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Stone;Renal clinical trials

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NCT ID: NCT04594161 Completed - Kidney Diseases Clinical Trials

Effectiveness of Drainage by PCN vs. JJ in Patients With Symptoms of Obstructive Kidney Disease Caused by Urolithiasis

STONE
Start date: July 15, 2020
Phase: N/A
Study type: Interventional

To investigate the effectiveness of percutaneous nephrostomy catheter placement versus retrograde double J catheter placement in patients with symptoms of obstructive kidney disease (with either infection and/or pain and/or kidney function deterioration) caused by urolithiasis.

NCT ID: NCT03567421 Completed - Stone, Kidney Clinical Trials

Ureteral Stenting After Ureteroscopy for Stone Treatment, A Global Perspective on Indications and Outcomes

Start date: June 7, 2018
Phase:
Study type: Observational [Patient Registry]

Background: The exit strategy after ureteroscopy for stone treatment remains a topic for discussion. Current EAU guidelines on urolithiasis state that postoperative stenting is indicated in patients at increased risk of postoperative complications. Stenting is not considered necessary in all other cases, and after uncomplicated procedures. Objective: To analyse the postoperative ureteral stenting strategy in clinical practice looking at the indication, type of stents used and the duration of stenting after ureteroscopy for stone treatment. Furthermore, the investigators will examine in what setting the stents are being removed postoperatively. Study design: This study is a prospective, observational, international, multicentre registry study executed by uCARE. Study population: All patients >18 years with a ureter or renal stone who are planned for ureteroscopic treatment by semi-rigid and/or flexible ureteroscopy are eligible for this study.

NCT ID: NCT03526458 Completed - Surgery Clinical Trials

Clinical Trial Evaluating the Efficiency of Holmium Laser Settings on Urinary Stones

Start date: July 30, 2019
Phase: N/A
Study type: Interventional

The primary objective of this study is to compare the time to acceptable stone fragmentation during clinical use of the holmium laser when using energy settings 0.2J vs 0.8J. The hypothesis is that holmium laser energy settings 0.8J will require less time than lower energy settings 0.2J for fragmenting urinary stones. The clinical practice is to treat urinary stones until the stone is reduced to fragments ≤ 2 mm in size. This is determined by using the laser fiber which is 273 microns to visually estimate the size of the resultant fragments as described by Patel et al, J Endo 2014. Investigators will standardize the effect of stone size by creating a ratio of stone size to treatment time. In this study, the frequency is set at 15Hz. Thus, the study contains two arms: 0.2J&15Hz, and 0.8J&15Hz. Patients will be randomized into the two groups by the ratio of 1:1.