title: Dispatch of Helicopter Emergency Medical Services Via Advanced Automatic Collision Notification.
abstract: BACKGROUND
  Advanced automatic collision notification (AACN) is a system for predicting occupant injury from collision information. If the helicopter emergency medical services (HEMS) physician can be alerted by AACN, it may be possible to reduce the time to patient contact.
  
  
  OBJECTIVE
  The purpose of this study was to validate the feasibility of early HEMS dispatch via AACN.
  
  
  METHODS
  A full-scale validation study was conducted. A car equipped with AACN was made to collide with a wall. Immediately after the collision, the HEMS was alerted directly by the operation center, which received the information from AACN. Elapsed times were recorded and compared with those inferred from the normal, real-world HEMS emergency request process.
  
  
  RESULTS
  AACN information was sent to the operation center only 7 s after the collision; the HEMS was dispatched after 3 min. The helicopter landed at the temporary helipad 18 min later. Finally, medical intervention was started 21 min after the collision. Without AACN, it was estimated that the HEMS would be requested 14 min after the collision by fire department personnel. The start of treatment was estimated to be at 32 min, which was 11 min later than that associated with the use of AACN.
  
  
  CONCLUSIONS
  The dispatch of the HEMS using the AACN can shorten the start time of treatment for patients in motor vehicle collisions. This study demonstrated that it is feasible to automatically alert and activate the HEMS via AACN.
authors.affiliation: Shock and Trauma Center, Hokusoh HEMS, Nippon Medical School, Chiba Hokusoh Hospital, Chiba, Japan; Department of Emergency and Critical Care Medicine, Nippon Medical School, Tokyo, Japan.
authors.forename: Hisashi
authors.initials: H
authors.lastname: Matsumoto
authors.affiliation: Shock and Trauma Center, Hokusoh HEMS, Nippon Medical School, Chiba Hokusoh Hospital, Chiba, Japan; Department of Emergency and Critical Care Medicine, Nippon Medical School, Tokyo, Japan; Nonprofit Organization of Emergency Medical Network of Helicopter and Hospital, Tokyo, Japan.
authors.forename: Kunihiro
authors.initials: K
authors.lastname: Mashiko
authors.affiliation: Shock and Trauma Center, Hokusoh HEMS, Nippon Medical School, Chiba Hokusoh Hospital, Chiba, Japan; Department of Emergency and Critical Care Medicine, Nippon Medical School, Tokyo, Japan.
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Hara
authors.affiliation: Shock and Trauma Center, Hokusoh HEMS, Nippon Medical School, Chiba Hokusoh Hospital, Chiba, Japan; Department of Emergency and Critical Care Medicine, Nippon Medical School, Tokyo, Japan.
authors.forename: Takanori
authors.initials: T
authors.lastname: Yagi
authors.affiliation: Shock and Trauma Center, Hokusoh HEMS, Nippon Medical School, Chiba Hokusoh Hospital, Chiba, Japan; Department of Emergency and Critical Care Medicine, Nippon Medical School, Tokyo, Japan.
authors.forename: Kazuyuki
authors.initials: K
authors.lastname: Hayashida
authors.affiliation: Shock and Trauma Center, Hokusoh HEMS, Nippon Medical School, Chiba Hokusoh Hospital, Chiba, Japan; Department of Emergency and Critical Care Medicine, Nippon Medical School, Tokyo, Japan.
authors.forename: Kazuki
authors.initials: K
authors.lastname: Mashiko
authors.affiliation: Shock and Trauma Center, Hokusoh HEMS, Nippon Medical School, Chiba Hokusoh Hospital, Chiba, Japan; Department of Emergency and Critical Care Medicine, Nippon Medical School, Tokyo, Japan.
authors.forename: Nobuyuki
authors.initials: N
authors.lastname: Saito
authors.affiliation: Shock and Trauma Center, Hokusoh HEMS, Nippon Medical School, Chiba Hokusoh Hospital, Chiba, Japan; Department of Emergency and Critical Care Medicine, Nippon Medical School, Tokyo, Japan.
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Iida
authors.affiliation: Shock and Trauma Center, Hokusoh HEMS, Nippon Medical School, Chiba Hokusoh Hospital, Chiba, Japan; Department of Emergency and Critical Care Medicine, Nippon Medical School, Tokyo, Japan.
authors.forename: Tomokazu
authors.initials: T
authors.lastname: Motomura
authors.affiliation: Shock and Trauma Center, Hokusoh HEMS, Nippon Medical School, Chiba Hokusoh Hospital, Chiba, Japan; Department of Emergency and Critical Care Medicine, Nippon Medical School, Tokyo, Japan.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Yasumatsu
authors.affiliation: Shock and Trauma Center, Hokusoh HEMS, Nippon Medical School, Chiba Hokusoh Hospital, Chiba, Japan; Department of Emergency and Critical Care Medicine, Nippon Medical School, Tokyo, Japan.
authors.forename: Daisuke
authors.initials: D
authors.lastname: Kameyama
authors.affiliation: Shock and Trauma Center, Hokusoh HEMS, Nippon Medical School, Chiba Hokusoh Hospital, Chiba, Japan; Department of Emergency and Critical Care Medicine, Nippon Medical School, Tokyo, Japan.
authors.forename: Atsushi
authors.initials: A
authors.lastname: Hirabayashi
authors.affiliation: Department of Emergency and Critical Care Medicine, Nippon Medical School, Tokyo, Japan.
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Yokota
authors.affiliation: Japan Safe Driving Center, Ibaraki, Japan; Nonprofit Organization of Emergency Medical Network of Helicopter and Hospital, Tokyo, Japan.
authors.forename: Hirotoshi
authors.initials: H
authors.lastname: Ishikawa
authors.affiliation: Nonprofit Organization of Emergency Medical Network of Helicopter and Hospital, Tokyo, Japan.
authors.forename: Takaji
authors.initials: T
authors.lastname: Kunimatsu
mesh_terms: D000063:Accidents, Traffic / Q000706:statistics & numerical data*; D017732:Air Ambulances / Q000706:statistics & numerical data*; D000071820:Emergency Medical Dispatch / Q000458:organization & administration*; D004631:Emergency Medical Service Communication Systems / Q000706:statistics & numerical data*; D005240:Feasibility Studies; D006801:Humans; D013997:Time Factors; D061665:Time-to-Treatment / Q000706:statistics & numerical data*
keywords: automatic collision notification; helicopter emergency medical services; intelligent transportation system; trauma system