title: The impact of injury severity and prehospital procedures on scene time in victims of major trauma.
abstract: OBJECTIVE
  To evaluate the relationship among injury severity, prehospital procedures, and time spent at the scene by paramedics for victims of major trauma.
  
  
  METHODS
  Retrospective study of 98 consecutive patients with an Injury Severity Score of more than 15 who were brought to a trauma center by fire department paramedics.
  
  
  METHODS
  A medium-sized metropolitan emergency medical services (EMS) system and a Level I trauma center.
  
  
  RESULTS
  There were 66 male and 32 female patients with a mean age of 34 years. Thirty-two patients (32.6%) died. Blunt and penetrating trauma accounted for 68.4% and 31.6% of cases, respectively. Thirty-three patients (33.7%) had successful advanced airway procedures, and 81 (82.7%) had at least one IV line started in the field. Analysis of scene time, prehospital procedures, and injury severity parameters revealed that more procedures were performed in the field on the more severely injured cases; that despite this, there was a trend toward shorter scene time for more severely injured patients; and that there was a mean scene time of 8.1 minutes. This is the shortest scene time reported to date for prehospital trauma care in an EMS system.
  
  
  CONCLUSIONS
  Extremely short scene times can be attained without foregoing potentially life-saving advanced life support interventions in an urban EMS system with strong medical control. In such a system, the most severely injured victims may spend less time at the scene although more procedures are performed on them.
authors.affiliation: Arizona Emergency Medicine Research Center, University of Arizona College of Medicine, Tucson 85724.
authors.forename: D W
authors.initials: DW
authors.lastname: Spaite
authors.forename: D J
authors.initials: DJ
authors.lastname: Tse
authors.forename: T D
authors.initials: TD
authors.lastname: Valenzuela
authors.forename: E A
authors.initials: EA
authors.lastname: Criss
authors.forename: H W
authors.initials: HW
authors.lastname: Meislin
authors.forename: M
authors.initials: M
authors.lastname: Mahoney
authors.forename: J
authors.initials: J
authors.lastname: Ross
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002406:Catheterization, Peripheral; D002648:Child; D002675:Child, Preschool; D004632:Emergency Medical Services; D005260:Female; D006801:Humans; D015601:Injury Severity Score; D007442:Intubation, Intratracheal; D008020:Life Support Care; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D013997:Time Factors; D014193:Trauma Centers; D014949:Wounds, Nonpenetrating / Q000145:classification* / Q000401:mortality; D014950:Wounds, Penetrating / Q000145:classification* / Q000401:mortality