View clinical trials related to Calculi.
Filter by:Evaluation of Prevalence, Molecular and Genetic Backgrounds of Calcium-Based stones among Patients with Renal Calcular Disease in Mansoura Urology and Nephrology Center
The main aim of this clinical trial is to evaluate the effects of dexamethasone on common bile duct cannulation time during endoscopic retrograde cholangiopancreatography (ERCP) in patients with biliary pathologies. The study will also study the effects of dexamethasone on total procedure time and total fluoroscopy time during ERCP. Participants will be divided into two groups, treatment group and placebo group. Patients in treatment group will receive dexamethasone and those in placebo group will be given normal saline before undergoing ERCP. The results in both groups will be compared to determine the effects of dexamethasone.
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.
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.
A single-arm clinical trial was designed in this study. The surgeon will perform urological telesurgery for patients using Chinese domestically produced "MicroHand S" surgical robot system. The "MicroHand S" surgical robot system consists of two physically separated subsystems named the "surgeon console" and the "patient side cart". The surgeon console includes a stereo image viewer, two master manipulators, a control panel and several foot pedals. The patient side cart includes a passive arm that can slide in the up-down direction and be adjusted forward and backward, a swivel head that can rotate around the vertical axis, and three slave arms. In addition, surgical instruments and sterile bags are the essential accessories for the "patient side cart". The principle of the telesurgery is as follows: the surgeon console takes the surgeon's input and translates manipulation into a control signal. After network transmission, the signals will be received by the patient side cart and will be used to control the slave robot to manipulate the instruments to perform the operation within the patient's cavity. The 3D images captured by the endoscopic camera will be simultaneously sent back to the screen of the surgeon console as visual feedback. Data between the surgeon console and the patient side cart will be transmitted through a 5G network or other advanced network networking scheme. The surgeon remotely manipulates the slave arms and performs surgeries for patients in remote areas. The safety and efficacy of the robot system in remote clinical treatment will be verified by the primary and the secondary evaluation criteria. One hundred patients with urological diseases will be enrolled in the clinical trial. Primary evaluation criterion: The success rate of the surgery. Surgery success is defined as that all surgeries are performed remotely and safely without transfering to other types of surgery, such as open surgery or normal robot-assisted surgery. Secondary evaluation criteria: Operative time, blood loss, postoperative pain, preoperative adjusting time, hospitalization time, average network latency, task load, peer recognition, anxiety index. Patient enrollment: This experiment aims to investigate the safety and effectiveness of the domestic robot system in clinical urological surgery under the current network networking scheme. It is planned that 100 patients with urinary system diseases will participate in the clinical trial.
The purpose of this study is to use the Shuotong ureteroscopy for surgical treatment of patients with upper urinary tract stones, taking advantage of the fact that the Shuotong mirror can be used for simultaneous lithotripsy and stone removal, thus maximizing the discharge of stones from the body and improving the stone removal rate.
The goal of this clinical trial is to test the Break Wave™ system in patients with upper urinary tract stones. The main question it aims to answer is whether the device is safe and effective in fragmenting (breaking) stones. Participants will a) undergo the Break Wave™ procedure, b) have a telehealth visit at 2 weeks, and c) return for an imaging study at approximately 10 weeks post-procedure.
Role Of Retrograde Intrarenal Surgery In Management Of Renal Stones: Single Center Experience