Kidney Stone Blockage: Best Drainage Method Before Removal
Part of Kidney & urinary, Women’s health & pregnancy clinical trials.
This study compares two ways to drain urine when a kidney stone completely blocks the ureter (the tube from kidney to bladder) in patients with only one working kidney. After your kidney recovers, doctors will remove the stone using a minimally invasive camera procedure.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are 18 years or older
- You have a single kidney stone (6–20 mm) blocking your upper ureter and causing complete urine blockage (anuria)
- You have only one functioning kidney (either by birth or due to prior loss/removal)
- The stone is confirmed by a CT scan without contrast dye
- You are a candidate for flexible ureteroscopy (a minimally invasive camera procedure to remove the stone)
- You have no signs of septic shock, unstable vital signs, or need for emergency dialysis at the time of screening
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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