[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100588093":3},{"organization":4,"armGroups":7,"interventions":18,"overallOfficials":25,"centralContacts":29,"locations":34,"responsibleParty":51,"collaborators":24,"id":54,"slug":24,"hasResults":55,"nctId":56,"briefTitle":57,"officialTitle":58,"acronym":24,"eligibilityCriteria":59,"healthyVolunteers":55,"sex":60,"minAge":61,"maxAge":62,"enrollmentInfo":63,"targetDuration":24,"studyType":66,"phases":67,"briefSummary":69,"conditions":70,"keywords":24,"overallStatus":37,"whyStopped":24,"lastUpdateSubmitDate":72,"lastUpdatePostDateStruct":73,"startDateStruct":76,"completionDateStruct":78,"leadSponsor":80,"locationsCount":81},{"fullName":5,"class":6},"Nanjing First Hospital, Nanjing Medical University","OTHER",[8,13],{"label":9,"type":6,"description":10,"interventionNames":11},"Group C","A total of 30 ml of the local anesthetic solution (0.375% ropivacaine, comprising 15 ml ropivacaine and 15 ml iodinated contrast) is injected. In the Group C, the injection is administered within 180 seconds.",[12],"Procedure: injection speed",{"label":14,"type":15,"description":16,"interventionNames":17},"Group S","EXPERIMENTAL","A total of 30 ml of the local anesthetic solution (0.375% ropivacaine, comprising 15 ml ropivacaine and 15 ml iodinated contrast) is injected. In the Group S, the injection is administered within 30 seconds.",[12],[19],{"type":20,"name":21,"description":22,"armGroupLabels":23,"otherNames":24},"PROCEDURE","injection speed","Patients undergoing CT-guided lung nodule localization were selected for the study, and ultrasound-guided erector spinae plane block was performed before surgery with different injection speed.",[9,14],null,[26],{"name":27,"affiliation":5,"role":28},"Tao Shan","STUDY_CHAIR",[30],{"name":27,"role":31,"phone":32,"phoneExt":24,"email":33},"CONTACT","+8618852095135","shantao2021@163.com",[35],{"facility":36,"status":37,"city":38,"state":39,"zip":24,"country":40,"cosmosGeoPoint":41,"geoPoint":46,"contacts":47},"Nanjing First Hospital","RECRUITING","Nanjing","Jiangsu","China",{"type":42,"coordinates":43},"Point",[44,45],118.77778,32.06167,{"lat":45,"lon":44},[48],{"name":49,"role":31,"phone":50,"phoneExt":24,"email":24},"YING ZHANG","025-52271064",{"type":52,"investigatorFullName":27,"investigatorTitle":53,"investigatorAffiliation":5,"oldNameTitle":24,"oldOrganization":24},"PRINCIPAL_INVESTIGATOR","Attending physician","100588093",false,"NCT06936904","Different Injection Speed on Local Anaesthetic Spread of ESPB","Impact of Different Injection Rate on Local Anaesthetic Spread of Ultrasound-guided Erector Spinae Plane Block","Inclusion Criteria:\n\nPatients scheduled for CT-guided lung nodule localization under local anesthesia will be selected\n\n1. aged 18-80 years\n2. BMI 18-30 kg\u002Fm²\n3. ASA classification I-III\n\nExclusion Criteria:\n\n1. Allergy to the study drug or to local anesthetics\n2. History of opioid abuse\n3. Previous infection at the ESPB or PVB puncture site\n4. Peripheral neuropathy\n5. Dysfunction of blood coagulation","ALL","18 Years","80 Years",{"count":64,"type":65},74,"ESTIMATED","INTERVENTIONAL",[68],"NA","The aim of this clinical trial is to investigate the effect of different injection speeds on the spread of local anesthetic during ultrasound-guided erector spinae plane block (ESPB) in patients undergoing CT-guided lung nodule localization. The primary question addressed is whether a high injection speed (30 ml delivered within 30 seconds) produces a different local anesthetic distribution compared with a lower injection speed (30 ml delivered within 180 seconds).",[71],"Erector Spinae Plane Block","2025-05-19",{"date":74,"type":75},"2025-05-22","ACTUAL",{"date":77,"type":75},"2025-04-21",{"date":79,"type":65},"2027-03-01",{"name":5,"class":6},1]