title: Implementing emergency department observation units within a multihospital network.
abstract: BACKGROUND
  The proportion of emergency department (ED) chest pain patients who undergo an extended "rule out MI (myocardial infarction)" evaluation beyond the ED determines both the quality and cost of patient care. The higher an organization's rate of such evaluations, the lower the average miss rate for MI. Five of the 13 hospitals in the Voluntary Hospital Association Northeast multihospital network implemented ED observation units by June 1997 for outpatient rule out MI evaluations.
  
  
  RESULTS
  Compared with historical and case controls, the five hospitals with ED observation units had a higher observation rate (16% versus 0% [p < .001] and 2% [p < .001]) and a higher rule out MI evaluation rate (61% versus 46% [p < .01] and 45% [p < .01]), without a significantly higher admission rate (47% versus 46% and 45%). For the three hospitals with observation units that collected charge data during 1997 on a consecutive series of chest pain patients who had negative rule out MI evaluations, charges for patient services were lower for patients evaluated in the ED observation unit ($2,214.80 +/- $80.40) than in the hospital ($5,464.30 +/- $393.60).
  
  
  CONCLUSIONS
  ED observation units represent a cost-effective restructuring of the diagnostic approach to patients with acute chest pain. In an improvement of quality of patient care, a larger proportion of ED chest pain patients receive an extended evaluation than is possible with hospital admission as the only ED disposition option.
authors.affiliation: Department of Traumatology and Emergency Medicine, University of Connecticut School of Medicine, Farmington, USA. louisgraff@home.com
authors.forename: L
authors.initials: L
authors.lastname: Graff
authors.forename: M
authors.initials: M
authors.lastname: Prete
authors.forename: M
authors.initials: M
authors.lastname: Werdmann
authors.forename: E
authors.initials: E
authors.lastname: Monico
authors.forename: K
authors.initials: K
authors.lastname: Smothers
authors.forename: C
authors.initials: C
authors.lastname: Krivenko
authors.forename: R
authors.initials: R
authors.lastname: Maag
authors.forename: A
authors.initials: A
authors.lastname: Joseph
mesh_terms: D002637:Chest Pain / Q000175:diagnosis*; D003237:Connecticut; D003362:Cost-Benefit Analysis; D004636:Emergency Service, Hospital / Q000458:organization & administration*; D006801:Humans; D009203:Myocardial Infarction / Q000175:diagnosis*; D019370:Observation; D017063:Outcome Assessment, Health Care; D018710:Pain Clinics; D010343:Patient Admission