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The modeling and simulation of inpatient healthcare systems comprising of multiple interconnected units of monitored care is a challenging task given the nature of clinical practices and procedures that regulate patient flow. Therefore, any related study on the properties of patient flow should (i) explicitly consider the modeling of patient movement rules in face of congestion, and (ii) examine the...
Health care capacity decisions are often based on average performance metrics such as utilization. However, such decisions can be misleading, as a large portion of the costs in service operations is due to the inability to provide service due to congestion. This paper will review sources of variation that affect inpatient care capacity and develop a series of models of patient flow in a health care...
Emergency managers have to develop plans for responding to disasters within their jurisdiction. This includes coordinating multiple independent agencies participating in the response. While much of this is currently done by use of intuition and expert judgment, models can be used to test assumptions and examine the impact of policies and resource levels. The autonomous nature of responders as well...
Effective scheduling of elective cases in an operating room suite is a challenging task due to inherent uncertainty and competing performance metrics. In this paper, we present a simulation model for the surgical suite within the VA Pittsburgh Health Care System (VAPHS) that is used to evaluate and optimize different scheduling policies. A flexible set of probabilistic scheduling rules is evaluated...
We propose an indifference-zone approach for a ranking and selection (R&S) problem with the goal of finding the best-subset from a finite number of competing simulated systems given a level of correct-selection probability. Here the “best” system refers to the system with the largest or smallest performance measures. We present a best-subset selection procedure that can effectively eliminate the...
Intensive Care Units (ICUs) are specialized healthcare delivery units for patients that require the highest level of monitored care. ICUs are typically integrated into larger healthcare facilities and their operation is dependent on the operational status of other inpatient units and departments of the host facility. As patients transition between units, a lack of available beds in a requested unit...
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