Protein malnutrition after Roux-en-Y gastric bypass: a challenging case and scoping review of the literature.
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- doi: 10.1016/j.soard.2022.12.032
- issn: 1550-7289
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info:eu-repo/semantics/altIdentifier/urn/urn:nbn:ch:serval-BIB_FBAEFCDE6D649
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S. Mantziari et al., « Protein malnutrition after Roux-en-Y gastric bypass: a challenging case and scoping review of the literature. », Serveur académique Lausannois, ID : 10.1016/j.soard.2022.12.032
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Although protein malnutrition (PM) is often reported after highly malabsorptive procedures, its exact incidence and mechanisms after Roux-en-Y gastric bypass (RYGB) are poorly understood. The aim of this study was to present a challenging clinical case of PM after RYGB and conduct a scoping review of the literature. Among the 18 studies with 3015 RYGB patients included in the review, the median incidence of PM was 1.7% (range, 0%-8.9%), and it was diagnosed 12 to 120 months after RYGB. The most common cause is insufficient oral intake of protein; however, in cases of persistent hypoalbuminemia, a thorough diagnostic workup needs to be performed. Risk factors for PM after RYGB include specific triggering events such as intractable vomiting and dysphagia, and a total alimentary limb length less than 250 to 300 cm.