Effect of bariatric surgery before pregnancy on the vascular function in the offspring: protocol of a cross-sectional follow-up study
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Updated: Jan 28, 2026

Assessment of Maternal Vascular Remodeling During Pregnancy in the Mouse Uterus
Published on: December 5, 2015
Karolien Van De Maele1,2, Inge Gies1, Roland Devlieger2,3
1Department of Pediatrics, Division of Pediatric Endocrinology, Universitair Ziekenhuis Brussel, Brussels, Belgium.
Insights
Maternal weight management before and during pregnancy significantly impacts offspring cardiovascular health. This study investigates long-term cardiovascular programming in children based on maternal weight status and interventions.
Area of Science:
- Pediatric Cardiology
- Metabolic Health
- Maternal Health
Background:
- Offspring of obese mothers face risks of metabolic, inflammatory, and cardiovascular issues.
- Long-term data on maternal weight changes' impact on offspring cardiovascular programming are limited.
Purpose of the Study:
- To assess the long-term cardiovascular programming in children based on maternal pre-pregnancy weight and interventions.
- To compare the effects of bariatric surgery versus lifestyle interventions on offspring cardiovascular health.
Main Methods:
- Cross-sectional cohort follow-up study of children from previously studied pregnancies.
- Four subgroups: children of normal weight, obese, lifestyle-intervention, and bariatric surgery mothers.
- Data includes questionnaires, anthropometry, bioimpedance, ultrasound, endothelial function (EndoPAT), and biomarkers.
Main Results:
- N/A - Study is pre-results.
Conclusions:
- N/A - Study is pre-results.
Background:
The offspring of obese pregnant women are at risk for adverse metabolic, inflammatory and cardiovascular programming. Comprehensive long-term data are lacking on the contribution of changes in maternal weight after bariatric surgery before pregnancy compared with lifestyle interventions during pregnancy on the cardiovascular programming of the offspring.
Methods:
EFFECTOR is designed as a cross-sectional cohort follow-up study targeting the children of different groups of women who were previously studied during their pregnancy. Four subgroups of children are identified, based on maternal weight characteristics during pregnancy: normal weight women, obese women without any intervention and obese women who underwent a lifestyle intervention during or bariatric surgery before pregnancy. Data collection is performed as a single study visit at home. Data on the sociodemographic situation, food habits and psychomotor development are obtained through questionnaires. During the home visit, extensive anthropometric and vascular assessment is performed. Information on body composition is provided by assessment of body weight and height, bioelectrical impedance analysis, skinfold measurements and ultrasound. Endothelial function is measured by non-invasive peripheral arterial tonometry (EndoPAT 2000). Biomarkers performed in blood and urinalysis conclude the data collection process.
Trial Registration Number:
NCT02992106 (Pre-results).
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