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Active clinical trials for "Urolithiasis"

Results 151-160 of 186

Mineral Water for Prevention of Renal Stones

Calcium Oxalate Urolithiasis

The investigators would like to assess if the intake of high bicarbonate mineral water would not only increase total fluid intake but will also be able to give patients the additional benefit of correcting the urinary abnormalities which may predispose them to stone formation.

Unknown status9 enrollment criteria

Urine Biomarker for Stone Recurrence

Urolithiasis

Despite the advent of treating stones with Extracorporeal Shock Wave Lithotripsy (ESWL) and Percutaneous nephrolithotomy (PCNL), the recurrence rate for renal stones remains high and this may be due to poor compliance of patients with dietary and fluid advice, age, metabolic abnormalities, medicines and the formation of "new stones" from clinically insignificant residual fragments (CIRF). Though some patients become stone-free after ESWL/PCNL or open surgeries, the majority develop "new stones" and it is difficult to predict when these stones will recur until either they have imaging perform or they developed symptoms. However, the use of regular imaging for monitoring will be costly and involve radiation exposure. Therefore, a diagnostic tool is needed to enable the clinician and/or patient to monitor for stone recurrence. In the previous studies, some urine markers were identified that are related to stone formation. The relationship of these urine markers with the recurrence of renal stone will be further explore in this study. Also, potential markers that could predict stone recurrence will be identified, and hence earlier intervention could be offered to patients.

Completed3 enrollment criteria

Management of Fragments During Ureteroscopy

Urinary Stones

The purpose of this study is to study the outcome of patients after ureteroscopy in which all fragments remaining after holmium laser lithotripsy were retrieved compared to those where small, insignificant fragments were left for spontaneous passage.

Completed6 enrollment criteria

Metabolic Workup in Patients Suffering From Kidney Stone Disease and Osteopenia

UrolithiasisRenal Colic1 more

Patients suffering from acute renal colic are evaluated by non contrast computerized tomography with excellent identification rates of urinary stones. The scan also covers the bones of the ribs, spine and pelvis, allowing measurements of the bone density and identifying early osteopenic changes. Bone demineralization is associated with metabolic changes such as hypercalcemia or hypercalcuria. In this study the investigators will look for correlation between kidney stones, osteopenic bone changes and metabolic abnormalities.

Unknown status12 enrollment criteria

Analysis the Relationship Between the Abdomen CT and Outcomes in Acute Urinary Stone Patients

Urinary CalculiEmergency Service1 more

This is an observational study based on retrospectively collected data of ureter stone patients between 2011 and 2014. Aim of study is to determine radiologic findings of non-contrast abdominal computerized tomography as predicting clinical outcomes of suspect ureter stone patients in emergency department (ED).

Completed7 enrollment criteria

Proteomic Study of Urinary Stone Disease

Urinary CalculiHyperoxaluria1 more

Urinary protein levels are not routinely measured in stone patients while there is strong evidence that proteins play a role in the etiology of stones. The purpose of this study is to examine the urinary and serum proteins of stone formers compared to healthy subjects utilizing the high throughput method, Surface Enhanced Laser Desorption/Ionization (SELDI). We hypothesize that there is a unique set of proteins expressed in serum and urine in stone patients that can be detected by SELDI. Ultimately, this will better our understanding of stone disease and help develop new prevention strategies.

Completed34 enrollment criteria

Music During ESWL for Half Treatment

Urolithiasis

The aim of this study is to evaluate if music listening relieves pain and discomfort during Extracorporeal Shock-Waves Lithotripsy (ESWL).

Completed4 enrollment criteria

Position and Predictive Factors of Hypotension in Prone Percutaneous Nephrolithotomy

HypotensionUrolithiasis

This study was designed to investigate the effect of position and predictive factors on hypotension in patients performing percutaneous nephrolithotomy. Patients aged >18 years and ASA I-III who underwent general or regional anaesthesia were included in the study. Percutaneous access was performed in all patients with fluoroscopy in the prone position.

Completed2 enrollment criteria

A Study on the Effection of Potassium Citrate Extended-release Tablets on Urolithiasis Formation...

Urolithiasis

Assess the efficacy and safety of potassium citrate extended-release tablets on Urolithiasis formation or recurrence.

Unknown status13 enrollment criteria

US-Non Contrast Computed Tomography Real-time Fusion for Urinary Stones Follow up

UrolithiasisUreterolithiasis

Urolithiasis is a universal problem, a large part of patients will be affected by multiple stones throughout their lifetime, with estimated recurrence rates of 75% within 20 years. The high recurrence rate requires an increasing amount of imaging follow-up. US-NCCT real-time fusion (Fusion) enables lesion assessment and follow up using both modalities as reference for each other. Our study proposes a novel approach for short term follow up of patients using Fusion instead of repeat NCCT exams. the goal of the study is to create an initial proof of concept that Fusion is effective for follow up of known urinary stones. the study is a prospective study on Patients with an obstructing ureteral stone found on a NCCT. Patients will undergo Fusion (using General Electric Logiq E9) after NCCT. The primary endpoint was the ability to locate the ureteral stone using US with guidance of the NCCT as a "Road Map".

Completed3 enrollment criteria
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