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Operating Theatre Scheduling to Minimize Waiting Times

Hamzehei Bajgiran, Amir Saman | 2012

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 43261 (01)
  4. University: Sharif University of Technology
  5. Department: Industrial Engineering
  6. Advisor(s): Akbari Jokar, Mohammad Reza
  7. Abstract:
  8. The most common procedure of operating theatre scheduling in hospitals consists of two major steps called assignment and sequencing. In the first step, patients are assigned to a so called block (part of an operating room time in a specific day). The sequencing step is usually executed a day before the pre-defined day. In this step, the head nurse makes a sequence of the operations while she consults with the relating surgeons and considers all of the conditions and then the patients are informed about their operation time. Although the head nurse does not have a biased look, surgeons usually believe that the schedule is unfair to them. Moreover, the schedule is prepared through trial and error that can not consider all of the interactions among the major parties (e.g. PACU). In this thesis, we develop the integer linear programming model of the Mehregan hospital at Qazvin, Iran for the second step. The problem can be described as determining the room and the time of operations with respect to the preferences of patients and surgeons. Besides, we want to minimize the overtime, movement of the facilities and level the PACU usage. Considering the complexity of the introduced model, it cannot be solved optimally in rational time for the real data. Consequently, we have applied the Simulated Annealing (SA) algorithm to solve it. Results of solving the model demonstrate promising improvement comparing with the current state that we can expect the entire stake holders (e.g. patients, surgeons, nurses, etc) to be satisfied with. However, in order to ensure the execution of the produced schedules, there is need to make some tight rules especially relating to the surgeons that is out of the scope of this thesis.
  9. Keywords:
  10. Planning ; Scheduling ; Operating room ; Waiting Time ; Operating Theatre

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