[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100568709":3},{"organization":4,"armGroups":7,"interventions":19,"overallOfficials":26,"centralContacts":30,"locations":36,"responsibleParty":49,"collaborators":25,"id":53,"slug":54,"hasResults":55,"nctId":56,"briefTitle":57,"officialTitle":58,"acronym":25,"eligibilityCriteria":59,"healthyVolunteers":55,"sex":60,"minAge":61,"maxAge":62,"enrollmentInfo":63,"targetDuration":25,"studyType":66,"phases":67,"briefSummary":69,"conditions":70,"keywords":73,"overallStatus":39,"whyStopped":25,"lastUpdateSubmitDate":78,"lastUpdatePostDateStruct":79,"startDateStruct":82,"completionDateStruct":84,"leadSponsor":86,"locationsCount":87},{"fullName":5,"class":6},"Namik Kemal University","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Patients with conventional UAS being used in their RIRS operations","ACTIVE_COMPARATOR","The patient population will be selected from cases determined by randomization and used with UAS without an aspiration (conventional) during RIRS.",[13],"Procedure: Retrograde intrarenal surgery",{"label":15,"type":16,"description":17,"interventionNames":18},"Patients with vacuum assisted UAS being used in their RIRS operations","EXPERIMENTAL","The patient population will be selected from cases determined by randomization and used with UAS with an aspiration and flexible tip, different from the conventional one during RIRS.",[13],[20],{"type":21,"name":22,"description":23,"armGroupLabels":24,"otherNames":25},"PROCEDURE","Retrograde intrarenal surgery","Flexible optic devices and lasers fragment kidney stones during this operation. In this surgery, an ureteral access sheath is recommended to be used.",[9,15],null,[27],{"name":28,"affiliation":5,"role":29},"Cenk M. Yazici, Professor","STUDY_DIRECTOR",[31],{"name":32,"role":33,"phone":34,"phoneExt":25,"email":35},"Mehmet F. Şahin, Ass. Professor","CONTACT","+905555511871","mfatihsahin@gmail.com",[37],{"facility":38,"status":39,"city":40,"state":41,"zip":25,"country":42,"countryCode":25,"cosmosGeoPoint":43,"geoPoint":48,"contacts":25},"Tekirdag Namık Kemal University","RECRUITING","Tekirdağ","Turkey","Turkey (Türkiye)",{"type":44,"coordinates":45},"Point",[46,47],27.51101,40.9781,{"lat":47,"lon":46},{"type":50,"investigatorFullName":51,"investigatorTitle":52,"investigatorAffiliation":5,"oldNameTitle":25,"oldOrganization":25},"PRINCIPAL_INVESTIGATOR","Mehmet Fatih Şahin","Assistant Professor","100568709","comparison-of-vacuum-assisted-and-conventional-ureteral-access-sheath-in-retrograde-intrarenal-surgery-100568709",false,"NCT06684756","Comparison of Vacuum-Assisted and Conventional Ureteral Access Sheath in Retrograde Intrarenal Surgery","The Comparison of the Efficacy and Safety of Vacuum-Assisted and Conventional Ureteral Access Sheath in Retrograde Intrarenal Surgery: A Randomized Controlled Prospective Multicenter Study","Inclusion Criteria:\n\n* Patients over 18 years of age\n* Patients below 85 years of age\n* Patients with 11-13 FR conventional\u002Fvacuum-assisted ureteral access sheath (UAS) during retrograde intrarenal surgery\n\nExclusion Criteria:\n\n* Patients with non-sterile preoperative urine culture\n* Patients with renal anatomic anomalies\n* Patients with a solitary (single) kidney\n* Patients with insufficient data\n* Patients under the age of 18, above the age of 85\n* Patients without an UAS during RIRS\n* Patients without 11-13Fr UAS during RIRS","ALL","18 Years","85 Years",{"count":64,"type":65},150,"ESTIMATED","INTERVENTIONAL",[68],"NA","This study aims to compare the efficacy and safety, the ratio of stone-free rates, and complications of two types of access sheaths used in retrograde intrarenal surgery to treat upper urothelial stones. The access sheath types are those with vacuum aspiration and the conventional ones.",[71,72],"Kidney Calculi","Kidney Stones",[74,75,76,77],"kidney stone","retrograde intrarenal surgery","ureteral access sheath","vacuum assisted","2026-07-07",{"date":80,"type":81},"2026-07-08","ACTUAL",{"date":83,"type":81},"2024-10-01",{"date":85,"type":65},"2026-12-01",{"name":5,"class":6},1]