1
|
Jeppegaard M, Rasmussen SC, Anhøj J, Krebs L. Winter, spring, summer or fall: temporal patterns in placenta-mediated pregnancy complications-an exploratory analysis. Arch Gynecol Obstet 2024; 309:1991-1998. [PMID: 37353564 PMCID: PMC11018682 DOI: 10.1007/s00404-023-07094-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 06/01/2023] [Indexed: 06/25/2023]
Abstract
PURPOSE Placenta-mediated pregnancy complications, like growth restriction and hypertensive disorders, are leading causes of maternal, fetal and neonatal morbidity and mortality in high-income countries. The purpose was to investigate if there is a seasonal variation in placenta-mediated pregnancy complications (small for gestational age, intrauterine growth restriction, preeclampsia, preterm birth and intrauterine fetal death). METHODS This is a Danish cohort study including all singleton deliveries at gestational week 22 up to and including week 41 conceived from December 2006 to November 2016 (N = 555,459). We used statistical process control charts to visualize data and to test for patterns of non-random variation in data over time for pregnancies with risk factors (BMI, diabetes, in vitro fertilization, maternal age > 40 years, primipara, previous caesarean and smoking) and each of the following outcome: fetal growth restriction, hypertensive disorders, preterm birth and intrauterine fetal death. The study was approved by the Danish Data Protection agency; REG-039-2019. RESULTS We found a seasonal pattern in hypertensive disorders during pregnancy with dips in pregnancies conceived in the fall season and highest risk by conception in the spring and summer season. We found no apparent seasonality in cases of preterm delivery, small for gestational age and intrauterine mortality. Individual risk factors (e.g. smoking and obesity) for placenta-mediated complicated over time were in consistency with the general trends. CONCLUSIONS We found a significant seasonal variation in the risk of hypertensive disorders of pregnancy with highest risk by conception in the spring and summer season. This study found no seasonal variation in other placenta-mediated complications.
Collapse
Affiliation(s)
- Maria Jeppegaard
- Department of Gynecology and Obstetrics, Copenhagen University Hospital - Holbæk, Smedelundsgade 60, 4300, Holbaek, Denmark.
- Department of Gynecology and Obstetrics, Copenhagen University Hospital - Hvidovre, Amager Hvidovre Hospital, Kettegård Allé 30, 2650, Hvidovre, Denmark.
- Department of Clinical Medicine, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen N, Denmark.
| | - Steen C Rasmussen
- Department of Gynecology and Obstetrics, Copenhagen University Hospital - Holbæk, Smedelundsgade 60, 4300, Holbaek, Denmark
- Department of Gynecology and Obstetrics, Copenhagen University Hospital - Hvidovre, Amager Hvidovre Hospital, Kettegård Allé 30, 2650, Hvidovre, Denmark
- Centre of Diagnostic Investigation, Copenhagen University Hospital-Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark
| | - Jacob Anhøj
- Centre of Diagnostic Investigation, Copenhagen University Hospital-Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark
| | - Lone Krebs
- Department of Gynecology and Obstetrics, Copenhagen University Hospital - Hvidovre, Amager Hvidovre Hospital, Kettegård Allé 30, 2650, Hvidovre, Denmark
- Department of Clinical Medicine, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen N, Denmark
| |
Collapse
|
2
|
Mao Y, Gao Q, Zhang Y, Yue Y, Ruan T, Yang Y, Xiong T. Associations between extreme temperature exposure and hypertensive disorders in pregnancy: a systematic review and meta-analysis. Hypertens Pregnancy 2023; 42:2288586. [PMID: 38053322 DOI: 10.1080/10641955.2023.2288586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 11/20/2023] [Indexed: 12/07/2023]
Abstract
BACKGROUND Hypertensive disorders in pregnancy (HDP) are a major cause of maternal mortality and morbidity. Recent studies indicated that pregnant women are the most vulnerable populations to ambient temperature influences, but it affected HDP with inconsistent conclusions. Our objective is to systematically review whether extreme temperature exposure is associated with a changed risk for HDP. METHOD We searched PubMed, EMBASE, Web of Science and Cochrane Library databases. We included cohort or case control studies examining the association between extreme temperature exposure before or during pregnancy and HDP. Heat sources such as saunas and hot baths were excluded. We pooled the odds ratio (OR) to assess the association between extreme temperature exposure and preeclampsia or eclampsia. RESULTS Fifteen studies involving 4,481,888 patients were included. Five studies were included in the meta-analysis. The overall result demonstrated that in the first half of pregnancy, heat exposure increases the risk of developing preeclampsia or eclampsia and gestational hypertension, and cold exposure decreases the risk. The meta-analysis revealed that during the first half of pregnancy, heat exposure increased the risk of preeclampsia or eclampsia (OR 1.54, 95% confidence interval (CI): 1.10, 2.15), whereas cold exposure decreased the risk (OR 0.90, 95% CI: 0.84, 0.97). CONCLUSION The ambient temperature is an important determinant for the development of HDP, especially for preeclampsia or eclampsia. The effects of extreme temperatures may be bidirectional during the different trimesters of pregnancy, which should be evaluated by future studies. This review provided hints of temperature regulation in HDP administration.
Collapse
Affiliation(s)
- Yanxia Mao
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) Ministry of Education, Sichuan University, Chengdu, China
| | - Qian Gao
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) Ministry of Education, Sichuan University, Chengdu, China
| | - Ying Zhang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Yan Yue
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) Ministry of Education, Sichuan University, Chengdu, China
| | - Tiechao Ruan
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) Ministry of Education, Sichuan University, Chengdu, China
| | - Yi Yang
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) Ministry of Education, Sichuan University, Chengdu, China
- Department of Pediatric otolaryngology head and neck surgery, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Tao Xiong
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) Ministry of Education, Sichuan University, Chengdu, China
| |
Collapse
|
3
|
Sun N, Bursac Z, Dryden I, Lucchini R, Dabo-Niang S, Ibrahimou B. Bayesian spatiotemporal modelling for disease mapping: an application to preeclampsia and gestational diabetes in Florida, United States. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:109283-109298. [PMID: 37770738 PMCID: PMC10726673 DOI: 10.1007/s11356-023-29953-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 09/14/2023] [Indexed: 09/30/2023]
Abstract
Morbidities generally show patterns of concentration that vary by space and time. Disease mapping models are useful in estimating the spatiotemporal patterns of disease risks and are therefore pivotal for effective disease surveillance, resource allocation, and the development of prevention strategies. This study considers six spatiotemporal Bayesian hierarchical models based on two spatial conditional autoregressive priors. It could serve as a guideline on the development and application of Bayesian hierarchical models to assess the emerging risk trends, risk clustering, and spatial inequality trends, with estimation of covariables' effects on the interested disease risk. The method is applied to the Florida Birth Record data between 2006 and 2015 to study two cardiovascular risk factors: preeclampsia and gestational diabetes. High-risk clusters were detected in North Central Florida for preeclampsia and in Central Florida for gestational diabetes. While the adjusted disease trend was stable, spatial inequality peaked in 2011-2012 for both diseases. Exposure to PM2.5 at first or/and second trimester increased the risk of preeclampsia and gestational diabetes, but the magnitude is less severe compared to previous studies. In conclusion, this study underscores the significance of selecting appropriate disease mapping models in estimating the intricate spatiotemporal patterns of disease risk and suggests the importance of localized interventions to reduce health disparities. The result also identified an opportunity to study potential risk factors of preeclampsia, as the spike of risk in North Central Florida cannot be explained by current covariables.
Collapse
Affiliation(s)
- Ning Sun
- Department of Biostatistics, Robert Stempel College of Public Health and Social Work, Florida International University, Miami, FL, USA
| | - Zoran Bursac
- Department of Biostatistics, Robert Stempel College of Public Health and Social Work, Florida International University, Miami, FL, USA
| | - Ian Dryden
- Department of Mathematics and Statistics, College of Arts, Science and Education, Florida International University, Miami, FL, USA
| | - Roberto Lucchini
- Environmental Health Science Department, Robert Stempel College of Public Health and Social Work, Florida International University, Miami, FL, USA
| | - Sophie Dabo-Niang
- Laboratory PAINLEVE UMR 8524, Inria-MODAL, University of Lille, BP 60149, 59653, Villeneuve d'ascq cedex, France
| | - Boubakari Ibrahimou
- Department of Biostatistics, Robert Stempel College of Public Health and Social Work, Florida International University, Miami, FL, USA.
| |
Collapse
|
4
|
Nagraj S, Kennedy S, Jha V, Norton R, Hinton L, Billot L, Rajan E, Mohammed Abdul A, Phalswal A, Arora V, Praveen D, Hirst J. A Mobile Clinical Decision Support System for High-Risk Pregnant Women in Rural India (SMARThealth Pregnancy): Pilot Cluster Randomized Controlled Trial. JMIR Form Res 2023; 7:e44362. [PMID: 37471135 PMCID: PMC10401191 DOI: 10.2196/44362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 06/01/2023] [Accepted: 06/13/2023] [Indexed: 07/21/2023] Open
Abstract
BACKGROUND Cardiovascular disease (CVD) is the leading cause of death in women in India. Early identification is crucial to reducing deaths. Hypertensive disorders of pregnancy (HDP) and gestational diabetes mellitus (GDM) carry independent risks for future CVD, and antenatal care is a window to screen and counsel high-risk women. In rural India, community health workers (CHWs) deliver antenatal and postnatal care. We developed a complex intervention (SMARThealth Pregnancy) involving mobile clinical decision support for CHWs and evaluated it in a pilot cluster randomized controlled trial (cRCT). OBJECTIVE The aim of the study is to co-design a theory-informed intervention for CHWs to screen, refer, and counsel pregnant women at high risk of future CVD in rural India and evaluate its feasibility and acceptability. METHODS In phase 1, we used qualitative methods to explore community priorities for high-risk pregnant women in rural areas of 2 diverse states in India. In phase 2, informed by behavior change theory and human-centered design, we used these qualitative data to develop the intervention components and implementation strategies for SMARThealth Pregnancy in an iterative process with end users. In phase 3, using mixed methods, we evaluated the intervention in a cRCT with an embedded qualitative substudy across 4 primary health centres: 2 in Jhajjar district, Haryana, and 2 in Guntur district, Andhra Pradesh. RESULTS SMARThealth Pregnancy embedded a total of 15 behavior change techniques and included (1) community awareness programs; (2) targeted training, including point-of-care blood pressure and hemoglobin measurement; and (3) mobile clinical decision support for CHWs to screen women in their homes. The intervention focused on 3 priority conditions: anemia, HDP, and GDM. The evaluation involved a total of 200 pregnant women, equally randomized to intervention or enhanced standard care (control). Recruitment was completed within 5 months, with minimal loss to follow-up (4/200, 2%) at 6 weeks postpartum. A total of 4 primary care doctors and 54 CHWs in the intervention clusters took part in the study. Fidelity to intervention practices was 100% prepandemic. Over half the study population was affected by moderate to severe anemia at baseline. The prevalence of HDP (2.5%) and GDM (2%) was low in our study population. Results suggest a possible improvement in mean hemoglobin (anemia) in the intervention group, although an adequately powered trial is needed. The model of home-based care was feasible and acceptable for pregnant or postpartum women and CHWs, who perceived improvements in quality of care, self-efficacy, and professional recognition. CONCLUSIONS SMARThealth Pregnancy is an innovative model of home-based care for high-risk pregnant women during the transitions between antenatal and postnatal care and adult health services. The use of theory and co-design during intervention development facilitated acceptability of the intervention and implementation strategies. Our experience has informed the decision to initiate a larger-scale cRCT. TRIAL REGISTRATION ClinicalTrials.gov NCT03968952; https://clinicaltrials.gov/ct2/show/NCT03968952. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) RR2-10.3389/fgwh.2021.620759.
Collapse
Affiliation(s)
- Shobhana Nagraj
- Nuffield Department of Women's & Reproductive Health, University of Oxford, Oxford, United Kingdom
- The George Institute for Global Health, Imperial College London, London, United Kingdom
- Health Systems Collaborative, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
- Oxford University Global Surgery Group, University of Oxford, Oxford, United Kingdom
| | - Stephen Kennedy
- Nuffield Department of Women's & Reproductive Health, University of Oxford, Oxford, United Kingdom
| | - Vivekananda Jha
- The George Institute for Global Health, Imperial College London, London, United Kingdom
- The George Institute for Global Health, New Delhi, India
- University of New South Wales, Sydney, Australia
- Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal, India
| | - Robyn Norton
- The George Institute for Global Health, Imperial College London, London, United Kingdom
- The George Institute for Global Health, UNSW Sydney, Kensington, Australia
| | - Lisa Hinton
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
| | - Laurent Billot
- The George Institute for Global Health, UNSW Sydney, Kensington, Australia
| | - Eldho Rajan
- The George Institute for Global Health, New Delhi, India
| | | | - Anita Phalswal
- The George Institute for Global Health, New Delhi, India
| | - Varun Arora
- Post Graduate Institute of Medical Science, Rohtak, India
| | - Devarsetty Praveen
- The George Institute for Global Health, New Delhi, India
- University of New South Wales, Sydney, Australia
- Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal, India
| | - Jane Hirst
- Nuffield Department of Women's & Reproductive Health, University of Oxford, Oxford, United Kingdom
- The George Institute for Global Health, Imperial College London, London, United Kingdom
| |
Collapse
|
5
|
Liao L, Wei X, Liu M, Gao Y, Yin Y, Zhou R. The Association Between Season and Hypertensive Disorders in Pregnancy: a Systematic Review and Meta-analysis. Reprod Sci 2023; 30:787-801. [PMID: 35764856 DOI: 10.1007/s43032-022-01010-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 06/10/2022] [Indexed: 10/17/2022]
Abstract
There is increasing and inconsistent evidence of a relationship between hypertensive disorders in pregnancy (HDPs) and season of delivery or conception. In this systematic review and meta-analysis, we assessed the association between season and HDPs. The review protocol was registered in PROSPERO (CRD42021285539). Four databases, the Cochrane Library, PubMed, EMBASE, and Web of Science, were searched until September 29th, 2021. Two authors extracted data independently and used the Newcastle-Ottawa quality assessment scale (NOS) to evaluate study quality. A random effects model and the Mantel-Haenszel method were used to calculate pooled Odds ratios (ORs) and 95% confidence intervals (95% CIs). Subgroup analyses and sensitivity analyses were performed to find the source of heterogeneity and Begg's funnel plot and Egger's test were used to check for the risk of publication bias. Finally, twenty articles were included in the systematic review, and 11 articles were included in the meta-analysis. The quantitative analysis of the association between delivery season and HDPs showed that the odds of HDPs was higher in women who delivered in winter than in those who delivered in summer (OR = 1.18, 95% CI 1.02-1.38, P < 0.001) and all other seasons (OR = 1.17, 95% CI 1.03-1.34, P < 0.001). In the qualitative analysis of the association between conception season and HDPs, four of seven studies suggested that women who conceived in summer had a higher risk of HDPs than those who conceived in other seasons. Based on the evidence to date, we found weakly positive relationships between HDPs and summer conception and winter delivery.
Collapse
Affiliation(s)
- Lingyun Liao
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) of Ministry of Education, Chengdu, Sichuan, China
| | - Xiaohong Wei
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) of Ministry of Education, Chengdu, Sichuan, China
| | - Min Liu
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) of Ministry of Education, Chengdu, Sichuan, China
| | - Yijie Gao
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) of Ministry of Education, Chengdu, Sichuan, China
| | - Yangxue Yin
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) of Ministry of Education, Chengdu, Sichuan, China
| | - Rong Zhou
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) of Ministry of Education, Chengdu, Sichuan, China.
| |
Collapse
|
6
|
Meier K, Glavind J, Milidou I, Sørensen JCH, Sandager P. Burst Spinal Cord Stimulation in Pregnancy: First Clinical Experiences. Neuromodulation 2023; 26:224-232. [PMID: 35697598 DOI: 10.1016/j.neurom.2022.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 03/08/2022] [Accepted: 03/10/2022] [Indexed: 01/11/2023]
Abstract
OBJECTIVES Spinal cord stimulation (SCS) is a treatment for chronic neuropathic pain. It is based on the delivery of electric impulses to the spinal cord, traditionally in a regular square-wave pattern ("tonic" stimulation) and, more recently, in a rhythmic train-of-five "BurstDR" pattern. The safety of active SCS therapy in pregnancy is not established, and recommendations are based on limited casuistic evidence. We present in this study clinical data on a case series of six women treated with burst SCS during pregnancy. In addition, we present the ultrasonographic flow measurements of fetal and uteroplacental blood flow in a pregnant patient. MATERIALS AND METHODS Patients were included if they had been implanted with a full SCS system at Aarhus University Hospital, Denmark, between 2006 and 2020 and received active burst SCS stimulation during a pregnancy. Telephone interviews were conducted, including details on SCS therapy, medication, pregnancy course and outcome, and health status of the offspring. In one patient, the uteroplacental and fetal blood flow was assessed in gestational week 29 by Doppler flow measurements performed during both ON and OFF phases of the SCS system. RESULTS Six patients were included with a total of 11 pregnancies. Three pregnancies ended in miscarriages, all in the same patient who had preexisting significant risk factors for miscarriage. Eight resulted in a live-born child with normal birth weight for gestational age; seven were born at term, and one was born late preterm, in gestational week 36. Ultrasonographic Doppler flow, measured in one patient, was normal and did not reveal any immediate changes between burst SCS ON and OFF. Seven children were reported healthy with normal neurodevelopment and one physically healthy but with developmental delays. CONCLUSIONS The data presented in this study add to the accumulating evidence of the safety of SCS in pregnancy.
Collapse
Affiliation(s)
- Kaare Meier
- Department of Neurosurgery, Aarhus University Hospital, Aarhus, Denmark; Department of Anesthesiology, Aarhus University Hospital, Aarhus, Denmark; Center for Experimental Neuroscience, Institute of Clinical Medicine, Aarhus University, Aarhus, Denmark.
| | - Julie Glavind
- Department of Obstetrics and Gynecology, Aarhus University Hospital, Aarhus, Denmark
| | - Ioanna Milidou
- Department of Pediatrics and Adolescent Medicine, Regional Hospital West Jutland, Herning, Denmark; Department of Neurology, Aarhus University Hospital, Aarhus, Denmark
| | - Jens Christian Hedemann Sørensen
- Department of Neurosurgery, Aarhus University Hospital, Aarhus, Denmark; Center for Experimental Neuroscience, Institute of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Puk Sandager
- Department of Obstetrics and Gynecology, Aarhus University Hospital, Aarhus, Denmark; Center for Fetal Diagnostics, Aarhus University Hospital, Aarhus, Denmark
| |
Collapse
|
7
|
Suárez-Varela MM, Uçar N, Peraita-Costa I, Huertas MF, Soriano JM, Llopis-Morales A, Grant WB. Vitamin D-Related Risk Factors for Maternal Morbidity during Pregnancy: A Systematic Review. Nutrients 2022; 14:nu14153166. [PMID: 35956342 PMCID: PMC9370561 DOI: 10.3390/nu14153166] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/14/2022] [Accepted: 07/28/2022] [Indexed: 02/01/2023] Open
Abstract
Vitamin D has well-defined classical functions related to metabolism and bone health but also has non-classical effects that may influence pregnancy. Maternal morbidity remains a significant health care concern worldwide, despite efforts to improve maternal health. Nutritional deficiencies of vitamin D during pregnancy are related to adverse pregnancy outcomes, but the evidence base is difficult to navigate. The primary purpose of this review is to map the evidence on the effects of deficiencies of vitamin D on pregnancy outcome and the dosage used in such studies. A systematic search was performed for studies on vitamin D status during pregnancy and maternal outcomes. A total of 50 studies came from PubMed, 15 studies came from Cochrane, and 150 studies came from Embase, for a total of 215 articles. After screening, 34 were identified as candidate studies for inclusion. Finally, 28 articles met the inclusion criteria, which originated from 15 countries. The studies included 14 original research studies and 13 review studies conducted between 2012 and 2021. This review was finally limited to the 14 original studies. This systematic review was conducted according to the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) guidelines, and the quality and strength of the evidence was evaluated using the Navigation Guide Systematic Review Methodology (SING). We found evidence that supports the idea that supplementary vitamin D for pregnant women is important for reducing the risk of gestational diabetes, hypertension, preeclampsia, early labor, and other complications. The data retrieved from this review are consistent with the hypothesis that adequate vitamin D levels might contribute to a healthy pregnancy.
Collapse
Affiliation(s)
- Maria Morales Suárez-Varela
- Area of Preventive Medicine and Public Health, Department of Preventive Medicine and Public Health, Food Sciences, Toxicology and Legal Medicine, School of Pharmacy, University de Valencia, Avenida Vicent Andres Estelles s/n, 46100 Valencia, Spain; (M.M.S.-V.); (N.U.); (I.P.-C.); (M.F.H.); (A.L.-M.)
- Biomedical Research Center Network on Epidemiology and Public Health (CIBERESP), Institute of Health Carlos III, Avenida Monforte de Lemos, 3-5, Pabellón 11, Planta 0, 28029 Madrid, Spain
| | - Nazlı Uçar
- Area of Preventive Medicine and Public Health, Department of Preventive Medicine and Public Health, Food Sciences, Toxicology and Legal Medicine, School of Pharmacy, University de Valencia, Avenida Vicent Andres Estelles s/n, 46100 Valencia, Spain; (M.M.S.-V.); (N.U.); (I.P.-C.); (M.F.H.); (A.L.-M.)
| | - Isabel Peraita-Costa
- Area of Preventive Medicine and Public Health, Department of Preventive Medicine and Public Health, Food Sciences, Toxicology and Legal Medicine, School of Pharmacy, University de Valencia, Avenida Vicent Andres Estelles s/n, 46100 Valencia, Spain; (M.M.S.-V.); (N.U.); (I.P.-C.); (M.F.H.); (A.L.-M.)
- Biomedical Research Center Network on Epidemiology and Public Health (CIBERESP), Institute of Health Carlos III, Avenida Monforte de Lemos, 3-5, Pabellón 11, Planta 0, 28029 Madrid, Spain
| | - María Flores Huertas
- Area of Preventive Medicine and Public Health, Department of Preventive Medicine and Public Health, Food Sciences, Toxicology and Legal Medicine, School of Pharmacy, University de Valencia, Avenida Vicent Andres Estelles s/n, 46100 Valencia, Spain; (M.M.S.-V.); (N.U.); (I.P.-C.); (M.F.H.); (A.L.-M.)
| | - Jose Miguel Soriano
- Unit of Nutrition and Bromatology, Department of Preventive Medicine and Public Health, Food Sciences, Toxicology and Forensic Medicine, Universitat de València, Avda. Vicente Andrés Estellés s/n, Burjassot, 46100 Valencia, Spain;
| | - Agustin Llopis-Morales
- Area of Preventive Medicine and Public Health, Department of Preventive Medicine and Public Health, Food Sciences, Toxicology and Legal Medicine, School of Pharmacy, University de Valencia, Avenida Vicent Andres Estelles s/n, 46100 Valencia, Spain; (M.M.S.-V.); (N.U.); (I.P.-C.); (M.F.H.); (A.L.-M.)
| | - William B. Grant
- Sunlight, Nutrition, and Health Research Center, P.O. Box 641603, San Francisco, CA 94164-1603, USA
- Correspondence:
| |
Collapse
|
8
|
Martins TGDS, Schor P, Mendes LGA, Anschütz A, Silva R. Eye diseases during pregnancy: a study with the medical data warehouse in the eye clinic of the Ludwig-Maximilians-Universität München in Munich in Germany. EINSTEIN-SAO PAULO 2022; 20:eAO6613. [PMID: 35544891 PMCID: PMC9070990 DOI: 10.31744/einstein_journal/2022ao6613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 01/21/2022] [Indexed: 11/10/2022] Open
Abstract
Objective To analyze the most common ophthalmologic disorders in pregnant women seen in a hospital in Munich in Germany using a big data analysis system, as well as to compare the results obtained with those from other epidemiological studies that used different data acquisition methods. Methods We retrospectively analyzed electronic health records of pregnant women who were seen at the ophthalmology department from 2003 to 2019 at the Ludwig-Maximilians-Universität München hospital. The main complaints that led to ophthalmic consultations during this period were evaluated, and also the variation in intraocular pressure of patients throughout gestational trimesters by analyzing data from the data warehouse system. Results A total of 27,326 electronic health records were analyzed. Of participants, 149 (0.54%) required eye care during pregnancy. Their mean intraocular pressure was 17mmHg in the first trimester, 12mmHg in the second trimester, and 14mmHg in the third trimester. The most prevalent findings were dry eye (29.3%) and conjunctivitis (16%), and ametropia (16%). The most common posterior segment problem was diabetic retinopathy (4.6%). The lower mean intraocular pressure in the second and third trimester found in our study is in accordance with other studies that used other method for data acquisition. Conclusion The most common ophthalmic conditions found in this study population were dry eye, conjunctivitis, and ametropia. The use of data warehouse proved to be useful for acquiring and analyzing data from many patients. This study results are comparable with other studies in published literature that adopted different methodology.
Collapse
|
9
|
Dahl Ravn J, Julie Bendix E, Sperling L, Overgaard M. First trimester serum matrix metalloproteinase-7 is a poor predictor of late-onset preeclampsia. Pregnancy Hypertens 2022; 28:94-99. [DOI: 10.1016/j.preghy.2022.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 02/28/2022] [Accepted: 03/10/2022] [Indexed: 10/18/2022]
|
10
|
Hastie CE, Mackay DF, Clemens TL, Cherrie MPC, Megaw LJ, Smith GCS, Stock SJ, Dibben C, Pell JP. Antenatal Exposure to UV-B Radiation and Preeclampsia: A Retrospective Cohort Study. J Am Heart Assoc 2021; 10:e020246. [PMID: 34155917 PMCID: PMC8403301 DOI: 10.1161/jaha.120.020246] [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: 12/12/2022]
Abstract
Background Risk of preeclampsia varies by month of delivery. We tested whether this seasonal patterning may be mediated through maternal vitamin D concentration using antenatal exposure to UV‐B radiation as an instrumental variable. Methods and Results Scottish maternity records were linked to antenatal UV‐B exposure derived from satellites between 2000 and 2010. Logistic regression analyses were used to explore the association between UV‐B and preeclampsia, adjusting for the potential confounding effects of month of conception, child's sex, gestation, parity, and mean monthly temperature. Of the 522 896 eligible singleton deliveries, 8689 (1.66%) mothers developed preeclampsia. Total antenatal UV‐B exposure ranged from 43.18 to 101.11 kJ/m2 and was associated with reduced risk of preeclampsia with evidence of a dose‐response relationship (highest quintile of exposure: adjusted odds ratio, 0.57; 95% CI, 0.44–0.72; P<0.001). Associations were demonstrated for UV‐B exposure in all 3 trimesters. Conclusions The seasonal patterning of preeclampsia may be mediated through low maternal vitamin D concentration in winter resulting from low UV‐B radiation. Interventional studies are required to determine whether vitamin D supplements or UV‐B–emitting light boxes can reduce the seasonal patterning of preeclampsia.
Collapse
Affiliation(s)
- Claire E Hastie
- Institute of Health and Wellbeing University of Glasgow United Kingdom
| | - Daniel F Mackay
- Institute of Health and Wellbeing University of Glasgow United Kingdom
| | - Tom L Clemens
- Centre for Research on Environment, Society and Health School of Geosciences University of Edinburgh United Kingdom
| | - Mark P C Cherrie
- Centre for Research on Environment, Society and Health School of Geosciences University of Edinburgh United Kingdom
| | - Lauren J Megaw
- King Edward Memorial Hospital for Women Subiaco Australia
| | - Gordon C S Smith
- Department of Obstetrics and Gynaecology University of Cambridge United Kingdom
| | - Sarah J Stock
- Usher Institute University of Edinburgh United Kingdom
| | - Chris Dibben
- Institute of Geography University of Edinburgh United Kingdom
| | - Jill P Pell
- Institute of Health and Wellbeing University of Glasgow United Kingdom
| |
Collapse
|
11
|
Power determination in vitamin D randomised control trials and characterising factors affecting it through a novel simulation-based tool. Sci Rep 2021; 11:10804. [PMID: 34031451 PMCID: PMC8144427 DOI: 10.1038/s41598-021-90019-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 04/12/2021] [Indexed: 11/21/2022] Open
Abstract
Thousands of observational studies have linked vitamin D deficiency with numerous diseases, but randomised controlled trials (RCTs) often fail to show benefit of supplementation. Population characteristics and trial design have long been suspected to undermine power but were not systematically investigated. We propose a flexible generative model to characterise benefit of vitamin D supplementation at the individual level, and use this to quantify power in RCTs. The model can account for seasonality and population heterogeneity. In a simulated 1-year trial with 1000 participants per arm and assuming a 25-hydroxyvitamin D (25OHD) increase of 20 nmol/L due to the intervention, with baseline 25OHD in the population of 15, 35, 50, 60 and 75 nmol/L, the power to detect intervention effect was 77%, 99%, 95%, 68% and 19%, respectively. The number of participants required per arm to achieve 80% power according to baseline 25OHD of 15–60 nmol/L was 1200, 400, 600 and 1400, respectively. As expected, larger increases in 25OHD due to supplementation improved power in certain scenarios. For a population baseline of 50 nmol/L, with 1500 participants in each arm, there was 100% power to detect a 20 nmol/L 25OHD increase while it was 76% for a 10 nmol/L increase. Population characteristics and trial design, including temporal considerations, have a dramatic impact on power and required sample size in vitamin D RCTs.
Collapse
|
12
|
Association between serum beta-human chorionic gonadotropin and inflammation, oxidative stress in pregnancy-induced hypertension. Microvasc Res 2020; 135:104130. [PMID: 33385382 DOI: 10.1016/j.mvr.2020.104130] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 12/21/2020] [Accepted: 12/26/2020] [Indexed: 11/24/2022]
Abstract
The aberrant increase of circulating beta-human chorionic gonadotropin (β-HCG) at early stages of pregnancy can be used to predict gestational hypertension. However, the association of β-HCG and inflammation, oxidative stress in pregnancy-caused hypertensive disorder on perinatal stage remains unclear. A case-controlled study was performed, with 133 adult pregnant women participated in their perinatal stage. Participants in this research included 45 with mild preeclampsia, 40 with severe preeclampsia and 48 without hypertension. Higher circulating β-HCG level was correlated with severer pregnancy-induced hypertension. Independent contribution of inflammatory factors including interleukin-6, tumor necrosis factor-α and interferon-γ and oxidative stress factors including thiobarbituric acid reactive substance and total antioxidant capacity to severe pregnancy-induced hypertension was significant (P < 0.001). The correlation of circulating β-HCG levels with inflammatory and oxidative stress markers in patients with pregnancy-induced hypertension in perinatal stage was statistically significant.
Collapse
|