Comparing two types of flexible ureteroscopes for treating kidney stones in children

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study aims to compare the safety and efficacy of two different sizes of single-use flexible ureteroscopes (fURS) for treating upper urinary tract stones in children. The two sizes being evaluated are 6.3 Fr and 8.6 Fr, with a focus on how their outer diameters affect treatment outcomes. The study will involve children under 14 years old who are scheduled for ureteroscopy and laser lithotripsy for kidney stones. By determining the equivalence of these two devices, the research seeks to improve surgical options and outcomes for pediatric patients with urinary stones.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Patients scheduled for ureteroscopy and laser lithotripsy for individual renal stones ranging in size from 5 mm to 20 mm in all intrarenal locations (If there are multiple stones present, the total stone burden in cross section should not exceed 20 mm)
* Patients \< 14 years
* For children younger than 8 years old, the informed consent form is signed by the parents; for children older than 8 years old, the informed consent form is signed by both the parents and the child themselves.

Exclusion Criteria:

* Children with uncontrolled urinary tract infections or coagulation disorders and other contraindications for surgery before the operation.
* Children with severe renal insufficiency, anatomical or functional solitary kidney, known nephrocalcinosis, and other significant comorbidities that are not suitable for participating in the study.
* Children who refuse to participate in this study.
* Any other reason that in the opinion of the investigator would make the participant unsuitable for enrollment in the study.

Where it's running

• Children's hospital, Zhejiang University School of Medicine
  Hangzhou, Zhejiang, China Recruiting

Study contacts

• Principal investigator: Hongbo Liu — The Children's Hospital of Zhejiang University School of Medicine
• Study coordinator: Aimei Ma
• Email: maaimei@zju.edu.cn
• Phone: +86 15888864134

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

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• Fecal Microbiota Transplantation for Kidney Stone Patients

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.