Stone free rate: Endoscopic vs. low-dos CT control after flexible URS for nephrolithiasis > 10 mm

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00007707

Enrollment

Registered

2015-01-15

Start date

2015-02-15

Completion date

Unknown

Last updated

2026-06-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

N20

Interventions

Group 1: Patients who have been declared as stone free endoscopically after ureterorenoscopy and had additional CT control for the assessment of stone free rate

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Patients who had ureterorenoscopic stone extraction of kidney Stones > 10 mm and who have been declared as Stone free after the final endoscopic control. Additional they Need to have a control CT

Exclusion criteria

Exclusion criteria: Patients that don't fulfill the inclusion criteria

Design outcomes

Primary

Measure	Time frame
Stone free rate in the CT control	—

Secondary

Measure	Time frame
Rate of missed residual fragments with endoscopic control	—

Countries

Germany

Contacts

Public ContactKonrad Wilhelm

Universtitätsklinikum FreiburgDepartment ChirurgieKlinik für Urologie

konrad.wilhelm@uniklinik-freiburg.de0761-27028930

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Jun 27, 2026