RIRS under local anesthesia for kidney stones
Part of Kidney & urinary, Women’s health & pregnancy clinical trials.
This study looks at how well a procedure called RIRS (a type of keyhole surgery to remove kidney stones using a small camera) works when done with only local anesthesia (numbing medicine) instead of general anesthesia. It may be a good option if you have a 1-4 cm stone in your kidney or upper ureter and are in generally good health.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You have a kidney stone or a stone in the upper part of the ureter that is between 1 cm and 4 cm (about 0.4 to 1.6 inches).
- You are between the ages of 18 and 70.
- Your overall health is good enough to be classified as ASA I, II, or III (a standard measure of fitness for surgery, with I being healthy and III having a serious but not life-threatening condition).
- You do not have stones in the middle or lower ureter that need additional surgery beyond RIRS.
- You do not have any unusual anatomy of your urinary tract, such as a narrowed ureter, a horseshoe kidney, or a duplicated kidney.
- You do not have severe heart, brain, or lung disease, and you are not pregnant.
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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