IMPACT OF VITAMIN D AND CALCIUM DEFICIENCY IN THE BONES OF PATIENTS UNDERGOING BARIATRIC SURGERY: A SYSTEMATIC REVIEW.
Bariatric surgery is considered the most effective tool in the control and treatment of severe obesity, but patients undergoing this procedure are at increased risk of developing nutritional deficiencies by limiting the intake and absorption of many nutrients.



To assess the impact of vitamin D deficiency and calcium in bone in patients after gastric bypass in Roux-en-Y, pointing directly at the type of administration, doses and effects after surgery.



Was conducted a systematic review with articles related to the topic of the last 10 years searched in PubMed (US National Library of Medicine National Institutes of Health, Medline, Lilacs, Scielo and Cochrane using the headings "bariatric surgery", "bone", "obesity", "vitamin D '', "calcium" AND "absorption". Exclusion criteria to research on animals, smokers, pregnant women and patient treated with bisphosphonates.



Five articles were included in this review. All refer that bariatric surgery can lead to nutritional deficiencies and poor absorption of fats and fat-soluble vitamins and other micronutrients such as calcium.



Patients submitted to RYGB should make use of multivitamins and minerals especially vitamin D and calcium to prevent bone fractures. Monitoring, treatment and control of risk factors are essential to prevent complications after this operation.
Postgraduate Program in Public Health Dentistry; University of São Paulo, SP, Brazil.
Jefry Alberto Vargas
JA
Cabral
Postgraduate Program in Biological Sciences; University of São Paulo, SP, Brazil.
Gabriela Pereira de
GP
Souza
Postgraduate Program in Public Health Dentistry; University of São Paulo, SP, Brazil.
Juliana de Almeida
JA
Nascimento
Postgraduate Program in Biological Sciences; University of São Paulo, SP, Brazil.
Luis Fernando
LF
Simoneti
Postgraduate Program in Public Health Dentistry; University of São Paulo, SP, Brazil.
Carolina
C
Marchese
Department of Pediatric Dentistry, Orthodontics and Public Health, Bauru School of Dentistry, University of São Paulo, SP, Brazil.
Silvia Helena de Carvalho
SH
Sales-Peres
Scand J Gastroenterol. 1978;13(1):81-5
635450
Obes Surg. 2004 Jan;14(1):9-12
14980026
Am J Surg. 1997 Oct;174(4):431-8
9337169
Arq Bras Cir Dig. 2015;28 Suppl 1:56-60
26537276
Scand J Gastroenterol. 1984 Nov;19(8):1031-8
6335925
Clin Endocrinol (Oxf). 2009 Aug;71(2):176-83
19018785
AORN J. 2002 Oct;76(4):590, 593-604; quiz 606-8
12382465
Gastroenterology. 1984 Jul;87(1):123-9
6724254
Ann Intern Med. 1978 Aug;89(2):193-9
677580
Lancet. 1978 Jul 1;2(8079):1-4
78209
Curr Opin Clin Nutr Metab Care. 2004 Sep;7(5):569-75
15295278
Arq Bras Cir Dig. 2015;28(1):48-52
25861070
Obes Surg. 2008 Feb;18(2):145-50
18175194
Obesity (Silver Spring). 2006 Nov;14(11):1940-8
17135609
Scand J Gastroenterol. 1990 Sep;25(9):897-905
2218396
J Am Coll Surg. 2007 Aug;205(2):294-7
17660076
Arq Bras Endocrinol Metabol. 2010 Mar;54(2):233-8
20485914
Cleve Clin J Med. 2008 May;75(5):333-4, 336, 338 passim
18556875
Obes Surg. 2010 Jun;20(6):738-43
20369304
Arq Bras Cir Dig. 2016 Mar;29(1):38-42
27120738
Digestion. 1986;34(1):9-14
3486789
Ann Surg. 1979 Jun;189(6):785-90
453949
Int Surg. 2004 Jan-Mar;89(1):51-7
15085999
Am J Med. 1971 Apr;50(4):442-9
5572594
Ann Surg. 2004 Dec;240(6):975-82; discussion 982-3
15570203
Scand J Gastroenterol. 1980;15(3):343-8
7433894