• 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

A retrospective study on the pre-op medical & psychological predictors of “successful” and “unsuccessful” post-bariatric surgery patients

That Nam Tran S Ton, BS, Maria B J Chun, PhD, CHC, CPCA, Yosuke Mitsugi, MD, Racquel S Bueno, MD, Cedric S F Lorenzo, MD

University of Hawai’i John A. Burns School of Medicine, Department of Surgery at Queen’s Medical Center

STUDY OBJECTIVE
We are conducting a retrospective study to determine the pre-operative medical and psychological predictors of “successful” and “unsuccessful” post-bariatric surgery patients. Successful weight loss after RYGB/LRYGB is defined as ≥ 50 %EWL at one year. Unfortunately 15-20% do not reach this benchmark [1]. Long-term failure rates of RYGB/LRYGB have been reported to be as high as 20-35% [2]. Given the significant medical, psychological, and financial impact bariatric surgery has for obese patients, it is critical to be able to pre-operatively identify patient factors associated with successful long-term weight loss to guide patient selection and management for those at risk for weight loss failure. The objectives of the study are to develop profiles of three %EWL classes (those achieving >80%EWL, 50-80%EWL, or <50%EWL) and compare variables that may be implicated in long-term post-operative weight loss, including demographics, co-morbidities, psychiatric history, and Beck Depression Inventory-II (BDI-II) questionnaire scores.

METHODS DESCRIPTION
This is a retrospective case series study based at a bariatric center on Oahu, Hawaii involving patients who underwent RYGB/LRYGB surgery from January 1, 2006 to December 31, 2009 and had post-operative follow-up for at least two years. All surgical candidates were evaluated by the center’s bariatrician, psychologist, dietician, and surgeon, using medical interviews/exams and patient-reported questionnaires including the BDI-II. Patients were treated to medically optimize medical conditions that could interfere with post-operative outcomes. Approximately 400 candidates underwent RYGB/LRYGB, of which 185 patients had valid pre-operative BDI-II questionnaires and had at least two years of post-operative follow-up. We included both genders, all age groups, and all ethnicities. We excluded patients who were not from Oahu island. Study variables included patient demographics (e.g. gender, age, educational level), biometrics (e.g. measured weight, height; calculated BMI and %EWL), pre-operative medical co-morbidities, pre-operative psychiatric diagnoses, and scores for each answered question on the BDI-II. To analyze each BDI-II question, we conducted an exploratory factor analysis and proposed a three-factor model derived from the questionnaire to result in three independent variables for comparison. We stratified each patient according to their %EWL measured at the two-year post-operative follow-up visit in three %EWL classes: >80%EWL, 50-80%EWL, or <50%EWL. We compared our three %EWL study groups by each recorded variable with chi-square, ANOVA, and logistic regression analyses to determine possible significant factors.

CONCLUSIONS/EXPECTATIONS
At the conclusion of our study, we expect to achieve the following:

1. Identify the pre-operative medical and psychological characteristics that impact outcomes for post-RYGB/LRYGB patients.

2. Develop a profile of predictive “successful” and/or “unsuccessful” factors for long-term weight loss following RYGB/LRYGB.

We aim to use these findings to help individualize pre- and post-operative efforts to optimize a patient’s chance of achieving and maintaining long-term successful weight loss after bariatric surgery.

REFERENCES

1. Maggard, M.A., Shugarman, L.R., Suttorp. M., et al., Meta-analysis: surgical treatment of obesity. Ann Intern Med, 2005. 142:547–59.

2. Christou, N., Look, D., MacLean, L, Weight gain after short- and long-limb gastric bypass in patients followed for longer than 10 years. Ann Surg, 2005. 244:734–40.


Session: Posters/Distinction

Program Number: P006

186

Share this:

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

Related

« Return to SAGES 2013 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