ArticleObesity surgery2015
Anemia after Roux-en-Y gastric bypass. How feasible to eliminate the risk by proper supplementation?
Article in Obesity surgery, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 2 of them syntheses that pooled it.
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Who cites it
7 citing papers in PubMed, 2 syntheses or guidelines pooled it, 22 citations in OpenAlex.
- Pooled it
- Oral Vitamin BObesity surgery · 2018Pooled it
- Iron Deficiency in Obesity and after Bariatric Surgery.Biomolecules · 2021Review
- British Obesity and Metabolic Surgery Society Guidelines on perioperative and postoperative biochemical monitoring and micronutrient replacement for patients undergoing bariatric surgery-2020 update.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2020Review
- Loss of Medicaid insurance after successful bariatric surgery: an unintended outcome.Surgical endoscopy · 2018Article
- Nutrient Deficiency 10 Years Following Roux-en-Y Gastric Bypass: Who's Responsible?Obesity surgery · 2017Article
- Metabolic Surgery in the Treatment Algorithm for Type 2 Diabetes: a Joint Statement by International Diabetes Organizations.Obesity surgery · 2017Article
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAnemia after Roux-en-Y gastric bypass (RYGB) has been reported in 5 to 64 % of patients. Since absorption of specific elements is reduced, proper supplementation is mandatory. The aim of this study was to investigate the frequency of anemia, its causes, and the related deficiencies during the 1st postoperative year after RYGB.
methodsA retrospective review of our prospectively collected database was performed. A total of 486 patients who underwent RYGB in a 5-year period and completed at least 1-year follow-up were included. Daily supplements as suggested by the AACE/TOS/ASMBS guidelines were routinely prescribed. Blood count, iron profile, folic acid, and B12 measurements 1 year after surgery were reviewed.
resultsOne hundred ninety-five males and 291 females were included, with a mean age of 39.9 ± 11.6 years and a mean body mass index (BMI) of 42.4 ± 6.3 kg/m(2). Anemia 1 year after surgery was found in 19 patients (4 %), 6 males and 13 females. In seven women, it was related to iron deficiency. Two additional women had iron deficiency combined with low vitamin B12. Anemia was secondary to inflammation in two and indeterminate in two. In the six males, the cause of anemia was inflammation in three and indeterminate in three. Abnormal bleeding was found in five of these patients.
conclusionsFrequency of anemia 1 year after RYGB in our population was low (4 %). Anemia non-attributable to malabsorption was frequently present (n = 9/19). Iron deficiency was found exclusively in women. The most common non-malabsorptive types of anemia were inflammation and dysfunctional uterine bleeding.
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