Patients with a ureteral or kidney stone that causes symptoms, like pain, frequently have small kidney stones that don't cause symptoms. If these small kidney stones are determined to be asymptomatic (not causing any problems or pain), then most urologists will simply remove the symptomatic ureteral stone and leave the additional stones in the kidneys. However, symptomatic kidney stones started as small stones that didn't cause symptoms. This means that the small stones remaining in the patient's kidney may cause problems later. The purpose of our research is to test if removing small stones from the kidney prevents future stone episodes.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
75
Symptomatic stone removal by the surgical procedures called Ureteroscopy or Percutaneous Nephrolithotomy
Asymptomatic kidney stones and symptomatic stone removal by the surgical procedure called Ureteroscopy
Indiana University Health
Indianapolis, Indiana, United States
University of Minnesota
Minneapolis, Minnesota, United States
University of Washington Medical Center Department of Urology
Seattle, Washington, United States
Veterans Administration Puget Sound Heath Care System
Seattle, Washington, United States
Relapse of stone disease on the study side
1. Radiological evidence of significant growth in the size of any pre-existing stone 2. Return for stone removal surgery on the study side 3. Passage of a stone with pain symptoms on the study side resulting in an emergency department visit
Time frame: annually up to 5 years after stone removal surgery
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