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Amelia CZ, Gwan CH, Qi TS, Seng JTC. Prevalence of vitamin D insufficiency in early pregnancies- a Singapore study. PLoS One 2024; 19:e0300063. [PMID: 38603703 PMCID: PMC11008890 DOI: 10.1371/journal.pone.0300063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Accepted: 02/21/2024] [Indexed: 04/13/2024] Open
Abstract
Vitamin D plays an essential role in bone and mineral metabolism. There is increased interest in understanding prevalence of Vitamin D deficiency in pregnancy as many studies report association of low vitamin D levels with obstetric complications and neonatal sequelae. There is a paucity of studies in Singapore evaluating levels of vitamin D levels during the first trimester of pregnancies. We aim to study the prevalence of vitamin D insufficiency in this population. Our study assessed vitamin D levels in these women. Vitamin D (Plasma 25(OH)D concentration) levels in multiracial women during the first trimester were collected via venepuncture at their booking antenatal visit. They were stratified into sufficient ≥30ng/ml, insufficient ≥20ng/ml and <30ng/ml, moderately deficient ≥10ng/ml and <20ng/ml and severely deficient <10ng/ml. 93 women were included in this study. Only 2.2% of our study population had sufficient vitamin D levels. In women who had insufficient levels, the heavier the weight, the more likely to be vitamin D deficient. Interestingly, we also note that the older the patient, the less likely they are to be deficient. In women with periconceptual multivitamin supplementation, the average vitamin D level for those with supplementation was 2.10ng/ml higher than those without. Majority of patients were recruited from a single study member's patient pool who were mostly Chinese. Prevalence of Vitamin D deficiency in general obstetric patients with higher BMI and darker skinned patients may be even lower in Singapore. The high prevalence of Vitamin D insufficiency in our patients prove that it is a prominent problem in our population. We aim to implement screening of vitamin D levels as part of antenatal investigations in the first trimester and recommend supplementation as required. We also hope to evaluate the association of low vitamin D levels with obstetric or neonatal complications further understanding its implications.
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Affiliation(s)
- Chua Zu’Er Amelia
- Department of Obstetrics and Gynaecology, KK Women’s and Children’s Hospital, Singapore, Singapore
| | - Chan Hiu Gwan
- Obstetrics and Gynaecology Academic Clinical Programme (OBGYN ACP), SingHealth Services, Singapore, Singapore
- Department of Paediatrics, Endocrinology Service, KK Women’s and Children’s Hospital, Singapore, Singapore
| | - Tan Shu Qi
- Department of Obstetrics and Gynaecology, KK Women’s and Children’s Hospital, Singapore, Singapore
| | - John Tee Chee Seng
- Department of Obstetrics and Gynaecology, KK Women’s and Children’s Hospital, Singapore, Singapore
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Li R, Han A, Hu Q, Liang W. Relationship between vitamin D deficiency and neonatal hypocalcemia: a meta-analysis. J Pediatr Endocrinol Metab 2023; 36:909-916. [PMID: 37632349 DOI: 10.1515/jpem-2023-0183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 08/15/2023] [Indexed: 08/28/2023]
Abstract
We aimed to explore the associations of neonatal hypocalcemia with neonatal vitamin D deficiency and maternal vitamin D deficiency. A comprehensive systematic literature search using PubMed and web of science was performed for relevant articles from inception to February 17th, 2023. We used odds ratio (OR) and 95 % confidence interval (CI) as effect sizes for our meta-analysis. Publication bias was evaluated using funnel plot, Begg's test, and Egger regression test. All the statistical analyses were performed using Stata 14.0. A total of 11 studies were included and analyzed, including 452 newborns with hypocalcemia and 2,599 newborns with normal serum calcium level. Our research results revealed that vitamin D deficiency in newborns may be related to the higher prevalence of hypocalcemia (OR: 2.87, 95 % CI: 1.17-7.04). In addition, maternal vitamin D deficiency might also be a risk factor for neonatal hypocalcemia (OR: 7.83, 95 % CI: 3.62-16.92). There was a significant correlation between vitamin D deficiency and neonatal hypocalcemia.This meta-analysis indicates that newborns with vitamin D deficiency have a higher risk of hypocalcemia, and maternal vitamin D level play a crucial role in this association. Vitamin D supplementation may have a positive effect in reducing the prevalence of neonatal hypocalcemia.
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Affiliation(s)
- Ruihan Li
- School of Public Health, Wuhan University, Wuhan, P.R. China
| | - Aojing Han
- School of Public Health, Wuhan University, Wuhan, P.R. China
| | - Qilin Hu
- School of Public Health, Wuhan University, Wuhan, P.R. China
| | - Wei Liang
- School of Public Health, Wuhan University, Wuhan, P.R. China
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Gora A, Singh P, Debnath E, Malhotra RK, Seth A. Daily vs. monthly oral vitamin D 3 for treatment of symptomatic vitamin D deficiency in infants: a randomized controlled trial. J Pediatr Endocrinol Metab 2023; 0:jpem-2023-0146. [PMID: 37192500 DOI: 10.1515/jpem-2023-0146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 04/19/2023] [Indexed: 05/18/2023]
Abstract
OBJECTIVES Compare the efficacy and safety of daily vs. monthly oral vitamin D3 in treating symptomatic vitamin D deficiency in infants. METHODS 90 infants with symptomatic vitamin D deficiency were randomized into Daily (D) [46 infants] and Bolus (B) [44 infants] groups to receive oral vitamin D3, daily (2000 IU/day) and bolus (60,000 IU/month) for three months respectively. Both groups received daily oral calcium @50 mg/kg/day. Serum calcium (Ca), phosphate (P), alkaline phosphatase (ALP), 25-hydroxy cholecalciferol [25(OH)D], parathyroid hormone (PTH) levels, urine calcium: creatinine ratio and radiological score were assessed at baseline, 4 and 12 weeks. At the end of 12 weeks, 78 infants were available for evaluation of efficacy and safety of both regimens. RESULTS Both regimens led to a statistically significant increase in Ca and P levels and fall in ALP and PTH levels from baseline to 4 and 12 weeks of therapy, with no inter-group difference. Infants in group D had statistically significant higher mean 25(OH)D levels as compared to group B at 4 weeks (group D 130.89 ± 43.43 nmol/L, group B - 108.25 ± 32.40 nmol/L; p - 0.012) and 12 weeks (group D - 193.69 ± 32.47 nmol/L, group B - 153.85 ± 33.60 nmol/L; p<0.001). Eight infants [group D - 6/41 (14.6 %); group B - 2/37 (5.4 %), p=0.268] developed mild asymptomatic hypercalcemia without hypercalciuria at 12 weeks that corrected spontaneously within a week. CONCLUSIONS Both daily and monthly oral vitamin D3 in equivalent doses are efficacious and safe for treating symptomatic vitamin D deficiency in infants.
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Affiliation(s)
| | - Preeti Singh
- Department of Pediatrics, Lady Hardinge Medical College, New Delhi, India
| | - Ekta Debnath
- Department of Biochemistry, Lady Hardinge Medical College, New Delhi, India
| | - Rajeev Kumar Malhotra
- Department of Delhi Cancer Registry, BR Ambedkar IRCH, All India Institute of Medical Sciences, New Delhi, India
| | - Anju Seth
- Department of Pediatrics, Lady Hardinge Medical College, New Delhi, India
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4
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Indian Academy of Pediatrics Revised (2021) Guidelines on Prevention and Treatment of Vitamin D Deficiency and Rickets. Indian Pediatr 2021. [DOI: 10.1007/s13312-022-2448-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Seymen-Karabulut G, Günlemez A, Gökalp AS, Hatun Ş, Kaya Narter F, Mutlu M, Kader Ş, Terek D, Hanta D, Okulu E, Karadeniz L, Kanmaz Kutman HG, Zenciroğlu A, Özdemir ÖMA, Sarıcı D, Çelik M, Demir N, Turan Ö, Çelik K, Kılıçbay F, Uslu S, Erol S, Ertuğrul S, Er İ, Çelik HT, Çetinkaya M, Aktürk-Acar F, Aslan Y, Tunç G, Güran Ö, Engin Arısoy A. Vitamin D Deficiency Prevalence in Late Neonatal Hypocalcemia: A Multicenter Study. J Clin Res Pediatr Endocrinol 2021; 13:384-390. [PMID: 34013710 PMCID: PMC8638626 DOI: 10.4274/jcrpe.galenos.2020.2021.0169] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
OBJECTIVE Late neonatal hypocalcemia (LNH) is a common metabolic problem associated with hypoparathyroidism, high phosphate intake and vitamin D deficiency, often presenting with seizures. In this cross-sectional study, we aimed to evaluate the role of vitamin D deficiency in LNH in Turkey and to describe the characteristics of affected newborns. METHODS Conducted with a cross-sectional design and with the participation of 61 neonatal centers from December 2015 to December 2016, the study included term neonates with LNH (n=96) and their mothers (n=93). Data were registered on the FAVOR Web Registry System. Serum samples of newborns and mothers were analyzed for calcium, phosphate, magnesium, albumin, alkaline phosphatase, intact parathyroid hormone (iPTH) and 25 hydroxyvitamin D [25(OH)D] levels. RESULTS The median (range) onset time of hypocalcemia was 5.0 (4.0-8.0) days of age, with a male preponderance (60.4%). The median (range) serum 25(OH)D levels of the neonates and their mothers were 6.3 (4.1-9.05) and 5.2 (4.7-8.8) ng/mL, respectively. The prevalence of vitamin D deficiency (<12 ng/mL) was high in both the neonates (86.5%) and mothers (93%). Serum 25(OH)D levels of the infants and mothers showed a strong correlation (p<0.001). While the majority (93.7%) of the neonates had normal/high phosphorus levels, iPTH levels were low or inappropriately normal in 54.2% of the patients. CONCLUSION Vitamin D deficiency prevalence was found to be high in LNH. Efforts to provide vitamin D supplementation during pregnancy should be encouraged. Evaluation of vitamin D status should be included in the workup of LNH.
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Affiliation(s)
- Gülcan Seymen-Karabulut
- University of Health Sciences Turkey, Ümraniye Training and Research Hospital, Clinic of Pediatrics, Division of Pediatric Endocrinology, İstanbul, Turkey
| | - Ayla Günlemez
- Kocaeli University Faculty of Medicine, Department of Pediatrics, Division of Neonatology, Kocaeli, Turkey
| | - Ayşe Sevim Gökalp
- Kocaeli University Faculty of Medicine, Department of Pediatrics, Division of Neonatology, Kocaeli, Turkey
| | - Şükrü Hatun
- Koç University Faculty of Medicine, Department of Pediatrics, Division of Pediatric Endocrinology, İstanbul, Turkey
| | - Fatma Kaya Narter
- Dr. Lütfi Kırdar Training and Research Hospital, Clinic of Pediatrics, Division of Neonatology, İstanbul, Turkey
| | - Mehmet Mutlu
- Karadeniz Technical University Faculty of Medicine, Department of Pediatrics, Division of Neonatology, Trabzon, Turkey
| | - Şebnem Kader
- Trabzon Kanuni Training and Research Hospital, Clinic of Pediatrics, Division of Neonatology, Trabzon, Turkey
| | - Demet Terek
- Ege University Faculty of Medicine, Department of Pediatrics, Division of Neonatology, İzmir, Turkey
| | - Deniz Hanta
- Adana Women and Children Hospital, Clinic of Pediatrics, Division of Neonatology, Adana, Turkey
| | - Emel Okulu
- Ankara University Faculty of Medicine, Department of Pediatrics, Division of Neonatology, Ankara, Turkey
| | - Leyla Karadeniz
- University of Health Sciences Turkey, Ümraniye Training and Research Hospital, Clinic of Pediatrics, Division of Neonatology, İstanbul, Turkey
| | - H Gözde Kanmaz Kutman
- Zekai Tahir Burak Maternity Training and Research Hospital, Clinic of Pediatrics, Division of Neonatology, Ankara, Turkey
| | - Ayşegül Zenciroğlu
- University of Health Sciences Turkey, Ankara Dr. Sami Ulus Maternity Women and Children Training and Research Hospital, Clinic of Pediatrics, Division of Neonatology, Ankara, Turkey
| | - Özmert M. A. Özdemir
- Pamukkale University Faculty of Medicine, Department of Pediatrics, Division of Neonatology, Denizli, Turkey
| | - Dilek Sarıcı
- Keçiören Training and Research Hospital, Clinic of Pediatrics, Division of Neonatology, Ankara, Turkey
| | - Muhittin Çelik
- Diyarbakır Children Hospital, Clinic of Pediatrics, Division of Neonatology, Diyarbakır, Turkey
| | - Nihat Demir
- Van Yüzüncü Yıl University Faculty of Medicine, Department of Pediatrics, Division of Neonatology, Van, Turkey
| | - Özden Turan
- Başkent University Faculty of Medicine, Department of Pediatrics, Division of Neonatology, Ankara, Turkey
| | - Kıymet Çelik
- Dr. Behçet Uz Children Training and Research Hospital, Clinic of Pediatrics, Division of Neonatology, İzmir, Turkey
| | - Fatih Kılıçbay
- Kocaeli University Faculty of Medicine, Department of Pediatrics, Division of Neonatology, Kocaeli, Turkey
| | - Sinan Uslu
- Şişli Hamidiye Etfal Training and Research Hospital, Clinic of Pediatrics, Division of Neonatology, İstanbul, Turkey
| | - Sara Erol
- Etlik Zübeyde Hanım Maternity Training and Research Hospital, Clinic of Pediatrics, Division of Neonatology, Ankara, Turkey
| | - Sabahattin Ertuğrul
- Dicle University Faculty of Medicine, Department of Pediatrics, Division of Neonatology, Diyarbakır, Turkey
| | - İlkay Er
- Derince Training and Research Hospital, Clinic of Pediatrics, Division of Neonatology, Kocaeli, Turkey
| | - Hasan Tolga Çelik
- acettepe University Faculty of Medicine, Department of Pediatrics, Division of Neonatology, Ankara, Turkey
| | - Merih Çetinkaya
- Kanuni Training and Research Hospital, Clinic of Pediatrics, Division of Neonatology, İstanbul, Turkey
| | - Filiz Aktürk-Acar
- Karadeniz Technical University Faculty of Medicine, Department of Pediatrics, Division of Neonatology, Trabzon, Turkey
| | - Yakup Aslan
- Trabzon Kanuni Training and Research Hospital, Clinic of Pediatrics, Division of Neonatology, Trabzon, Turkey
| | - Gaffari Tunç
- Ankara University Faculty of Medicine, Department of Pediatrics, Division of Neonatology, Ankara, Turkey
| | - Ömer Güran
- University of Health Sciences Turkey, Ümraniye Training and Research Hospital, Clinic of Pediatrics, Division of Neonatology, İstanbul, Turkey
| | - Ayşe Engin Arısoy
- Kocaeli University Faculty of Medicine, Department of Pediatrics, Division of Neonatology, Kocaeli, Turkey
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Sharma D, Agrawal S. An Infant with Recurrent Hypocalcemic Seizures. Neoreviews 2021; 22:e544-e547. [PMID: 34341162 DOI: 10.1542/neo.22-8-e544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Deepak Sharma
- Cradle Children Hospital, Vaishali Nagar, Jaipur, Rajasthan, India
| | - Sunil Agrawal
- Cradle Children Hospital, Vaishali Nagar, Jaipur, Rajasthan, India
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Lo TH, Wu TY, Li PC, Ding DC. Effect of Vitamin D supplementation during pregnancy on maternal and perinatal outcomes. Tzu Chi Med J 2019; 31:201-206. [PMID: 31867246 PMCID: PMC6905233 DOI: 10.4103/tcmj.tcmj_32_19] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 04/07/2019] [Accepted: 05/15/2019] [Indexed: 01/04/2023] Open
Abstract
Vitamin D deficiency is common globally with a higher prevalence in women, especially during pregnancy. Among the pregnant women, Vitamin D deficiency was reported up to 80% in the Asian group. Vitamin D deficiency was related to a higher risk of maternal complications including preeclampsia, impaired glucose tolerance, and cesarean section rate, and neonatal complications including low birthweight, neonatal hypocalcemia seizure, and impaired skeletal, lung and immune development. There were no data supporting Vitamin D deficiency screening routinely in pregnancy regarding cost-effectiveness or health benefits. The measurement of Vitamin D in the high-risk group of women is necessary. Subsequent supplement with Vitamin D with and without calcium supplement during pregnancy had been statistically significantly reported to decrease the risk of preeclampsia, preterm birth, and low birth body weight. However, due to a lack of studies, the strategies of dietary and nutritional supplement for fetal growth restriction prevention are not statistically effective and are not yet recommended. The present review is to provide an overview of the clinical and the experimental evidence of Vitamin D deficiency-related complication and review of available options for the prevention and management of these complications.
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Affiliation(s)
- Tzu-Hui Lo
- School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Ting-Yu Wu
- School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Pei-Chen Li
- Department of Obstetrics and Gynecology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation and Tzu Chi University, Hualien, Taiwan
| | - Dah-Ching Ding
- Department of Obstetrics and Gynecology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation and Tzu Chi University, Hualien, Taiwan.,Institute of Medical Science, Tzu Chi University, Hualien, Taiwan
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Gowda VK, Kulhalli P, Benakappa N, Benakappa A. Etiological Profile of Afebrile Seizures in Infants in a Tertiary Care Center from southern India. J Pediatr Neurosci 2019; 14:82-85. [PMID: 31516625 PMCID: PMC6712918 DOI: 10.4103/jpn.jpn_61_18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Introduction Seizure is the most common neurological illness in pediatric population and its risk is highest in the first year of life. Studies regarding etiology of afebrile seizures worldwide and in India are limited; hence, the current study was undertaken. Objective The objective of this work was to study the etiology of afebrile seizures in infants aged 1 month to 1 year. Materials and Methods A retrospective study of afebrile infantile seizure was conducted at pediatric neurology outpatient department between January 2015 and September 2017. All children with first episode of afebrile seizures were included. Biochemical and hematological investigations, imaging, and electroencephalogram were performed whenever necessary. Simple descriptive statistics were used to analyze the data in the form of frequencies with percentages and median as applicable. Results One hundred twenty-one children with a mean age of 8.1 months were analyzed. Of these children, 58% were males. Positive family history was found in 1.65% children, developmental delay in 70%, and dysmorphism in 8%. Presenting seizure type were generalized (74%), focal (21%), and unknown (6%) onset. Etiology was deducible in 92% cases. Structural etiology was the most common (66%), followed by metabolic (12%), infections (7%), and others (6%). In structural pathology, common causes were perinatal insult (38%) and cerebral malformations (18%). Imaging was done in 98 cases and yield was 83% (85 cases). Conclusion Etiology was deducible in 92% of children. Seizures due to structural etiology, secondary to perinatal insult followed by metabolic and infections, are important causes. Imaging aids are important in etiological diagnosis. Etiological evaluation should be considered in children following first episode of afebrile seizures, especially in developing countries like India.
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Affiliation(s)
- Vykuntaraju K Gowda
- Department of Pediatric Neurology, Indira Gandhi Institute of Child Health, Bengaluru, Karnataka, India
| | - Preeti Kulhalli
- Department of Pediatrics, Indira Gandhi Institute of Child Health, Bengaluru, Karnataka, India
| | - Naveen Benakappa
- Department of Pediatrics, Indira Gandhi Institute of Child Health, Bengaluru, Karnataka, India
| | - Asha Benakappa
- Department of Pediatrics, Indira Gandhi Institute of Child Health, Bengaluru, Karnataka, India
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Marwaha RK, Dabas A. Interventions for Prevention and Control of Epidemic of Vitamin D Deficiency. Indian J Pediatr 2019; 86:532-537. [PMID: 30648226 DOI: 10.1007/s12098-019-02857-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 01/02/2019] [Indexed: 02/07/2023]
Abstract
Vitamin D deficiency (VDD) remains a significant health challenge globally with its overwhelming effects on skeletal growth and varied associations with extra-skeletal diseases. The last decade has reported a high prevalence of VDD in all age-groups across all zones of India. Children and adolescents are most vulnerable to ill-effects of VDD as peak linear growth and bone mass accrual occurs during these years. Vitamin D deficiency in mothers predisposes their infants to have low serum vitamin D levels. Indians have increased susceptibility to develop VDD due to predominant vegetarian dietary habits, high melanin skin content, atmospheric pollution, modest tradition of clothing and limited availability of fortified foods. Vitamin D supplementation during infancy and childhood has emerged as an effective strategy to combat VDD. However, effects of vitamin D supplementation are transient and are not cost-effective as a maintenance strategy. Fortification of foodstuffs has been adopted by many developed countries globally which has emerged as a safe, efficacious and cost-effective strategy to control VDD. A strong political will and support is required to sustain food fortification in India. The current review focuses on strategies to prevent and control the epidemic of VDD in children.
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Affiliation(s)
- Raman Kumar Marwaha
- International Life Sciences Institute, New Delhi, India. .,Society for Endocrine Health Care of Elderly, Adolescents and Children (SEHEAC), New Delhi, India. .,, Flat no. 17, Gautam Apartments, Gautam Nagar, New Delhi, 110049, India.
| | - Aashima Dabas
- Department of Pediatrics, Maulana Azad Medical College and Associated Lok Nayak Hospitals, New Delhi, India
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Fedakâr A. Vitamin D Deficiency, Prevalence and Treatment in Neonatal Period. Endocr Metab Immune Disord Drug Targets 2019; 19:866-873. [PMID: 30857517 DOI: 10.2174/1871530319666190215152045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 01/26/2019] [Accepted: 01/29/2019] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Maternal vitamin D deficiency is an important risk factor that causes infantile rickets in the neonatal and infantile period. The aim of this study was to review the prevalence, clinical characteristics, and treatment of vitamin D deficiency and the follow-ups with infants and their mothers by the neonatal intensive care unit of Afiyet Hospital in Turkey. METHODS Calcium (Ca), phosphorus (P) and 25 (OH) vitamin D were studied and prospectively recorded in infants and their mothers detected to have hypocalcemia during routine biochemistry tests performed on the third postnatal day of the patients follow up and treated with different diagnoses. RESULTS A total of 2,460 infants were admitted into the neonatal intensive care unit between August 2014 and January 2018. Of the infants included in the study, 324 (66.1%) were male and 166 (33.8%) were female, and 366 (74.6%) of them had been delivered by cesarean section (C/S), 124 (25.3%) of them had been delivered by Normal Spontaneous Delivery (NSD). Hypocalcemia was detected in 490 (19.9%) of the infants. In a total of 190 (38.7%) infants and 86 mothers (17.5%), the levels of 25 (OH) vitamin D were found to be below the laboratory detection limit of <3 ng/ml. When vitamin D deficiency + insufficiency is assessed by season, 151 of them were found to be in summer (30.99%), 118 in spring (24.18%), 117 in the winter season(23.87%), and 93 in autumn(18.97%), respectively. There was a statistically significant positive correlation of 78.7% between the vitamins D values of the mothers and the infants (p: 0.000, p<0.05). CONCLUSION This study conducted that a positive correlation of between the vitamin D values of the mothers and the infants. In order to prevent maternal vitamin D deficiency, the appropriate dose of prophylaxis providing optimal levels of vitamin D and should be given by according to the levels of 25 (OH) D vitamin during pregnancy.
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Affiliation(s)
- Atiye Fedakâr
- Department of Pediatrics, Afiyet Hospital. Umraniye, Istanbul, Turkey
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11
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Do Healthy Pre-pubertal Girls Need Supplementation with Vitamin D? Indian Pediatr 2018. [DOI: 10.1007/s13312-018-1415-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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12
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STUDY OF INCIDENCE OF HYPOCALCEMIA IN INFANTS ADMITTED WITH SEIZURES IN A TERTIARY CARE HOSPITAL. INDIAN JOURNAL OF CHILD HEALTH 2018. [DOI: 10.32677/ijch.2018.v05.i11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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13
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Elsary AY, Elgameel AA, Mohammed WS, Zaki OM, Taha SA. Neonatal hypocalcemia and its relation to vitamin D and calcium supplementation. Saudi Med J 2018. [PMID: 29543302 PMCID: PMC5893913 DOI: 10.15537/smj.2018.3.21679] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVES To assess the prevalence of hypocalcemia in outpatient clinic neonates and its relation to vitamin D and calcium supplementation. Methods: This cross-sectional analytical study was conducted at the University Teaching Hospital from May to October 2016. Data were collected from 100 neonates by interviewing mothers using a structured questionnaire; which included socio-demographic information, maternal and neonatal history; in addition to investigations of serum calcium total and ionized and serum vitamin D level. Results: The prevalence of hypocalcemia was 76%, late hypocalcemia represent 52% of hypocalcemic neonates. The prevalence of hypovitaminosis D was 38%. Hypocalcemia was found more prevalent among neonates with no history of vitamin D supplementation (98.7%), no history of maternal calcium supplementation (57.9%), while they had a history of neonatal jaundice on phototherapy (46.1%) which increased to 53.8% with late hypocalcemia. Conclusion: Neonatal hypocalcemia is widely prevalent in Fayoum governorate with significant association with a history of neonatal jaundice on phototherapy, not receiving maternal calcium or neonatal vitamin D supplementation.
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Affiliation(s)
- Asmaa Y Elsary
- Department of Public Health, Faculty of Medicine, Fayoum University, Fayoum, Egypt. E-mail.
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14
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Kamate M, Sharma K, Patil V. Prevalence of Hypocalcemia in Seizures in Infancy. Indian J Pediatr 2018; 85:307-308. [PMID: 29247429 DOI: 10.1007/s12098-017-2546-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 11/17/2017] [Indexed: 10/18/2022]
Abstract
A one-year prospective study on developmentally normal children between 1-mo to 2-y with seizures was done to study the prevalence of hypocalcemia. The contribution of hypovitaminosis-D to hypocalcemia was also studied. Of 78 infants (51 boys) enrolled, 18 (23.1%) had hypocalcemia. Fifteen (19.2%) had hypocalcemia secondary to hypovitaminosis-D and 3 (3.8%) had hypomagnesemia. In infants aged less than 6 mo who were exclusively breastfed, 15 (41.67%) had hypocalcemia in comparison to other two age groups [2 (10.53%) in 6-12 mo age-group and 1 (4.35%) in 1-2 y age-group]. This association was statistically significant (p = 0.001).
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Affiliation(s)
- Mahesh Kamate
- Department of Pediatrics, KLE University's J N Medical College, Belgaum, Karnataka, 590010, India.
| | - Kanika Sharma
- Department of Pediatrics, KLE University's J N Medical College, Belgaum, Karnataka, 590010, India
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Vitamin D Supplementation in Childhood - A Review of Guidelines. Indian J Pediatr 2018; 85:194-201. [PMID: 28963648 DOI: 10.1007/s12098-017-2476-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 09/05/2017] [Indexed: 02/07/2023]
Abstract
Vitamin D, a unique vitamin with endocrine function is required in the human body primarily for calcium homeostasis and possibly several other functions. Deficiency of the vitamin is extremely frequent world-wide. Studies on Indian population place the prevalence of deficiency at 70 to 100% in healthy individuals. There are several guidelines available on definition of vitamin D deficiency and supplementation in healthy children and adults. Sufficiency or deficiency of the vitamin depend upon the levels of 25OHD and various cut-offs are suggested by different groups formulating the guidelines. Although the vitamin is synthesized in the skin with the help of sunlight, it is mostly agreed by various groups that oral supplementation must be done in infants and in certain high risk groups. No such formal guidelines currently exist for Indian children though there is a need to develop one.
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McNally JD, Nama N, O’Hearn K, Sampson M, Amrein K, Iliriani K, McIntyre L, Fergusson D, Menon K. Vitamin D deficiency in critically ill children: a systematic review and meta-analysis. Crit Care 2017; 21:287. [PMID: 29169388 PMCID: PMC5701429 DOI: 10.1186/s13054-017-1875-y] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 10/26/2017] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Vitamin D deficiency (VDD) has been hypothesized not only to be common but also to represent a potentially modifiable risk factor for greater illness severity and clinical outcome during critical illness. The objective of this systematic review was to determine the frequency of VDD in pediatric critical illness and its association with clinical outcomes. METHODS MEDLINE, Embase, and CENTRAL were searched through December 12, 2016, with no date or language restrictions. The primary objective was to estimate the prevalence of VDD in the pediatric intensive care unit (PICU) and compare vitamin D status with healthy control populations. Secondary objectives were to evaluate whether VDD is associated with mortality, increased illness severity, PICU interventions, and patient clinical course. Random effects meta-analysis was used to calculate pooled VDD event rate, compare levels with those of control subjects, and evaluate for associations between VDD and clinical outcome. RESULTS Among 2700 citations, 17 studies meeting study eligibility were identified. The studies reported a total of 2783 critically ill children and had a median sample size of 120 (range 12-511). The majority of studies used a 25-hydroxyvitamin D [25(OH)D] level less than 50 nmol/L to define VDD, and the pooled VDD prevalence was 54.8 (95% CI 45.4-63.9). Average 25(OH)D levels were significantly lower in PICU patients than in healthy control subjects (pooled difference -17.3 nmol/L, 95% CI -14.0 to -20.6). In a meta-analysis calculation, we found that VDD was associated with increased mortality (OR 1.62, 95% CI 1.11-2.36), illness severity, and need for PICU interventions. CONCLUSIONS Approximately 50% of critically ill children have VDD at the time of PICU admission, defined as a blood total 25(OH)D concentration under 50 nmol/L. VDD was further determined to be associated with greater illness severity, multiple organ dysfunction, and mortality in the PICU setting. Clinical trials are required to determine if optimization of vitamin D status improves patient outcome. TRIAL REGISTRATION PROSPERO, CRD42016026617 . Registered on 11 January 2016.
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Affiliation(s)
- James Dayre McNally
- Children’s Hospital of Eastern Ontario, 401 Smyth Road, Ottawa, ON K1H 8L1 Canada
- Division of Critical Care, Department of Pediatrics, Faculty of Medicine, University of Ottawa, Children’s Hospital of Eastern Ontario, 401 Smyth Road, Ottawa, ON K1H 8L1 Canada
| | - Nassr Nama
- Faculty of Medicine, University of Ottawa, Ottawa, ON Canada
| | - Katie O’Hearn
- Children’s Hospital of Eastern Ontario Research Institute, 501 Smyth Road, Ottawa, ON K1H 8L6 Canada
| | - Margaret Sampson
- Children’s Hospital of Eastern Ontario, 401 Smyth Road, Ottawa, ON K1H 8L1 Canada
| | - Karin Amrein
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | | | - Lauralyn McIntyre
- Division of Critical Care, Department of Medicine, Ottawa Hospital Research Institute (OHRI), University of Ottawa, Ottawa, ON Canada
| | - Dean Fergusson
- Department of Epidemiology and Community Medicine, Ottawa Hospital Research Institute (OHRI), University of Ottawa, Ottawa, Ontario Canada
| | - Kusum Menon
- Children’s Hospital of Eastern Ontario, 401 Smyth Road, Ottawa, ON K1H 8L1 Canada
- Division of Critical Care, Department of Pediatrics, Faculty of Medicine, University of Ottawa, Children’s Hospital of Eastern Ontario, 401 Smyth Road, Ottawa, ON K1H 8L1 Canada
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Spiral Fracture in Young Infant Causing a Diagnostic Dilemma: Nutritional Rickets versus Child Abuse. Case Rep Pediatr 2017; 2017:7213629. [PMID: 29057134 PMCID: PMC5625808 DOI: 10.1155/2017/7213629] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 08/07/2017] [Indexed: 01/27/2023] Open
Abstract
Fractures are uncommon in young, nonambulatory infants. The differential diagnosis includes nonaccidental injury (NAI) and metabolic bone disease, including rickets. While rickets typically present after six months of age, multiple cases have been reported in younger infants. We report a case of an 11-week-old male infant who presented with a spiral fracture of the humerus and no radiologic evidence of rickets. A detailed psychosocial assessment failed to reveal any risk factors for NAI. The patient had elevated alkaline phosphatase and PTH with low 25 hydroxyvitamin D and 1,25 dihydroxyvitamin D levels. Additionally, the mother was noncompliant with prenatal vitamins, exclusively breastfeeding without vitamin D supplementation, and had markedly low vitamin D levels 15 weeks postpartum. The biochemical data and history were consistent with rickets. Given the diagnostic dilemma, the working diagnosis was rickets and the patient was started on ergocalciferol with subsequent normalization of his laboratory values and healing of the fracture. These findings are consistent with nutritional rickets largely due to maternal-fetal hypovitaminosis D. This case highlights that in young infants rickets should be considered even in the absence of positive radiologic findings. Additionally, it illustrates the importance of maintaining adequate vitamin D supplementation during pregnancy and early infancy.
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Effect of vitamin D supplementation, directly or via breast milk for term infants, on serum 25 hydroxyvitamin D and related biochemistry, and propensity to infection: a randomised placebo-controlled trial. Br J Nutr 2016; 116:52-8. [DOI: 10.1017/s0007114516001756] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
AbstractWe assessed the effect of vitamin D supplementation on related biochemistry, infection and dentition of the infant. In a double-blind, placebo-controlled trial conducted in Lucknow, India (latitude 26°N), 230 mother –newborn pairs were randomised to receive, for 9 months, 3000µg/month oral vitamin D3 by the mother (group A) or 10µg/d by the infant (group B) or double placebo (group C). All babies received 15 min of sun exposure (unclothed) during massage. Infants’ median 25-hydroxyvitamin D (25(OH)D) was lower in group C (median 45·3; interquartile range (IQR) 22–59·5 nmol/l) than in groups A (median 60·8; IQR 41·3–80·5 nmol/l (P<0·01)) and B (median 61·3; IQR 41·3–75·3 nmol/l (P<0·05)) at 3·5 months. Infant 25(OH)D correlated negatively with infant parathyroid hormone (r −0·46, P<0·01). Elevated alkaline phosphatase (>7.5µkat/l) was significantly more frequent in group C babies (16 %) than in group A (4 %) or group B (0 %) babies. The number of days with respiratory or diarrhoeal infection by 9 months of age was higher in group C (median 46·5; IQR 14·8–73·3 d) than in group A (median 18·5; IQR 8·8–31·0 d (P<0·01)) or group B (median 13·0; IQR 7·0–28·5 (P<0·05)). We conclude that monthly maternal or daily infant supplementation with vitamin D along with sun exposure is superior to sun exposure alone in maintaining normal infant 25(OH)D at 3·5 months, and provide protection from elevated alkaline phosphatase and infectious morbidity.
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McNally JD, Amrein K. Vitamin D Deficiency in Pediatric Critical Care. J Pediatr Intensive Care 2016; 5:142-153. [PMID: 31110899 DOI: 10.1055/s-0036-1583285] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 10/22/2015] [Indexed: 01/08/2023] Open
Abstract
Vitamin D deficiency (VDD) is a well-established cause of pediatric bone and muscle disease. In addition, a role has been recognized for vitamin D in the health and stress response of other organs, including the cardiovascular, immune, and respiratory systems. As these organs are central to the development of and recovery from critical illness, VDD has been hypothesized to be a modifiable risk factor for ICU outcome. Over the past 5 years, a growing number of adult and pediatric critical care studies have investigated the prevalence of VDD and its association with illness severity and outcome. The adult studies have recently been synthesized in systematic reviews, with results that convincingly suggest the need for trials to determine whether optimization of vitamin D status improves outcome. In contrast, the pediatric ICU and related literature has not been similarly synthesized. The goal of this review is to describe vitamin D metabolism, known biological mechanisms, potential role in pathophysiology, and summarize the available pediatric intensive care unit (PICU) studies reporting on prevalence of VDD deficiency and its association with outcome. The problems with currently approved supplementation approaches and alternative strategies are discussed, including evidence from available RCTs in adult ICU. Altogether the results suggest that critically ill children are at risk for VDD, and that VDD appears to be associated with a worse clinical course. Clinical trials evaluating novel approaches to testing for and supplementing vitamin D require exploration.
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Affiliation(s)
- J Dayre McNally
- Division of Critical Care, Department of Pediatrics, Faculty of Medicine, University of Ottawa, Children's Hospital of Eastern Ontario, Ottawa, Canada.,Research Institute, Children's Hospital of Eastern Ontario, Ottawa, Canada
| | - Karin Amrein
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Medical University of Graz, Austria
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Nardone R, Brigo F, Trinka E. Acute Symptomatic Seizures Caused by Electrolyte Disturbances. J Clin Neurol 2016; 12:21-33. [PMID: 26754778 PMCID: PMC4712283 DOI: 10.3988/jcn.2016.12.1.21] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 09/01/2015] [Accepted: 09/03/2015] [Indexed: 01/10/2023] Open
Abstract
In this narrative review we focus on acute symptomatic seizures occurring in subjects with electrolyte disturbances. Quite surprisingly, despite its clinical relevance, this issue has received very little attention in the scientific literature. Electrolyte abnormalities are commonly encountered in clinical daily practice, and their diagnosis relies on routine laboratory findings. Acute and severe electrolyte imbalances can manifest with seizures, which may be the sole presenting symptom. Seizures are more frequently observed in patients with sodium disorders (especially hyponatremia), hypocalcemia, and hypomagnesemia. They do not entail a diagnosis of epilepsy, but are classified as acute symptomatic seizures. EEG has little specificity in differentiating between various electrolyte disturbances. The prominent EEG feature is slowing of the normal background activity, although other EEG findings, including various epileptiform abnormalities may occur. An accurate and prompt diagnosis should be established for a successful management of seizures, as rapid identification and correction of the underlying electrolyte disturbance (rather than an antiepileptic treatment) are of crucial importance in the control of seizures and prevention of permanent brain damage.
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Affiliation(s)
- Raffaele Nardone
- Department of Neurology, Paracelsus Medical University Salzburg, and Christian Doppler Medical Centre, Salzburg, Austria.,Department of Neurology, Franz Tappeiner Hospital, Merano, Italy
| | - Francesco Brigo
- Department of Neurological and Movement Sciences, University of Verona, Verona, Italy
| | - Eugen Trinka
- Department of Neurology, Paracelsus Medical University Salzburg, and Christian Doppler Medical Centre, Salzburg, Austria.,Centre for Cognitive Neurosciences Salzburg, Salzburg, Austria.,University for Medical Informatics and Health Technology, UMIT, Hall in Tirol, Austria.
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McNally JD, O'Hearn K, Lawson ML, Maharajh G, Geier P, Weiler H, Redpath S, McIntyre L, Fergusson D, Menon K. Prevention of vitamin D deficiency in children following cardiac surgery: study protocol for a randomized controlled trial. Trials 2015; 16:402. [PMID: 26353829 PMCID: PMC4564959 DOI: 10.1186/s13063-015-0922-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 08/21/2015] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Vitamin D is a pleiotropic hormone important for the recovery of organ systems after critical illness. Recent observational studies have suggested that three out of every four children are vitamin D deficient following cardiac surgery, with inadequate preoperative intake and surgical losses playing important contributory roles. Observed associations between postoperative levels, cardiovascular dysfunction and clinical course suggest that perioperative optimization of vitamin D status could improve outcome. With this two-arm, parallel, double blind, randomized controlled trial (RCT), we aim to compare immediate postoperative vitamin D status in children requiring cardiopulmonary bypass for congenital heart disease who receive preoperative daily high dose vitamin D supplementation (high-dose arm) with those who receive usual intake (low-dose arm). METHODS/DESIGN Eligibility requirements include age (>36 weeks, <18 years) and a congenital heart defect requiring cardiopulmonary bypass surgical correction. Enrollment of 62 participants will take place at a single Canadian tertiary care center over a period of 2 years. Children randomized to the high-dose group will receive age-based dosing that was informed by the Institute of Medicine (IOM) daily tolerable upper intake level (<1 year old = 1,600 IU/day, >1 year old = 2,400 IU/day). Children in the low-dose arm will receive usual care based on IOM recommendations (<1 year old = 400 IU, >1 year old = 600 IU). The primary outcome measure is immediate postoperative vitamin D status, using blood 25(OH)D. DISCUSSION Maintaining adequate postoperative vitamin D levels following surgery could represent an effective therapy to speed recovery following CHD surgery. The proposed research project will determine whether preoperative supplementation with a dosing regimen based on the IOM recommended daily upper tolerable intake will prevent postoperative vitamin-D deficiency in the majority of children. The results will then be used to inform the design of a large international RCT exploring whether preoperative optimization of vitamin D status might improve short and long-term outcomes in this vulnerable population. TRIAL REGISTRATION Clinicaltrials.gov Identifier--NCT01838447 Date of registration: 11 April 2013.
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Affiliation(s)
- J Dayre McNally
- Department of Pediatrics, Faculty of Medicine, University of Ottawa, Children's Hospital of Eastern Ontario, Ottawa, Canada.
- Research Institute, Children's Hospital of Eastern Ontario, 401 Smyth Road, Ottawa, ON, K1H 8L1, Canada.
| | - Katie O'Hearn
- Research Institute, Children's Hospital of Eastern Ontario, 401 Smyth Road, Ottawa, ON, K1H 8L1, Canada.
| | - Margaret L Lawson
- Department of Pediatrics, Faculty of Medicine, University of Ottawa, Children's Hospital of Eastern Ontario, Ottawa, Canada.
- Research Institute, Children's Hospital of Eastern Ontario, 401 Smyth Road, Ottawa, ON, K1H 8L1, Canada.
| | - Gyaandeo Maharajh
- Division of Cardiovascular Surgery, University of Ottawa, Ottawa, Canada.
| | - Pavel Geier
- Department of Pediatrics, Faculty of Medicine, University of Ottawa, Children's Hospital of Eastern Ontario, Ottawa, Canada.
- Research Institute, Children's Hospital of Eastern Ontario, 401 Smyth Road, Ottawa, ON, K1H 8L1, Canada.
| | - Hope Weiler
- School of Dietetics and Human Nutrition, McGill University, Montreal, QC, Canada.
| | - Stephanie Redpath
- Department of Pediatrics, Faculty of Medicine, University of Ottawa, Children's Hospital of Eastern Ontario, Ottawa, Canada.
| | - Lauralyn McIntyre
- Department of Medicine (Division of Critical Care), Ottawa Hospital Research Institute (OHRI), University of Ottawa, Ottawa, ON, Canada.
| | - Dean Fergusson
- Department of Epidemiology and Community Medicine, Ottawa Hospital Research Institute (OHRI), University of Ottawa, Ottawa, ON, Canada.
| | - Kusum Menon
- Department of Pediatrics, Faculty of Medicine, University of Ottawa, Children's Hospital of Eastern Ontario, Ottawa, Canada.
- Research Institute, Children's Hospital of Eastern Ontario, 401 Smyth Road, Ottawa, ON, K1H 8L1, Canada.
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Abstract
Seizures during the neonatal period have a broad differential diagnosis. Unlike in developing countries where hypovitaminosis D and hypocalcemia constitutes a major cause of infantile seizures, the number of neonatal seizures attributed to hypocalcemia in developed countries has decreased dramatically due to the improvement of infant formulas and vitamin D supplementation. In these countries, most infants that present with hypocalcemic seizures have underlying endocrinological etiologies rather than dietary insufficiencies. Here, we describe 3 cases of neonatal seizures due to hypocalcemia. Although the symptoms and calcium concentrations at presentation were similar in all 3 cases, the course of the disease and the final diagnosis for each were distinct. The cases are presented along with a brief review of the pathophysiology, differential diagnosis, and treatment of neonatal hypocalcemia.
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24
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Maladkar M, Sankar S, Kamat K. Vitamin D Efficiency in Pregnancy: An Updated Viewpoint in Indian Scenario. ACTA ACUST UNITED AC 2015. [DOI: 10.4236/ijcm.2015.63026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Vitamin D and fetal-neonatal calcium homeostasis: findings from a randomized controlled trial of high-dose antenatal vitamin D supplementation. Pediatr Res 2014; 76:302-9. [PMID: 24937546 DOI: 10.1038/pr.2014.83] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Accepted: 03/04/2014] [Indexed: 11/09/2022]
Abstract
BACKGROUND There is current interest in the maternal-fetal effects of antenatal vitamin D supplementation, yet little data regarding vitamin D's role in neonatal calcium homeostasis. We determined to assess the effect of high-dose antenatal vitamin D supplementation on fetal and neonatal calcium concentrations. METHODS In a double-blinded, placebo-controlled trial in Bangladesh, 160 pregnant women were randomized to oral vitamin D3 (35,000 IU/wk) or placebo from 26 to 29 wk of gestation. RESULTS Total serum calcium (Ca) was higher in cord blood of those supplemented vs. placebo (2.66 ± 0.1 vs. 2.61 ± 0.2 mmol/l; P = 0.04), but the difference in albumin-adjusted calcium was not statistically significant. Change in Ca concentration from birth to day 3 of life was attenuated by vitamin D (-0.10 ± 0.17) compared with placebo (-0.22 ± 0.18 mmol/l; P = 0.02). Maternal 25-hydroxyvitamin D (25(OH)D) (P = 0.04) and cord 25(OH)D (P < 0.01) were associated with day 3 infant Ca, suggesting that the effect of supplementation was mediated by change in maternal-infant vitamin D status. Six infants in each of the supplemented and placebo groups had transient hypercalcemia/hypercalcuria; in all the hypercalcemia/hypercalcuria was asymptomatic, spontaneously resolved, and unassociated with nephrocalcinosis at 1 mo of life. CONCLUSION High-dose antenatal third-trimester vitamin D supplementation attenuated the early postnatal calcium nadir, without increasing the risk of postnatal hypercalcemia.
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G R, Gupta A. Vitamin D deficiency in India: prevalence, causalities and interventions. Nutrients 2014; 6:729-75. [PMID: 24566435 PMCID: PMC3942730 DOI: 10.3390/nu6020729] [Citation(s) in RCA: 233] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2013] [Revised: 01/28/2014] [Accepted: 01/28/2014] [Indexed: 02/07/2023] Open
Abstract
Vitamin D deficiency prevails in epidemic proportions all over the Indian subcontinent, with a prevalence of 70%-100% in the general population. In India, widely consumed food items such as dairy products are rarely fortified with vitamin D. Indian socioreligious and cultural practices do not facilitate adequate sun exposure, thereby negating potential benefits of plentiful sunshine. Consequently, subclinical vitamin D deficiency is highly prevalent in both urban and rural settings, and across all socioeconomic and geographic strata. Vitamin D deficiency is likely to play an important role in the very high prevalence of rickets, osteoporosis, cardiovascular diseases, diabetes, cancer and infections such as tuberculosis in India. Fortification of staple foods with vitamin D is the most viable population based strategy to achieve vitamin D sufficiency. Unfortunately, even in advanced countries like USA and Canada, food fortification strategies with vitamin D have been only partially effective and have largely failed to attain vitamin D sufficiency. This article reviews the status of vitamin D nutrition in the Indian subcontinent and also the underlying causes for this epidemic. Implementation of population based educational and interventional strategies to combat this scourge require recognition of vitamin D deficiency as a public health problem by the governing bodies so that healthcare funds can be allocated appropriately.
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Affiliation(s)
- Ritu G
- Charak Foundation, P.O. Box 3547, Cerritos, CA 90703, USA
| | - Ajay Gupta
- Charak Foundation, P.O. Box 3547, Cerritos, CA 90703, USA.
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Joshi K, Bhatia V. Vitamin D deficiency in a tropical country--treatment and prevention in children. Indian J Pediatr 2014; 81:84-9. [PMID: 24190401 DOI: 10.1007/s12098-013-1241-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Accepted: 08/29/2013] [Indexed: 02/07/2023]
Abstract
Vitamin D has an important role to play in skeletal and extraskeletal health. Inspite of being a sun rich country, India has widespread vitamin D deficiency. Vitamin D deficiency can lead to serious consequences like hypocalcemic seizures and increased risk of respiratory tract infections in neonates and infants. International expert groups advocate universal supplementation for non-formula fed infants, pregnant and lactating women and those at risk of deficiency. A body of literature on vitamin D status in India is being generated, which may guide clinical practice in our country. Treatment of deficiency must be undertaken with minimally effective doses to avoid the risk of toxicity. Sensible sunshine exposure should be encouraged to facilitate vitamin D production from natural sources.
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Affiliation(s)
- Kriti Joshi
- Department of Endocrinology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, 226014, Uttar Pradesh, India
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Kočovská E, Fernell E, Billstedt E, Minnis H, Gillberg C. Vitamin D and autism: clinical review. RESEARCH IN DEVELOPMENTAL DISABILITIES 2012; 33:1541-1550. [PMID: 22522213 DOI: 10.1016/j.ridd.2012.02.015] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2012] [Accepted: 02/13/2012] [Indexed: 05/31/2023]
Abstract
BACKGROUND Autism spectrum disorder (ASD) is a complex neurodevelopmental disorder with multiple genetic and environmental risk factors. The interplay between genetic and environmental factors has become the subject of intensified research in the last several years. Vitamin D deficiency has recently been proposed as a possible environmental risk factor for ASD. OBJECTIVE The aim of the current paper is to systematically review the research regarding the possible connection between ASD and vitamin D, and to provide a narrative review of the literature regarding the role of vitamin D in various biological processes in order to generate hypotheses for future research. RESULTS Systematic data obtained by different research groups provide some, albeit very limited, support for the possible role of vitamin D deficiency in the pathogenesis of ASD. There are two main areas of involvement of vitamin D in the human body that could potentially have direct impact on the development of ASD: (1) the brain (its homeostasis, immune system and neurodevelopment) and (2) gene regulation. CONCLUSION Vitamin D deficiency--either during pregnancy or early childhood--may be an environmental trigger for ASD in individuals genetically predisposed for the broad phenotype of autism. On the basis of the results of the present review, we argue for the recognition of this possibly important role of vitamin D in ASD, and for urgent research in the field.
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Affiliation(s)
- Eva Kočovská
- Institute of Health and Wellbeing, University of Glasgow, Caledonia House, Dalnair Street, RHSC, Yorkhill, Glasgow G3 8SJ, UK.
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Abstract
Vitamin D is a member of the superfamily of nuclear steroid transcription regulators and as such, exerts transcriptional control over a large number of genes. Several other steroids, such as thyroid hormones, vitamin A, androgens and the glucocorticoids, are known as 'neurosteroids' and their role in brain development and function is well defined. It has only been in the last decade or so that vitamin D has been thought to function as a neurosteroid. In this review we have collated a diverse array of data describing the presence of vitamin D metabolites and the receptor in the brain, the evidence that vitamin D may be an important modulator of brain development, and the potential role of vitamin D in neurological and neuropsychiatric disorders.
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Affiliation(s)
- Lauren R Harms
- Queensland Brain Institute, University of Queensland, St. Lucia, QLD 4072, Australia.
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