: International, prospective, comparative double cohort study. The first cohort will consist of 120 European patients with a RP and will be treated with LVR. Centres in The Netherlands, Belgium and the UK are enlisted for participation. The second cohort will consist of 120 American patients with a RP, treated with LRR. Several US centres are enlisted. Preoperative work-up consists of radiological imaging and standardised questionnaires. Follow-up (FU) is set on two years. During FU, pre-operative imaging and questionnaires will be repeated. Primary \& secondary outcomes: Primary endpoint will be improvement on the Gastro-Intestinal-Quality-of-Life-Index (GIQLI). Secondary endpoints will be generic Quality-of-Life, functional results, morbidity, mortality, recurrences and cost-effectiveness. Time frame: Study and inclusion start will be on January the 1st, 2011 and will take approximately 18-24 months. Therefore, total study duration will be 42-48 months.
Currently a multiport robotic surgery platform (Intuitive Xi) is widely available and used for colorectal surgery indications. A Single port platform (Intuitive SP) is FDA approved for Head and Neck and Urology but has not been widely used in colorectal surgery. This study seeks to evaluate the safe and effective use of the SP platform for colorectal surgery indications.
The proposed study is a post marketing, observational, retrospective data collection intended to gather and record data on patients treated with the ColonRing device in routine clinical practice at 4-6 centers. The data will assist in future evaluating the performance of the ColonRing device in regards to the creation of a colorectal anastomosis in Low Anterior Resection procedures. Hypothesis: The performance of the ColonRing, determined by the rate of complications, will be within the acceptable range reported in the literature for alternative treatment modalities.
The proposed study is a post marketing, observational, retrospective data collection intended to gather and record data on patients treated with the ColonRing™ device in routine clinical practice at a single center. The data will assist in further evaluating the performance of the ColonRing™ device in regards to the creation of a colorectal anastomosis. Hypothesis:The performance of the ColonRing™, determined by the rate of complications, will be within the acceptable range reported in the literature for alternative treatment modalities.
The purpose of this study is to evaluate the safety and feasibility of using the Single Port (SP) robot (daVinci, Intuitive Surgical) to perform single port robotic colon surgery and transanal robotic surgery. The hypothesis of the study is that the SP robot will prove a safe effective modality to perform these procedures.
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.