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Variables affecting BMI evolution at 2 and 5 years after vertical banded gastroplasty
R Hernandez-Estefania1, D Gonzalez-Lamuño, M Garcia-Ribes
1Nutrition and Cardiovascular Risk Unit, University of Cantabria, Santander, 39011 Spain. hernandr@medi.unican.es
Obesity Surgery
|April 27, 2000
Summary
Vertical banded gastroplasty (VBG) initially reduces BMI, but weight regain occurs within five years. Lifestyle factors and pre-surgery BMI significantly influence long-term weight management outcomes in morbidly obese patients.
Area of Science:
- Bariatric surgery outcomes
- Obesity research
- Metabolic and endocrine disorders
Background:
- Vertical banded gastroplasty (VBG) is a bariatric procedure known for initial significant body mass index (BMI) reduction.
- Long-term effectiveness of VBG requires investigation into factors influencing sustained weight loss.
Purpose of the Study:
- To assess the long-term impact of intrinsic and extrinsic factors on BMI in morbidly obese patients post-VBG.
- To establish a reliable long-term weight-loss prognosis model for VBG patients.
Main Methods:
- A cohort of 67 morbidly obese patients undergoing VBG was followed for 5 years.
- BMI was monitored and correlated with demographic data (preoperative BMI, family history, age, gender) and lifestyle variables (physical activity, diet, occupation).
Main Results:
- Mean BMI decreased from 47.5 pre-surgery to 32.1 at 1 year, but increased to over 35 by year 5.
- Modifiable lifestyle factors demonstrated significant positive effects on BMI trajectory.
- Preoperative BMI and having obese parents were identified as intrinsic factors influencing long-term BMI evolution.
Conclusions:
- Long-term weight-loss prognosis after VBG is multifactorial.
- Individualized prognosis requires consideration of both intrinsic and modifiable extrinsic variables.
- Targeted interventions focusing on modifiable factors are crucial for sustained weight management post-VBG.