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Updated: May 10, 2026

Roux-en-Y Gastric Bypass Operation in Rats
Published on: June 11, 2012
Three-decade metabolic outcome of neonatal gastrectomy and early Roux-en-Y
M A Stefater1, S A Xanthakos, J Johannigman
1Department of Pediatric and Thoracic Surgery, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, MLC 2023, Cincinnati, OH, 45229-3039, USA, margaret.stefater@childrens.harvard.edu.
Insights
Gastric surgery in early childhood can allow for normal growth, but may lead to low bone density in adulthood. Careful monitoring is essential for long-term health outcomes after such procedures.
Area of Science:
- Pediatric Surgery
- Gastroenterology
- Endocrinology
Background:
- Limited data exists on the long-term effects of major gastric surgery in early childhood.
- Adverse consequences on growth and development are often anticipated in pediatric patients undergoing gastrectomy.
- This case study examines a patient who underwent gastrectomy with Roux-en-Y esophagojejunostomy in early childhood.
Observation:
- The patient experienced normal growth velocity, paralleling the third percentile for age throughout development.
- Nutritional status was maintained with daily multivitamins and monthly vitamin B12 injections, with no overt deficiencies noted in adulthood.
- A dual-energy X-ray absorptiometry scan at age 31 revealed significantly low bone mineral density.
Findings:
- Despite complete stomach removal and reconstruction in early life, successful linear growth was achieved.
- Abnormal bone mineral density was detected in adulthood, irrespective of normal serum calcium and vitamin D levels.
- This highlights a potential long-term complication of early-life gastrectomy.
Implications:
- Early-life gastrectomy may not impede linear growth but can have lasting effects on bone health.
- Long-term monitoring for bone density is crucial in individuals who have undergone major gastric surgery in childhood.
- Further research is needed to understand the mechanisms and management of bone density reduction after pediatric gastrectomy.
Abstract:
Little information is available about long-term outcomes of major gastric surgery when performed very early in life and adverse consequences in growing children might be expected. In this case, gastrectomy with Roux-en-Y esophagojejunostomy was performed in early childhood. Despite stomach loss, growth velocity paralleled the third percentile for age during development. Maintained on a daily multivitamin and monthly B12 injections, no overt nutritional deficiencies were detected in adulthood. However, dual energy X-ray absorptiometry scan at age 31 revealed that the patient had abnormally low bone mineral density. This case study demonstrates that even after gastrectomy and reconstruction early in life, linear growth can be achieved. However, bone density can be adversely affected, even in the face of normal serum calcium and vitamin D levels.
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