Evaluating Postoperative Pain After Ureterorenoscopy.
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: No Double-J catheter insertion, Double-J catheter.
- Who it may be relevant to
- Registry conditions: Ureteral Stones. Basic parameters: from 18 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Switzerland
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Prospective Randomized Study on the Necessity of Postoperative Stenting After Ureteroscopy (URS) for Ureteral Stones.
Overview
Comparison of routine postoperative stenting versus no stenting after ureterorenoscopy for ureteral stones to assess the necessity and impact on complication risk.
Detailed description
After a ureteroscopy (URS) for the removal of ureteral stones, a double-J stent is routinely placed. Among other measures, this is intended to prevent pain caused by ureteral swelling, small residual fragments, blood clots, and potential drainage obstructions, which could lead to colic or fever. However, the evidence supporting the benefit of this practice is limited. At the same time, many patients report discomfort due to the stent (e.g., flank pain, dysuria, frequent urination, hematuria), which can significantly impact their quality of life.
Interventions
- Other No Double-J catheter insertion
Ureterorenoscopy without consecutive DJ-stent insertion. - Procedure Double-J catheter
Transurethral catheter insertion
Primary outcome measures
- Postoperative pain assessment [Time frame: up to 4 weeks postoperative]
Secondary outcome measures (7)
- Length of stay [days] [Time frame: During the hospital stay, on average 2 days]
- Pain Assessment [Time frame: pre-/peri-/postoperative]
- Pain Management [Time frame: pre-/peri-/postoperative]
- Secondary need of double-J catheter [Time frame: up to 4 weeks postoperative]
- Procedure related readmissions [Time frame: up to 4 weeks postoperative]
- Procedure related reoperations [Time frame: up to 4 weeks postoperative]
- Comprehensive Complication Index [Time frame: up to 4 weeks postoperative]
Eligibility 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
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- Randomized
- Model
- Parallel assignment
- Masking
- Open label
- Primary purpose
- Treatment
Study locations
Switzerland · 1 center
- Kantonsspital Baden AG — Baden
Identifiers
NCT: NCT07283003 · 2025-00665