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Updated: Sep 28, 2025

Roux-en-Y Gastric Bypass Operation in Rats
Published on: June 11, 2012
Medium-term complications in patients undergoing gastric bypass
José Luis Pereira-Cunill1, Ana Piñar-Gutiérrez1, Antonio Jesús Martínez-Ortega1
1Unidad de Nutrición, Unidad de Gestión Clínica de Endocrinología y Nutrición, Hospital Universitario Virgen del Rocío, Sevilla, Spain.
Objective:
To present our experience in the clinical follow-up of patients undergoing a gastric bypass.
Method:
Description of six cases under follow-up by our unit after undergoing a gastric bypass at another private centre.
Results:
The 6 patients presented complications, the most notable being the death of one patient due to severe malnutrition and the need for revision surgery in another for the same reason, destabilisation of type 1 diabetes mellitus in another patient and fat-soluble vitamin deficiency in all of them.
Conclusions:
There are few publications that support the safety of gastric bypass as a treatment for obesity. In our experience, it is a technique associated with a high rate of serious complications. As it is a technique that is not yet standardised, we consider that these cases should be operated on in centres where there is a multidisciplinary team with expertise in the management of possible complications, with close follow-up by surgeons and endocrinologists.
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