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A randomized controlled trial of intelligent temperature-controlled flexible ureteroscopy combined with thulium fiber laser for the treatment of 2–4 cm kidney stones

A randomized controlled trial of intelligent temperature-controlled flexible ureteroscopy combined with thulium fiber laser for the treatment of 2–4 cm kidney stones

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2600123396
Enrollment
Unknown
Registered
2026-04-26
Start date
2026-04-26
Completion date
Unknown
Last updated
2026-05-04

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

Conditions

Renal calculi

Interventions

Experimental group:Using an intelligent temperature- and pressure-controlled flexible ureteroscope connected to a medical irrigation and suction platform, which monitors in real time and automatically
Control group:Using a conventional flexible ureteroscope, with the assistant manually injecting water to maintain the surgical field, without intelligent pressure- and temperature-control functions. T

Sponsors

Pudong Gongli Hospital,Shanghai University of Medicine & Health Sciences
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 70 Years

Inclusion criteria

Inclusion criteria: 1. Age range: 18 - 70 years old, gender not restricted; 2. The maximum diameter of the stone measured by computed tomography (CT) is between 2 - 4 cm, or the sum of the maximum diameters of the stones is 2 - 4 cm; 3. There was no infection before the operation or the infection has been controlled, and the urine culture was negative.

Exclusion criteria

Exclusion criteria: 1. Patients over 70 years old and pregnant women; 2. Patients with internal kidney infections and those with horseshoe kidneys, kidney transplants; 3. Patients who cannot stop using anticoagulant drugs, have a bleeding tendency, severe cardiac or pulmonary dysfunction, severe spinal or hip deformities, or have anatomical abnormalities in the urinary system that prevent them from undergoing endoscopic surgery.

Design outcomes

Primary

MeasureTime frame
Operation time;Stone clearance rate;

Secondary

MeasureTime frame
Hemoglobin level;Total length of hospital stay;The conditions of ureteral injury, bleeding and infection;Creatinine level;Degree of white blood cell change;

Countries

China

Contacts

Public ContactHe Zhang

Pudong Gongli Hospital,Shanghai University of Medicine & Health Sciences

xyxtpwy@163.com+86 136 6197 8648

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: May 7, 2026