Impact of Renal Anatomy on Shock Wave Lithotripsy Outcomes for Lower Pole Kidney Stones
Urolithiasis, Urinary Lithiasis, Kidney Calculi
About this trial
This is an interventional treatment trial for Urolithiasis focused on measuring Tomography, Urinary Lithiasis, Kidney Calculi
Eligibility Criteria
Inclusion Criteria:
> 17 year-old. Symptomatic single stone of 5 to 20mm located in the lower pole of the kidney. Informed consent signed.
Exclusion Criteria:
Patients with congenital kidney abnormalities (i.e. horseshoes kidney, pelvic kidney, ectopic kidney), patients with ureteral stent (i.e. Double J stent) in the ipsilateral kidney of the stone in study, patients with chronic kidney disease (glomerular filtration rate <60 mL/minute/1.73m2 measured by the equation "Modification of Diet in Renal Disease"), and patients with absolute contraindication to SWL (i.e. coagulopathy, pregnancy, urinary tract infection, or abdominal aneurysm >4.0cm).
Sites / Locations
- University of Sao Paulo
Arms of the Study
Arm 1
Experimental
Shockwave lithotripsy (SWL)
All patients will be submitted to a noncontrast computed tomography before to shockwave lithotripsy (SWL). Patients will be submitted to SWL under the following conditions: outpatient, general anesthesia, 3000 impulses, rate of 90/min, discharged from hospital in the same day with alpha-blocker (doxazosin) during 30 days.