[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100603619":3},{"organization":4,"armGroups":7,"interventions":19,"overallOfficials":30,"centralContacts":35,"locations":41,"responsibleParty":57,"collaborators":25,"id":61,"slug":62,"hasResults":63,"nctId":64,"briefTitle":65,"officialTitle":66,"acronym":25,"eligibilityCriteria":67,"healthyVolunteers":63,"sex":68,"minAge":69,"maxAge":70,"enrollmentInfo":71,"targetDuration":25,"studyType":74,"phases":75,"briefSummary":77,"conditions":78,"keywords":83,"overallStatus":44,"whyStopped":25,"lastUpdateSubmitDate":87,"lastUpdatePostDateStruct":88,"startDateStruct":91,"completionDateStruct":93,"leadSponsor":95,"locationsCount":96},{"fullName":5,"class":6},"Gaziosmanpasa Research and Education Hospital","OTHER_GOV",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Prone Position","EXPERIMENTAL","Patients in this group will undergo percutaneous nephrolithotomy (PNL) in the prone position. The procedure begins with ureteral catheter placement in lithotomy position, followed by prone positioning for renal access under C-arm fluoroscopic guidance. Stone fragmentation will be performed using pneumatic or ultrasonic lithotripters, and nephrostomy placement will be completed according to standard protocol.",[13],"Procedure: Prone Position Percutaneous Nephrolithotomy",{"label":15,"type":10,"description":16,"interventionNames":17},"Supine Position","Patients in this group will undergo percutaneous nephrolithotomy (PNL) in the Galdakao-modified Valdivia supine position. Following general anesthesia, the ipsilateral side will be elevated 20-30°, with the ipsilateral leg extended and the contralateral leg abducted. Ureteral catheter placement will be followed by renal access under C-arm fluoroscopy. Stone fragmentation and removal will be performed using the same standardized lithotripsy and irrigation protocols as in the prone group.",[18],"Procedure: Supine Position Percutaneous Nephrolithotomy (Galdakao-modified Valdivia)",[20,26],{"type":21,"name":22,"description":23,"armGroupLabels":24,"otherNames":25},"PROCEDURE","Prone Position Percutaneous Nephrolithotomy","Patients in this arm will undergo percutaneous nephrolithotomy (PNL) in the prone position. The procedure begins with ureteral catheter placement in lithotomy position, followed by prone positioning for renal access under C-arm fluoroscopic guidance. Stone fragmentation will be performed using pneumatic or ultrasonic lithotripters, and nephrostomy placement will be completed according to standard protocol.",[9],null,{"type":21,"name":27,"description":28,"armGroupLabels":29,"otherNames":25},"Supine Position Percutaneous Nephrolithotomy (Galdakao-modified Valdivia)","Patients in this arm will undergo percutaneous nephrolithotomy (PNL) in the Galdakao-modified Valdivia supine position. Following general anesthesia, the ipsilateral side will be elevated 20-30°, with the ipsilateral leg extended and the contralateral leg abducted. Ureteral catheter placement will be followed by renal access under C-arm fluoroscopy. Stone fragmentation and removal will be performed using the same standardized lithotripsy and irrigation protocols as in the prone group.",[15],[31],{"name":32,"affiliation":33,"role":34},"Burak Arslan, CLINICAL PROFESSOR OF UROLOGY","Gaziosmanpaşa Training and Research Hospital, Urology Department, Istanbul, Türkiye","STUDY_DIRECTOR",[36],{"name":37,"role":38,"phone":39,"phoneExt":25,"email":40},"ARİF BURAK KEÇEBAŞ, UROLOGY CLINIC DOCTOR","CONTACT","+90 5412659978","arifkecebas@gmail.com",[42],{"facility":43,"status":44,"city":45,"state":25,"zip":46,"country":47,"countryCode":25,"cosmosGeoPoint":48,"geoPoint":53,"contacts":54},"Gaziosmanpaşa Training and Research Hospital","RECRUITING","Istanbul","34275","Turkey (Türkiye)",{"type":49,"coordinates":50},"Point",[51,52],28.94966,41.01384,{"lat":52,"lon":51},[55],{"name":56,"role":38,"phone":39,"phoneExt":25,"email":40},"Arif burak keçebaş, doctor",{"type":58,"investigatorFullName":59,"investigatorTitle":60,"investigatorAffiliation":5,"oldNameTitle":25,"oldOrganization":25},"PRINCIPAL_INVESTIGATOR","Arif Burak Keçebaş","UROLOGY DOCTOR","100603619","hemodynamic-effects-of-surgical-position-in-prone-vs-supine-percutaneous-nephrolithotomy-100603619",false,"NCT07138872","Hemodynamic Effects of Surgical Position in Prone vs. Supine Percutaneous Nephrolithotomy","The Effect of Surgical Position on Hemodynamics in Percutaneous Nephrolithotomy Performed in Prone and Supine Positions","Inclusion Criteria:\n\n* ASA physical status I-III\n* Presence of renal calculi indicated for PNL\n\nExclusion Criteria:\n\n* Pregnancy\n* Uncontrolled coagulopathy\n* Previous renal surgery\n* Severe cardiac, pulmonary, or neurological disease\n* Preoperative urinary tract infection (non-sterile urine culture)\n* Surgery duration \\\u003C60 minutes or \\>120 minutes\n* Preoperative blood transfusion\n* Multiple access tracts","ALL","18 Years","80 Years",{"count":72,"type":73},84,"ESTIMATED","INTERVENTIONAL",[76],"NA","This prospective, randomized controlled study evaluates the hemodynamic effects of prone and supine positions during percutaneous nephrolithotomy (PNL) for large kidney stones. Surgical position may influence intraoperative and postoperative hemodynamic stability. Prone positioning can increase intrathoracic pressure and reduce venous return, whereas supine positioning may provide greater hemodynamic stability. A total of 84 patients will be randomized to undergo PNL in prone or supine positions. Primary outcomes include changes in hemodynamic parameters during surgery. Results may guide surgical position selection, especially in patients with potential hemodynamic risk.",[79,80,9,15,81,82],"Percutaneous Nephrolithotomy (PCNL)","Surgical Positioning","Hemodynamic Stability","Nephrolithiasis",[84,9,85,15,86,82],"PCNL","Percutaneous Nephrolithotomy","Hemodynamic stability","2025-08-16",{"date":89,"type":90},"2025-08-24","ACTUAL",{"date":92,"type":90},"2025-06-01",{"date":94,"type":73},"2025-12-30",{"name":5,"class":6},1]