Assigning treatment rooms at the Emergency Department

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Abstract

Increasing efficiency at the Emergency Department (ED) reduces overcrowding. At the ED in typical Dutch Hospitals treatment rooms are mostly shared by two residents of different specialties: a Surgeon and an Internist. Each resident uses multiple rooms in parallel; while one patient awaits test results in a treatment room, the resident visits other patients. The assignment of rooms among the residents is often unbalanced, which affects the blocking probability and waiting and sojourn time of patients. Invoking a queueing model in a random environment, we analytically investigate expected sojourn times of (semi-urgent) patients for both types of residents for different room assignment policies and working routines of the residents. We determine the Pareto efficient policies and working routines for all performance measures. We conduct a Discrete Event Simulation to validate our model and present numerical results for a large Dutch teaching hospital and other illustrative cases.
Original languageEnglish
Pages (from-to)62-70
Number of pages9
JournalOperations research for health care
Volume8
DOIs
Publication statusPublished - Mar 2016

Keywords

  • MSC-60K25
  • Discrete Event Simulation
  • Emergency department
  • Queueing Theory

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