[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100637001":3},{"organization":4,"armGroups":7,"interventions":18,"overallOfficials":10,"centralContacts":26,"locations":32,"responsibleParty":47,"collaborators":10,"id":51,"slug":52,"hasResults":53,"nctId":54,"briefTitle":55,"officialTitle":56,"acronym":57,"eligibilityCriteria":58,"healthyVolunteers":53,"sex":59,"minAge":60,"maxAge":61,"enrollmentInfo":62,"targetDuration":10,"studyType":65,"phases":10,"briefSummary":66,"conditions":67,"keywords":74,"overallStatus":80,"whyStopped":10,"lastUpdateSubmitDate":81,"lastUpdatePostDateStruct":82,"startDateStruct":85,"completionDateStruct":86,"leadSponsor":88,"locationsCount":89},{"fullName":5,"class":6},"Marmara University Pendik Training and Research Hospital","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Loss of Resistance (LOR) Group",null,"Patients in whom the epidural space is identified using the loss of resistance technique. The attending resident uses a syringe filled with air or normal saline attached to the Tuohy needle hub and advances until resistance disappears upon entering the epidural space.",[13],"Procedure: epidural catheter placement",{"label":15,"type":10,"description":16,"interventionNames":17},"Hanging Drop (HD) Group","Patients in whom the epidural space is identified using the hanging drop technique. A drop of normal saline is placed at the Tuohy needle hub and observed to be aspirated inward by the negative epidural pressure as the needle tip traverses the ligamentum flavum.",[13],[19],{"type":20,"name":21,"description":22,"armGroupLabels":23,"otherNames":24},"PROCEDURE","epidural catheter placement","Epidural catheterization performed using an 18G Tuohy needle and standard catheter set by anesthesia residents with a minimum of two years of training, under specialist supervision. Technique selection (LOR or HD) is at the discretion of the performing resident and is not randomized.",[15,9],[25],"neuroaxial blockade",[27],{"name":28,"role":29,"phone":30,"phoneExt":10,"email":31},"Dilara Göçmen, asst prof","CONTACT","+90 216 625 4545","dilara.gocmen@marmara.edu.tr",[33],{"facility":5,"status":10,"city":34,"state":35,"zip":36,"country":37,"countryCode":10,"cosmosGeoPoint":38,"geoPoint":43,"contacts":44},"Istanbul","Maltepe","34852","Turkey (Türkiye)",{"type":39,"coordinates":40},"Point",[41,42],28.94966,41.01384,{"lat":42,"lon":41},[45],{"name":46,"role":29,"phone":30,"phoneExt":10,"email":31},"dilara göçmen, Asst prof",{"type":48,"investigatorFullName":49,"investigatorTitle":50,"investigatorAffiliation":5,"oldNameTitle":10,"oldOrganization":10},"PRINCIPAL_INVESTIGATOR","dilara gocmen","Dilara Göçmen","100637001","epidural-catheter-placement-techniques-by-anesthesia-residents-success-and-complications-100637001",false,"NCT07573007","Epidural Catheter Placement Techniques by Anesthesia Residents: Success and Complications","Anesthesia Residents' Epidural Catheter Placement Techniques: A Prospective Observational Study on Success Rates and Complications","EPİ-TECH","Inclusion Criteria:\n\n* Age 18-80 years\n* ASA physical status I, II, or III\n* Scheduled for elective surgery requiring perioperative epidural analgesia or anesthesia (lumbar or thoracic approach)\n* Epidural catheter to be placed by a resident with ≥ 2 years of anesthesia training\n\nExclusion Criteria:\n\n* Spinal deformity (scoliosis, kyphosis, or prior spinal surgery at the target level)\n* Coagulopathy or anticoagulant therapy precluding neuraxial blockade\n* Active infection at the insertion site or systemic infection\n* Pre-existing neurological disease affecting the spinal cord or nerve roots\n* Emergency surgery\n* History of prior failed epidural catheterization\n* Patient refusal or inability to provide written informed consent\n* Local anatomical pathology precluding safe epidural access","ALL","18 Years","80 Years",{"count":63,"type":64},440,"ESTIMATED","OBSERVATIONAL","This prospective observational study aims to evaluate the impact of epidural catheter placement techniques - loss of resistance (LOR) and hanging drop (HD) - on first-attempt success rates and procedural complications among anesthesia residents. Residents with at least two years of training will perform epidural catheterization under supervision for patients scheduled for elective surgery requiring perioperative epidural analgesia. An independent observer will record procedural details, complications, and postoperative pain scores. The study will enroll 440 patients aged 18-80 with ASA I-III classification.",[68,69,70,71,72,73],"Epidural Anesthesia","Catheterisation","Education","Postoperative Pain","Medical","Graduate Medical Education",[75,76,77,78,79],"epidural catheter","loss of resistance","hanging drop","procedural training","epidural space identification","NOT_YET_RECRUITING","2026-05-01",{"date":83,"type":84},"2026-05-07","ACTUAL",{"date":81,"type":64},{"date":87,"type":64},"2027-06-01",{"name":5,"class":6},1]