calculus
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. aged 16 to 80 years old male and female; 2. it has performed urinary calculi surgery, and need to retain the F6 ureteral stent tube; 3. the ureter has no obvious stricture; 4. The subjects had no mental illness or language dysfunction, understood the situation of the study and signed informed consent.
Exclusion criteria
Exclusion criteria: 1. ureter has obvious stricture, parallel stricture and balloon dilatation; 2. Indwelling non-F6 inner or outer stent tube; 3. the stent tube indwelling time is greater than 37 days or less than 23 days; 4. this double J tube extremely intolerant; 5. participants in other clinical trials in the past 3 months.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| encrustation; | — |
Countries
China
Contacts
The Fifth Affiliated Hospital of Guangzhou Medical University