2019
DOI: 10.1016/j.orhc.2019.100224
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Accumulating priority queues versus pure priority queues for managing patients in emergency departments

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Cited by 22 publications
(13 citation statements)
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“…However, the arrival rate function λ(t) is roughly constant over periods of few hours [27,14,16,11]. Lognormal distributions for service times have already been reported in the literature [14,15,16,12]. The fact that the distribution of the sum of few independent, but not necessarily identical, lognormal random variables, could be approximated by a lognormal distribution [28], may explain the experimental findings when we only use two fitting parameters.…”
Section: Resultsmentioning
confidence: 81%
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“…However, the arrival rate function λ(t) is roughly constant over periods of few hours [27,14,16,11]. Lognormal distributions for service times have already been reported in the literature [14,15,16,12]. The fact that the distribution of the sum of few independent, but not necessarily identical, lognormal random variables, could be approximated by a lognormal distribution [28], may explain the experimental findings when we only use two fitting parameters.…”
Section: Resultsmentioning
confidence: 81%
“…In this case, MFPT gives us the average time to request an ambulance from another operational zone to answer the next emergency call when the primary equipment is busy (interdistrict dispatches). MFPT can also be a useful KPI in the decision-making process of emergency departments [11,12], where MFPT provides the average time to a shortage of intensive therapy beds when the FCFS discipline is used after the patient's triage.…”
Section: Introductionmentioning
confidence: 99%
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“…Aghsami et al (2021) applied a queueing-inventory model to a hospital blood inventory management case study. Due to enhancing the emergency health care systems, Cildoz et al (2019) designed a novel queue policy, the accumulative priority queue with the finite horizon (APQ-h) based on APQ. Their method considers the acuity level of patients and their waiting time, and the stage of healthcare treatment.…”
Section: Introductionmentioning
confidence: 99%
“…During the waiting time, the state of the low priority patient can become worse and he/she will need urgent treatment (becomes high priority customer). It is worth noting that in the recent paper [13] devoted to analysis of patients managing in emergency departments, the following is stated: "disciplines with changing priorities have been studied in the literature from a queuing theory point of view, which requires assumptions rarely found in real emergency departments, such as homogeneity in the patient arrival pattern and only one service stage." Assumptions about the BMMAP arrival process and phase type service (probably consisting of an arbitrary finite number of sequentially stages) made in our paper a better fit for modeling real emergency departments.…”
Section: Introductionmentioning
confidence: 99%