[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100649779":3},{"organization":4,"armGroups":7,"interventions":19,"overallOfficials":24,"centralContacts":28,"locations":38,"responsibleParty":56,"collaborators":24,"id":60,"slug":61,"hasResults":62,"nctId":63,"briefTitle":64,"officialTitle":65,"acronym":24,"eligibilityCriteria":66,"healthyVolunteers":62,"sex":67,"minAge":68,"maxAge":69,"enrollmentInfo":70,"targetDuration":24,"studyType":73,"phases":74,"briefSummary":76,"conditions":77,"keywords":83,"overallStatus":40,"whyStopped":24,"lastUpdateSubmitDate":87,"lastUpdatePostDateStruct":88,"startDateStruct":91,"completionDateStruct":92,"leadSponsor":94,"locationsCount":95},{"fullName":5,"class":6},"Ankara Etlik City Hospital","OTHER_GOV",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Transverse SAP Block","ACTIVE_COMPARATOR","Patients will receive an ultrasound-guided Serratus Anterior Plane (SAP) block at the 4th rib level. The ultrasound probe will be placed in a transverse orientation (perpendicular to the ribs). A total of 20 mL of 0.375% bupivacaine will be injected into the fascial plane.",[13],"Procedure: Transverse SAP Block",{"label":15,"type":10,"description":16,"interventionNames":17},"Longitudinal SAP Block","Patients will receive an ultrasound-guided Serratus Anterior Plane (SAP) block at the 4th rib level. The ultrasound probe will be placed in a longitudinal orientation (parallel to the ribs in the craniocaudal axis). A total of 20 mL of 0.375% bupivacaine will be injected into the fascial plane.",[18],"Procedure: Longitudinal SAP Block",[20,25],{"type":21,"name":9,"description":22,"armGroupLabels":23,"otherNames":24},"PROCEDURE","Transverse serratus anterior plane block will be performed on the patients using 20 mL of 0.375% bupivacaine under ultrasound guidance.",[9],null,{"type":21,"name":15,"description":26,"armGroupLabels":27,"otherNames":24},"Longitudinal serratus anterior plane block will be performed on the patients using 20 mL of 0.375% bupivacaine under ultrasound guidance.",[15],[29,34],{"name":30,"role":31,"phone":32,"phoneExt":24,"email":33},"İbrahim MD Topcu","CONTACT","05437860316","ibrahimtpc78@gmail.com",{"name":35,"role":31,"phone":36,"phoneExt":24,"email":37},"Musa Ass. Prof Zengin","05071302750","musazengin@gmail.com",[39],{"facility":5,"status":40,"city":41,"state":42,"zip":43,"country":44,"countryCode":24,"cosmosGeoPoint":45,"geoPoint":50,"contacts":51},"RECRUITING","Ankara","Yenimahalle\\Ankara","06170","Turkey (Türkiye)",{"type":46,"coordinates":47},"Point",[48,49],32.85427,39.91987,{"lat":49,"lon":48},[52,53],{"name":30,"role":31,"phone":32,"phoneExt":24,"email":33},{"name":54,"role":31,"phone":55,"phoneExt":24,"email":37},"Musa Assoc.Prof Zengin","00905307716235",{"type":57,"investigatorFullName":58,"investigatorTitle":59,"investigatorAffiliation":5,"oldNameTitle":24,"oldOrganization":24},"PRINCIPAL_INVESTIGATOR","İbrahim Topcu","Principal Investigator","100649779","transverse-vs-longitudinal-serratus-anterior-plane-block-in-breast-surgery-100649779",false,"NCT07739277","Transverse vs. Longitudinal Serratus Anterior Plane Block in Breast Surgery","Efficacy of Transverse Versus Longitudinal Ultrasound Probe Orientation for Serratus Anterior Plane Block on Postoperative Pain in Breast Surgery: A Prospective Randomized Controlled Trial","Inclusion Criteria:\n\n* Patients aged between 18 and 65 years\n* American Society of Anesthesiologists (ASA) physical status I, II, or III\n* BMI between 18 - 30 kg\u002Fm2\n* Patients scheduled for elective breast surgery\n* Ability to provide written informed consent\n\nExclusion Criteria:\n\n* Known allergy to local anesthetics\n* Infection at the injection site\n* Severe coagulopathy or use of anticoagulants\n* Chronic opioid use or history of neuropathic pain","ALL","18 Years","65 Years",{"count":71,"type":72},70,"ESTIMATED","INTERVENTIONAL",[75],"NA","The aim of this prospective, randomized controlled trial is to compare the analgesic efficacy of transverse versus longitudinal ultrasound probe orientations during Serratus Anterior Plane (SAP) block in patients undergoing breast surgery. The study hypothesizes that the longitudinal approach (probe parallel to the ribs) may provide better craniocaudal spread of the local anesthetic, thereby resulting in lower postoperative Visual Analog Scale (VAS) scores and reduced opioid consumption compared to the standard transverse approach.",[78,79,80,81,82],"Fascial Plane Block","Pain, Postoperative","Breast Surgery","Acute Pain","Mastectomy",[84,85,86,80],"Serratus Anterior Plane Block","Regional Anesthesia","Postoperative Analgesia","2026-08-06",{"date":89,"type":90},"2026-08-07","ACTUAL",{"date":87,"type":90},{"date":93,"type":72},"2027-02-19",{"name":5,"class":6},1]