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

SAGES

Reimagining surgical care for a healthier world

  • Home
    • COVID-19 Annoucements
    • 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
    • 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
  • Meetings
    • NBT Innovation Weekend
    • SAGES Annual Meeting
      • 2023 Scientific Session Call For Abstracts
      • 2023 Emerging Technology Call For Abstracts
    • CME Claim Form
    • Industry
      • Advertising Opportunities
      • Exhibit Opportunities
      • Sponsorship Opportunities
    • Future Meetings
    • Past Meetings
      • SAGES 2022
      • SAGES 2021
    • 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
    • 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
    • Video Based Assessments (VBA)
    • Robotics Fellows Course
    • MIS Fellows Course
    • Facebook Livestreams
    • Free Webinars For Residents
    • SMART Enhanced Recovery Program
    • SAGES OR SAFETY Video
    • SAGES at Cine-Med
      • 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-Coming Soon!
    • 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
  • Store
    • “Unofficial” Logo Products
  • Log In

MAGNETIC ASSISTED LIVER RETRACTION IN BARIATRIC SURGERY

Andres Hanssen, MD, FACS1, Sergio Plotnikov, MD, FACS2, Geylor Acosta, MD, FACS2, Jose G Haddad2, Diego A Hanssen, MD, FACS2, Rafael A Hanssen, MS2. 1Universidad Metropolitana, 2Instituto Médico La Floresta

Background: Retraction of the left lobe of the liver to allow adequate exposure of GE junction is crucial in most of laparoscopic bariatric procedures, the object of this study is to assess our initial experience using magnetic assisted liver retraction during laparoscopic gastric bypasses, and sleeve gastrectomies.

Methods: Fifty patients underwent bariatric procedures using a magnetic device (IMANLAP™) to intend elevate the left lobe of the liver during the procedure, a clamp attached to a 15cm polyethylene tube was placed in the upper left crus, the tube was passed under the left lobe of the liver and holed with another clamp attached to a small magnet, that was captured with a big external magnet attached to a flexible arm over the skin in the epigastrium or the right upper quadrant.  In this group 36 procedures were sleeve gastrectomies (17 multiport, 9 single port and 10 reduced ports) and 14 were multiport gastric bypasses. The time employed to satisfactorily obtain adequate exposure with the magnetic system was compared with the time required to place a Nathanson´s retractor in fifty multiport bariatric procedures (26 sleeve gastrectomies and 24 gastric bypasses). Student independency test was used to compare the times required for liver retraction in both groups,

Results: Liver retraction was satisfactory in 34 out of the fifty patients  (68%), in the remaining 16 cases a standard Nathanson´s retractor was inserted trough a 5mm subxiphoideal wound and the procedure was completed. The average time required for the installation of the magnetic assisted liver retraction was 289,28 seconds, with a standard deviation of 36,79 seconds (289,28 ± 36,79), for a minimum time of 230 seconds and a maximum of 372 with an amplitude of 142 sec.

The average time required to the complete installation of the Nathanson´s retractor was 206,28 second, with a standard deviation of 19,51  (206,28 ± 19,51), for a minimum time 171 seconds and a maximum of 239 with an amplitude of 68 sec.

The results of the inferential test were: t = 9,995, with 48 degrees of freedom and a bilateral significance of .000  (p < .01),

Mean BMI in the magnetic assisted retraction group was 44kg/M2 (30-48) and 48 Kg/m2 in the Nathanson´s group (34,9-52,6).

Conclusions: Magnetic assisted liver retraction during bariatric procedures is feasible in many cases and can avoid the wound necessary to insert a regular liver retractor. The installation of the magnetic retraction is more time consuming than the installation of a Nathanson´s retractor, but seems to be particularly useful in single or reduced ports bariatric procedures. The development of more powerful magnets for this purpose may contribute to make the liver retraction successful in patients with heavy steatotic livers and or thick abdominal walls.


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

Abstract ID: 91053

Program Number: ETP867

Presentation Session: Emerging Technology iPoster Session (Non CME)

Presentation Type: Poster

86

Share this:

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

Related

« Return to SAGES 2018 abstract archive

Our Mission

Innovate, educate and collaborate to improve patient care.

Recently, on SAGES…

Critical View of Safety (CVS) Challenge QR Code

The SAGES Critical View of Safety Challenge – Donate Your Lap Chole Videos!

The Society of American Gastrointestinal and Endoscopic Surgeons is hosting the first Artificial Intelligence Data Challenge conducted by surgeons. The aim of this challenge is to generate a large and diverse dataset of laparoscopic cholecystectomy videos, annotated with respect to the subcomponents of the Critical View of Safety (CVS). Computer scientists from all over the […]

Respuesta de SAGES al Estudio NordICC sobre el beneficio de las colonoscopias de detección

SAGES desea aclarar los resultados del estudio NordICC y colocarlos en contexto de los esfuerzos de varias agencias nacionales para reducir el riesgo de cáncer colorrectal – la segunda causa de muerte por cáncer más frecuente en los Estados Unidos-, mediante la promoción de la detección y tratamiento oportuno de las lesiones.

SAGES Response to NordICC Study Regarding Benefit of Screening Colonoscopies

The NordICC Study recently published in The New England Journal of Medicine and widely reported on by media outlets has raised questions regarding the benefit of screening colonoscopy in lowering the risk of colorectal cancer and cancer-related deaths among otherwise healthy and symptom-free men and women aged 55 to 64. Provocative headlines and commentaries have […]

Contact SAGES

Society of American Gastrointestinal and Endoscopic Surgeons
11300 W. Olympic Blvd Suite 600
Los Angeles, CA 90064 USA
webmaster@sages.org
Tel: (310) 437-0544

Find Us Around the Web!

  • Facebook
  • Twitter
  • YouTube

Important Links

SAGES 2023 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