Stent versus no stent after ureteroscopy for ureteral stones
Prospective Randomized Study on the Necessity of Postoperative Stenting After Ureteroscopy (URS) for Ureteral Stones.
This study will see if leaving a double-J stent in after ureteroscopy reduces postoperative pain and complications compared with not placing a stent in adults treated for ureteral stones.
Quick facts
| Phase | Not applicable |
|---|---|
| Study type | Interventional |
| Enrollment | 60 (estimated) |
| Ages | 18 Years and up |
| Sex | All |
| Sponsor | Kantonsspital Baden Academic / other |
| Locations | 1 site (Baden) |
| Trial ID | NCT07283003 on ClinicalTrials.gov |
What this trial studies
Adults undergoing ureteroscopy for ureteral stone removal will be assigned to either receive a double-J ureteral stent after the procedure or to have no stent placed. Postoperative pain, stent-related urinary symptoms, and complication rates such as colic or infection will be tracked, with pain recorded using standardized measures and a pain-tracking app. The trial compares the necessity of routine stenting against potential harms from stent discomfort to determine whether routine placement can be safely omitted in selected patients. Results will inform whether avoiding routine stents improves patient comfort without increasing risk.
Who should consider this trial
Good fit: Adults (18+) scheduled for ureteroscopy and stone removal who have provided informed consent and meet pre-stenting criteria are ideal candidates.
Not a fit: Patients with complex ureteral conditions, impacted stones, a solitary kidney, significant renal stones (>3 mm), prior ureteral surgeries (other than endoscopic stone treatments), or pregnancy are unlikely to benefit from omission of a stent.
Why it matters
Potential benefit: If successful, the study could reduce unnecessary stent placements and related discomfort while keeping complication rates low, improving postoperative quality of life.
How similar studies have performed: Previous studies have shown mixed results; avoiding routine stenting has been safe in selected uncomplicated cases but overall evidence remains limited.
Eligibility criteria
Show full inclusion / exclusion criteria
Inclusion Criteria: * Age 18 years or older * Patients with ureteral stones scheduled for ureteroscopy (URS) and stone removal * Previous pre-stenting * Informed Consent as documented Exclusion Criteria: * Complex ureteral conditions (e.g., known ureteral strictures) * Impacted stones * Solitary kidney * Patients with significant renal stones (\>3mm) * Previous ureteral surgeries (except endoscopic stone treatments) * Pregnancy or suspected pregnancy
Where this trial is running
Baden
- Kantonsspital Baden AG — Baden, Switzerland (Recruiting)
Study contacts
- Principal investigator: Lukas John Hefermehl, PD Dr. med. — Kantonsspital Baden AG
How to participate
- Review the eligibility criteria above with your treating physician.
- Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
- Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.