[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100625979":3},{"organization":4,"armGroups":7,"interventions":24,"overallOfficials":29,"centralContacts":29,"locations":36,"responsibleParty":60,"collaborators":29,"id":64,"slug":65,"hasResults":66,"nctId":67,"briefTitle":68,"officialTitle":69,"acronym":29,"eligibilityCriteria":70,"healthyVolunteers":66,"sex":71,"minAge":72,"maxAge":73,"enrollmentInfo":74,"targetDuration":29,"studyType":77,"phases":78,"briefSummary":80,"conditions":81,"keywords":84,"overallStatus":39,"whyStopped":29,"lastUpdateSubmitDate":90,"lastUpdatePostDateStruct":91,"startDateStruct":94,"completionDateStruct":95,"leadSponsor":97,"locationsCount":98},{"fullName":5,"class":6},"Atatürk Chest Diseases and Chest Surgery Training and Research Hospital","OTHER",[8,14,19],{"label":9,"type":10,"description":11,"interventionNames":12},"Interscalene block","ACTIVE_COMPARATOR","In the preoperative period, 10 mL of 0.25% bupivacaine will be injected between C5 and C6 using an in-plane technique guided by a linear ultrasound (US) probe.",[13],"Procedure: Interscalene block",{"label":15,"type":10,"description":16,"interventionNames":17},"Anterior suprascapular block","A linear ultrasound probe will be positioned in the supraclavicular fossa, parallel to the clavicle. The suprascapular nerve will be identified as a hyperechoic oval structure deep to the omohyoid muscle and posterior-lateral to the brachial plexus. 10 mL of local anesthetic will be injected under the omohyoid muscle, around the suprascapular nerve.",[18],"Procedure: Anterior suprascapular block",{"label":20,"type":10,"description":21,"interventionNames":22},"Pericapsular nerve group (PENG) block","A linear ultrasound probe will be placed sagittally, near the axillary region, just below the coracoid process. The subscapularis muscle and its tendon will be visualized. The target area is the space between the deep fascia of the subscapularis muscle and the anterior surface of the shoulder joint capsule. The needle will pass the subscapularis muscle and be guided into the plane between the capsule and the muscle, where 20 mL of local anesthetic will be dispensed to block the articular branches innervating the capsule.",[23],"Procedure: Pericapsular nerve group (PENG) block",[25,30,33],{"type":26,"name":9,"description":27,"armGroupLabels":28,"otherNames":29},"PROCEDURE","Interscalene block will be performed, under US guidance, before the surgical operation, and when the patient is placed in the supine position.",[9],null,{"type":26,"name":15,"description":31,"armGroupLabels":32,"otherNames":29},"Anterior suprascapular block will be performed, under US guidance, before the surgical operation, and when the patient is placed in the supine position.",[15],{"type":26,"name":20,"description":34,"armGroupLabels":35,"otherNames":29},"Pericapsular nerve group (PENG) block will be performed, under US guidance, before the surgical operation, and when the patient is placed in the supine position.",[20],[37],{"facility":38,"status":39,"city":40,"state":41,"zip":42,"country":43,"countryCode":29,"cosmosGeoPoint":44,"geoPoint":49,"contacts":50},"Ankara Etlik City Hospital","RECRUITING","Yenimahalle","Ankara","06170","Turkey (Türkiye)",{"type":45,"coordinates":46},"Point",[47,48],32.80147,39.97787,{"lat":48,"lon":47},[51,56],{"name":52,"role":53,"phone":54,"phoneExt":29,"email":55},"Musa Zengin, Associate Professor","CONTACT","00905307716235","musazengin@gmail.com",{"name":57,"role":53,"phone":58,"phoneExt":29,"email":59},"Muammer Bulut, MD","00905545839533","muammerblt8@gmail.com",{"type":61,"investigatorFullName":62,"investigatorTitle":63,"investigatorAffiliation":38,"oldNameTitle":29,"oldOrganization":29},"PRINCIPAL_INVESTIGATOR","Musa Zengin","Principal İnvestigator","100625979","comparative-analgesia-and-respiratory-effects-of-shoulder-blocks-100625979",false,"NCT07429669","Comparative Analgesia and Respiratory Effects of Shoulder Blocks","Analgesic Efficacy and Respiratory Effects of Interscalene, Anterior Suprascapular, and Pericapsular Nerve Group Blocks in Shoulder Arthroscopy","Inclusion Criteria:\n\n* Patients with ASA scores I-II-III\n* Patients scheduled for elective arthroscopic shoulder surgery\n* Patients who have been informed about the study and have given written consent will be included.\n\nExclusion Criteria:\n\n* Those with a known allergy to local anesthetics\n* Those with an infection at the application site\n* Those with a severe coagulopathy disorder or anticoagulant use\n* Those with contralateral phrenic nerve palsy or a serious pulmonary diagnosis\n* Those with a history of chronic opioid use or neuropathic pain","ALL","18 Years","65 Years",{"count":75,"type":76},120,"ESTIMATED","INTERVENTIONAL",[79],"NA","Interscalene block is widely accepted as the gold-standard regional analgesic technique for pain control after arthroscopic shoulder surgery. However, because this block is performed at the level of the brachial plexus roots, it may be associated with adverse effects such as phrenic nerve blockade and subsequent diaphragmatic dysfunction. These limitations have prompted the search for alternative regional anesthesia techniques that can provide effective postoperative analgesia while preserving respiratory function.\n\nThe anterior suprascapular block, which covers a broad dermatomal distribution of the shoulder region, has been shown in some studies to provide sufficient analgesia as a standalone technique. In addition, the pericapsular nerve group (PENG) block of the shoulder-applied around the anterior capsule and performed at a distance from critical neurovascular structures that may lead to serious complications-may represent another potential analgesic option following arthroscopic shoulder procedures.\n\nTherefore, this study aims to evaluate alternative regional block techniques in comparison with the interscalene block and to contribute to the identification of an optimal analgesic strategy after arthroscopic shoulder surgery.",[82,83],"Postoperative Pain","Arthroscopic Shoulder Surgery",[9,15,85,86,87,88,89],"Pericapsular nerve group block","Shoulder Block","Arthroscopic shoulder surgery","Pain, acute","Pain, Postoperative","2026-02-23",{"date":92,"type":93},"2026-02-24","ACTUAL",{"date":90,"type":93},{"date":96,"type":76},"2026-11-30",{"name":5,"class":6},1]