[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100622735":3},{"organization":4,"armGroups":7,"interventions":20,"overallOfficials":26,"centralContacts":26,"locations":26,"responsibleParty":31,"collaborators":26,"id":35,"slug":36,"hasResults":37,"nctId":38,"briefTitle":39,"officialTitle":40,"acronym":26,"eligibilityCriteria":41,"healthyVolunteers":37,"sex":42,"minAge":43,"maxAge":44,"enrollmentInfo":45,"targetDuration":26,"studyType":48,"phases":49,"briefSummary":51,"conditions":52,"keywords":55,"overallStatus":58,"whyStopped":26,"lastUpdateSubmitDate":59,"lastUpdatePostDateStruct":60,"startDateStruct":63,"completionDateStruct":65,"leadSponsor":67,"locationsCount":26},{"fullName":5,"class":6},"Dr Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Sitting Position Group","ACTIVE_COMPARATOR","Intervention: Erector Spinae Plane Block Ultrasound-guided unilateral erector spinae plane block performed in the sitting position using 30 mL of 0.25% bupivacaine.",[13],"Drug: Erector Spinae (ESP) Block with Bupivacaine (Marcaine®) sitting position",{"label":15,"type":16,"description":17,"interventionNames":18},"Lateral Decubitus Position Group","EXPERIMENTAL","Intervention: Erector Spinae Plane Block Ultrasound-guided unilateral erector spinae plane block performed in the lateral decubitus position (operative side up) using 30 mL of 0.25% bupivacaine.",[19],"Drug: Erector Spinae (ESP) Block with Bupivacaine (Marcaine®) lateral position",[21,27],{"type":22,"name":23,"description":24,"armGroupLabels":25,"otherNames":26},"DRUG","Erector Spinae (ESP) Block with Bupivacaine (Marcaine®) sitting position","Erector spinae plane block-sitting position",[9],null,{"type":22,"name":28,"description":29,"armGroupLabels":30,"otherNames":26},"Erector Spinae (ESP) Block with Bupivacaine (Marcaine®) lateral position","Erector Spinae Plane Block-Lateral position",[15],{"type":32,"investigatorFullName":33,"investigatorTitle":34,"investigatorAffiliation":5,"oldNameTitle":26,"oldOrganization":26},"PRINCIPAL_INVESTIGATOR","Ekin Guran, MD","Principal investigator","100622735","effect-of-patient-position-on-erector-spinae-plane-block-in-thoracic-surgery-100622735",false,"NCT07387484","Effect of Patient Position on Erector Spinae Plane Block in Thoracic Surgery","Effect of Patient Position on Dermatomal Spread and Analgesic Outcomes of Erector Spinae Plane Block in Thoracic Surgery: A Prospective Randomized Clinical Trial","Inclusion Criteria:\n\n* Age 18 to 75 years\n* ASA physical status II-IV\n* Scheduled for elective video-assisted thoracic surgery\n* Ability to provide written informed consent\n\nExclusion Criteria:\n\n* Known allergy to local anesthetics\n* Chronic opioid use\n* Preexisting chronic pain\n* Severe cognitive impairment\n* Technical difficulty with positioning\n* Emergency surgery\n* Refusal to participate","ALL","18 Years","75 Years",{"count":46,"type":47},90,"ESTIMATED","INTERVENTIONAL",[50],"NA","The erector spinae plane (ESP) block is a widely used regional anesthesia technique for postoperative analgesia in thoracic surgery. The block can be performed in different patient positions, most commonly sitting or lateral decubitus, but the effect of patient position on dermatomal sensory spread and analgesic efficacy has not been clearly established.\n\nThis prospective, randomized, single-blind clinical trial aims to compare the effects of ESP block performed in sitting versus lateral decubitus position on dermatomal sensory distribution and postoperative analgesic outcomes in patients undergoing video-assisted thoracic surgery.",[53,54],"Thoracic Surgery, Video Assisted","Postoperative Pain",[56,57],"video assisted thorachoscopic surgery","erector spinae plane block","NOT_YET_RECRUITING","2026-02-04",{"date":61,"type":62},"2026-02-06","ACTUAL",{"date":64,"type":47},"2026-02",{"date":66,"type":47},"2026-05",{"name":5,"class":6}]