Evaluating Postoperative Pain After Ureterorenoscopy.

NCT ID: NCT07283003

Last Updated: 2026-01-08

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

2026-01-31

Study Completion Date

2027-09-30

Brief Summary

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Comparison of routine postoperative stenting versus no stenting after ureterorenoscopy for ureteral stones to assess the necessity and impact on complication risk.

Detailed Description

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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.

Conditions

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Ureteral Stones

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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No-Stent Group

No postoperative double-J catheter following ureterorenoscopy.

Group Type ACTIVE_COMPARATOR

No Double-J catheter insertion

Intervention Type OTHER

Ureterorenoscopy without consecutive DJ-stent insertion.

Stent Group

Routine postoperative double-J catheter insertion following ureterorenoscopy.

Group Type ACTIVE_COMPARATOR

Double-J catheter

Intervention Type PROCEDURE

Transurethral catheter insertion

Interventions

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No Double-J catheter insertion

Ureterorenoscopy without consecutive DJ-stent insertion.

Intervention Type OTHER

Double-J catheter

Transurethral catheter insertion

Intervention Type PROCEDURE

Eligibility Criteria

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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
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Kantonsspital Baden

OTHER

Sponsor Role collaborator

Lukas J Hefermehl

OTHER

Sponsor Role lead

Responsible Party

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Lukas J Hefermehl

Principal Investigator

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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Lukas John Hefermehl, PD Dr. med.

Role: PRINCIPAL_INVESTIGATOR

Kantonsspital Baden AG

Locations

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Kantonsspital Baden AG

Baden, , Switzerland

Site Status RECRUITING

Countries

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Switzerland

Facility Contacts

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Céline Carole Kurt

Role: primary

+41 56 486 30 83

Lukas John Hefermehl, PD Dr. med.

Role: backup

+41 56 486 30 92

Other Identifiers

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2025-00665

Identifier Type: -

Identifier Source: org_study_id

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