[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-studies-list:{\"conditionNormalized\":\"percutaneous-nephrolithotomy-pcnl\",\"overallStatus\":[\"RECRUITING\",\"AVAILABLE\",\"NOT_YET_RECRUITING\"],\"orderBy\":\"LastUpdateSubmitDate:desc\",\"size\":25,\"offset\":0}":3,"health-study-condition:percutaneous-nephrolithotomy-pcnl":25},{"pageToken":4,"total":5,"offset":6,"count":5,"results":7},null,3,0,[8,44,79],{"id":9,"slug":10,"hasResults":11,"nctId":12,"briefTitle":13,"officialTitle":14,"acronym":4,"eligibilityCriteria":15,"healthyVolunteers":11,"sex":16,"minAge":17,"maxAge":4,"enrollmentInfo":18,"targetDuration":4,"studyType":21,"phases":4,"briefSummary":22,"conditions":23,"keywords":26,"overallStatus":31,"whyStopped":4,"lastUpdateSubmitDate":32,"lastUpdatePostDateStruct":33,"startDateStruct":36,"completionDateStruct":38,"leadSponsor":40,"locationsCount":43},"100646037","predictors-of-epidural-depth-in-percutaneous-nephrolithotomy-and-model-development-100646037",false,"NCT07697053","Predictors of Epidural Depth in Percutaneous Nephrolithotomy and Model Development","Analysis of Factors Influencing Epidural Depth in Patients Undergoing Percutaneous Nephrolithotomy and Development of a Predictive Model","Inclusion Criteria:\n\n* Age ≥ 18 years\n* Successful epidural puncture and catheter placement using the midline approach\n* Clear documentation of puncture level and puncture depth in the anesthesia record\n\nExclusion Criteria:\n\n* Dural puncture during anesthesia (including those who subsequently had a successful repuncture)\n* Use of the paramedian approach for epidural puncture\n* Uncertain epidural anesthesia effect requiring combined general anesthesia\n* Incomplete clinical data","ALL","18 Years",{"count":19,"type":20},3278,"ESTIMATED","OBSERVATIONAL","Accurate estimation of epidural depth is critical for safe epidural anesthesia during percutaneous nephrolithotomy (PCNL). Although various imaging modalities can predict epidural depth, they increase healthcare burden and are not always feasible in emergency or bedside settings. Identifying simple, easily obtainable clinical parameters-such as sex, age, and body mass index (BMI)-for predicting epidural depth has become a research priority. However, systematic investigations specifically targeting the Chinese population remain scarce. This retrospective study aims to identify independent factors influencing epidural depth in PCNL patients and to develop simple, level-specific predictive models for different puncture sites, thereby providing a practical reference for clinical epidural anesthesia.",[24,25],"Epidural Anesthesia","Percutaneous Nephrolithotomy (PCNL)",[27,28,29,30,25],"epidural anesthesia","epidural depth","predictive model","body mass index","NOT_YET_RECRUITING","2026-07-13",{"date":34,"type":35},"2026-07-16","ACTUAL",{"date":37,"type":20},"2026-06-30",{"date":39,"type":20},"2026-08-31",{"name":41,"class":42},"Tongji Hospital","OTHER",1,{"id":45,"slug":46,"hasResults":11,"nctId":47,"briefTitle":48,"officialTitle":49,"acronym":4,"eligibilityCriteria":50,"healthyVolunteers":11,"sex":16,"minAge":17,"maxAge":51,"enrollmentInfo":52,"targetDuration":4,"studyType":54,"phases":55,"briefSummary":57,"conditions":58,"keywords":64,"overallStatus":68,"whyStopped":4,"lastUpdateSubmitDate":69,"lastUpdatePostDateStruct":70,"startDateStruct":72,"completionDateStruct":74,"leadSponsor":76,"locationsCount":43},"100603619","hemodynamic-effects-of-surgical-position-in-prone-vs-supine-percutaneous-nephrolithotomy-100603619","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","80 Years",{"count":53,"type":20},84,"INTERVENTIONAL",[56],"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.",[25,59,60,61,62,63],"Surgical Positioning","Prone Position","Supine Position","Hemodynamic Stability","Nephrolithiasis",[65,60,66,61,67,63],"PCNL","Percutaneous Nephrolithotomy","Hemodynamic stability","RECRUITING","2025-08-16",{"date":71,"type":35},"2025-08-24",{"date":73,"type":35},"2025-06-01",{"date":75,"type":20},"2025-12-30",{"name":77,"class":78},"Gaziosmanpasa Research and Education Hospital","OTHER_GOV",{"id":80,"slug":81,"hasResults":11,"nctId":82,"briefTitle":83,"officialTitle":84,"acronym":4,"eligibilityCriteria":85,"healthyVolunteers":11,"sex":16,"minAge":17,"maxAge":86,"enrollmentInfo":87,"targetDuration":4,"studyType":54,"phases":89,"briefSummary":90,"conditions":91,"keywords":4,"overallStatus":31,"whyStopped":4,"lastUpdateSubmitDate":92,"lastUpdatePostDateStruct":93,"startDateStruct":95,"completionDateStruct":97,"leadSponsor":99,"locationsCount":4},"100587947","erector-spinae-block-vs-conventional-analgesia-for-postoperative-analgesia-in-pcnl-100587947","NCT06935006","Erector Spinae Block vs Conventional Analgesia for Postoperative Analgesia in PCNL","Sonographic Guided Erector Spinae Plane Block Versus Conventional Analgesia After Percutaneous Nephrolithotomy a Comparative Randomized Study","Inclusion Criteria:\n\n* ASA 1 to ASA 2 18 to 60 years\n\nExclusion Criteria:\n\n* patient refusal Significant neurological , psychiatric or neuromascular disease Drug abuse Pregnant or lactating women Suspected coagulopathy Morbid obesity Known allergy to some medications Septicaemia and local infection at block site","60 Years",{"count":88,"type":20},50,[56],"50 adult patients scheduled for percutaneous nephrolithotomy in Sohag university hospitals will be devided in two groups one of them will receive Sonographic guided erector spinae plane block using 20 ml volume of bupivacaine 0.25 percent and the other will receive conventional analgesia of 0.1 mg\u002Fkg IV morphine",[25],"2025-04-11",{"date":94,"type":35},"2025-04-18",{"date":96,"type":20},"2025-05-01",{"date":98,"type":20},"2026-05-01",{"name":100,"class":42},"Sohag University"]