[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100640697":3},{"organization":4,"armGroups":7,"interventions":20,"overallOfficials":25,"centralContacts":29,"locations":25,"responsibleParty":35,"collaborators":25,"id":39,"slug":40,"hasResults":41,"nctId":42,"briefTitle":43,"officialTitle":44,"acronym":25,"eligibilityCriteria":45,"healthyVolunteers":41,"sex":46,"minAge":47,"maxAge":25,"enrollmentInfo":48,"targetDuration":25,"studyType":51,"phases":52,"briefSummary":54,"conditions":55,"keywords":57,"overallStatus":62,"whyStopped":25,"lastUpdateSubmitDate":63,"lastUpdatePostDateStruct":64,"startDateStruct":67,"completionDateStruct":69,"leadSponsor":71,"locationsCount":25},{"fullName":5,"class":6},"Lütfi Kırdar City Hospital","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Aspiration-assisted ureteral access sheath","EXPERIMENTAL","Patients will undergo retrograde intrarenal surgery using an aspiration-assisted ureteral access sheath.",[13],"Device: Aspiration-assisted ureteral access sheath",{"label":15,"type":16,"description":17,"interventionNames":18},"Standard ureteral access sheath","ACTIVE_COMPARATOR","Patients will undergo retrograde intrarenal surgery using a standard ureteral access sheath.",[19],"Device: Standard ureteral access sheath",[21,26],{"type":22,"name":9,"description":23,"armGroupLabels":24,"otherNames":25},"DEVICE","Patients undergoing retrograde intrarenal surgery using an aspiration-assisted ureteral access sheath",[9],null,{"type":22,"name":15,"description":27,"armGroupLabels":28,"otherNames":25},"Standard ureteral access sheath used during retrograde intrarenal surgery.",[15],[30],{"name":31,"role":32,"phone":33,"phoneExt":25,"email":34},"Cengiz Çanakcı","CONTACT","+905454738043","cengizcanakci@hotmail.com",{"type":36,"investigatorFullName":37,"investigatorTitle":38,"investigatorAffiliation":5,"oldNameTitle":25,"oldOrganization":25},"SPONSOR_INVESTIGATOR","Cengiz Canakci, MD","Assos. Prof.","100640697","evaluation-of-renal-injury-after-rirs-using-shear-wave-elastography-100640697",false,"NCT07615452","Evaluation of Renal Injury After RIRS Using Shear-Wave Elastography","Assessment of Renal Parenchymal Damage Following Retrograde Intrarenal Surgery Using Shear-Wave Elastography","Inclusion Criteria:\n\n* Age ≥18 years\n* Patients undergoing RIRS for renal stones\n* Stone size between \\\u003C 20 mm\n* Negative urine culture\n\nExclusion Criteria:\n\n* Active urinary tract infection\n* Congenital renal anomalies\n* Solitary kidney\n* Chronic kidney disease\n* Previous PCNL or open surgery\n* Ureteral stricture disease","ALL","18 Years",{"count":49,"type":50},60,"ESTIMATED","INTERVENTIONAL",[53],"NA","This study aims to evaluate changes in renal parenchyma following retrograde intrarenal surgery (RIRS) using shear-wave elastography. Renal elastography measurements will be performed in patients undergoing RIRS for kidney stones on the preoperative day, on the first postoperative day, and on the seventh postoperative day. Postoperative pain scores, perioperative outcomes, stone-free status and complications will also be assessed.",[56],"Kidney Stone",[58,59,60,61],"Retrograde intrarenal surgery","Shear-wave elastography","Kidney injury","kidney stone","NOT_YET_RECRUITING","2026-05-31",{"date":65,"type":66},"2026-06-03","ACTUAL",{"date":68,"type":50},"2026-06-01",{"date":70,"type":50},"2026-11",{"name":37,"class":6}]