چكيده به لاتين
In emergency departments coordination and readiness in rescue affairs and provide care for patients play important roles in order to reduce the casualties and financial related issues.In this study, through employing optimization and mathematical modelling, we attempt to address and solve the operational and tactical problems that emergency departments (EDs). The most important of these problems is to optimize medical resources allocation including human resources in such an optimal way that allocation in emergency situation considering insufficient resources and increasing demand would be efficient. Moreover, an efficient and feasible scheduling appointment system to sort out the chaos and mess in emergency departments when crises happen is necessary. Therefore, in this study, through integrating allocation and scheduling problems in emergency departments when there is a deficiency in medical resources, we make an attempt to solve these challenges in EDs. To solve the multi-objective mathematical model, augmented epsilon constraint is employed. Using this solution method along with real data from a case study of Kowsar emergency department in Sanandaj, Iran, and then programming and solving it through GAMS, we reached out Pareto sets of solutions. The results showed that considering mid-level service providers (MLSPs) in EDs and budget constraint when integrating allocation and scheduling models will result in increased efficiency of the EDs, decreased total cost of the ED, decreased patient waiting time, and released a number of physicians to do more critical tasks within the ED and more importantly in related hospitals. Moreover, the results derived from the sensitivity analysis showed that the model proposed in this study to tackle problems in EDs is sensitive to changes in parameters- it responds to them logically and on desired pattern-and therefore it is an appropriate model.
Keywords: Allocation and scheduling medical resources, emergency department, multi-objective optimization, Mid-level service providers.
