Patient Positioning for Treatment of Proximal Ureteral Stones

This study is looking at the best way to position patients during surgery for kidney stones that are in the upper part of the ureter (the tube connecting the kidney to the bladder). Doctors will compare two positioning methods: the Reverse Trendelenburg Position, where you are tilted with your head down, and the T-Tilt Position, where you are tilted in two directions. The goal is to see which method helps remove all stone fragments more efficiently, mainly by looking at the total time of the surgery. You may be able to join if you are an adult (18 or older) with kidney stones that are 1 cm or larger, or if you have multiple stones, and are scheduled for a specific type of surgery called fURS (flexible ureteroscopy). This study is currently recruiting 54 patients.

Study design
This is a randomized controlled trial comparing two patient positioning strategies during surgery, with 54 participants planned.
What's involved
Not specified in the trial record.
Compensation
Not stated in the trial record.
Follow-up
The primary outcome, total operative time, is measured immediately after surgery on the day of the procedure.

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NCT07601932

Patient Positioning for Treatment of Proximal Ureteral Stones

Recruiting
NAAges 18+InterventionalTreatment
Icahn School of Medicine at Mount Sinai
~54 participants
Updated 2026-06-04 on ClinicalTrials.gov
What's tested:Reverse Trendelenburg PositionT-Tilt Position

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Total operative time
Measured over Immediately postoperatively on the day of surgery
Ureteral Stone
1 sites across 1 states
New York1
  • Mantu Gupta, MD · PRINCIPAL_INVESTIGATOR · Icahn School of Medicine at Mount Sinai

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Eligibility criteria

Inclusion

Adults aged 18 years and older.
Diagnosed with kidney stones and scheduled for fURS.
Stone burden \> 1 cm and/or multiple stones will be eligible.
Able and willing to provide informed consent.

Exclusion

Pregnant persons as determined by pre-operative urine pregnancy test (standard of care at the institution)
Untreated UTI
Patients with urinary anomalies (e.g., urinary diversion, ureteral reconstruction, horseshoe kidney)
Single stone \< 1 cm
  • Total operative timeImmediately postoperatively on the day of surgery

    Operative time will be used to compare procedural efficiency