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Université Laval","Québec","G1R 2J6",{"type":29,"coordinates":115},[116,117],-71.21454,46.81228,{"lat":117,"lon":116},[120,122],{"name":121,"role":16,"phone":7,"phoneExt":7,"email":7},"Alexandra Nadeau",{"name":123,"role":12,"phone":7,"phoneExt":7,"email":7},"Éric Mercier, MD",{"type":125,"investigatorFullName":126,"investigatorTitle":127,"investigatorAffiliation":5,"oldNameTitle":7,"oldOrganization":7},"SPONSOR_INVESTIGATOR","Dr. Kerstin de Wit","Associate Professor",[129],{"name":130,"class":131},"Canadian Institutes of Health Research (CIHR)","OTHER_GOV","100467283","selective-ct-for-anticoagulated-head-injured-patients-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":143,"type":144},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.",[148,149,150,151],"Head Injury","Traumatic Brain Injury","Intracranial Hemorrhage, Traumatic","Blunt Head Injury","2026-04-11",{"date":154,"type":155},"2026-04-14","ACTUAL",{"date":157,"type":155},"2022-02-01",{"date":159,"type":144},"2027-09-30",{"name":126,"class":6},7]