ISS v.1
Anatomical based scoring system for numerical description of the severity of injury in persons who have sustained trauma to mutiple body regions. ISS = A*A + B*B + C*C, where A, B and C are the AIS (abbreviated injury scale) scores assigned to the most severe injuries in the three most severely injured body regions (head/neck, face, chest, abdomen, extremities and skin). Possible AIS scores range from 0 = no injury to 5 = critical injury, while possible ISS ranges from 0 - 75. An unsurvivable injury (AIS score of 6) in any body region results in the individual automatically assigned an ISS of 75 - an injury incompatible with life. ISS shows linear correlation with hospitalisation, morbidity and mortality following trauma.
Calculates the Injury Severity Score which describes severity of injury in persons with multiple trauma.
Use to calculate the injury severity score (ISS) which is the sum of the squares of the highest abbreviated injury scale (AIS) score in each of the three most severely injured body regions. Injury severity score (ISS) summarizes injury severity and correlates well with survival following multiple injury. It also demonstrates the effects of additional injuries on mortality. ISS = A*A + B*B + C*C, where A, B and C are the AIS scores assigned to the most severe injuries in the three most severely injured body regions. Possible AIS scores range from 0 = no injury to 5 = critical injury, while possible ISS ranges from 0 - 75. An unsurvivable injury (AIS score of 6) in any body region results in the individual automatically assigned an ISS of 75, as further medical care is thought to be futile in such cases. More detail about scoring of the AIS is provided in the openEHR-EHR-OBSERVATION.abbreviated_injury_scale.v1 archetype.
Should not be based on preliminary diagnoses (suspected, possible, probable, rule out etc.). Should not be based on complications, consequences or outcomes of the injury. Not applicable to non-traumatic injury.
Joint Committee on Injury Scaling. The Abbreviated Injury Scale 1976 Revision. American Medical Association, Society of Automotive Engineers, and American Association for Automotive Medicine; Morton Grove, IL 60053, USA, 1976. Baker SP, o'Neill B, Haddon Jr W, Long WB. The injury severity score: a method for describing patients with multiple injuries and evaluating emergency care. Journal of Trauma and Acute Care Surgery. 1974 Mar 1;14(3):187-96.
OBSERVATION.injury_severity_score.v1
