An interventional study of flexible ureteroscope urolithiasis in Ureter Injury, Urolithiasis; Lower Urinary Tract and Efficacy, Self, sponsored by Ningbo No. 1 Hospital. Recruiting at 1 site in China. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2025-05-23.
Sponsored by Ningbo No. 1 Hospital · Not applicable, Interventional, and Treatment
Comparing the Efficiency, Effectiveness, and Safety of fURS lithotripsy with Similar RESDs in the Treatment of Upper Urinary Tract Stones.
Comparing the Efficiency, Effectiveness, and Safety of fURS lithotripsy with Similar RESDs in the Treatment of Upper Urinary Tract Stones.
253 studies on the registry are indexed under Urolithiasis; 67 are open to participants now.
This study's planned enrollment of 206 is above the median of 100 across 182 interventional studies indexed under Urolithiasis.
Browse Urolithiasis studies →Ningbo No. 1 Hospital is the lead sponsor of 59 studies on the registry; 12 are open to participants now.
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Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
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 .
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.
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
7.5Fr disposable electronic flexible ureteroscope combine with 10Fr distally deflectable ureteral access sheath.
Procedure: flexible ureteroscope urolithiasis
9.0Fr disposable electronic flexible ureteroscope combine with 12Fr distally deflectable ureteral access sheath.
Procedure: flexible ureteroscope urolithiasis
Using flexible ureteroscope combine with urethral access sheath to treatment urolithiasis
Success rate of ureteral access sheath insertion
Proportion of successful ureteral implantation, success rate = number of successful cases/total number of cases
Time frame: From enrollment to completion of surgery
The condition of ureter injury
The ureter was observed at exit of the ureteroscope and graded according to Traxer's proposed grading system.
Time frame: 24 hours
Stone clearance rate
Residual stones less than 4 mm are considered to be free of residual stones.
Time frame: up to 8 weeks.
Operation time
The duration of the operation from start to finish.
Time frame: 24 hours
The incidence of surgical complications
The occurrence of postoperative fever, urogenic sepsis and septic shock
Time frame: 7 days
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Ningbo No. 1 Hospital