View clinical trials related to Kidney Calculi.
Filter by:This prospective, randomized study is aimed to assess the efficacy and safety of paravertebral block compared to epidural anesthesia for percutaneous nephrolithotomy. The investigators suppose that paravertebral block is not inferior in controlling the perioperative pain for percutaneous nephrolithotomy compared to epidural block.
The primary objective of this study would be to determine whether utilization of this technology improves adherence to recommended increases in hydration for stone forming patients with low urine volume relative to standard techniques such as education and reading materials. We hypothesize that the addition and utilization of the smart water bottle to standard recommendations will lead to measurable increases 24 hour urine output for affected patients.
Prospective single centre study aiming at validating a conditional imaging strategy for diagnosis of suspected kidney stone. Consecutive Emergency department patients referred to the medical imaging department for exploration of a suspected acute uncomplicated renal colic will undergo the following interventions : systematic plain abdominal Xray, systematic ultrasonography and systematic unenhanced CT (with a reduced dose scan), in addition to clinical examination and assessment of body mass index and the Sex, Timing, Origin, Nausea, Erythrocytes (STONE) clinical prediction score for symptomatic stone. Patients will be followed up at 1 month to record the need for urologic intervention and its type. The performances of different conditional imaging strategy for the diagnosis of suspected renal colic will be assessed retrospectively. The conditional strategies tested will be based on the patient's stone score and BMI and targeted use of combined plain X-ray and ultrasonography and/or unenhanced CT. The reference diagnosis for renal colic will be made according to the finding of a ureteral stone or indirect signs of urolithiasis at unenhanced CT.
Summary 1. Purpose and Objective: The purpose of this study is to test the feasibility of rapid acquisition of point of care 3D ultrasound in obtaining abdominal and/or pelvic images. The study will use a newly developed acquisition method and post-processing technique to create three dimensional image models of the abdomen and/or pelvis. 2. Study activities and population group. The study population will be a convenience sample of patients of any age presenting to the Emergency Department with complaints necessitating a clinical abdominal and/or pelvic imaging. The study intervention includes acquisition of research ultrasound images, which will not be used for clinical care, and comparison of these images with clinically obtained images. Other clinical data such as surgical and pathology reports will also be reviewed. 3.Data analysis and risk/safety issues. This is a pilot study intended to determine feasibility and to refine image reconstruction algorithms. Research images will be compared to clinical images. Comparison of research images with final diagnosis will also occur. The research intervention, an ultrasound exam, has no known safety risks. The only risk to subjects is loss of confidentiality. This study is observational, not interventional, because the experimental ultrasound will be performed in all subjects and will not be used in the clinical care of patients (consequently, will not have the opportunity to affect clinical outcomes). Experimental images will be reviewed after completion of clinical care and will not be provided to the clinicians caring for the subjects. The investigators are not measuring the effect of the ultrasound examination on the subjects' outcomes.
Patients undergoing percutaneous nephrolithotomy (PNL) suffer from acute postoperative pain, despite a multimodal analgesic regime. We hypothesize that active (ropivacaine) transmuscular quadratus lumborum (TQL) block will significantly reduce postoperative opioid consumption and pain following PNL operation compared with placebo (saline) TQL block. The aim of this study is to investigate the effect of ultrasound-guided (USG) TQL block concurrent with a multimodal analgesic regime compared to the multimodal analgesic regime alone (and placebo TQL block) in a randomized and placebo controlled design.
We want to compare the effect of lignocaine 2 % gel, Naproxen sodium and their combination on the pain control during extracorporial shock wave lithotripsy for renal stones.
The aim of this research is to use a controlled laboratory setting to determine whether bacteria isolated from kidney stones of patients play a role in the formation of non-infectious kidney stones. It is well known that struvite stones are associated with active bacterial infection, however the role of bacteria in the formation of non-infection stones (like calcium oxalate) is not well characterized and there are theories that bacteria are involved in the making of these stones.
Thiazide diuretics will be more effective in lowering urine calcium excretion if taken at night as compared to the daytime. It will therefore be more effective in reducing kidney stone recurrence in nephrolithiasis patients with elevated urine calcium who are known to have increased risk of kidney stones at night time.
The objective of this study is to evaluate the influence of low-calorie diet on serum and urinary metabolic parameters of obese adults with urinary calculi and lithogenic metabolic abnormalities.
to assess safety, efficacy of Flexible ureteroscopy (FURS) holmium:YAG laser lithotripsy (LL) compared to extracorporeal shockwave lithotripsy (ESWL) in management of lower calyceal stones (LC) stones.