Patient Positioning for Treatment of Proximal Ureteral Stones (NCT07601932) | Clinical Trial Compass
RecruitingNot Applicable
Patient Positioning for Treatment of Proximal Ureteral Stones
United States54 participantsStarted 2026-05-21
Plain-language summary
Ureteroscopic management of proximal ureteral stones presents technical challenges including stone retropulsion, prolonged operative time, and conversion to intrarenal treatment. Reverse Trendelenburg positioning has been shown to reduce proximal stone migration and operative time in ureteral stones, while the T-tilt position improves intrarenal stone clearance. The optimal strategy for proximal ureteral stones (treating stones in situ using reverse Trendelenburg versus pushing stones into the kidney followed by intrarenal treatment in T-tilt) remains unknown.
This randomized controlled trial compares these two strategies, with primary focus on operative time as a measure of procedural efficiency.
A total of 54 patients (27 per arm) will be enrolled at Mount Sinai West.
Who can participate
Age range
18 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria:
* 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 criteria:
* 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
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Total operative time
Timeframe: Immediately postoperatively on the day of surgery