[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100641532":3},{"organization":4,"armGroups":7,"interventions":19,"overallOfficials":25,"centralContacts":30,"locations":36,"responsibleParty":61,"collaborators":65,"id":69,"slug":70,"hasResults":71,"nctId":72,"briefTitle":73,"officialTitle":74,"acronym":75,"eligibilityCriteria":76,"healthyVolunteers":71,"sex":77,"minAge":78,"maxAge":79,"enrollmentInfo":80,"targetDuration":25,"studyType":83,"phases":84,"briefSummary":86,"conditions":87,"keywords":90,"overallStatus":39,"whyStopped":25,"lastUpdateSubmitDate":96,"lastUpdatePostDateStruct":97,"startDateStruct":100,"completionDateStruct":101,"leadSponsor":103,"locationsCount":104},{"fullName":5,"class":6},"Bursa Yuksek Ihtisas Training and Research Hospital","OTHER_GOV",[8,14],{"label":9,"type":10,"description":11,"interventionNames":12},"SPSIP Block Group","EXPERIMENTAL","Patients will receive an ultrasound-guided Serratus Posterior Superior Intercostal Plane (SPSIP) block before induction of general anesthesia for postoperative analgesia after video-assisted thoracic surgery (VATS).",[13],"Procedure: Serratus posterior superior intercostal plane block",{"label":15,"type":10,"description":16,"interventionNames":17},"RISS Block Group","Patients will receive an ultrasound-guided Rhomboid Intercostal and Subserratus (RISS) block before induction of general anesthesia for postoperative analgesia after video-assisted thoracic surgery (VATS).",[18],"Procedure: Rhomboid Intercostal and Subserratus Block",[20,26],{"type":21,"name":22,"description":23,"armGroupLabels":24,"otherNames":25},"PROCEDURE","Serratus posterior superior intercostal plane block","Ultrasound-guided Serratus Posterior Superior Intercostal Plane (SPSIP) block performed before induction of general anesthesia using local anesthetic for postoperative analgesia in patients undergoing video-assisted thoracic surgery.",[9],null,{"type":21,"name":27,"description":28,"armGroupLabels":29,"otherNames":25},"Rhomboid Intercostal and Subserratus Block","Ultrasound-guided Rhomboid Intercostal and Subserratus (RISS) block performed before induction of general anesthesia using local anesthetic for postoperative analgesia in patients undergoing video-assisted thoracic surgery.",[15],[31],{"name":32,"role":33,"phone":34,"phoneExt":25,"email":35},"Yusuf Alan","CONTACT","+905396210977","dryusufalan@gmail.com",[37],{"facility":38,"status":39,"city":40,"state":41,"zip":42,"country":43,"countryCode":25,"cosmosGeoPoint":44,"geoPoint":49,"contacts":50},"Bursa City Hospital","RECRUITING","Bursa","Nilüfer","16100","Turkey (Türkiye)",{"type":45,"coordinates":46},"Point",[47,48],29.06013,40.19559,{"lat":48,"lon":47},[51,54,56,59],{"name":52,"role":33,"phone":53,"phoneExt":25,"email":35},"Yusuf Alan, MD","05396210977",{"name":52,"role":55,"phone":25,"phoneExt":25,"email":25},"PRINCIPAL_INVESTIGATOR",{"name":57,"role":58,"phone":25,"phoneExt":25,"email":25},"Onur Gunes, MD","SUB_INVESTIGATOR",{"name":60,"role":58,"phone":25,"phoneExt":25,"email":25},"Halil ERTEK, MD",{"type":62,"investigatorFullName":63,"investigatorTitle":64,"investigatorAffiliation":5,"oldNameTitle":25,"oldOrganization":25},"SPONSOR_INVESTIGATOR","Ferit Yetik","MD",[66],{"name":67,"class":68},"Bursa Sehir Hastanesi","OTHER","100641532","spsip-versus-riss-block-in-volume-preserving-vats-100641532",false,"NCT07655336","SPSIP Versus RISS Block in Volume-Preserving VATS","Comparison of Serratus Posterior Superior Intercostal Plane Block and Rhomboid Intercostal-Subserratus Plane Block on Postoperative Analgesia and Respiratory Functions in Volume-Preserving Video-Assisted Thoracoscopic Surgery: A Prospective Randomized Controlled Trial","SRVATS","Inclusion Criteria:\n\n* Patients scheduled for elective biportal video-assisted thoracoscopic surgery (VATS) with lung parenchyma-preserving thoracic procedures under general anesthesia\n* American Society of Anesthesiologists (ASA) physical status I-III\n* Age between 18 and 75 years\n* Provision of written informed consent\n\nExclusion Criteria:\n\n* Use of anticoagulant or antiplatelet therapy\n* Bleeding diathesis\n* Known allergy to local anesthetics\n* Infection at the planned block site\n* Severe chronic pulmonary disease or advanced respiratory failure (e.g., severe COPD or restrictive lung disease)\n* Cognitive impairment preventing reliable NRS assessment\n* Pregnancy or lactation\n* Chronic opioid use (regular use for ≥3 months)\n* Severe hepatic or renal failure\n* Refusal to participate\n* Technical failure or unsuccessful regional block\n* Conversion to open thoracotomy during surgery","ALL","18 Years","75 Years",{"count":81,"type":82},84,"ESTIMATED","INTERVENTIONAL",[85],"NA","This prospective randomized controlled study aims to compare the effects of Serratus Posterior Superior Intercostal Plane (SPSIP) block and Rhomboid Intercostal and Subserratus (RISS) block on postoperative pain, respiratory function, and recovery quality in patients undergoing volume-preserving video-assisted thoracoscopic surgery (VATS). Eighty-four patients will be randomized in a 1:1 ratio to receive either SPSIP block or RISS block. The primary outcome is the incidence of somatic pain at the chest drain insertion site at postoperative 2 hours. Secondary outcomes include pain scores, opioid consumption, quality of recovery, diaphragmatic function, pulmonary function, rescue analgesic requirements, postoperative nausea and vomiting, and block-related complications.",[88,89],"Postoperative Pain","Thoracic Surgery",[91,92,93,27,94,95],"Video-Assisted Thoracic Surgery","VATS","Serratus Posterior Superior Intercostal Plane Block","Diaphragmatic Excursion","Peak Expiratory Flow","2026-06-18",{"date":98,"type":99},"2026-06-22","ACTUAL",{"date":96,"type":99},{"date":102,"type":82},"2026-12",{"name":63,"class":6},1]