[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100646180":3},{"organization":4,"armGroups":7,"interventions":18,"overallOfficials":25,"centralContacts":29,"locations":35,"responsibleParty":51,"collaborators":24,"id":54,"slug":55,"hasResults":56,"nctId":57,"briefTitle":58,"officialTitle":59,"acronym":60,"eligibilityCriteria":61,"healthyVolunteers":56,"sex":62,"minAge":63,"maxAge":24,"enrollmentInfo":64,"targetDuration":24,"studyType":67,"phases":68,"briefSummary":70,"conditions":71,"keywords":74,"overallStatus":81,"whyStopped":24,"lastUpdateSubmitDate":82,"lastUpdatePostDateStruct":83,"startDateStruct":86,"completionDateStruct":88,"leadSponsor":90,"locationsCount":91},{"fullName":5,"class":6},"Sultan Abdulhamid Han Training and Research Hospital, Istanbul, Turkey","OTHER",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"Anterior Interscalene Block","EXPERIMENTAL","Ultrasound-guided interscalene block with local anesthetic injected between the C5-C7 nerve roots and the anterior scalene muscle.",[13],"Procedure: Ultrasound-Guided Interscalene Block",{"label":15,"type":10,"description":16,"interventionNames":17},"Posterior Interscalene Block","Ultrasound-guided interscalene block with local anesthetic injected between the C5-C7 nerve roots and the middle scalene muscle.",[13],[19],{"type":20,"name":21,"description":22,"armGroupLabels":23,"otherNames":24},"PROCEDURE","Ultrasound-Guided Interscalene Block","Ultrasound-guided interscalene brachial plexus block performed before induction of general anesthesia. Participants are assigned to one of two injection sites around the C5-C7 nerve roots according to the randomized study protocol.",[9,15],null,[26],{"name":27,"affiliation":5,"role":28},"Tuna Erturk, MD","PRINCIPAL_INVESTIGATOR",[30],{"name":31,"role":32,"phone":33,"phoneExt":24,"email":34},"Hakan Emirkadı, MD","CONTACT","+905322609367","hemirkadi@gmail.com",[36],{"facility":37,"status":24,"city":38,"state":38,"zip":39,"country":40,"countryCode":24,"cosmosGeoPoint":41,"geoPoint":46,"contacts":47},"Sultan Abdulhamid Han Training and Research Hospital","Istanbul","34668","Turkey (Türkiye)",{"type":42,"coordinates":43},"Point",[44,45],28.94966,41.01384,{"lat":45,"lon":44},[48],{"name":49,"role":32,"phone":50,"phoneExt":24,"email":34},"Hakan drhemirkadi","05322609367",{"type":28,"investigatorFullName":52,"investigatorTitle":53,"investigatorAffiliation":5,"oldNameTitle":24,"oldOrganization":24},"Hakan Emirkadı","Principal Investigato","100646180","injection-site-in-ultrasound-guided-interscalene-block-for-shoulder-arthroscopy-100646180",false,"NCT07695025","Injection Site in Ultrasound-Guided Interscalene Block for Shoulder Arthroscopy","Does the Injection Site of Local Anesthetic Around the C5-C7 Nerve Roots Affect Block Success and Complication Rates During Ultrasound-Guided Interscalene Block for Shoulder Arthroscopy?","ISB-ROOT","Inclusion Criteria:\n\nAdults aged 18 years or older. ASA physical status I-III. Scheduled for shoulder arthroscopy under general anesthesia with a planned ultrasound-guided interscalene block for postoperative analgesia.\n\nAble to provide written informed consent. Normal coagulation parameters and no antithrombotic therapy. No infection or anatomical abnormality at the injection site. No known allergy to local anesthetics. No contralateral diaphragmatic paralysis or pneumothorax. No dyspnea and adequate pulmonary function.\n\nExclusion Criteria:\n\nAge younger than 18 years or ASA physical status IV. Antithrombotic therapy or abnormal coagulation parameters. Infection or anatomical abnormality at the injection site. Known allergy to local anesthetics. Contralateral diaphragmatic paralysis or history of pneumothorax. Dyspnea. Refusal to undergo interscalene block.","ALL","18 Years",{"count":65,"type":66},50,"ESTIMATED","INTERVENTIONAL",[69],"NA","Ultrasound-guided interscalene block is commonly used for postoperative analgesia in patients undergoing shoulder arthroscopy. The location of local anesthetic injection may influence both block efficacy and the incidence of block-related complications. This randomized, double-blind clinical trial compares two different injection sites around the C5-C7 nerve roots using the same local anesthetic dose and volume. The study will assess block success, postoperative analgesia, opioid consumption, diaphragmatic function, and procedure-related complications.",[72,73],"Shoulder Arthroscopy","Postoperative Pain",[21,75,76,72,77,78,79,80],"Interscalene Block","Regional Anesthesia","Postoperative Analgesia","Local Anesthetic","Brachial Plexus Block","Phrenic Nerve","NOT_YET_RECRUITING","2026-07-05",{"date":84,"type":85},"2026-07-10","ACTUAL",{"date":87,"type":66},"2026-07-15",{"date":89,"type":66},"2026-11-30",{"name":5,"class":6},1]