View clinical trials related to Calculi.
Filter by:Role Of Retrograde Intrarenal Surgery In Management Of Renal Stones: Single Center Experience
This study is designed to provide an evaluation of currently available disposable flexible ureteroscopes in real-world conditions. Due to high re-processing costs associated with re-usable flexible ureteroscopes, there has been a demand for Urologic device manufacturers to provide single-use flexible ureteroscopes.
Retained CBD stone after ERCP is a common problem in clinical practice. This study aimed to evaluate the effect of saline irrigation of common bile duct after complete stone removal considered by ERCP in the reduction of residual CBD stone and the effect on clinical outcome.
- Reporting prevalence of uric acid based renal stones among patients with nephrolithiasis admitted to Mansoura Urology and Nephrology center (MUNC). - Furthermore, identification of monogenic and polygenic uric acid stone formers. - Identification of factors associated uric acid stone recurrence as well as determinants of laterality in patients with uric acid based renal stones
Conventional Percutaneous nephrolithotomy (PCNL) surgery requires the patient to first undergo retrograde transurethral ureteroscopic insertion of the ureteral catheter in the lithotomy position, and then change the patient to the prone position. However, repeated operation on the ureter can bring about immediate and long-term negative effects, such as ureteral false way formation, ureteral damage, perforation, avulsion, catheter insertion into the vena cava, pricking the kidney, increased postoperative pain, urinary extravasation, scar formation, and ureteral narrowing. The study planned to perform the operation in the prone position without reverse insertion of a ureteral catheter in the PCNL surgery.
Urinary stones are a common disease affecting one in 11 people . Their clinical presentation varies from being silent to severe loin pain owing to urinary obstruction. Currently, ESWL is the treatment of choice for most renal calculi ⩽30 mm, with success rates of 60-99%. Although many treatment options exist, ESWL has the advantages of simplicity and non-invasiveness. In contrast, failure of a first ESWL attempt requires a follow-up ESWL procedure, or an alternative procedure, both of which increase medical costs. Advancements in imaging have significantly contributed to this process. In the mid- 1990s, computed tomography (CT) began to replace intravenous urography (IVU), abdominal films (KUB), and ultrasound (US) in stone diagnosis. Studies demonstrated that CT had superior sensitivity and specificity for stone diagnosis compared to the aforementioned modalities. Now non-contrast multidetector CT (NC-MDCT) is the gold standard for the detection of urinary system calculi. CT is also clinically useful as it can show alternate renal and non-renal pathology if present. Many factors have been reported to predict ESWL outcome, such as skin-to-stone distance (SSD), stone size, stone location, multiplicity, the energy used, and Hounsfield Unit (HU) values measured by non-contrast computed tomography (NCCT).
Total tubeless Percutaneous nephrolithotomy (PCNL) is a modified surgical method of PCNL surgery, that is, there is no indwelling nephrostomy tube and double-J tube during PCNL surgery. Compared with traditional PCNL surgery, it has the advantages of reducing pain, shortening operation time and reducing operation cost. Since this procedure was first performed in 2004, several randomized clinical studies have verified the safety and efficacy of total tubeless PCNL. Conventional total tubeless PCNL surgery requires the patient to first undergo retrograde transurethral ureteroscopic insertion of the ureteral catheter in the lithotomy position, and then change the patient to the prone position. However, a large number of literature reports and the surgical experience of PCNL in the past 20 years tell the investigators that the reverse insertion of ureteral catheter can cause many recent surgical complications.The study planned to perform the operation in the prone position without reverse insertion of a ureteral catheter in the total tubular PCNL surgery.
Percutaneous nephrolithotomy(PCNL) is a surgical method for upper urinary calculi. The advent of tubeless PCNL (without indwelling nephrostomy tube) has been proved to be safe and effective in reducing postoperative discomfort, shortening hospitalization time and reducing hospitalization costs. Traditional tubeless PCNL usually involves retrograde insertion of the ureteral catheter, which may cause many ureteral related surgical complications. However, there are few reports on tubeless PCNL without reverse ureteral catheter insertion. The goal of this study is to explore the safety and effectiveness of the tubeless PCNL without reverse ureteral catheter insertion.
The data of the randomized controlled experimental research were collected at Atatürk University Health Application and Research Hospital Urology Clinics between November 2021 and May 2022. The study sample consisted of 122 patients (61 in the training group, 61 in the control group) who were selected by the simple random sampling method and met the research inclusion criteria.
Overall stone clearance with endoscopic retrograde cholangiopancreatography (ERCP) for pancreatic duct stones is a amjor problem, especially bigger size stones. After ERCP failure, surgery was the only option but patients not suitable for surgery were treated through stenting. But had to undergo multiple ERCPs and show lower success rate. Recently, SpyGlass and extracorporeal shock wave lithotripsy (ESWL) have been applied for the treatment of huge stones. The present study aims to compare the efficacy and safety outcomes of SpyGlass-guided lithotripsy and ESWL procedures for the removal of pancreatic duct stones.