• 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

SIZE DOESN´T MATTER: VOLUME OF RESECTED STOMACH DOES NOT PREDICT WEIGHT LOSS 1 YEAR AFTER SLEEVE GASTRECTOMY

Patricio Cal, MD, Luciano Deluca, MD, Tomas Jakob, MD, Diego Lonardi, MD, Ezequiel Fernandez, MD. CRQO

Introduction: Sleeve gastrectomy has become the most performed bariatric surgery. Removing part of the stomach causes weight loss by restricting food intake and regulating the production of incretins, particularly ghrelin. However, prognostic factors to weight loss after sleeve gastrectomy have been difficult to find. The goal of this research was to study the correlation between the volume of resected stomach and weight loss.

Methods & Procedures: Volume of resected stomach of 217 patients undergoing sleeve gastrectomy was measured. A standard laparoscopic technique was used. Calibration was performed tightly around a 28 Fr bougie, and stapling started 4-6 cm from the pylorus. The standardized technique for measurement involved insufflation with a 14G catheter with saline solution to a pressure of 18 cmH2O immediately after removal of the specimen. Resected stomach’s volume, gender, age, BMI, height and % of total weight loss (%TWL) at 6 months and 1 year were prospectively recorded. Correlation between variables was analyzed with Pearson’s test and linear regression models. Comparison between groups was carried on with t-test or Chi-square test as required. A significance level of 0.05 was established.

Results: Out of 217 patients, 174 (80.2%) were female. Mean BMI was 45.7±6.2, height 1.62±0.09 m, age 43.9±9.5 years. Average resected stomach was 436.5±120 ml (95%CI 420-452 ml). Volume was significantly larger in men (525 vs 414 ml, p<0.0001). On the bivariate analysis, age and BMI were not correlated to volume, while a moderate correlation was found with height (Pearson r=0.35, P=0.0001; Linear regression F=31.1, P=0.00001, Adj R2=0.13; predicted volume 367 ml + 4.3 (height in cm)).

Follow up was 87.5% at 6 months and 79.3% at 1 year. No significant correlation was found between remnant volume and %TWL at 1 year (Pearson r=0.16, P=0.016; Linear regression F=5.8, P=0.016, Adj R2=0.04). 

Patients were divided into two groups according to resected gastric volume [group A (≤400 ml, n=101) and group B (>400 ml, n=116)]. After adjusting by gender, BMI and height, there was no significant difference between the two groups in %TWL at 6 months (27.9% vs 29.1%, P=0.2) or %TWL at 1 year (31.6% vs 32.6%, P=0.37).

Conclusion: Removed stomach was larger on men than women and its size slightly correlated to height. However, volume of resected stomach did not seem to have an incidence on short term-weight loss. Gastric size should not be considered as a prognostic factor for weight loss in patients undergoing sleeve gastrectomy.


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

Abstract ID: 86607

Program Number: P545

Presentation Session: iPoster Session (Non CME)

Presentation Type: Poster

39

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