Total tubeless percutaneous nephrolithotomy without a ureteral catheter

A Comparative Study of Retrograde Ureteral Catheter Insertion or Not in Total Tubeless Percutaneous Nephrolithotomy

Not applicable Interventional The First Affiliated Hospital of University of South China · NCT05578807

This study is testing a new way to perform kidney stone surgery without using a ureteral catheter to see if it leads to fewer complications and a quicker recovery for patients.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment100 (estimated)
Ages18 Years to 80 Years
SexAll
SponsorThe First Affiliated Hospital of University of South China Academic / other
Locations1 site (Hengyang, Hunan)
Trial IDNCT05578807 on ClinicalTrials.gov

What this trial studies

This clinical trial investigates a modified surgical technique for total tubeless percutaneous nephrolithotomy (PCNL) that eliminates the need for retrograde insertion of a ureteral catheter. The study aims to compare this new approach with conventional total tubeless PCNL in terms of postoperative complications, stone-free rates, operation time, length of hospital stay, and medical costs. It is a single-center, single-blind, randomized trial involving 100 subjects, who will be assigned to either the experimental group or the control group. The trial is expected to provide insights into the safety and efficacy of this innovative surgical method.

Who should consider this trial

Good fit: Ideal candidates for this study are patients with kidney stones suitable for PCNL surgery, specifically those with stones less than 35 mm in diameter and minimal hydronephrosis.

Not a fit: Patients with infectious calculi, severe cardiac or pulmonary issues, or previous surgeries on the affected side are unlikely to benefit from this study.

Why it matters

Potential benefit: If successful, this approach could lead to reduced pain and shorter recovery times for patients undergoing kidney stone surgery.

How similar studies have performed: Previous studies have shown the safety and efficacy of total tubeless PCNL, but this specific approach of avoiding ureteral catheter insertion is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* patients with kidney stones who met the indications for PCNL surgery.
* the maximum diameter of calculi was less than 35 mm.
* the width of hydronephrosis effusion was less than 25mm.

Exclusion Criteria:

* patients with infectious calculi confirmed by preoperative CT examination and blood biochemical indexes.
* Patients with severe cardiac and pulmonary insufficiency, coagulation dysfunction and other obvious surgical contraindications.
* Patients with previous history of PCNL surgery on the affected side or nephrotomy.
* Patients with indwelling double J tube or nephrostomy tube before operation.
* Patients with renal trauma or congenital anomalies of urinary system.

Where this trial is running

Hengyang, Hunan

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Nephrolithotomy, PercutaneousKidney Calculi
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.