[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100592002":3},{"organization":4,"armGroups":7,"interventions":19,"overallOfficials":25,"centralContacts":26,"locations":32,"responsibleParty":54,"collaborators":56,"id":62,"slug":63,"hasResults":64,"nctId":65,"briefTitle":66,"officialTitle":67,"acronym":25,"eligibilityCriteria":68,"healthyVolunteers":64,"sex":69,"minAge":70,"maxAge":71,"enrollmentInfo":72,"targetDuration":25,"studyType":75,"phases":76,"briefSummary":78,"conditions":79,"keywords":83,"overallStatus":35,"whyStopped":25,"lastUpdateSubmitDate":87,"lastUpdatePostDateStruct":88,"startDateStruct":91,"completionDateStruct":93,"leadSponsor":95,"locationsCount":96},{"fullName":5,"class":6},"Ningbo No. 1 Hospital","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"7.5Fr fURS and 10Fr UAS","EXPERIMENTAL","7.5Fr disposable electronic flexible ureteroscope combine with 10Fr distally deflectable ureteral access sheath.",[13],"Procedure: flexible ureteroscope urolithiasis",{"label":15,"type":16,"description":17,"interventionNames":18},"9.0Fr fURS and 12Fr UAS","ACTIVE_COMPARATOR","9.0Fr disposable electronic flexible ureteroscope combine with 12Fr distally deflectable ureteral access sheath.",[13],[20],{"type":21,"name":22,"description":23,"armGroupLabels":24,"otherNames":25},"PROCEDURE","flexible ureteroscope urolithiasis","Using flexible ureteroscope combine with urethral access sheath to treatment urolithiasis",[9,15],null,[27],{"name":28,"role":29,"phone":30,"phoneExt":25,"email":31},"Li Fang","CONTACT","+86-13586681743","fanyruo@126.com",[33],{"facility":34,"status":35,"city":36,"state":37,"zip":38,"country":39,"countryCode":40,"cosmosGeoPoint":41,"geoPoint":46,"contacts":47},"The First Affiliated Hospital of Ningbo University","RECRUITING","Ningbo","Zhejiang","315010","China","CN",{"type":42,"coordinates":43},"Point",[44,45],121.54945,29.87819,{"lat":45,"lon":44},[48,51],{"name":49,"role":29,"phone":50,"phoneExt":25,"email":31},"Li Fang, Dr","057487085111",{"name":52,"role":29,"phone":50,"phoneExt":25,"email":53},"Boyang Song, Dr","fyysongboyang@nbu.edu.cn",{"type":55,"investigatorFullName":25,"investigatorTitle":25,"investigatorAffiliation":25,"oldNameTitle":25,"oldOrganization":25},"SPONSOR",[57,60],{"name":58,"class":59},"The First People's Hospital of Fuyang District, Hangzhou City","UNKNOWN",{"name":61,"class":6},"The Central Hospital of Lishui City","100592002","comparing-different-diameter-furss-with-similar-resds-for-the-treatment-of-upper-urinary-tract-stones-100592002",false,"NCT06987760","Comparing Different Diameter fURSs With Similar RESDs for the Treatment of Upper Urinary Tract Stones","Comparing Different Diameter fURSs With Similar RESDs for the Treatment of Upper Urinary Tract Stones - A Randomized Controlled Multi-center Clinical Trials","Inclusion Criteria:\n\n\\- 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.\n\n2.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.\n\nExclusion Criteria:\n\n* 1.Patients with a history of ureteral stenosis or who have undergone open or laparoscopic ureteral or renal lithotomy.\n\n  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.\n\n  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.\n\n  8.Patients with renal anatomic malformations such as polycystic kidney, horseshoe kidney, and ectopic kidney.","ALL","18 Years","80 Years",{"count":73,"type":74},206,"ESTIMATED","INTERVENTIONAL",[77],"NA","Comparing the Efficiency, Effectiveness, and Safety of fURS lithotripsy with Similar RESDs in the Treatment of Upper Urinary Tract Stones.",[80,81,82],"Ureter Injury","Urolithiasis; Lower Urinary Tract","Efficacy, Self",[84,85,86],"Urolithiasis","Ratio of Endoscope-Sheath Diameter","Flexible ureteroscope","2025-05-22",{"date":89,"type":90},"2025-05-23","ACTUAL",{"date":92,"type":90},"2025-03-19",{"date":94,"type":74},"2026-12-30",{"name":5,"class":6},1]