View clinical trials related to Calculi.
Filter by:To determine the types, incidence and risk factors of adverse events after pancreatic extracorporeal shock wave lithotripsy (P-ESWL), define the grading criteria of adverse events after P-ESWL, and analyze the efficacy of P-ESWL, which will provide evidence-based medical evidence to guide physicians' clinical practice.
Percutaneous nephrolithotomy (PNL) is the gold standard recommended treatment technique for kidney stones larger than 20 mm. For kidney stones between 10 - 20 mm, both shock wave lithotripsy (SWL) or flexible ureterorenoscopy (f-URS) are recommended as the first choice of treatment and PNL is recommended as the second. In patients who are planned to undergo f-URS, a ureteral access sheath (UAS) is placed in the ureter at the beginning of the operation in order to provide a better image, reduce intra-renal pressure, easier stone fragment retrieval and shorter operative time. In certain cases, such as ureteral stricture, kink or edema, the ureteral access sheath may not be able to successfully inserted into the ureter. At this stage, double-J (JJ) stent can be inserted into the ureter to create passive dilatation, and a second f-URS session can be scheduled a few weeks later. Another option is to perform PNL operation to the patient in the same session. In this randomized prospective study, we aimed to compare these two different surgical approaches in terms of patient comfort and surgical success in patients with kidney stones between 10 - 20 mm in which access sheath insertion was failed in the initial f-URS session.
Around 10-18% of patients undergoing cholecystectomy for gallstones have common bile duct (CBD) stones. Currently, various procedures for the treatment of cholecystocholedocholithiasis are available including open cholecystectomy plus open common bile duct exploration (OC+OCBDE), laparoscopic cholecystectomy plus laparoscopic common bile duct exploration (LC+LCBDE), may be trans-cystic or trans-choledochal, and laparoscopic cholecystectomy plus endoscopic retrograde cholangiopancreatography (LC+ERCP), which may be performed pre, at, or after LC.
Endoscopic retrograde cholangiopancreatography (ERCP) and endoscopic sphincterotomy (EST) are the preferred techniques for treating common bile duct stones (CBDS) due to their advantages of minimal trauma, rapid recovery, low cost, and high success rates of up to 95%. Despite these benefits, the recurrence rate of CBDS in patients after endoscopic therapy ranges from 4% to 25%, posing a significant challenge for endoscopists and an urgent problem to be addressed. Abdominal massage is a promising non-invasive physical intervention for preventing recurrent CBDS. This technique is a simple, effective, and non-invasive technique that can be utilized for patient self-management and is widely used in the field of digestive diseases. External pressure applied to the common bile duct during abdominal massage may promote bile excretion from the duct to the duodenum, similar to the effect of gallbladder movement flushing bile, which can prevent bile deposition in the common bile duct, thereby preventing the formation of new stones or flushing away newly-generated small stones. Therefore, investigators plan to conduct a prospective, multicenter, randomized controlled study to investigate the preventive effect of abdominal massage in patients with recurrent CBDS.
To compare the diagnostic accuracy of extra-oral x-rays with intra-oral x-rays, in contrast to clinically observed measurements, for the detection of calculus and bone loss of either the suprabony or infrabony types in patients undergoing periodontal surgery.
This study will examine the effects of ureteroscopic lasing technique (dusting, fragmentation and a hybrid approach) on total lasing time and total energy in patients with a large renal calculi burden of single or multiple stones with the sum of its longest diameters between 10-20 mm and having mean Hounsfield units of 1000 or more.
The goal of this observational study is to analyse the occurence of urinary calculi after bladder augmentation in children: - location of the calculi (kidney or bladder) - type of bladder augmentation with higher rate of urinary calculi and why - Find risk factors of urinary calculi in bladder augmentation (age, sex, other bladder procedures..)
To predict the outcome of flexible ureteroscopy in the management of renal stones based on preoperative scoring module using five preoperative parameters that have effect on stone free status postoperatively.
The goal of this observational study is to compare the use of Airseal versus a standard insufflation, in children who underwent laparoscopic cholecystectomy, between January 2021 and December 2022. The main questions it aims to answer are: - amount of analgesics consumed postoperatively - mean digital pain scale Data are directly extracted from patients medical files. The investigators will compare the Airseal group (A group) to the Standard insufflation group (S group) to see if the A group consumes significatively less analgesics and are less painful than the S group.
The purpose of this study is to collect descriptive performance data using the MONARCH Platform, Urology (a novel robotic device) to perform mini-percutaneous nephrolithotomy (kidney stone removal) procedures. Data gathered from this study will be used to optimize the robotic platform and inform training and education material for the future users.