Prevalence of Vitamin D Depletion, and Associated Factors, among Patients Undergoing Bariatric Surgery in Southern Brazil

Vivan, Manoela Astolfi; Kops, Natália Luiza; Fülber, Elisa Ruiz; Souza, Anderson Castro de; Fleuri, Marco; Friedman, Rogério

doi:10.1007/s11695-019-03963-9

Cited by 20 publications

(18 citation statements)

References 69 publications

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“…Hypovitaminosis D is prevalent in patients who are candidates for bariatric surgery. It has been reported in 41-98% of preoperative patients (15). Previous studies reported prior to bariatric surgery, deficiency of vitamin D levels was perceived among 55.3% Brazilian obese population (15), 53.6% in Iranian ( 16), 75.7% Singaporean (17), and 97.5% in Austrian ( 18) obese patients.…”

Section: Discussionmentioning

confidence: 89%

Serum 25(OH) Vitamin D Levels in Severely Obese Patients Evaluated Before Bariatric Surgery

Gunhan¹,

Uygur²,

İmre³

et al. 2020

Turk J Endocrinol Metab

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Objective: Obesity is a risk factor for vitamin D deficiency, which is reported to be detected differently in each population. This study aimed to evaluate the 25(OH) vitamin D (25(OH)D) levels, intact parathormone (iPTH) levels, and their relationship with body mass index (BMI) in obese patients, screened prior to bariatric surgery. Material and Methods: This retrospective study comprised of 1.082 obese patients (41±10 years, female/male: 823/259) who were candidates for bariatric surgery. BMI, waist circumference (WC), serum 25(OH)D, iPTH, calcium, phosphorus values of these patients were recorded from patient files. Results: BMI, WC, iPTH, and 25(OH)D levels were 48±8.9 kg/m², 128±11.9 cm, 64±36 pg/mL, and 15±18 ng/mL, respectively. Mean 25(OH)D level of 79.1% of the patients belonged to the deficiency range. Very low 25(OH) vitamin D levels (<10 ng/mL) were witnessed among 40.9% (443/1.082) of the study group. Female obese subjects possessed significantly lower serum 25(OH)D levels as compared to male obese patients. Significant negative correlations were perceived between 25(OH)D levels and iPTH (r=-0.34, p<0.0001), BMI (r=-0.20, p<0.0001), and waist circumferences (r=-0.14, p=0.002) in the whole group. Multivariate analysis indicated that BMI to be an independent risk factor for vitamin D deficiency. Conclusion: A high rate of vitamin D deficiency was documented in our morbidly obese patients who were candidates for bariatric surgery. BMI is a determinant of 25(OH)D levels. It is essential to screen for vitamin D deficiency and possible osteomalacia among the candidates for bariatric surgery of obese patients and should be treated appropriately before bariatric surgery.

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Section: Discussionmentioning

confidence: 89%

Serum 25(OH) Vitamin D Levels in Severely Obese Patients Evaluated Before Bariatric Surgery

Gunhan¹,

Uygur²,

İmre³

et al. 2020

Turk J Endocrinol Metab

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“…This is in line with a systematic review including 33 observational studies that showed wide variations in the cut-off values used by studies to determine vitamin D deficiency [ 30 ]. The public health vitamin D food fortification or supplementation programs in Brazil are not mandatory [ 34 , 46 ], which is unusual among women receiving prenatal care from public service [ 34 ] and might be challenging due to the differing recommendations of vitamin D status, based on studies conducted in high latitude countries with older Caucasian populations [ 48 ]. Therefore, further studies are needed to deepen the discussion of optimal cut-offs for specific vitamin D levels for the Brazilian population [ 48 ].…”

Section: Discussionmentioning

confidence: 99%

“…A possible limitation of this study was that most of the articles showing vitamin D deficiency and insufficiency were conducted in the Southeast and South regions of the country (63%), which can be considered a bias with respect to obtaining an overview of the country. In most of the articles included in this systematic review, women who supplemented vitamin D were excluded from the study samples [ 34 , 37 , 38 , 40 , 41 , 43 , 45 , 46 , 47 , 48 ]. As well as not evaluating the dietary intake of vitamin D, not taking into consideration the use of supplements may be a bias in the study, as it may interfere with vitamin D metabolism [ 72 , 73 ].…”

Section: Discussionmentioning

confidence: 99%

Prevalence of Vitamin D and Calcium Deficiency and Insufficiency in Women of Childbearing Age and Associated Risk Factors: A Systematic Review and Meta-Analysis

et al. 2022

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Vitamin D deficiency and insufficiency as well as low serum calcium levels can trigger negative health outcomes in women of childbearing age. Therefore, we aimed to estimate the prevalence of serum vitamin D and calcium deficiencies and insufficiencies and associated risk factors in Brazilian women of childbearing age and to assess whether there are differences in prevalence according to regions of the country and the presence or absence of pregnancy. The systematic literature review was performed using the following databases: PubMed, LILACS, Embase, Scopus, and Web of Science. Cross-sectional, cohort, and intervention studies were included. Among pregnant women, the prevalence of vitamin D deficiency ranged from 0% to 27% and of vitamin D insufficiency from 33.9% to 70.4%. Among non-pregnant women, the prevalence of vitamin D deficiency ranged from 0% to 41.7% and of vitamin D insufficiency from 38.5% to 69.3%. We found a high prevalence of vitamin D deficiency and insufficiency in women of childbearing age, with insufficiency affecting more than half of these women. The highest prevalence of vitamin D deficiency and insufficiency was observed in the South region. It was not possible to assess the prevalence and factors associated with calcium deficiency.

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“…Su hidroxilación está regulada por un mecanismo de feedback en el que participa la hormona paratiroidea (PTH), que responde a las necesidades de calcio y de fósforo del organismo. Su acción a nivel del intestino y del hueso es de las más estudiadas, pero también actúa en múltiples tejidos que tienen receptores para la vitamina D (VDR) y la enzima para producir 1,25(OH) 2 -D. Esas acciones extraesqueléticas se expresan en la mayoría de las células y los tejidos del organismo, y modulan procesos celulares fundamentales, como la apoptosis, la resistencia a las infecciones, las enfermedades autoinmunes, los sistemas inmunológicos innato y adquirido, y la expresión de los genes relacionados con la destrucción de patógenos (47,48) .…”

Section: Vitaminas Liposolublesunclassified

Abordaje de las deficiencias nutricionales pre y poscirugía bariátrica: una revisión narrativa

Menéndez

Montemerlo

Martín

2022

rncm

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La obesidad es una enfermedad metabólica, crónica y multifactorial que requiere tratamiento escalonado y multidisciplinario. La cirugía bariátrica (CB) constituye una opción de tratamiento para pacientes con obesidad severa o enfermedades metabólicas asociadas. La tasa de complicaciones agudas poscirugía es baja debido a la incorporación de las técnicas miniinvasivas y al abordaje interdisciplinario.

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Prevalence of Vitamin D Depletion, and Associated Factors, among Patients Undergoing Bariatric Surgery in Southern Brazil

Cited by 20 publications

References 69 publications

Serum 25(OH) Vitamin D Levels in Severely Obese Patients Evaluated Before Bariatric Surgery

Serum 25(OH) Vitamin D Levels in Severely Obese Patients Evaluated Before Bariatric Surgery

Prevalence of Vitamin D and Calcium Deficiency and Insufficiency in Women of Childbearing Age and Associated Risk Factors: A Systematic Review and Meta-Analysis

Abordaje de las deficiencias nutricionales pre y poscirugía bariátrica: una revisión narrativa

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