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Published byKristina McKenzie Modified over 9 years ago
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Dia Gainor, NASEMSO
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National EMS System Information System (NEMSIS) Version 3.0 Compliant Out-of-Hospital Records Emergency Department Discharge Databases Hospital Discharge Databases Trauma Registries
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Physiological scoring systems Glasgow coma scale Trauma score Revised trauma score TRISS methodology Anatomical scoring systems Abbreviated injury score Injury severity score ICD-9 Injury Severity Score
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Calibrated by the Association for the Advancement of Automotive Medicine First developed in 1969 Anatomically based Consensus derived Updated every five years Has been adopted by numerous other countries
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1 = Minor 2 = Moderate 3 = Serious 4 = Severe 5 = Critical 6 = Maximum (Untreatable)
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Head/neck Face Chest Abdomen Extremity External (skin)
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ONLY highest AIS number in each body area is used 3 most severely injured body region scores squared 3 squared scores added together = Injury Severity Score
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If injury is assigned a 6 (unsurvivable), ISS automatically = 75 Score Reflective of Injury Severity 1 - 9 Minor 10 - 15 Moderate 16 - 24 Moderate/Severe ≥ 25 Severe/Critical
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Many different injury patterns yield same ISS score Errors of AIS scoring = errors of ISS Injuries to different body regions are not weighted Limits the number of contributing injuries to 3 Can’t account for multiple injuries to the same body region
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Anatomical scoring system for patients with multiple injuries ISS score correlates with mortality, morbidity & hospital stay Bivariate correlation of mortality % with ISS and age
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Dia Gainor, NASEMSO Executive Director dia@nasemso.org 208-861-4841
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