View clinical trials related to Ureteral Calculi.
Filter by:As a first treatment option for small-size ureteric stones, α-blockers are now being used for medical expulsive therapy (MET) instead of invasive procedures. There is high evidence of the therapeutic benefit of α-blockers in the treatment of Distal ureteric stone (DUS); also endorsed by international guidelines. However, limited data is available worldwide, on the effect of silodosin to treat DUS. A multi-center study is needed to confirm the efficacy and safety of therapy.
Urolithiasis is one of the most common urological diseases. The risk of stone disease ranges between 5% and 12% worldwide. Ureteric stones account for ≈20% of all urinary tract stones and >70% of the ureteric stones are located in the lower third of the ureter, i.e., distal ureteric stones (DUS). The colicky-type pain in the ureter, an increase in proximal peristalsis through activation of intrinsic ureteral pacemakers may contribute to the perception of pain. Muscle spasm increased proximal peristalsis, local inflammation, irritation, and oedema at the site of obstruction may contribute to the development of pain through chemoreceptor activation and stretching of submucosal free nerve endings. α-adrenergic blockers, anti-inflammatory drugs, antihistaminic and calcium channel blockers, which have a relaxant effect on the ureteric smooth musculature. The presence of histamine receptors in the ureter have been presented in various studies. The histamine-1 (H1) receptors have been shown to have a wide distribution Histamine, which is secreted from the mast cells, causes strong peristaltic contractions in the ureter. alpha adrenoreceptor antagonists (i.e., tamsulosin) have been employed in the treatment of ureteric colic due to smooth muscle relaxation so their potential ability to increase stone passage, reduce pain medication use and reduce urologic interventions. According to the currently accepted view, renal colic management starts with NSAI drugs also NSAI has role in decrease inflammation and oedema and increase expulsion rate . in this study we will compare the use of alpha blocker versus alpha blocker and antihistaminic in management of acute renal colic prevent pain recurrence and increase expulsion rate of ureteric stone ≤ 1cm, with analgesic use in case of acute stage.
Holmium laser is the current gold standard for lithotripsy on urinary lithiasis, while Thulium is brand new. The latter has been released in July 2020 in Europe, and only in-vitro studies have been published. The aim of this study is to compare the stone free rate in ureteroscopy, for all consecutive patients treated with laser fragmentation, between both Holmium and Thulium lasers. The costs and complications will also be studied.
Randomized comparison of patient outcomes following fluoroscopic guided PCNL versus ultrasound-guided PCNL.
Ureteral stone is a common disease with high prevalence and recurrence rate in Taiwan. Taiwan is located in subtropical zone, where urolithiasis is commonly seen. A national survey in Taiwan determined that 9.6% of the population suffered stones throughout their lifetime. Symptoms of ureteral stone include renal colic, hematuria, and urinary tract infection. Without proper treatment, ureteral stone could lead to renal function impairment such as acute kidney injury (AKI) or chronic kidney disease (CKD). There are several treatment options for ureteral stone, such as ureteroscopic lithotripsy (URSL), flexible urteroscopic lithotripsy (F-URSL), percutaneous nephrolithotomy (PCNL), extracorporeal shock wave lithotripsy (ESWL), and Medical expulsive therapy (MET). However, there are only few minutes from diagnosis of ureteral stone to possible treatment options explanation. It's difficult for patients to well understand all the details of possible treatments under such circumstances. Therefore, we design a patient decision aid (PDA) for unilateral ureteral stone to help patients understand all the treatment options. The PDA is standardized, written in plain language and patient-centered, with pictures attached.
Précis: Randomised control trial to evaluate safety and efficacy of intraluminal injection of high pH-high concentration of a long-acting local anesthetic and long-acting glucocorticoid in the ureter after ureteroscopy. Objectives: To evaluate a novel method to ameliorate post-ureteroscopy pain in all patients (with and without stents) Endpoints: Primary endpoint: mean visual analog pain scale (VAS) post-operatively starting at 1 hour, 4 hours, 8 hours, 24 hours and 7 days post-procedure (minimum of 3 VAS scores). VAS pain, ureteral stent symptoms and analgesic requirement will be assessed at different points during this time period. Secondary endpoint: Postoperative Nausea/Vomiting (PONV), safety of intraluminal injection of high concentration alkalinized local anaesthetic solution by comparing adverse events between placebo and treatment arms. In addition, rehospitalisation rates and postoperative length of stay will be compared between the three groups. Population: 150 adult patients undergoing ureteroscopy for ureteric stone disease stratified into negative ureteroscopy and those treated for a stone with or without stent insertion postoperatively Number of Sites: Tallaght Hospital Study Duration: 8 months
To estimate the efficacy of tamsulosin in: A - Expulsion of lower ureteric stones from10-15 mm diameters (primary goal). B - Pain relief and hyronephrosis improvement (secondary goal).
The purpose of this study is to determine whether new software processing of ultrasound images can improve detection and size determination of kidney stones.
The purpose of this study is to evaluate Efficacy and Safety of oral intake of Naftopidil 75mg once daily for the improving clearance of ureteral or renal stones.
SWL is widely used in the treatment of patients with renal and ureteral calculi. Several factors determine the success of extracorporeal shockwave lithotripsy (SWL) for kidney stones: stone size, stone location within the collecting system, stone type, and the SWL machine used. Moreover, in some cases it is very difficult to focus on the stone because of its movement as a results of breathing. In order to prevent stone movement we want to use a bronchial blocker, processing a selective ventilation of the opposite side of stone location.