[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100633160":3},{"organization":4,"armGroups":7,"interventions":18,"overallOfficials":24,"centralContacts":25,"locations":31,"responsibleParty":51,"collaborators":24,"id":55,"slug":56,"hasResults":57,"nctId":58,"briefTitle":59,"officialTitle":60,"acronym":24,"eligibilityCriteria":61,"healthyVolunteers":57,"sex":62,"minAge":63,"maxAge":64,"enrollmentInfo":65,"targetDuration":24,"studyType":68,"phases":69,"briefSummary":71,"conditions":72,"keywords":24,"overallStatus":34,"whyStopped":24,"lastUpdateSubmitDate":74,"lastUpdatePostDateStruct":75,"startDateStruct":78,"completionDateStruct":80,"leadSponsor":82,"locationsCount":83},{"fullName":5,"class":6},"Beni-Suef University","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"(Early ESWL): ESWL within 7-14 days after PCNL","EXPERIMENTAL","Patients receive extracorporeal shock wave lithotripsy (ESWL) within 7-14 days after percutaneous nephrolithotomy (PCNL) for treatment of residual renal stones ≤15 mm. Standard ESWL protocol is applied with a maximum of 3 sessions.",[13],"Procedure: Extracorporeal shock wave lithotripsy (ESWL)",{"label":15,"type":10,"description":16,"interventionNames":17},"(Delayed ESWL): ESWL after 3-4 weeks.","Patients receive extracorporeal shock wave lithotripsy (ESWL) 3-4 weeks after percutaneous nephrolithotomy (PCNL) for treatment of residual renal stones ≤15 mm. Standard ESWL protocol is applied with a maximum of 3 sessions.",[13],[19],{"type":20,"name":21,"description":22,"armGroupLabels":23,"otherNames":24},"PROCEDURE","Extracorporeal shock wave lithotripsy (ESWL)","Extracorporeal shock wave lithotripsy (ESWL) is performed using a standardized protocol for treatment of residual renal stones ≤15 mm after percutaneous nephrolithotomy (PCNL). All patients are treated using the same lithotripter model with standardized energy settings and shock frequency according to EAU guidelines. Sedation is administered as needed. A maximum of three ESWL sessions is allowed. Follow-up imaging is performed to assess stone clearance.",[15,9],null,[26],{"name":27,"role":28,"phone":29,"phoneExt":24,"email":30},"Mahmoud Abdallah Mahmoud, lecturer of urology","CONTACT","+2001155361979","mahmoud.abdalla@med.bsu.edu.eg",[32],{"facility":33,"status":34,"city":35,"state":36,"zip":37,"country":38,"countryCode":39,"cosmosGeoPoint":40,"geoPoint":45,"contacts":46},"Beni-Suef university hospital","RECRUITING","Banī Suwayf","Beni-Suef Governrate","62511","Egypt","EG",{"type":41,"coordinates":42},"Point",[43,44],31.09785,29.07441,{"lat":44,"lon":43},[47],{"name":48,"role":28,"phone":49,"phoneExt":24,"email":50},"Doaa Mohamed Khalil, Lecturer","+0201152091011","drm_abdallah_88@yahoo.com",{"type":52,"investigatorFullName":53,"investigatorTitle":54,"investigatorAffiliation":5,"oldNameTitle":24,"oldOrganization":24},"PRINCIPAL_INVESTIGATOR","Mahmoud Abdallah","lecturer of urology Beni-Suef university hospital","100633160","early-vs-delayed-extracorporeal-shock-wave-lithotripsy-for-residual-stones-after-percutaneous-nephrolithotomy-100633160",false,"NCT07523074","Early vs Delayed Extracorporeal Shock Wave Lithotripsy for Residual Stones After Percutaneous Nephrolithotomy","Optimum Time for Extracorporeal Shock Wave Lithotripsy for Residual Stones After Percutaneous Nephrolithotomy: A Prospective Comparative Randomized Study","Inclusion Criteria:\n\n* Age 18-70 years.\n* Single or multiple residual renal stones ≤15 mm after PCNL.\n* Normal renal function (serum creatinine \\\u003C1.5 mg\u002FdL).\n* No active UTI.\n\nExclusion Criteria:\n\n* Bleeding disorders or anticoagulant therapy.\n* Obstructed drainage or active sepsis.\n* Stones \\>15 mm or requiring secondary PCNL.","ALL","18 Years","70 Years",{"count":66,"type":67},476,"ESTIMATED","INTERVENTIONAL",[70],"NA","Residual renal stone fragments remain a common clinical issue following percutaneous nephrolithotomy (PCNL), with reported incidence ranging from 10% to 30%. These fragments may act as a nidus for recurrent stone formation, infection, or obstruction, necessitating further intervention. Extracorporeal shock wave lithotripsy (ESWL) is widely used as a non-invasive treatment option for such residual stones; however, the optimal timing of ESWL after PCNL remains unclear.\n\nEarly application of ESWL may enhance stone clearance before fragment embedding or encrustation occurs, but it could be associated with increased risk of bleeding or infection due to incomplete renal healing. Conversely, delayed ESWL allows for better tissue recovery but may permit stone growth or persistence of symptoms.\n\nThis prospective randomized comparative study aims to evaluate the optimal timing of ESWL after PCNL in patients with residual renal stones ≤15 mm. Eligible patients will be randomized into two groups: early ESWL (within 7-14 days after PCNL) and delayed ESWL (after 3-4 weeks). The primary outcome is the stone-free rate at 3 months, while secondary outcomes include complication rates, pain scores, renal function changes, and the need for additional interventions.\n\nThe results of this study are expected to provide evidence-based guidance on the ideal timing of ESWL following PCNL to maximize efficacy and minimize complications.",[73],"Nephrolithiasis","2026-04-05",{"date":76,"type":77},"2026-04-13","ACTUAL",{"date":79,"type":77},"2025-12-02",{"date":81,"type":67},"2026-12",{"name":5,"class":6},1]