Stent removal helps to spontaneously pass ureteral stones

Not Applicable

• Conditions: reteral stone patients after previous stenting; Urological and Genital Diseases; Ureteral stone patients after previous stenting

• Registration Number: ISRCTN12112914
• Lead Sponsor: Inselspital, Universitätsspital Bern

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2019-08-05
• Last Update Posted: 10 February 2020
• Study Completion: 2023-11-01

Recruitment & Eligibility

• Status: Ongoing
• Sex: All
• Target Recruitment: 202

Inclusion Criteria

1. Ureteral stone
2. Previous stenting
3. Stone still in place
4. Aged over 18 years

Exclusion Criteria

Does not meet inclusion criteria

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
reteral stone-free rate at the time of and 24 hours after double J stent removal. As assessed by patient interview and/or radiological assessment.

Secondary Outcome Measures

Name	Time	Method
<br> Measured continuously throughout trial:<br> 1. Predictors of spontaneous stone passage:<br> 1.1 Stone size (diameter)<br> 1.2 Stone location [proximal, mid- or distal ureter]<br> 1.3 Stone density<br> 1.4 Stent dwell time<br> 1.5 Stone movement while stent indwelling. To assess stone movement, the dislocation of the stone from the initial spot immediately after double J placement was measured and compared to the X-ray pictures before stent removal. Because natural breathing movements of the patient can make evaluation of the exact stone location rather difficult, only stone movement of =5cm is measured and counted as stone movement.<br> 1.6 Patient’s age<br> 1.7 Patient’s gender<br> 2. Adverse events:<br> 2.1 Pain-induced additional use of analgesics<br> 2.2 Urinary tract infection (UTI)<br>