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Prevalence of nutrient deficiencies in bariatric patients.

Abstract

OBJECTIVE

The aims of this study were to determine the prevalence of nutrient deficiencies in patients who present for bariatric surgery, assess nutritional status after surgery, and compare these with preoperative levels.

METHODS

A retrospective study was conducted to identify preoperative and 1-year postoperative nutrition deficiencies in patients undergoing bariatric surgery. The screening included serum ferritin, vitamin D, vitamin B(12), homocysteine, folate, red blood cell folate, and hemoglobin. Results were available for 232 patients preoperatively and 149 patients postoperatively. Two-tailed chi(2) tests and paired-sample t tests were used.

RESULTS

Preoperatively, vitamin D deficiency was noted at 57%. The prevalence of abnormalities 1 year after roux-en-Y gastric bypass was higher compared with preoperative levels (P < .05). After surgery, anemia was detected in 17%, elevated homocysteine levels (women only) in 29%, low ferritin in 15%, low vitamin B(12) in 11%, and low RBC folate in 12%. Mean hemoglobin, ferritin, and RBC folate levels deteriorated significantly but remained well within normal ranges. The prevalence of vitamin D deficiencies decreased, but not significantly. In sleeve gastrectomy patients, mean ferritin levels decreased (P < .05), without any patient developing a deficiency.

CONCLUSION

Vitamin D deficiency is common among morbidly obese patients seeking bariatric surgery. Because the prevalence of micronutrient deficiencies persists or worsens postoperatively, routine nutrition screening, recommendation of appropriate supplements, and monitoring adherence are imperative in this population.

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  • Authors+Show Affiliations

    ,

    Department of Biomedical Science, University of Wollongong, Wollongong, Australia.

    ,

    Source

    MeSH

    Adult
    Aged
    Anemia, Iron-Deficiency
    Bariatric Surgery
    Chi-Square Distribution
    Deficiency Diseases
    Female
    Ferritins
    Folic Acid
    Hemoglobins
    Homocysteine
    Humans
    Iron
    Male
    Middle Aged
    Obesity, Morbid
    Postoperative Complications
    Prevalence
    Sex Factors
    Vitamin B Deficiency
    Vitamin D
    Vitamin D Deficiency
    Young Adult

    Pub Type(s)

    Journal Article

    Language

    eng

    PubMed ID

    19487104

    Citation

    Toh, Seok Yee, et al. "Prevalence of Nutrient Deficiencies in Bariatric Patients." Nutrition (Burbank, Los Angeles County, Calif.), vol. 25, no. 11-12, 2009, pp. 1150-6.
    Toh SY, Zarshenas N, Jorgensen J. Prevalence of nutrient deficiencies in bariatric patients. Nutrition. 2009;25(11-12):1150-6.
    Toh, S. Y., Zarshenas, N., & Jorgensen, J. (2009). Prevalence of nutrient deficiencies in bariatric patients. Nutrition (Burbank, Los Angeles County, Calif.), 25(11-12), pp. 1150-6. doi:10.1016/j.nut.2009.03.012.
    Toh SY, Zarshenas N, Jorgensen J. Prevalence of Nutrient Deficiencies in Bariatric Patients. Nutrition. 2009;25(11-12):1150-6. PubMed PMID: 19487104.
    * Article titles in AMA citation format should be in sentence-case
    TY - JOUR T1 - Prevalence of nutrient deficiencies in bariatric patients. AU - Toh,Seok Yee, AU - Zarshenas,Nazy, AU - Jorgensen,John, Y1 - 2009/05/31/ PY - 2008/07/17/received PY - 2009/02/04/revised PY - 2009/03/29/accepted PY - 2009/6/3/entrez PY - 2009/6/3/pubmed PY - 2010/2/17/medline SP - 1150 EP - 6 JF - Nutrition (Burbank, Los Angeles County, Calif.) JO - Nutrition VL - 25 IS - 11-12 N2 - OBJECTIVE: The aims of this study were to determine the prevalence of nutrient deficiencies in patients who present for bariatric surgery, assess nutritional status after surgery, and compare these with preoperative levels. METHODS: A retrospective study was conducted to identify preoperative and 1-year postoperative nutrition deficiencies in patients undergoing bariatric surgery. The screening included serum ferritin, vitamin D, vitamin B(12), homocysteine, folate, red blood cell folate, and hemoglobin. Results were available for 232 patients preoperatively and 149 patients postoperatively. Two-tailed chi(2) tests and paired-sample t tests were used. RESULTS: Preoperatively, vitamin D deficiency was noted at 57%. The prevalence of abnormalities 1 year after roux-en-Y gastric bypass was higher compared with preoperative levels (P < .05). After surgery, anemia was detected in 17%, elevated homocysteine levels (women only) in 29%, low ferritin in 15%, low vitamin B(12) in 11%, and low RBC folate in 12%. Mean hemoglobin, ferritin, and RBC folate levels deteriorated significantly but remained well within normal ranges. The prevalence of vitamin D deficiencies decreased, but not significantly. In sleeve gastrectomy patients, mean ferritin levels decreased (P < .05), without any patient developing a deficiency. CONCLUSION: Vitamin D deficiency is common among morbidly obese patients seeking bariatric surgery. Because the prevalence of micronutrient deficiencies persists or worsens postoperatively, routine nutrition screening, recommendation of appropriate supplements, and monitoring adherence are imperative in this population. SN - 1873-1244 UR - https://www.unboundmedicine.com/medline/citation/19487104/Prevalence_of_nutrient_deficiencies_in_bariatric_patients_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0899-9007(09)00182-8 DB - PRIME DP - Unbound Medicine ER -