View clinical trials related to Ureteric Injury.
Filter by:Urolithiasis is one of the most prevalent urological diseases affecting general population across the world. The available treatment modalities for renal stones are Shock wave lithotripsy (SWL), Percutaneous Nephrolithotomy (PNL), and Retrograde Intrarenal Surgery (RIRS). Irrigation for RIRS is the critical component for the success of procedure. To avoid detrimental effects of high pressure, intra-renal pressure (IRP) has to be lower. Different studies have shown that high irrigation pressure raises intra-renal pressure leading to pyelo-venous and pyelo-lymphatic reflux which can lead to sepsis and septic shock. Comparative study of different irrigation pressure during RIRS is lacking. This is randomized controlled trial conducted in Department of Urology and Renal Transplant Surgery for duration of one year. Objective of the study is to compare safety and efficacy of gravity irrigation versus pressure irrigation. Patients with symptomatic kidney stones: non lower pole stones <2cm, lower pole stones <1cm and lower pole stones 1-2 cm in whom PCNL is contraindicated will be enrolled in study with informed consent. Retrograde intrarenal surgery will be performed as standard procedure and Ho:YAG laser will be used to fragment stones. Stone free rate at postoperative day 1 and after 1 month will be monitored through X-ray KUB. Maximum irrigation pressure, duration of surgery, stone size, density, location, intraoperative and postoperative complications as classified by Clavien-Dindo will be noted for all patients. Data will be appropriately analyzed and statistical tests applied as necessary.
The main aim of this project is to assess whether intravenous methylene blue can help identify the ureters during open and laparoscopic (keyhole) surgery. The ureters are small tubes that link the kidney to the bladder and, if not properly identified during surgery, may be damaged. Methylene blue has been safely given to patients for many years and it is fluorescent. It is removed by the kidney and will therefore travel through the ureters. Methylene blue shines brightly (becomes fluorescent) when viewed under red light. This study aims to compare the ability of methylene blue with white light to identify the location of the ureters during colorectal surgery. Recruitment will include 50 patients undergoing colorectal surgery (25 for keyhole/laparoscopic, 25 for open procedures). Each patient will act as their own control. To detect the fluorescence, a special fluorescent laparoscope for keyhole surgery will be utilised, and a wide-field camera will be used for open surgery. The potential benefits of this procedure are to identify the ureters during surgery and therefore prevent inadvertent damage to them It is hoped that near infra-red light emitting from the ureters will be detected. This will allow the surgeon to determine the anatomy of the ureters during the operation and avoid inadvertent injury. Funding source: Nuffield Department of Surgical Sciences, University of Oxford Recruitment sites: Oxford University Hospitals NHS Trust.