Comment letters to the National Commission on Commission on Fraudulent Financial Reporting, 1987 (Treadway Commission) Vol. 2

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Hospital production system modelling and simulation insight of operating theatre planning

The objective that hospital managers must reach is to optimise its production by meeting the customers' demands. The planning of material and human resources is achieved on the basis of health care expectations and by taking the heavy constraints of the personnel and materials into consideration. In this paper, we are more particularly interested in the operating theatre management. We are trying to improve the way the duration of an operation can be calculated according to the operated patient's profile. We first used rough sets method to determine the factors that are the most explanatory of a great change in the duration of operation. So, for a given pathology, we have at first created sets of patients with roughly the same duration of operation. On the basis of these sets, the rough set theory helped us to determine the profile of the patients included in these sets and thus to estimate the durations of operation of new patients according to their profiles and pathologies