[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100650425":3},{"organization":4,"armGroups":7,"interventions":19,"overallOfficials":24,"centralContacts":28,"locations":34,"responsibleParty":54,"collaborators":24,"id":58,"slug":59,"hasResults":60,"nctId":61,"briefTitle":62,"officialTitle":63,"acronym":24,"eligibilityCriteria":64,"healthyVolunteers":60,"sex":65,"minAge":66,"maxAge":67,"enrollmentInfo":68,"targetDuration":24,"studyType":71,"phases":72,"briefSummary":74,"conditions":75,"keywords":24,"overallStatus":80,"whyStopped":24,"lastUpdateSubmitDate":81,"lastUpdatePostDateStruct":82,"startDateStruct":85,"completionDateStruct":87,"leadSponsor":89,"locationsCount":90},{"fullName":5,"class":6},"Atatürk Chest Diseases and Chest Surgery Training and Research Hospital","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"One-level Erector Spinae Plane Block","ACTIVE_COMPARATOR","After the linear ultrasound (US) probe will be placed 2-3 cm lateral to the T3 spinous process, 30 ml of 0.25% bupivacaine hydrochloride will be injected cauda-cranially into the interfacial space below the erector spinae muscle, above the transverse process.",[13],"Procedure: One-level Erector Spinae Plane Block",{"label":15,"type":10,"description":16,"interventionNames":17},"Bi-level Erector Spinae Plane Block","After the linear ultrasound (US) probe will be placed 2-3 cm lateral to the T2 spinous process, 15 ml of 0.25% bupivacaine hydrochloride will be injected cauda-cranially into the interfacial space below the erector spinae muscle, above the transverse process. Next, the needle will be withdrawn till subcutaneously and the linear US probe will be placed 2-3 cm lateral to the T4 spinous process. Finally, 15 ml of 0.25% bupivacaine hydrochloride will be injected cranio-caudally into the interfacial space below the erector spinae muscle, above the transverse process.",[18],"Procedure: Bi-level Erector Spinae Plane Block",[20,25],{"type":21,"name":9,"description":22,"armGroupLabels":23,"otherNames":24},"PROCEDURE","One-level Erector Spinae Plane Block will be performed unilaterally, under US guidance, before the surgical operation, and when the patient is placed in the lateral decubitus position. In applications, 30 ml of 0.25% bupivacaine will be injected at the T3 level.",[9],null,{"type":21,"name":15,"description":26,"armGroupLabels":27,"otherNames":24},"Bi-level Erector Spinae Plane Block will be performed unilaterally, under US guidance, before the surgical operation, and when the patient is placed in the lateral decubitus position. In applications, 15 ml of 0.25% bupivacaine at T2 level and 15 ml of 0.25% bupivacaine at T4 level will be injected.",[15],[29],{"name":30,"role":31,"phone":32,"phoneExt":24,"email":33},"Musa Zengin, Associate Professor","CONTACT","05307716235","musazengin@gmail.com",[35],{"facility":36,"status":24,"city":37,"state":38,"zip":39,"country":40,"countryCode":24,"cosmosGeoPoint":41,"geoPoint":46,"contacts":47},"Ankara Etlik City Hospital","Yenimahalle","Ankara","06170","Turkey (Türkiye)",{"type":42,"coordinates":43},"Point",[44,45],32.80147,39.97787,{"lat":45,"lon":44},[48,50],{"name":30,"role":31,"phone":49,"phoneExt":24,"email":33},"00905307716235",{"name":51,"role":31,"phone":52,"phoneExt":24,"email":53},"Şeyma Ünal, Medical Doctor","00905369781541","seymaarbc@icloud.com",{"type":55,"investigatorFullName":56,"investigatorTitle":57,"investigatorAffiliation":5,"oldNameTitle":24,"oldOrganization":24},"PRINCIPAL_INVESTIGATOR","Musa Zengin","Principal İnvestigator","100650425","one-level-and-bi-level-espb-application-in-patients-undergoing-breast-surgery-100650425",false,"NCT07747623","One-level and Bi-level ESPB Application in Patients Undergoing Breast Surgery","Comparison of the Efficiency of One-Level and Bi-Level ESPB ESPB for Postoperative Analgesia in Patients Undergoing Breast Surgery","Inclusion Criteria:\n\n* Age between 18 and 80 years\n* American Society of Anesthesiologists physical status I-II-III\n* Body mass index between 18 and 30 kg\u002Fm²\n* Patients undergoing elective breast surgery\n\nExclusion Criteria:\n\n* Patient refusing the procedure\n* History of chronic analgesic or opioid therapy\n* History of local anesthetic allergy\n* Infection in the intervention area","FEMALE","18 Years","80 Years",{"count":69,"type":70},70,"ESTIMATED","INTERVENTIONAL",[73],"NA","Acute pain after breast surgery can significantly reduce the quality of life for patients. If acute pain is not adequately treated, it can develop into chronic pain. Thoracic epidural analgesia, thoracic paravertebral block, erector spinae plane block, and serratus anterior plane block are frequently applied blocks. However, ESPB, being a fascial plane block, can yield inconsistent results regarding distribution and dermatomal area. In recent years, there has been an increase in publications applying ESPB from two levels to achieve wider distribution. As a result, this study aims to compare the analgesic efficacy of single-level (Thoracic 3) and two-level (Thoracic 2, Thoracic 4) ESPB applications.",[76,77,78,79],"Pain, Postoperative","Breast Surgery","Erector Spinae Plane Block","Multimodal Analgesia","NOT_YET_RECRUITING","2026-07-31",{"date":83,"type":84},"2026-08-05","ACTUAL",{"date":86,"type":70},"2026-08-14",{"date":88,"type":70},"2027-01-20",{"name":5,"class":6},1]