title: Description and evaluation of a pilot physician-directed emergency medical services diversion control program.
abstract: OBJECTIVE
  To describe the characteristics and feasibility of a physician-directed ambulance destination-control program to reduce emergency department (ED) overcrowding, as measured by hospital ambulance diversion hours.
  
  
  METHODS
  This controlled trial took place in Rochester, New York and included a university hospital and a university-affiliated community hospital. During July 2003, emergency medical services (EMS) providers were asked to call an EMS destination-control physician for patients requesting transport to either hospital. The destination-control physician determined the optimal patient destination by using patient and system variables as well as EMS providers' and patients' input. Program process measures were evaluated to characterize the program. Administrative data were reviewed to compare system characteristics between the intervention program month and a control month.
  
  
  RESULTS
  During the intervention month, 2,708 patients were transported to the participating hospitals. EMS providers contacted the destination-control physician for 1,866 (69%) patients. The original destination was changed for 253 (14%) patients. Reasons for redirecting patients included system needs, patient needs, physician affiliation, recent ED or hospital care, patient wishes, and primary care physician wishes. During the intervention month, EMS diversion decreased 190 (41%) hours at the university hospital and 62 (61%) hours at the community hospital, as compared with the control month.
  
  
  CONCLUSIONS
  A voluntary, physician-directed destination-control program that directs EMS units to the ED most able to provide appropriate and timely care is feasible. Patients were redirected to maximize continuity of care and optimally use available emergency health care resources. This type of program may be effective in reducing overcrowding.
authors.affiliation: Department of Emergency Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA. manish_shah@urmc.rochester.edu
authors.forename: Manish N
authors.initials: MN
authors.lastname: Shah
authors.forename: Rollin J
authors.initials: RJ
authors.lastname: Fairbanks
authors.forename: Charles L
authors.initials: CL
authors.lastname: Maddow
authors.forename: E Brooke
authors.initials: EB
authors.lastname: Lerner
authors.forename: James I
authors.initials: JI
authors.lastname: Syrett
authors.forename: Eric A
authors.initials: EA
authors.lastname: Davis
authors.forename: Sandra M
authors.initials: SM
authors.lastname: Schneider
mesh_terms: D000552:Ambulances / Q000458:organization & administration; D004632:Emergency Medical Services / Q000458:organization & administration*; D004635:Emergency Medicine / Q000458:organization & administration*; D004636:Emergency Service, Hospital / Q000458:organization & administration; D006801:Humans; D008875:Middle Aged; D017146:Models, Organizational; D009518:New York; D008486:Physician Executives; D010865:Pilot Projects; D016730:Program Development; D015397:Program Evaluation