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| Glasgow Coma Scale | |
|---|---|
| Name | Glasgow Coma Scale |
| Caption | Neurological assessment |
| Field | Neurology |
| Invented by | James Gregory |
| Year | 1974 |
| Purpose | Level of consciousness assessment |
Glasgow Coma Scale The Glasgow Coma Scale is a clinical tool used to assess level of consciousness after head injury and in medical care. It is applied in settings ranging from Royal Infirmary of Edinburgh emergency departments to Johns Hopkins Hospital intensive care units and influences decisions by teams including World Health Organization consultants, Red Cross medics, and trauma systems like American College of Surgeons committees. Major organizations such as National Health Service (England) trusts, Centers for Disease Control and Prevention, and Médecins Sans Frontières include Coma Scale findings in protocols alongside guidance from agencies like European Resuscitation Council and American Heart Association.
The scale provides a rapid, bedside estimate of consciousness used by clinicians at institutions such as Mayo Clinic, Cleveland Clinic, and military hospitals like Walter Reed National Military Medical Center. Its results inform care pathways in trauma centers accredited by the American College of Surgeons and influence triage decisions during mass-casualty incidents guided by organizations like FEMA and NATO. Protocols in stroke units at centers including Mount Sinai Health System and Massachusetts General Hospital often integrate the score with neuroimaging from facilities such as Royal London Hospital and Charité – Universitätsmedizin Berlin.
The assessment comprises subscores derived from observable responses used in emergency settings at hospitals such as St Thomas' Hospital and Toronto General Hospital. Clinicians trained at academic centers including University of Oxford, Harvard Medical School, and University of Cambridge evaluate eye opening, motor response, and verbal response, with numeric values summing to a composite score. Scores are recorded in patient charts at institutions like Johns Hopkins Hospital, relayed to specialists at referral centers such as Karolinska University Hospital, and documented in registries maintained by organizations like European Stroke Organisation.
Practitioners in neurosurgery units at hospitals such as Guy's and St Thomas' NHS Foundation Trust and Royal Melbourne Hospital use the score to guide management decisions including airway protection and intracranial pressure monitoring protocols developed by groups like Brain Trauma Foundation. Critical care teams in settings overseen by Intensive Care Society and Society of Critical Care Medicine incorporate the score into prognostic models alongside biomarkers from labs like Mayo Clinic Laboratories and imaging from centers such as Toronto Western Hospital. Emergency physicians in services like New York Presbyterian Hospital and Bellevue Hospital use serial measurements for trend analysis, communicating results during handovers to services at University College London Hospitals and Sheba Medical Center.
Limitations acknowledged by researchers at institutions such as University of California, San Francisco and Johns Hopkins University include reduced applicability in patients sedated in operating rooms at centers like Royal Free Hospital or paralysed in intensive care at St Vincent's Hospital. Modifications and pediatric adaptations proposed by teams from Great Ormond Street Hospital and Children's Hospital of Philadelphia aim to address age-specific assessment challenges, while alternative scoring systems evaluated by researchers at Karolinska Institutet and University of Toronto attempt to improve interrater reliability noted in multicenter audits by NHS England and registries like Trauma Audit and Research Network.
Complementary instruments used alongside the scale in clinical pathways include the Pediatric Glasgow Coma Scale developed in pediatric centers such as Boston Children's Hospital and the AVPU scale implemented by emergency services like London Ambulance Service and New South Wales Ambulance. Other neurological assessments applied at stroke centers like Royal Prince Alfred Hospital and rehabilitation facilities including Spaulding Rehabilitation Hospital involve the NIH Stroke Scale, the Riker Sedation-Agitation Scale, and scores adopted by the American Association of Neurological Surgeons and European Stroke Organisation.
Developed by clinicians with links to institutions including University of Glasgow and refined through collaboration among hospitals such as Queen Elizabeth University Hospital and research groups at University of Edinburgh, the scale gained international adoption after dissemination through meetings of bodies like the World Federation of Neurology and publications influencing protocols at organizations such as World Health Organization. Its propagation was supported by trauma networks including Trauma Audit and Research Network and adoption in guidelines from societies like the American College of Surgeons and Society of Critical Care Medicine.