[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100623172":3},{"organization":4,"armGroups":7,"interventions":19,"overallOfficials":27,"centralContacts":27,"locations":27,"responsibleParty":28,"collaborators":27,"id":32,"slug":27,"hasResults":33,"nctId":34,"briefTitle":35,"officialTitle":36,"acronym":37,"eligibilityCriteria":38,"healthyVolunteers":33,"sex":39,"minAge":40,"maxAge":27,"enrollmentInfo":41,"targetDuration":27,"studyType":44,"phases":45,"briefSummary":47,"conditions":48,"keywords":51,"overallStatus":55,"whyStopped":27,"lastUpdateSubmitDate":56,"lastUpdatePostDateStruct":57,"startDateStruct":60,"completionDateStruct":62,"leadSponsor":64,"locationsCount":27},{"fullName":5,"class":6},"Mansoura University","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"high power arm","EXPERIMENTAL","will undergo miniPCNL will high power laser setting",[13],"Procedure: mini percutaneous nephrolithotomy",{"label":15,"type":16,"description":17,"interventionNames":18},"low power group","PLACEBO_COMPARATOR","will undergo miniPCNL will low power laser setting",[13],[20],{"type":21,"name":22,"description":23,"armGroupLabels":24,"otherNames":25},"PROCEDURE","mini percutaneous nephrolithotomy","Under fluoroscopic guidance, an 18G Chiba needle is used to access a posterior calyx or the appropriate target calyx). Contrast confirms the collecting system entry.\n\nDilation is performed, typically up to 14-20 Fr. A mini-nephroscope (15 Fr) is inserted through an appropriate sheath. Irrigation is maintained using gravity or low-pressure systems.\n\nHolmium: YAG laser is used for lithotripsy. high pulse power will be capped at 40 W, while low pulse power settings will remain between 10-20 W. Fragments are evacuated via vacuum cleaner effect or basket through the sheath.",[9,15],[26],"miniperc, miniPCNL",null,{"type":29,"investigatorFullName":30,"investigatorTitle":31,"investigatorAffiliation":5,"oldNameTitle":27,"oldOrganization":27},"PRINCIPAL_INVESTIGATOR","Ahmed Elghamry","Resident in urology","100623172",false,"NCT07393178","Efficacy & Safety of High Power vs. Low Power Holmium Laser in Mini-PCNL for Large Renal Stones","High Pulse Power vs. Low Pulse Power Holmium: YAG Laser in Mini-Percutaneous Nephrolithotomy for Management of Renal Stones > 20 mm: A Randomized Controlled Trial","miniPCNL","Inclusion Criteria:\n\n* Age ≥ 18 years\n* Renal Stones \\\u003C 20 mm indicated for intervention (pain, infection, obstructing stone causing hydronephrosis or parenchymal affection)\n* Informed consent obtained\n\nExclusion Criteria:\n\n* Active urinary tract infection\n* Bleeding diathesis\n* Pregnancy\n* Anatomical anomalies impeding access e.g. ectopic malrotated kidneys, crossed fused kidneys...etc.)","ALL","18 Years",{"count":42,"type":43},70,"ESTIMATED","INTERVENTIONAL",[46],"NA","The investigator will compare between holmium laser setting during miniPCNL for renal stones as regard safety \\& efficacy",[49,50],"Renal Stones","Renal Calculi > 2 cm",[52,53,54],"mini-PCNL","holmium-YAG","laser lithotripsy","NOT_YET_RECRUITING","2026-02-04",{"date":58,"type":59},"2026-02-06","ACTUAL",{"date":61,"type":43},"2026-03-15",{"date":63,"type":43},"2027-01-30",{"name":5,"class":6}]