title: Improving operating room efficiency by applying bin-packing and portfolio techniques to surgical case scheduling.
abstract: BACKGROUND
  An operating room (OR) department has adopted an efficient business model and subsequently investigated how efficiency could be further improved. The aim of this study is to show the efficiency improvement of lowering organizational barriers and applying advanced mathematical techniques.
  
  
  METHODS
  We applied advanced mathematical algorithms in combination with scenarios that model relaxation of various organizational barriers using prospectively collected data. The setting is the main inpatient OR department of a university hospital, which sets its surgical case schedules 2 wk in advance using a block planning method. The main outcome measures are the number of freed OR blocks and OR utilization.
  
  
  RESULTS
  Lowering organizational barriers and applying mathematical algorithms can yield a 4.5% point increase in OR utilization (95% confidence interval 4.0%-5.0%). This is obtained by reducing the total required OR time.
  
  
  CONCLUSIONS
  Efficient OR departments can further improve their efficiency. The paper shows that a radical cultural change that comprises the use of mathematical algorithms and lowering organizational barriers improves OR utilization.
authors: Department of Operating Rooms, Erasmus University Medical Center, Rotterdam, The Netherlands. j.vanoostrum@erasmusmc.nl
authors: Mark
authors: M
authors: Van Houdenhoven
authors: Jeroen M
authors: JM
authors: van Oostrum
authors: Erwin W
authors: EW
authors: Hans
authors: Gerhard
authors: G
authors: Wullink
authors: Geert
authors: G
authors: Kazemier
mesh_terms: D000465:Algorithms; D001071:Appointments and Schedules; D003198:Computer Simulation; D017598:Efficiency, Organizational / Q000191:economics; D017721:Hospital Costs; D006785:Hospitals, University / Q000191:economics / Q000458:organization & administration* / Q000706:statistics & numerical data; D006801:Humans; D017146:Models, Organizational; D009426:Netherlands; D009870:Operating Room Information Systems; D009873:Operating Rooms / Q000191:economics / Q000458:organization & administration* / Q000706:statistics & numerical data; D009936:Organizational Innovation; D017064:Process Assessment, Health Care; D011446:Prospective Studies; D013514:Surgical Procedures, Operative / Q000191:economics; D017748:Time Management; D014850:Waiting Lists