[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100598830":3},{"organization":4,"armGroups":7,"interventions":18,"overallOfficials":25,"centralContacts":29,"locations":38,"responsibleParty":56,"collaborators":24,"id":60,"slug":61,"hasResults":62,"nctId":63,"briefTitle":64,"officialTitle":65,"acronym":24,"eligibilityCriteria":66,"healthyVolunteers":62,"sex":67,"minAge":68,"maxAge":24,"enrollmentInfo":69,"targetDuration":24,"studyType":72,"phases":73,"briefSummary":75,"conditions":76,"keywords":24,"overallStatus":41,"whyStopped":24,"lastUpdateSubmitDate":79,"lastUpdatePostDateStruct":80,"startDateStruct":83,"completionDateStruct":85,"leadSponsor":87,"locationsCount":88},{"fullName":5,"class":6},"Cairo University","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Using FANS","ACTIVE_COMPARATOR","After the successful induction of anesthesia, the lithotomy position will be adopted. Ureteroscopy will be used with the aid of a safety guidewire to evaluate the condition of the ureter. The serial dilation of the ureter using ureteral dilators up to 14 Fr . The FANS will be then inserted into the ureter under the guidance of the safety guidewire. The FANS tip will be positioned in the renal pelvis or calyces near the location of the stone.\n\nThe FANS will be connected to a vacuum device, and the negative pressure will be applied. The actual intraoperative negative pressure value will be adjusted by the urologist through a pressure adjustment vent as needed. The irrigation volume was set using peristaltic pumps. Lithotripsy will be conducted using the holmium: yttrium aluminum garnet laser applying the dusting technique of laser lithotripsy. During lithotripsy, the FANS will allow us to retrieve most of the fragmented stone particles by application of the suction pressure. All cases w",[13],"Procedure: FURS",{"label":15,"type":10,"description":16,"interventionNames":17},"Using traditional UAS","The method of anesthesia, patient positioning, ureteral dilation, and lithotripsy were the same as those used in the FANS group.\n\nFor the traditional UAS group, the end of the UAS will be positioned underneath the ureteropelvic junction (UPJ). The irrigation volume is applied using peristaltic pumps. The dusting technique of laser lithotripsy will be applied to the stones.\n\nAll cases will be stented using JJ stents with the suitable size.",[13],[19],{"type":20,"name":21,"description":22,"armGroupLabels":23,"otherNames":24},"PROCEDURE","FURS","FURS using traditional UAS \\& FANS",[9,15],null,[26],{"name":27,"affiliation":5,"role":28},"Ahmed Yehia Abdelaziz Mohammed, Professor of urology","PRINCIPAL_INVESTIGATOR",[30,35],{"name":31,"role":32,"phone":33,"phoneExt":24,"email":34},"Yosseif Ammar, MBBCH","CONTACT","201226912630","yosefelhousseiny@gmail.com",{"name":27,"role":32,"phone":36,"phoneExt":24,"email":37},"201229793766","mailto:dr_ahmedyehia81@yahoo.com",[39],{"facility":40,"status":41,"city":42,"state":24,"zip":24,"country":43,"countryCode":44,"cosmosGeoPoint":45,"geoPoint":50,"contacts":51},"Cairo university hospitals","RECRUITING","Cairo","Egypt","EG",{"type":46,"coordinates":47},"Point",[48,49],31.24967,30.06263,{"lat":49,"lon":48},[52],{"name":53,"role":32,"phone":54,"phoneExt":24,"email":55},"Faculty of Medicine - Cairo University","+20223647545","website@kasralainy.edu.eg",{"type":57,"investigatorFullName":58,"investigatorTitle":59,"investigatorAffiliation":5,"oldNameTitle":24,"oldOrganization":24},"SPONSOR_INVESTIGATOR","Yosseif elhousseiny ammar ahmed","Principal investigator","100598830","a-comparative-study-between-the-usage-of-flexible-and-navigable-suction-ureteral-access-sheath-versus-traditional-access-sheath-in-retrograde-intrarenal-surgeries-100598830",false,"NCT07076589","A Comparative Study Between the Usage of Flexible and Navigable Suction Ureteral Access Sheath Versus Traditional Access Sheath in Retrograde Intrarenal Surgeries","A Comparative Study Between the Usage of Flexible and Navigable Suction Ureteral Access Sheath (FANS) Versus Traditional Access Sheath in RIRS : Randomized Controlled Trial","Inclusion Criteria:\n\n* Age ≥14 years old in patients not known to have stone forming medical conditions.\n* Renal stones diameter of ≤2 cm confirmed by CT with all types of configurations (branching \\& non-branching).\n* Non - recurrent cases with no history of previous open renal surgeries or PCNL with normal renal anatomy.\n* Patients with non - infected urine analysis.\n\nExclusion Criteria:\n\n* Patients with abnormal urinary tract anatomy (such as horseshoe kidney or ileal conduit).\n* Patients with medical conditions promoting stone formation (hyperparathyroidism - gout).\n* Patients with history of stones on the same side with previous open surgical intervention or PCNL .\n* Patients with e-GFR \\\u003C 60 ml \u002F min.\n* Patients with uncontrolled urinary tract infection.\n* Patients with health or other factors that are absolute contraindications to RIRS.\n* Patients who are unable to understand or complete trial documentation.","ALL","14 Years",{"count":70,"type":71},80,"ESTIMATED","INTERVENTIONAL",[74],"NA","A comparative study between the Usage of Flexible and Navigable Suction Ureteral Access Sheath (FANS) versus Traditional Access sheath in RIRS : Randomized controlled trial .",[77,78],"Stones, Kidney","Ureter Stones","2026-03-08",{"date":81,"type":82},"2026-03-10","ACTUAL",{"date":84,"type":82},"2025-06-01",{"date":86,"type":71},"2026-03-03",{"name":58,"class":6},1]