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Changes in Iron Absorption After Roux-en-Y Gastric Bypass

Changes in Iron Absorption After Roux-en-Y Gastric Bypass Introduction Iron deficiency is one of the most common deficiencies that may occur after Roux-en-Y gastric bypass (RYGB). Little is known about the optimal treatment of post-RYGB iron deficiency. Aim The aim of this study is to evaluate the changes in iron absorption characteristics after RYGB for two oral iron formulations, one presented in tablet form and one as in the form of a solution. Method Iron absorption in 24 obese women was studied before and 1 month after RYGB. Twelve patients were tested with a single dose of 600 mg ferrous fumarate in tablet form (195 mg of elementary iron, group 1), and 12 patients received a single dose of 1390 mg ferrous gluconate as a solution (160 mg of elementary iron, group 2). Serum iron levels were measured before (T ) and every hour after ingestion of the supplement (T –T ). 1 9 Results Before surgery, iron absorption was similar for the two supplements (P = 0.71). However, RYGB was associated with a decrease in fumarate iron absorption (P < 0.001) but did not affect gluconate iron absorption (P = 0.13). Postoperative absorption of fumarate iron was significantly lower than gluconate iron at T1 (P < http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Obesity Surgery Springer Journals

Changes in Iron Absorption After Roux-en-Y Gastric Bypass

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References (25)

Publisher
Springer Journals
Copyright
Copyright © 2018 by Springer Science+Business Media, LLC, part of Springer Nature
Subject
Medicine & Public Health; Surgery
ISSN
0960-8923
eISSN
1708-0428
DOI
10.1007/s11695-017-3088-5
Publisher site
See Article on Publisher Site

Abstract

Introduction Iron deficiency is one of the most common deficiencies that may occur after Roux-en-Y gastric bypass (RYGB). Little is known about the optimal treatment of post-RYGB iron deficiency. Aim The aim of this study is to evaluate the changes in iron absorption characteristics after RYGB for two oral iron formulations, one presented in tablet form and one as in the form of a solution. Method Iron absorption in 24 obese women was studied before and 1 month after RYGB. Twelve patients were tested with a single dose of 600 mg ferrous fumarate in tablet form (195 mg of elementary iron, group 1), and 12 patients received a single dose of 1390 mg ferrous gluconate as a solution (160 mg of elementary iron, group 2). Serum iron levels were measured before (T ) and every hour after ingestion of the supplement (T –T ). 1 9 Results Before surgery, iron absorption was similar for the two supplements (P = 0.71). However, RYGB was associated with a decrease in fumarate iron absorption (P < 0.001) but did not affect gluconate iron absorption (P = 0.13). Postoperative absorption of fumarate iron was significantly lower than gluconate iron at T1 (P <

Journal

Obesity SurgerySpringer Journals

Published: Jan 11, 2018

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