• Skip to main content
  • Skip to header right navigation
  • Skip to site footer

Log in
  • Search
    • Search All SAGES Content
    • Search SAGES Guidelines
    • Search the Video Library
    • Search the Image Library
    • Search the Abstracts Archive
www.sages.org

SAGES

Reimagining surgical care for a healthier world

  • Home
    • Search
    • SAGES Home
    • SAGES Foundation Home
  • About
    • Awards
    • Who Is SAGES?
    • Leadership
    • Our Mission
    • Advocacy
    • Committees
      • SAGES Board of Governors
      • Officers and Representatives of the Society
      • Committee Chairs and Co-Chairs
      • Committee Rosters
      • SAGES Past Presidents
  • Meetings
    • SAGES NBT Innovation Weekend
    • SAGES Annual Meeting
      • 2026 Scientific Session Call for Abstracts
      • 2026 Emerging Technology Call for Abstracts
    • CME Claim Form
    • SAGES Past, Present, Future, and Related Meeting Information
    • SAGES Related Meetings & Events Calendar
  • Join SAGES!
    • Membership Application
    • Membership Benefits
    • Membership Types
      • Requirements and Applications for Active Membership in SAGES
      • Requirements and Applications for Affiliate Membership in SAGES
      • Requirements and Applications for Associate Active Membership in SAGES
      • Requirements and Applications for Candidate Membership in SAGES
      • Requirements and Applications for International Membership in SAGES
      • Requirements for Medical Student Membership
    • Member Spotlight
    • Give the Gift of SAGES Membership
  • Patients
    • Join the SAGES Patient Partner Network (PPN)
    • Patient Information Brochures
    • Healthy Sooner – Patient Information for Minimally Invasive Surgery
    • Choosing Wisely – An Initiative of the ABIM Foundation
    • All in the Recovery: Colorectal Cancer Alliance
    • Find A SAGES Surgeon
  • Publications
    • Sustainability in Surgical Practice
    • SAGES Stories Podcast
    • Patient Information Brochures
    • Patient Information From SAGES
    • TAVAC – Technology and Value Assessments
    • Surgical Endoscopy and Other Journal Information
    • SAGES Manuals
    • MesSAGES – The SAGES Newsletter
    • COVID-19 Archive
    • Troubleshooting Guides
  • Education
    • Wellness Resources – You Are Not Alone
    • Avoid Opiates After Surgery
    • SAGES Subscription Catalog
    • SAGES TV: Home of SAGES Surgical Videos
    • The SAGES Safe Cholecystectomy Program
    • Masters Program
    • Resident and Fellow Opportunities
      • MIS Fellows Course
      • SAGES Robotics Residents and Fellows Courses
      • SAGES Free Resident Webinar Series
      • Fluorescence-Guided Surgery Course for Fellows
      • Fellows’ Career Development Course
    • SAGES S.M.A.R.T. Enhanced Recovery Program
    • SAGES @ Cine-Med Products
      • SAGES Top 21 Minimally Invasive Procedures Every Practicing Surgeon Should Know
      • SAGES Pearls Step-by-Step
      • SAGES Flexible Endoscopy 101
    • SAGES OR SAFETY Video Activity
  • Opportunities
    • Fellowship Recognition Opportunities
    • SAGES Advanced Flexible Endoscopy Area of Concentrated Training (ACT) SEAL
    • Multi-Society Foregut Fellowship Certification
    • Research Opportunities
    • FLS
    • FES
    • FUSE
    • Jobs Board
    • SAGES Go Global: Global Affairs and Humanitarian Efforts
  • OWLS/FLS
You are here: Home / Abstracts / Length of Stay Is a Predictor of Weight Loss in Patients With Gastric Bypass

Length of Stay Is a Predictor of Weight Loss in Patients With Gastric Bypass

Lucian Panait, MD, Graeme Rosenberg, Andrew J Duffy, MD, Kurt E Roberts, MD, Robert L Bell, MD. Yale School of Medicine

 

Introduction: Substantial and lasting weight loss is the major goal of bariatric surgery. A target of 50% excess weight loss (EWL) or more is considered successful if sustained. The EWL after laparoscopic Roux-Y gastric bypass (LRYGB) depends on several variables, specifically compliance with diet and exercise. We hypothesize that the length of hospital stay (LOS) following LRYGB reflects patient motivation and thus correlates with EWL at 1 year.

Methods: We reviewed longitudinally collected data regarding patients who underwent LRYGB by a single surgeon at our institution between August 2002 and August 2010. Follow-up data at 1 year were available for 564 patients. The EWL at 1 year was correlated with the LOS.

Results: Patients had an average age of 42.7 years and an average BMI of 50.7. Length of stay was 1 day in 43 patients, 2 days in 344 patients, 3 days in 109 patients and 4 days or more in 66 patients. The EWL at 1 year decreased as LOS increased as illustrated in Table 1. Statistical significance was achieved when comparing the EWL of the groups with LOS of 3 days vs. 2 days and LOS of 4 days vs. 3 days respectively (p<0.05).
 

LOS (days) EWL at 1 year (%)
Correlation between LOS and EWL at 1 year
1 69.5 ± 15.8
2 66.7 ± 16.3
3 61.9 ± 15.3*
4 or more 55.4 ± 17.4*

*p<0.05

Conclusion: Length of hospital stay is an early predictor of EWL at 1 year. Timely intervention in the patients whose LOS is longer may lead to increasing success in achieving optimal weight loss.


Session Number: Poster – Poster Presentations
Program Number: P425
View Poster

69

Share this:

  • Click to share on X (Opens in new window) X
  • Click to share on Facebook (Opens in new window) Facebook
  • Click to share on LinkedIn (Opens in new window) LinkedIn
  • Click to share on Pinterest (Opens in new window) Pinterest
  • Click to share on WhatsApp (Opens in new window) WhatsApp
  • Click to share on Reddit (Opens in new window) Reddit
  • Click to share on Pocket (Opens in new window) Pocket
  • Click to share on Mastodon (Opens in new window) Mastodon
  • Click to share on Threads (Opens in new window) Threads
  • Click to share on Bluesky (Opens in new window) Bluesky

Related


sages_adbutler_leaderboard

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!

  • Bluesky
  • X
  • Instagram
  • Facebook
  • YouTube

Copyright © 2025 · SAGES · All Rights Reserved

Important Links

Healthy Sooner: Patient Information

SAGES Guidelines, Statements, & Standards of Practice

SAGES Manuals