• Skip to primary navigation
  • Skip to main content
  • Skip to footer

SAGES

Reimagining surgical care for a healthier world

  • Home
    • Search
    • SAGES Home
    • SAGES Foundation Home
  • About
    • Who is SAGES?
    • SAGES Mission Statement
    • Advocacy
    • Strategic Plan, 2020-2023
    • Committees
      • Request to Join a SAGES Committee
      • SAGES Board of Governors
      • Officers and Representatives of the Society
      • Committee Chairs and Co-Chairs
      • Full Committee Rosters
      • SAGES Past Presidents
    • Donate to the SAGES Foundation
    • SAGES Store
    • Awards
      • George Berci Award
      • Pioneer in Surgical Endoscopy
      • Excellence In Clinical Care
      • International Ambassador
      • IRCAD Visiting Fellowship
      • Social Justice and Health Equity
      • Excellence in Community Surgery
      • Distinguished Service
      • Early Career Researcher
      • Researcher in Training
      • Jeff Ponsky Master Educator
      • Excellence in Medical Leadership
      • Barbara Berci Memorial Award
      • Brandeis Scholarship
      • Advocacy Summit
      • RAFT Annual Meeting Abstract Contest and Awards
    • “Unofficial” Logo Products
  • Meetings
    • NBT Innovation Weekend
    • SAGES Annual Meeting
      • 2024 Scientific Session Call For Abstracts
      • 2024 Emerging Technology Call For Abstracts
    • CME Claim Form
    • Industry
      • Advertising Opportunities
      • Exhibit Opportunities
      • Sponsorship Opportunities
    • Future Meetings
    • Related Meetings Calendar
  • Join SAGES!
    • Membership Benefits
    • Membership Applications
      • Active Membership
      • Affiliate Membership
      • Associate Active Membership
      • Candidate Membership
      • International Membership
      • Medical Student Membership
    • Member News
      • Member Spotlight
      • Give the Gift of SAGES Membership
  • Patients
    • Healthy Sooner – Patient Information for Minimally Invasive Surgery
    • Patient Information Brochures
    • Choosing Wisely – An Initiative of the ABIM Foundation
    • All in the Recovery: Colorectal Cancer Alliance
    • Find a SAGES Member
  • Publications
    • SAGES Stories Podcast
    • SAGES Clinical / Practice / Training Guidelines, Statements, and Standards of Practice
    • Patient Information Brochures
    • TAVAC – Technology and Value Assessments
    • Surgical Endoscopy and Other Journal Information
    • SAGES Manuals
    • SCOPE – The SAGES Newsletter
    • COVID-19 Annoucements
    • Troubleshooting Guides
  • Education
    • Wellness Resources – You Are Not Alone
    • OpiVoid.org
    • SAGES.TV Video Library
    • Safe Cholecystectomy Program
      • Safe Cholecystectomy Didactic Modules
    • Masters Program
      • SAGES Facebook Program Collaboratives
      • Acute Care Surgery
      • Bariatric
      • Biliary
      • Colorectal
      • Flexible Endoscopy (upper or lower)
      • Foregut
      • Hernia
      • Robotics
    • Educational Opportunities
    • HPB/Solid Organ Program
    • Courses for Residents
      • Advanced Courses
      • Basic Courses
    • Fellows Career Development Course
    • Robotics Fellows Course
    • MIS Fellows Course
    • Facebook Livestreams
    • Free Webinars For Residents
    • SMART Enhanced Recovery Program
    • SAGES OR SAFETY Video
    • SAGES Top 21 MIS Procedures
    • SAGES Pearls
    • SAGES Flexible Endoscopy 101
    • SAGES Tips & Tricks of the Top 21
  • Opportunities
    • NEW-Area of Concentrated Training Seal (ACT)-Advanced Flexible Endoscopy
    • SAGES Fellowship Certification for Advanced GI MIS and Comprehensive Flexible Endoscopy
    • Multi-Society Foregut Fellowship Certification
    • SAGES Research Opportunities
    • Fundamentals of Laparoscopic Surgery
    • Fundamentals of Endoscopic Surgery
    • Fundamental Use of Surgical Energy
    • Job Board
    • SAGES Go Global: Global Affairs and Humanitarian Efforts
  • Search
    • Search All SAGES Content
    • Search SAGES Guidelines
    • Search the Video Library
    • Search the Image Library
    • Search the Abstracts Archive
  • OWLS
  • Log In

Stray Energy in the Robotic System – Minimal and Without Clinical Impact

Douglas M Overbey, MD, MPH, Heather Carmichael, MD, Edward L Jones, Brandon Chapman, Luke Selby, Carlton Barnett, John T Moore, Thomas Robinson. University of Colorado

Objective: Stray energy transfer from surgical energy-based devices is a recognized mechanism for complications during laparoscopic operations.  With the increasing use of the surgical robot for laparoscopic operations, characterizing stray energy transfer in robotic surgery is vital.  The goal of this study was to quantify stray energy transfer within the robotic system by measuring energy transfer, heat transfer, and histologic cell damage in comparison to laparoscopic surgery.

Methods: A live porcine model was used with laparoscopic and robotic ports (DaVinci Si Robotic Surgery platform, Intuitive Surgical, Sunnyvale, CA) placed in standard cholecystectomy fashion. Energy transfer through the instrument was measured directly (milliamps) during activation with an oscilloscope. A thermal camera was used to measure surface temperature change nearest the tip of the instrument expected to absorb stray energy (inactive electrode: assistant grasper or camera). A standard L-hook was activated without touching tissue (open air activation) for five seconds on 30W coag mode (Force FX Generator, Covidien, Boulder, CO).  The inactive electrode was placed touching small bowel to simulate accidental thermal injury. The bowel tissue at the site of temperature change was immediately resected and examined histologically for tissue injury.  Student t-tests were used for all comparisons with a p-value less than 0.05 considered statistically significant.

Results: Comparison of the laparoscopic and robotic techniques are displayed in Table 1. Energy transfer was quantified using energy leak (per mA), which in these tests averaged 1.18 degree Celsius change (95% CI 1.05-1.31) at the inactive electrode.  Surface temperature heated to a maximum of 5.5 degrees Celsius, more in the robotic system than laparoscopy but still clinically negligible.  Pathology results from in vivo testing showed only thermal injury to the serosa without deeper mural injury.

Conclusions: Stray energy transfer occurs in both laparoscopic and robotic surgery in amounts that are measurable but without clinical relevance. The average change in tissue temperature is less than 2 degrees Celsius laparoscopically and less than 6 degrees robotically. While the robotic surgery appears to transfer more stray energy, no significant bowel injuries were caused in either group.


Presented at the SAGES 2017 Annual Meeting in Houston, TX.

Abstract ID: 88444

Program Number: P788

Presentation Session: iPoster Session (Non CME)

Presentation Type: Poster

53

Share this:

  • Twitter
  • Facebook
  • LinkedIn
  • Pinterest
  • WhatsApp
  • Reddit

Related

Hours & Info

11300 West Olympic Blvd, Suite 600
Los Angeles, CA 90064
1-310-437-0544
[email protected]
Monday - Friday
8am to 5pm Pacific Time

Find Us Around the Web!

  • Facebook
  • Twitter
  • YouTube

Important Links

SAGES 2024 Meeting Information

Healthy Sooner: Patient Information

SAGES Guidelines, Statements, & Standards of Practice

SAGES Manuals

 

  • taTME Study Info
  • Foundation
  • SAGES.TV
  • MyCME
  • Educational Activities

Copyright © 2023 Society of American Gastrointestinal and Endoscopic Surgeons