Weill Medical College of Cornell University
Placement of a ureteral stent at the end of ureteroscopy is commonly performed in endourology. The purpose of this study is to determine whether ureteral stents whose lengths are calibrated to a participant's specific ureteral length based on imaging are better tolerated than one-size-fits-all variable length ureteral stents. The investigators hypothesize that ureteral stent lengths calibrated to the ureteral length of each participant will be better tolerated.
Inclusion Criteria: 1. Male or female age 18-80 years 2. Urolithiasis requiring ureteroscopic management with ureteral stent placement 3. CT scan showing evidence of upper tract urolithiasis 4. Negative pre-operative urine culture 5. No symptoms of urinary tract infection Exclusion Criteria: 1. Known urinary tract anatomical abnormality, reconstructed urinary system, or congenital anomaly 2. Ureteral stent inserted within the last 31 days 3. History of peptic ulcer disease, symptomatic benign prostatic hyperplasia, interstitial cystitis, chronic pelvic pain syndrome, neurogenic lower urinar…
Placement of variable length ureteral stent at the end of ureteroscopy. The variable length stent is a one-size-fits-all stent that measures 22-30cm.
Placement of image-informed length ureteral stent at the end of ureteroscopy. The length will be 22cm, 24cm, or 26cm depending on the distance of the renal vein to ureterovesical junction on imaging.
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