Comparing Different Diameter fURSs With Similar RESDs for the Treatment of Upper Urinary Tract Stones

Ningbo No. 1 Hospital

Status: Enrolling

Conditions: Ureter Injury; Efficacy, Self; Urolithiasis; Lower Urinary Tract

Treatments: Procedure: flexible ureteroscope urolithiasis

Study type: Interventional

Funder types: Other

Identifiers

NCT06987760

MNWK202401

Details and patient eligibility

About

Comparing the Efficiency, Effectiveness, and Safety of fURS lithotripsy with Similar RESDs in the Treatment of Upper Urinary Tract Stones.

Full description

Comparing the Efficiency, Effectiveness, and Safety of fURS lithotripsy with Similar RESDs in the Treatment of Upper Urinary Tract Stones.

Enrollment: 206 estimated patients

Sex: All

Ages: 18 to 80 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• 1.Patients with kidney stones or upper ureteral stones with a cumulative diameter of less than 3 cm are selected for ureteral soft lens holmium laser lithotripsy.

2.Age 18 to 80 years old, gender unlimited. 3.The subjects have no mental illness or language dysfunction, can understand the situation of the study and can sign informed consent.

Exclusion criteria

• 1.Patients with a history of ureteral stenosis or who have undergone open or laparoscopic ureteral or renal lithotomy.

  2.Patients with fever one week before surgery 3.Pregnant women and menstruating patients. 4.Patients with combined systemic disease or inability to tolerate anesthesia. 5.Patients undergoing simultaneous surgery for bilateral upper urinary tract stones.

  6.Patients with ureteral stent indwelling before surgery. 7.In patients with severe hydronephrosis, the separation of the renal collecting system is greater than 4 cm.

  8.Patients with renal anatomic malformations such as polycystic kidney, horseshoe kidney, and ectopic kidney.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Factorial Assignment

Masking: Single Blind

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206 participants in 2 patient groups

7.5Fr fURS and 10Fr UAS

Experimental group

Description:

7.5Fr disposable electronic flexible ureteroscope combine with 10Fr distally deflectable ureteral access sheath.

Treatment:

Procedure: flexible ureteroscope urolithiasis

9.0Fr fURS and 12Fr UAS

Active Comparator group

Description:

9.0Fr disposable electronic flexible ureteroscope combine with 12Fr distally deflectable ureteral access sheath.

Treatment:

Procedure: flexible ureteroscope urolithiasis