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Université Laval","Québec","G1R 2J6",{"type":28,"coordinates":114},[115,116],-71.21454,46.81228,{"lat":116,"lon":115},[119,121],{"name":120,"role":16,"phone":7,"phoneExt":7,"email":7},"Alexandra Nadeau",{"name":122,"role":12,"phone":7,"phoneExt":7,"email":7},"Éric Mercier, MD",{"type":124,"investigatorFullName":125,"investigatorTitle":126,"investigatorAffiliation":5,"oldNameTitle":7,"oldOrganization":7},"SPONSOR_INVESTIGATOR","Dr. Kerstin de Wit","Associate Professor",[128],{"name":129,"class":130},"Canadian Institutes of Health Research (CIHR)","OTHER_GOV","100467283",false,"NCT05364749","Selective CT for Anticoagulated Head Injured Patients","Selective Neuroimaging for Head-injured Emergency Patients Who Take Anticoagulant Medication","Can-SCAHn","Inclusion Criteria:\n\n* Age ≥16 years\n* Presents to the emergency department after a head injury\n* Patient has a head CT in the emergency department\n* Is a current anticoagulant user\n\nExclusion Criteria:\n\n* Head injury occurred \\>48 h before patient's arrival to the emergency department\n* Penetrating head injury\n* Previously enrolled\n* Patient resides outside of the hospital's catchment area\n* Patient was transferred from another emergency department following neuroimaging\n* Patient was not managed by the emergency or trauma physician in the emergency department\n* Leaves the emergency department prior to completion of their medical assessment","ALL","16 Years",{"count":141,"type":142},4000,"ESTIMATED","OBSERVATIONAL","The goal is to derive and a clinical decision rule for safe exclusion of traumatic brain injury without neuroimaging in head-injured ED patients who take anticoagulant medications.\n\nThe objectives are to:\n\n1. Derive and externally validate a new highly sensitive and maximally specific clinical decision rule for the exclusion of traumatic brain injury in head-injured ED patients who take anticoagulant medications; and,\n2. Estimate the sensitivity and specificity of existing head injury clinical decision rules in head-injured ED patients who take anticoagulant medications.",[146,147,148,149],"Head Injury","Traumatic Brain Injury","Intracranial Hemorrhage, Traumatic","Blunt Head Injury","2026-04-11",{"date":152,"type":153},"2026-04-14","ACTUAL",{"date":155,"type":153},"2022-02-01",{"date":157,"type":142},"2027-09-30",{"name":125,"class":6},7]