View clinical trials related to Nephrolithiasis.
Filter by:This study seeks to examine the effects of a heterozygous mutation of the AGXT gene in a stone forming population on endogenous oxalate production. Participants will consume a controlled low-oxalate diet and provide blood and urine samples to measure the amount of oxalate in their bodies. Subjects will then be administered an intravenous (IV) load of glycolate, providing additional blood and urine samples afterwards to measure any increase in oxalate levels.
Calcium oxalate stone, the most common type worldwide, has a recurrence rate of around 50% in ten years. Therefore, identifying the underlying pathophysiological aspects via metabolic evaluation and suggestions for medical & dietary prophylaxis in calcium stone patients is of upmost importance. However, one of the greatest problem with metabolic evaluation and subsequent therapeutic advices is the patient compliance. Therefore, it is important to identify factors related to patient compliance for metabolic evaluation and medical & dietary prophylaxis in calcium stone patients
The purpose of this study is to assess whether certain beverages can increase urinary citrate levels in healthy individuals with no history of kidney disease.
The impact of different frequencies on pattern of disintegration of renal stones
Management of nephrolithiasis is evolving rapidly, and various minimally-invasive urological procedures are currently available for treating patients with renal stones, including extracorporeal shockwave lithotripsy (ESWL), flexible ureteroscopy (f-URS) and miniaturised percutaneous nephrolithotomy (mini-PCNL). Despite being the only truly-non-invasive, outpatient procedure, stone-free rates (SFRs) of ESWL are lower than both mini-PCNL and f-URS. Furthermore, ESWL has several limitations, such as pregnancy; uncorrected coagulopathy;aortic aneurism; severe obesity; large stone burdens (>2cm); stones with high densities (>970/1000 Hounsfield units); ESWL-resistant stone compositions; lower calyceal stones with unfavourable anatomical criteria; and stones in calyceal diverticula; Morbidities of the conventional PCNL are significantly minimised by using less access diameters in PCNL while providing comparable SFRs. Additionally, Mini and Micro PCNL result in shorter hospital stay and higher tubeless rates compared to conventional PCNL. Flexible ureteroscopy has been increasingly used as a primary modality for treatment of renal stones with significantly lower complication rates than PCNL and mini-PCNL in terms of less bleeding and transfusion rates, shorter hospital stay and less postoperative pain. Additionally, f-URS is the only treatment modality of nephrolithiasis that can be safely and effectively used in patients with bleeding tendency, as well as pregnant women; moreover, its outcomes are not affected by obesity. Nevertheless, its poor durability and high costs remain major limitations for f-URS, especially in developing countries.
Frankincense, or olibanum, is the oleogum resin that is harvested from several different trees, an aromatic resin obtained from trees of the genus Boswellia. The word frankincense is derived from the ancient French name "frankincense," meaning "pure incense." Frankincense is also known in Arabic as "luban,". Luban has been reported to have anti-inflammatory, sedative, antibacterial, and anti-cancer activities. The aim of the present study is to treat renal stones with Luban (Boswellia) given as capsules of active oils. This is a clinical Phase I & II (Safety, Efficacy) double-blind simple-randomized controlled treatment trial, where 100 participants with renal stones (50 Radiopaque and 50 Radiolucent stones) will be included in the study and divided between two treatment groups: Standard treatment (Uralyt-U) and new treatment (Luban). Participants with stone size less than 10 mm will be include; and participants with renal pathology or comorbidities (DM, CKD, multiple renal cysts, renal tumors) will be excluded. The outcome measures of the study will be: the primary end point (effect) is reduction of stone size by 50% or complete disappearance after 1 years of treatment; and the secondary end point (toxicity) is the participants intolerance of the treatment or development of side effects. If this study proves an effect of Luban on renal stones it will be an evolution in the management of renal stones by a natural, simple, harmless easily available method.
Background: Standard-PCNL was considered as the first choice for ≥2 cm renal stones. Miniaturized technique Mini-PCNL has also been implicated in the past two decades. Recently, Super-mini PCNL (SMP) was introduced to treated ≤2.5cm renal stone. The miniaturized techniques seemed to take a longer operating time and have risk of getting infectious complications. However, there is no high quality of evidence showing that which kind of PCNL is best or what kind of patients is suitable for standard-PCNL, mini-PCNL or SMP. Objective: To compare the efficacy and safety of Standard-PCNL (≥24Fr), Mini-PCNL (12-20Fr) and SMP(10-14Fr) for the treatment of ≥2 cm renal stones Study design: This study is a prospective, observational, international, multicenter registry cohort study Study population: All patients ≥14 years with ≥2 cm renal stone who are planned for Standard-PCNL, Mini-PCNL or SMP are eligible for this study.
This study evaluates the safety and efficacy of the suctioning flexible ureteroscopy(SF-URS) with automatic control of renal pelvic pressure for the treatment of upper urinary calculi using a prospective, randomized design. Half of participants will receive suctioning flexible ureteroscopy with automatic control of renal pelvic pressure, while the other half participants will receive retrograde intrarenal surgery using the classic flexible ureteroscopy.
This study evaluates the safety and efficacy of the novel tip-flexible semi-rigid ureterorenoscope for the treatment of renal calculi using a prospective, randomized multicentre trial design. Half of participants will receive retrograde intrarenal surgery using the tip-flexible semi-rigid ureterorenoscope, while the other half participants will receive retrograde intrarenal surgery using the classic flexible ureteroscope.
The purpose of this study is to determine whether new software processing of ultrasound images can improve detection and size determination of kidney stones.