Anemia and iron deficiency before and after bariatric surgery
Abstract Background Iron deficiency and anemia are changes often associated with obesity. Bariatric surgery is responsible for increasing the iron loss and reducing its absorption. The objective of this study was to evaluate anemia and iron deficiency before and after bariatric surgery and to relate...
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| Veröffentlicht in: | Surgery for obesity and related diseases 2014, Vol.10 (1), p.49-54 |
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| creator | Salgado, Wilson, M.D., Ph.D Modotti, Caue Nonino, Carla Barbosa, Ph.D Ceneviva, Reginaldo, M.D |
| description | Abstract Background Iron deficiency and anemia are changes often associated with obesity. Bariatric surgery is responsible for increasing the iron loss and reducing its absorption. The objective of this study was to evaluate anemia and iron deficiency before and after bariatric surgery and to relate them to possible predisposing factors. Methods A retrospective study was conducted on obese patients submitted to open Roux-en-Y gastric bypass, in which clinical and laboratory data were obtained up to 48 months postoperatively. Patients were divided into groups according to the presence or absence of anemia and to the presence or absence of iron deficiency (even without anemia), and all data were compared between these groups. Results Preoperatively, 21.5% of patients had anemia and 20% had iron deficiency. The number of patients with anemia did not vary through the 4 years of the study, but ferritin levels significantly decreased with time ( P |
| doi_str_mv | 10.1016/j.soard.2013.06.012 |
| format | Article |
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Bariatric surgery is responsible for increasing the iron loss and reducing its absorption. The objective of this study was to evaluate anemia and iron deficiency before and after bariatric surgery and to relate them to possible predisposing factors. Methods A retrospective study was conducted on obese patients submitted to open Roux-en-Y gastric bypass, in which clinical and laboratory data were obtained up to 48 months postoperatively. Patients were divided into groups according to the presence or absence of anemia and to the presence or absence of iron deficiency (even without anemia), and all data were compared between these groups. Results Preoperatively, 21.5% of patients had anemia and 20% had iron deficiency. The number of patients with anemia did not vary through the 4 years of the study, but ferritin levels significantly decreased with time ( P <.01). Younger patients and patients with greater weight loss had a higher incidence of anemia. Female gender was a variable associated with a greater incidence of iron deficiency. Conclusions Anemia and iron deficiency are frequent in obese patients and must be treated before surgery. Medical and nutritional surveillance is important in the postoperative period of bariatric surgery. Management of each condition must be directed at correcting the 2 major sources of iron deficiency and anemia: food intolerance (mostly meat intolerance) and losses (frequently due to menstruation). These are the factors more related to iron deficient anemia.</description><identifier>ISSN: 1550-7289</identifier><identifier>EISSN: 1878-7533</identifier><identifier>DOI: 10.1016/j.soard.2013.06.012</identifier><identifier>PMID: 24071485</identifier><language>eng</language><publisher>United States: Elsevier Inc</publisher><subject>Adult ; Anemia ; Anemia - etiology ; Bariatric surgery ; Body Mass Index ; Dietary Supplements ; Female ; Ferrous Compounds - administration & dosage ; Gastric Bypass ; Gastroenterology and Hepatology ; Humans ; Iron - deficiency ; Male ; Obesity ; Obesity, Morbid - complications ; Obesity, Morbid - surgery ; Postoperative Care ; Postoperative Complications - etiology ; Preoperative Care ; Retrospective Studies ; Surgery ; Trace Elements - administration & dosage ; Weight Loss - physiology</subject><ispartof>Surgery for obesity and related diseases, 2014, Vol.10 (1), p.49-54</ispartof><rights>American Society for Bariatric Surgery</rights><rights>2014 American Society for Bariatric Surgery</rights><rights>Copyright © 2014 American Society for Bariatric Surgery. Published by Elsevier Inc. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c414t-850bef9b5a141ea70daff95ede0003f55422d6ea380ab12f14e979cdaa6c82163</citedby><cites>FETCH-LOGICAL-c414t-850bef9b5a141ea70daff95ede0003f55422d6ea380ab12f14e979cdaa6c82163</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S1550728913001895$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,4010,27900,27901,27902,65534</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24071485$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Salgado, Wilson, M.D., Ph.D</creatorcontrib><creatorcontrib>Modotti, Caue</creatorcontrib><creatorcontrib>Nonino, Carla Barbosa, Ph.D</creatorcontrib><creatorcontrib>Ceneviva, Reginaldo, M.D</creatorcontrib><title>Anemia and iron deficiency before and after bariatric surgery</title><title>Surgery for obesity and related diseases</title><addtitle>Surg Obes Relat Dis</addtitle><description>Abstract Background Iron deficiency and anemia are changes often associated with obesity. Bariatric surgery is responsible for increasing the iron loss and reducing its absorption. The objective of this study was to evaluate anemia and iron deficiency before and after bariatric surgery and to relate them to possible predisposing factors. Methods A retrospective study was conducted on obese patients submitted to open Roux-en-Y gastric bypass, in which clinical and laboratory data were obtained up to 48 months postoperatively. Patients were divided into groups according to the presence or absence of anemia and to the presence or absence of iron deficiency (even without anemia), and all data were compared between these groups. Results Preoperatively, 21.5% of patients had anemia and 20% had iron deficiency. The number of patients with anemia did not vary through the 4 years of the study, but ferritin levels significantly decreased with time ( P <.01). Younger patients and patients with greater weight loss had a higher incidence of anemia. Female gender was a variable associated with a greater incidence of iron deficiency. Conclusions Anemia and iron deficiency are frequent in obese patients and must be treated before surgery. Medical and nutritional surveillance is important in the postoperative period of bariatric surgery. Management of each condition must be directed at correcting the 2 major sources of iron deficiency and anemia: food intolerance (mostly meat intolerance) and losses (frequently due to menstruation). These are the factors more related to iron deficient anemia.</description><subject>Adult</subject><subject>Anemia</subject><subject>Anemia - etiology</subject><subject>Bariatric surgery</subject><subject>Body Mass Index</subject><subject>Dietary Supplements</subject><subject>Female</subject><subject>Ferrous Compounds - administration & dosage</subject><subject>Gastric Bypass</subject><subject>Gastroenterology and Hepatology</subject><subject>Humans</subject><subject>Iron - deficiency</subject><subject>Male</subject><subject>Obesity</subject><subject>Obesity, Morbid - complications</subject><subject>Obesity, Morbid - surgery</subject><subject>Postoperative Care</subject><subject>Postoperative Complications - etiology</subject><subject>Preoperative Care</subject><subject>Retrospective Studies</subject><subject>Surgery</subject><subject>Trace Elements - administration & dosage</subject><subject>Weight Loss - physiology</subject><issn>1550-7289</issn><issn>1878-7533</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkU1v1DAQhi0EoqXwC5BQjlwSZuw4cQ5Fqiq-pEocgLM1scfISzYpdoK0_x7vbuHAhdOMNO87H88I8RKhQcDuza7JCyXfSEDVQNcAykfiEk1v6l4r9bjkWkPdSzNciGc57wBUp3v5VFzIFnpsjb4U1zcz7yNVNPsqpmWuPIfoIs_uUI0clsSnEoWVUzVSirSm6Kq8pe-cDs_Fk0BT5hcP8Up8e__u6-3H-u7zh0-3N3e1a7Fda6Oh9BpGTdgiUw-eQhg0e4ayU9C6ldJ3TMoAjSgDtjz0g_NEnTMSO3UlXp_73qfl58Z5tfuYHU8Tzbxs2WI7DKg6g6ZI1Vnq0pJz4mDvU9xTOlgEe-Rmd_bEzR65Wehs4VZcrx4GbOOe_V_PH1BFcH0WcDnzV-Rk84kS-5jYrdYv8T8D3v7jd1Oco6PpBx8475YtzYWgRZulBfvl-Lrj51ABoBm0-g1r5ZPr</recordid><startdate>2014</startdate><enddate>2014</enddate><creator>Salgado, Wilson, M.D., Ph.D</creator><creator>Modotti, Caue</creator><creator>Nonino, Carla Barbosa, Ph.D</creator><creator>Ceneviva, Reginaldo, M.D</creator><general>Elsevier Inc</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>2014</creationdate><title>Anemia and iron deficiency before and after bariatric surgery</title><author>Salgado, Wilson, M.D., Ph.D ; Modotti, Caue ; Nonino, Carla Barbosa, Ph.D ; Ceneviva, Reginaldo, M.D</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c414t-850bef9b5a141ea70daff95ede0003f55422d6ea380ab12f14e979cdaa6c82163</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Adult</topic><topic>Anemia</topic><topic>Anemia - etiology</topic><topic>Bariatric surgery</topic><topic>Body Mass Index</topic><topic>Dietary Supplements</topic><topic>Female</topic><topic>Ferrous Compounds - administration & dosage</topic><topic>Gastric Bypass</topic><topic>Gastroenterology and Hepatology</topic><topic>Humans</topic><topic>Iron - deficiency</topic><topic>Male</topic><topic>Obesity</topic><topic>Obesity, Morbid - complications</topic><topic>Obesity, Morbid - surgery</topic><topic>Postoperative Care</topic><topic>Postoperative Complications - etiology</topic><topic>Preoperative Care</topic><topic>Retrospective Studies</topic><topic>Surgery</topic><topic>Trace Elements - administration & dosage</topic><topic>Weight Loss - physiology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Salgado, Wilson, M.D., Ph.D</creatorcontrib><creatorcontrib>Modotti, Caue</creatorcontrib><creatorcontrib>Nonino, Carla Barbosa, Ph.D</creatorcontrib><creatorcontrib>Ceneviva, Reginaldo, M.D</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Surgery for obesity and related diseases</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Salgado, Wilson, M.D., Ph.D</au><au>Modotti, Caue</au><au>Nonino, Carla Barbosa, Ph.D</au><au>Ceneviva, Reginaldo, M.D</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Anemia and iron deficiency before and after bariatric surgery</atitle><jtitle>Surgery for obesity and related diseases</jtitle><addtitle>Surg Obes Relat Dis</addtitle><date>2014</date><risdate>2014</risdate><volume>10</volume><issue>1</issue><spage>49</spage><epage>54</epage><pages>49-54</pages><issn>1550-7289</issn><eissn>1878-7533</eissn><abstract>Abstract Background Iron deficiency and anemia are changes often associated with obesity. Bariatric surgery is responsible for increasing the iron loss and reducing its absorption. The objective of this study was to evaluate anemia and iron deficiency before and after bariatric surgery and to relate them to possible predisposing factors. Methods A retrospective study was conducted on obese patients submitted to open Roux-en-Y gastric bypass, in which clinical and laboratory data were obtained up to 48 months postoperatively. Patients were divided into groups according to the presence or absence of anemia and to the presence or absence of iron deficiency (even without anemia), and all data were compared between these groups. Results Preoperatively, 21.5% of patients had anemia and 20% had iron deficiency. The number of patients with anemia did not vary through the 4 years of the study, but ferritin levels significantly decreased with time ( P <.01). Younger patients and patients with greater weight loss had a higher incidence of anemia. Female gender was a variable associated with a greater incidence of iron deficiency. Conclusions Anemia and iron deficiency are frequent in obese patients and must be treated before surgery. Medical and nutritional surveillance is important in the postoperative period of bariatric surgery. Management of each condition must be directed at correcting the 2 major sources of iron deficiency and anemia: food intolerance (mostly meat intolerance) and losses (frequently due to menstruation). These are the factors more related to iron deficient anemia.</abstract><cop>United States</cop><pub>Elsevier Inc</pub><pmid>24071485</pmid><doi>10.1016/j.soard.2013.06.012</doi><tpages>6</tpages></addata></record> |
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| subjects | Adult Anemia Anemia - etiology Bariatric surgery Body Mass Index Dietary Supplements Female Ferrous Compounds - administration & dosage Gastric Bypass Gastroenterology and Hepatology Humans Iron - deficiency Male Obesity Obesity, Morbid - complications Obesity, Morbid - surgery Postoperative Care Postoperative Complications - etiology Preoperative Care Retrospective Studies Surgery Trace Elements - administration & dosage Weight Loss - physiology |
| title | Anemia and iron deficiency before and after bariatric surgery |
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