Could we employ the queueing theory to improve efficiency during future mass causality incidents?

Chih Chuan Lin, Chin Chieh Wu, Chi Dan Chen, Kuan Fu Chen*

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

10 Scopus citations

Abstract

Background: Preparation for a disaster or accident-related mass casualty events is often based on experience. The objective measures or tools for evaluating decision-making and effectiveness during such events are underdeveloped. Queueing theory has been suggested to evaluate the effectiveness of mass causality incidents (MCI) plans. Objective: Using different types of real MCI, we aimed to determine if a queueing network model could be used as a tool to assist in preparing plans to address mass causality incidents. Methods: We collected information from two types of mass casualty events: a motor vehicle accident and a dust explosion. Patient characteristics, time intervals of every working station, numbers of physicians and nurses attending, and time required by physicians and nurses during these two MCIs were collected and used for calculation in a queueing network model. Balanced efficiency was determined by calculating the numbers of server, i.e., nurses and physicians, in the two MCIs. Results: Efficient patient flows were found in both MCIs. However, excessive medical manpower supply was revealed when the queueing network model was applied to assess the MCIs. The best fitting result, i.e., the most efficient man power utilization, can be calculated by the queueing network models. Furthermore, balanced efficiency may be a more suitable condition than the highest efficiency man power utilization when faced with MCIs. Conclusion: The queueing network model is a flexible tool that could be used in different types of MCIs to observe the degree of efficiency when handling MCIs.

Original languageEnglish
Article number41
JournalScandinavian Journal of Trauma, Resuscitation and Emergency Medicine
Volume27
Issue number1
DOIs
StatePublished - 11 04 2019

Bibliographical note

Publisher Copyright:
© 2019 The Author(s).

Keywords

  • Emergency department
  • Mass causality incidents
  • Queueing network

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