[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100572334":3},{"organization":4,"armGroups":7,"interventions":14,"overallOfficials":20,"centralContacts":25,"locations":30,"responsibleParty":48,"collaborators":51,"id":53,"slug":54,"hasResults":55,"nctId":56,"briefTitle":57,"officialTitle":58,"acronym":10,"eligibilityCriteria":59,"healthyVolunteers":55,"sex":60,"minAge":61,"maxAge":10,"enrollmentInfo":62,"targetDuration":10,"studyType":65,"phases":10,"briefSummary":66,"conditions":67,"keywords":69,"overallStatus":33,"whyStopped":10,"lastUpdateSubmitDate":73,"lastUpdatePostDateStruct":74,"startDateStruct":77,"completionDateStruct":79,"leadSponsor":81,"locationsCount":82},{"fullName":5,"class":6},"Montreal General Hospital","OTHER",[8],{"label":9,"type":10,"description":11,"interventionNames":12},"Main study group",null,"Patients undergoing cervical medial branch blocks as part of their usual care.",[13],"Diagnostic Test: cervical medial branch block",[15],{"type":16,"name":17,"description":18,"armGroupLabels":19,"otherNames":10},"DIAGNOSTIC_TEST","cervical medial branch block","ultrasound-guided cervical medial branch block with fluoroscopic control and digital subtraction angiography",[9],[21],{"name":22,"affiliation":23,"role":24},"Roderick J Finlayson, MD","University of British Columbia","PRINCIPAL_INVESTIGATOR",[26],{"name":22,"role":27,"phone":28,"phoneExt":10,"email":29},"CONTACT","250-860-9754","roderick.finlayson@mac.com",[31],{"facility":32,"status":33,"city":34,"state":35,"zip":36,"country":37,"countryCode":38,"cosmosGeoPoint":39,"geoPoint":44,"contacts":45},"Bill Nelems Pain and Research Centre","RECRUITING","Kelowna","British Columbia","V1Y 0G1","Canada","CA",{"type":40,"coordinates":41},"Point",[42,43],-119.48568,49.88307,{"lat":43,"lon":42},[46,47],{"name":22,"role":27,"phone":28,"phoneExt":10,"email":29},{"name":22,"role":27,"phone":10,"phoneExt":10,"email":10},{"type":24,"investigatorFullName":49,"investigatorTitle":50,"investigatorAffiliation":23,"oldNameTitle":10,"oldOrganization":10},"Roderick Finlayson","RODERICK FINLAYSON MD",[52],{"name":23,"class":6},"100572334","usg-cmbb-dsa-study-100572334",false,"NCT06731920","USG CMBB DSA Study","The Incidence of Inadvertent Intravascular Injection During Ultrasound-guided Cervical Medial Branch Blocks: a Fluoroscopically Controlled Study","Inclusion Criteria:\n\nConsenting patients over 19 years of age undergoing an ultrasound-guided cervical medial branch blocks as part of their usual care.\n\nExclusion Criteria:\n\nSubjects with one or more of the following characteristics will be excluded from the study:\n\nKnown bleeding disorder or coagulopathy Patients on antiplatelet medication other than aspirin and those on anticoagulants (coumadin, AT III agents) Inability to visualize targeted structures on ultrasound Known allergy to contrast agents","ALL","19 Years",{"count":63,"type":64},300,"ESTIMATED","OBSERVATIONAL","Injections that freeze neck joints can be done using x-rays or ultrasound imaging, which as a newer way of guiding the needle to the right spot. This study will look at how often freezing liquid goes into a blood vessel during neck injections that freeze neck joints when ultrasound guidance is used to place the needle. When this happens, it can go undetected because it does not make the patient feel any different, however it could cause a test block to be falsely negative, leading to the wrong diagnosis. Based on previous studies, we think that this happens rarely, and the purpose of this study is to prove that conclusively",[68],"Cervicalgia",[70,17,71,72],"Ultrasound","safety","digital subtraction angiography","2024-12-11",{"date":75,"type":76},"2024-12-13","ACTUAL",{"date":78,"type":64},"2025-01-10",{"date":80,"type":64},"2026-08",{"name":5,"class":6},1]