Identifying Kinematic Markers Associated with Intraoperative Stress during Surgical Training Tasks

Yi Zheng, Grey Leonard, Juan Tellez, Herbert Zeh, Ann Majewicz Fey

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Increased levels of stress can impair surgeon performance and patient safety during surgery. The aim of this study is to investigate the effect of short term stressors on laparoscopic performance through analysis of kinematic data. Thirty subjects were randomly assigned into two groups in this IRB-approved study. The control group was required to finish an extended-duration peg transfer task (6 minutes) using the FLS trainer while listening to normal simulated vital signs and while being observed by a silent moderator. The stressed group finished the same task but listened to a period of progressively deteriorating simulated patient vitals, as well as critical verbal feedback from the moderator, which culminated in 30 seconds of cardiac arrest and expiration of the simulated patient. For all subjects, video and position data using electromagnetic trackers mounted on the handles of the laparoscopic instruments were recorded. A statistical analysis comparing time-series velocity, acceleration, and jerk data, as well as path length and economy of volume was conducted. Clinical stressors lead to significantly higher velocity, acceleration, jerk, and path length as well as lower economy of volume. An objective evaluation score using a modified OSATS technique was also significantly worse for the stressed group than the control group. This study shows the potential feasibility and advantages of using the time-series kinematic data to identify the stressful conditions during laparoscopic surgery in near-real-time. This data could be useful in the design of future robot-assisted algorithms to reduce the unwanted effects of stress on surgical performance.

Original languageEnglish (US)
Title of host publication2021 International Symposium on Medical Robotics, ISMR 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665406222
DOIs
StatePublished - 2021
Externally publishedYes
Event2021 International Symposium on Medical Robotics, ISMR 2021 - Atlanta, United States
Duration: Nov 17 2021Nov 19 2021

Publication series

Name2021 International Symposium on Medical Robotics, ISMR 2021

Conference

Conference2021 International Symposium on Medical Robotics, ISMR 2021
Country/TerritoryUnited States
CityAtlanta
Period11/17/2111/19/21

ASJC Scopus subject areas

  • Mechanical Engineering
  • Control and Optimization
  • Surgery
  • Artificial Intelligence
  • Computer Science Applications
  • Biomedical Engineering

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