[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"surgical-positioning\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:surgical-positioning":28},{"pageToken":4,"total":5,"offset":6,"count":5,"results":7},null,1,0,[8],{"id":9,"slug":10,"hasResults":11,"nctId":12,"briefTitle":13,"officialTitle":14,"acronym":4,"eligibilityCriteria":15,"healthyVolunteers":11,"sex":16,"minAge":17,"maxAge":18,"enrollmentInfo":19,"targetDuration":4,"studyType":22,"phases":23,"briefSummary":25,"conditions":26,"keywords":33,"overallStatus":37,"whyStopped":4,"lastUpdateSubmitDate":38,"lastUpdatePostDateStruct":39,"startDateStruct":42,"completionDateStruct":44,"leadSponsor":46,"locationsCount":5},"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":20,"type":21},84,"ESTIMATED","INTERVENTIONAL",[24],"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.",[27,28,29,30,31,32],"Percutaneous Nephrolithotomy (PCNL)","Surgical Positioning","Prone Position","Supine Position","Hemodynamic Stability","Nephrolithiasis",[34,29,35,30,36,32],"PCNL","Percutaneous Nephrolithotomy","Hemodynamic stability","RECRUITING","2025-08-16",{"date":40,"type":41},"2025-08-24","ACTUAL",{"date":43,"type":41},"2025-06-01",{"date":45,"type":21},"2025-12-30",{"name":47,"class":48},"Gaziosmanpasa Research and Education Hospital","OTHER_GOV"]