• Andreas Fügener, Guenther Michael Edenharter, Paskal Kiefer, Ulrike Mayr, Julian Schiele, Fabian Steiner, Rainer Kolisch, and Manfred Blobner.
• From the *Universitaeres Zentrum fuer Gesundheitswissenschaften am Klinikum Augsburg (UNIKA-T), School of Business and Economics, Universitaet Augsburg, Augsburg, Germany; †Klinik fuer Anaesthesiologie, Klinikum rechts der Isar der TU Muenchen, Munich, Germany; and ‡TUM School of Management, Technische Universitaet Muenchen, Munich, Germany.
• A A Case Rep. 2016 Mar 15; 6 (6): 172-80.

AbstractWith increasing organizational and financial pressure on hospitals, each individual surgical treatment has to be reviewed and planned thoroughly. Apart from the expensive operating room facilities, proper staffing and planning of downstream units, like the wards or the intensive care units (ICUs), should be considered as well. In this article, we outline the relationship between a master surgery schedule (MSS), i.e., the assignment of surgical blocks to medical specialties, and the bed demand in the downstream units using an analytical model. By using historical data retrieved from the clinical information system and a patient flow model, we applied a recently developed algorithm for predicting bed demand based on the MSSs for patients of 3 surgical subspecialties of a hospital. Simulations with 3 different MSSs were performed. The impact on the required amount of beds in the downstream units was analyzed. We show the potential improvements of the current MSS considering 2 main goals: leveling workload among days and reduction of weekend utilization. We discuss 2 different MSSs, one decreasing the weekend ICU utilization by 20% and the other one reducing maximum ward bed demand by 7%. A test with 12 months of real-life data validates the results. The application of the algorithm provides detailed insights for the hospital into the impact of MSS designs on the bed demand in downstream units. It allowed creating MSSs that avoid peaks in bed demand and high weekend occupancy levels in the ICU and the ward.

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