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Related Experiment Video

Updated: Jul 13, 2026

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke
09:21

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke

Published on: January 18, 2018

Small changes in operative time can yield discrete increases in operating room throughput.

Andreas R Seim1, Douglas M Dahl, Warren S Sandberg

  • 1Department of Production and Quality Engineering, Norwegian University of Science and Technology, Trondheim, Norway.

Journal of Endourology
|August 21, 2007
PubMed
Summary

Surgical operative time unexpectedly decreased, allowing for more cases per day. This increase in surgical throughput was linked to a new surgical fellow and a commitment to complete three cases daily.

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Area of Science:

  • Surgical efficiency and operating room management.
  • Laparoscopic surgery and surgical throughput analysis.

Background:

  • Operating room (OR) throughput is determined by perioperative efficiency and surgeon's operative time.
  • Operative time is generally considered resistant to deliberate reduction.

Purpose of the Study:

  • To test the hypothesis that gradual improvements in operative time enable a surgeon to perform more cases within scheduled hours.
  • To identify factors influencing surgical throughput and operative time.

Main Methods:

  • Statistical process control analysis of daily operative time and case numbers for a surgeon over one year.
  • Data collected from both high-throughput and conventional operating rooms for complex laparoscopic procedures.
  • Comparison of operative and nonoperative times between different OR environments.

Related Experiment Videos

Last Updated: Jul 13, 2026

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke
09:21

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke

Published on: January 18, 2018

Main Results:

  • A discrete 17-minute reduction in operative time was observed in both OR settings.
  • Surgical throughput increased from two to three cases per day in the high-throughput OR.
  • Performing three complex cases within regular hours was not feasible in conventional ORs due to longer operative and nonoperative times.

Conclusions:

  • Surgical operative time reduction was sudden, not gradual, leading to increased case volume.
  • The reduction coincided with the assignment of a new surgical fellow and an administrative goal.
  • Controllable factors beyond gradual improvement influence surgical throughput.