System N ) THE 36™ INTERNATIONAL CONFERENCE OF THE SYSTEM DYNAMICS SOCIETY
Dynamics
_Soci iet
REYKJAVIK, ICELAND
System Dynamics Applications in
Emergency Department for Waiting
Time Improvement
Stéphane Copin, Paris 1 Sorbonne
Tamin Hammadi, Paris 1 Sorbonne
University
Selmin Nurcan, Paris 1 Sorbonne University
0:00-
Problem Statement
* System of emergency departments of unscheduled
care, supposed to provide quick and appropriate
responses to life-threatening situations
- First responders in the event of a disaster
- Available at any time of the day...
- ...and every day of the year
* Waiting times for access to care in emergency
departments, is a major problem for health care
systems in the world
- Public concerns about long wait times for care,
- Effects of overcrowding are numerous
- Pressure on health workers and increased violence in
emergency services
0:30-
) Approach or Dynamic Hypothesis
* We want to tackle the problem by providing a systemic
vision of the treatment process of a patient
* From this systemic perspective, we can better understand
the role of various internal stakeholders, and the external
factors that contribute to long waiting times
- Our analysis was conducted from interview key people emergency
services (medical practitioners, nurses and coordinators of patient
flows)
- This collaborative approach helped to ensure ownership and
confidence in the model by those working in the system who could
help to adopt the model for decision-making at a later stage.
* The model can then be used to identify improvement
options, based on a more complete understanding of cause
and effect relationship
2:00-
System N
G2) Progress and Insights to Share
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inpatient beds + stay Effect
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ad tients sorted Waiting
complementary va
or re opinion gt Consultation With
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inED
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Waiting Time in
aN 7 Queue Length
—_— an Effect
Patients x“ Oe nee
to USS Patients Leave
i A pee ON
Causal loops of the main effects
determining wait times in an
emergency department
3:30-
