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Adjei-Gyamfi S, Zakaria MS, Asirifi A, Issahaku S, Ibrahim MA, Aryee PA. Maternal anaemia and polycythaemia during pregnancy and risk of inappropriate birth weight for gestational age babies: a retrospective cohort study in the northern belt of Ghana. BMJ Open 2024; 14:e082298. [PMID: 39142669 PMCID: PMC11331998 DOI: 10.1136/bmjopen-2023-082298] [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: 11/19/2023] [Accepted: 07/30/2024] [Indexed: 08/16/2024] Open
Abstract
BACKGROUND Small for gestational age (SGA) and large for gestational age (LGA) births are topical issues due to their devastating effects on the life course and are also accountable for neonatal mortalities and long-term morbidities. OBJECTIVE We tested the hypothesis that abnormal haemoglobin levels in each trimester of pregnancy will increase the risk of SGA and LGA deliveries in Northern Ghana. DESIGN A retrospective cohort study was conducted from April to July 2020. SETTINGS AND PARTICIPANTS 422 postpartum mothers who had delivered in the last 6-8 weeks before their interview dates were recruited through a systematic random sampling technique from five primary and public health facilities in Northern Ghana. PRIMARY MEASURES Using the INTERGROWTH-21st standard, SGA and LGA births were obtained. Haemoglobin levels from antenatal records were analysed to determine their effect on SGA and LGA births by employing multinomial logistic regression after adjusting for sociodemographic and obstetric factors at a significance level of α=0.05. RESULTS Prevalence of anaemia in the first, second and third trimesters of pregnancy was 63.5%, 71.3% and 45.3%, respectively, and that of polycythaemia in the corresponding trimesters of pregnancy was 5.9%, 3.6% and 1.7%. About 8.8% and 9.2% of the women delivered SGA and LGA babies, respectively. After adjusting for confounders, anaemic mothers in the third trimester of pregnancy had an increased risk of having SGA births (adjusted OR, aOR 5.56; 95% CI 1.65 to 48.1; p<0.001). Mothers with polycythaemia in the first, second and third trimesters of pregnancy were 93% (aOR 0.07; 95% CI 0.01 to 0.46; p=0.040), 85% (aOR 0.15; 95% CI 0.08 to 0.64; p<0.001) and 88% (aOR 0.12; 95% CI 0.07 to 0.15; p=0.001) protected from having SGA births, respectively. Interestingly, anaemia and polycythaemia across all trimesters of pregnancy were not statistically significant with LGA births. CONCLUSION Anaemia during pregnancy increased from the first to the second trimester and subsequently decreased in the third trimester while polycythaemia consistently decreased from the first to the third trimester. LGA babies were more predominant compared with SGA babies. While anaemia in the third trimester of pregnancy increased the risk of SGA births, polycythaemia across the trimesters offered significant protection. Healthcare providers and stakeholders should target pressing interventions for anaemia reduction throughout pregnancy, especially during the third trimester to achieve healthy birth outcomes.
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Affiliation(s)
- Silas Adjei-Gyamfi
- Savelugu Municipal Hospital, Ghana Health Service, Savelugu, Northern Region, Ghana
| | - Mary Sakina Zakaria
- Savelugu Municipal Hospital, Ghana Health Service, Savelugu, Northern Region, Ghana
| | - Abigail Asirifi
- Department of Midwifery, Garden City University College, Kenyasi - Kumasi, Ashanti Region, Ghana
| | - Sulley Issahaku
- Nanton District Health Directorate, Ghana Health Service, Nanton, Northern Region, Ghana
| | | | - Paul Armah Aryee
- School of Allied Health Sciences, University for Development Studies, Tamale, Northern Region, Ghana
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Song X, Lin J, Dong X, Li M, Xue X, Hou C, Yao H, Hou Q. The Associations of Maternal Blood Hemoglobin and Serum Triglyceride Levels and the Risk of Preterm Delivery. Horm Metab Res 2023; 55:758-764. [PMID: 37903496 DOI: 10.1055/a-2183-8683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/01/2023]
Abstract
The abnormal hemoglobin (HGB) and serum lipid concentrations during pregnancy will increase the risk of preterm delivery. Our study aimed to explore the correlation between prenatal HGB and serum lipid levels and preterm delivery. We enrolled 215 mother-infant pairs in a pilot cohort study. The logistic regression model and Restricted Cubic Spline model (RCS) were used to investigate the levels of prenatal blood HGB and serum lipid such as triglyceride (TG), total cholesterol, high-density lipoprotein, low density lipoprotein and preterm delivery. The results showed that moderate levels of prenatal blood HGB (OR=0.28; 95%CI: 0.10, 0.75, p-trend=0.018) and high level of serum TG (OR=0.29; 95%CI: 0.10, 0.84, p-trend=0.022) level were negatively associated with the risk of preterm delivery. The joint effect results showed that compared with lower level of prenatal blood HGB (≤123.13 g/l) and TG (≤3.7 mmol/l), we found that high levels prenatal blood HGB and serum TG (OR=0.32, 95%CI: 0.12, 0.89) had a negative association with the risk of preterm delivery. Moreover, prenatal blood HGB and serum TG levels had negative linear dose-effect relationships with the risk of preterm delivery in overall and girl group (p<0.05). Moderate levels of prenatal blood HGB and high level of serum TG were negatively associated with the risk of preterm delivery. The joint effect of high levels prenatal HGB and prenatal serum TG in the normal range were negatively correlated with preterm delivery. Moreover, the underlying mechanisms should be clarified in future studies.
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Affiliation(s)
- Xia Song
- Gynecology, Shandong Provincial Maternal and Child Health Care Hospital, Jinan, China
| | - Jiujing Lin
- School of Public Health and Health Management, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Xiaoxiao Dong
- Shandong Provincial Maternal and Child Health Care Hospital, Shandong, Jinan, China
| | - Mengyun Li
- Gynecology, Shandong Provincial Maternal and Child Health Care Hospital, Jinan, China
| | - Xiangsheng Xue
- School of Public Health and Health Management, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Chenyang Hou
- Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Huichen Yao
- Cardiology Department, The Third Affiliated Hospital of Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Qingzhi Hou
- School of Public Health and Health Management, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
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Berger R, Abele H, Bahlmann F, Doubek K, Felderhoff-Müser U, Fluhr H, Garnier Y, Grylka-Baeschlin S, Hayward A, Helmer H, Herting E, Hoopmann M, Hösli I, Hoyme U, Kunze M, Kuon RJ, Kyvernitakis I, Lütje W, Mader S, Maul H, Mendling W, Mitschdörfer B, Nothacker M, Olbertz D, Ramsell A, Rath W, Roll C, Schlembach D, Schleußner E, Schütz F, Seifert-Klauss V, Stubert J, Surbek D. Prevention and Therapy of Preterm Birth. Guideline of the DGGG, OEGGG and SGGG (S2k-Level, AWMF Registry Number 015/025, September 2022) - Part 1 with Recommendations on the Epidemiology, Etiology, Prediction, Primary and Secondary Prevention of Preterm Birth. Geburtshilfe Frauenheilkd 2023; 83:547-568. [PMID: 37152544 PMCID: PMC10159718 DOI: 10.1055/a-2044-0203] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 01/22/2023] [Indexed: 05/09/2023] Open
Abstract
Aim This revised guideline was coordinated by the German Society for Gynecology and Obstetrics (DGGG), the Austrian Society for Gynecology and Obstetrics (OEGGG) and the Swiss Society for Gynecology and Obstetrics (SGGG). It aims to improve the prediction, prevention, and management of preterm birth, based on evidence from the current literature, the experience of members of the guidelines commission, and the viewpoint of self-help organizations. Methods The members of the contributing professional societies and organizations developed recommendations and statements based on international literature. The recommendations and statements were presented and adopted using a formal process (structured consensus conferences with neutral moderation, written Delphi vote). Recommendations Part 1 of this short version of the guideline presents statements and recommendations on the epidemiology, etiology, prediction, and primary and secondary prevention of preterm birth.
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Affiliation(s)
- Richard Berger
- Frauenklinik, Marienhaus Klinikum Neuwied, Neuwied, Germany
| | - Harald Abele
- Frauenklinik, Universitätsklinikum Tübingen, Tübingen, Germany
| | - Franz Bahlmann
- Frauenklinik, Bürgerhospital Frankfurt, Frankfurt am Main, Germany
| | | | - Ursula Felderhoff-Müser
- Klinik für Kinderheilkunde I/Perinatalzentrum, Universitätsklinikum Essen, Universität Duisburg-Essen, Essen, Germany
| | - Herbert Fluhr
- Frauenklinik, Universitätsklinikum Graz, Graz, Austria
| | - Yves Garnier
- Frauenklinik, Klinikum Osnabrück, Osnabrück, Germany
| | - Susanne Grylka-Baeschlin
- Zürcher Hochschule für angewandte Wissenschaften, Institut für Hebammenwissenschaft und reproduktive Gesundheit, Zürich, Switzerland
| | | | - Hanns Helmer
- Universitätsklinik für Frauenheilkunde, Medizinische Universität Wien, Wien, Austria
| | - Egbert Herting
- Klinik für Kinder- und Jugendmedizin, Universitätsklinikum Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Markus Hoopmann
- Frauenklinik, Universitätsklinikum Tübingen, Tübingen, Germany
| | - Irene Hösli
- Frauenklinik, Universitätsspital Basel, Basel, Switzerland
| | - Udo Hoyme
- Frauenklinik, Ilm-Kreis-Kliniken, Arnstadt, Germany
| | - Mirjam Kunze
- Frauenklinik, Universitätsklinikum Freiburg, Freiburg, Germany
| | - Ruben-J. Kuon
- Frauenklinik, Universitätsklinikum Heidelberg, Heidelberg, Germany
| | | | - Wolf Lütje
- Frauenklinik, Evangelisches Amalie Sieveking-Krankenhaus Hamburg, Hamburg, Germany
| | - Silke Mader
- European Foundation for the Care of Newborn Infants, München, Germany
| | - Holger Maul
- Frauenklinik, Asklepios Kliniken Hamburg, Hamburg, Germany
| | - Werner Mendling
- Frauenklinik, Helios Universitätsklinikum Wuppertal, Wuppertal, Germany
| | | | - Monika Nothacker
- Arbeitsgemeinschaft der Wissenschaftlichen Medizinischen Fachgesellschaften, Berlin, Germany
| | - Dirk Olbertz
- Klinik für Neonatologie, Klinikum Südstadt Rostock, Rostock, Germany
| | | | - Werner Rath
- Emeritus, Universitätsklinikum Aachen, Aachen, Germany
| | - Claudia Roll
- Vestische Kinder- und Jugendklinik Datteln, Universität Witten/Herdecke, Datteln, Germany
| | - Dietmar Schlembach
- Klinik für Geburtsmedizin, Klinikum Neukölln/Berlin Vivantes Netzwerk für Gesundheit, Berlin, Germany
| | | | - Florian Schütz
- Frauenklinik, Diakonissen-Stiftungs-Krankenhaus Speyer, Speyer, Germany
| | | | | | - Daniel Surbek
- Universitätsklinik für Frauenheilkunde, Inselspital Bern, Universität Bern, Bern, Switzerland
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Berger R, Abele H, Bahlmann F, Doubek K, Felderhoff-Müser U, Fluhr H, Garnier Y, Grylka-Baeschlin S, Hayward A, Helmer H, Herting E, Hoopmann M, Hösli I, Hoyme U, Kunze M, Kuon RH, Kyvernitakis I, Lütje W, Mader S, Maul H, Mendling W, Mitschdörfer B, Nothacker M, Olbertz D, Ramsell A, Rath W, Roll C, Schlembach D, Schleußner E, Schütz F, Seifert-Klauss V, Stubert J, Surbek D. Prevention and Therapy of Preterm Birth. Guideline of the DGGG, OEGGG and SGGG (S2k Level, AWMF Registry Number 015/025, September 2022) - Part 2 with Recommendations on the Tertiary Prevention of Preterm Birth and on the Management of Preterm Premature Rupture of Membranes. Geburtshilfe Frauenheilkd 2023; 83:569-601. [PMID: 37169014 PMCID: PMC10166648 DOI: 10.1055/a-2044-0345] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 01/22/2023] [Indexed: 05/13/2023] Open
Abstract
Aim The revision of this guideline was coordinated by the German Society for Gynecology and Obstetrics (DGGG), the Austrian Society for Gynecology and Obstetrics (OEGGG) and the Swiss Society for Gynecology and Obstetrics (SGGG). The aim of the guideline is to improve the prediction, prevention and management of preterm birth based on evidence from the current literature, the experience of members of the guidelines commission, and the viewpoint of self-help organizations. Methods The members of the contributing professional societies and organizations developed recommendations and statements based on international literature. The recommendations and statements were presented and adopted using a formal process (structured consensus conferences with neutral moderation, written Delphi vote). Recommendations Part 2 of this short version of the guideline presents statements and recommendations on the tertiary prevention of preterm birth and the management of preterm premature rupture of membranes.
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Affiliation(s)
- Richard Berger
- Frauenklinik, Marienhaus Klinikum Neuwied, Neuwied, Germany
| | - Harald Abele
- Frauenklinik, Universitätsklinikum Tübingen, Tübingen, Germany
| | - Franz Bahlmann
- Frauenklinik, Bürgerhospital Frankfurt, Frankfurt am Main, Germany
| | | | - Ursula Felderhoff-Müser
- Klinik für Kinderheilkunde I/Perinatalzentrum, Universitätsklinikum Essen, Universität Duisburg-Essen, Essen, Germany
| | - Herbert Fluhr
- Frauenklinik, Universitätsklinikum Graz, Graz, Austria
| | - Yves Garnier
- Frauenklinik, Klinikum Osnabrück, Osnabrück, Germany
| | - Susanne Grylka-Baeschlin
- Zürcher Hochschule für angewandte Wissenschaften, Institut für Hebammenwissenschaft und reproduktive Gesundheit, Zürich, Switzerland
| | | | - Hanns Helmer
- Universitätsklinik für Frauenheilkunde, Medizinische Universität Wien, Wien, Austria
| | - Egbert Herting
- Klinik für Kinder- und Jugendmedizin, Universitätsklinikum Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Markus Hoopmann
- Frauenklinik, Universitätsklinikum Tübingen, Tübingen, Germany
| | - Irene Hösli
- Frauenklinik, Universitätsspital Basel, Basel, Switzerland
| | - Udo Hoyme
- Frauenklinik, Ilm-Kreis-Kliniken, Arnstadt, Germany
| | - Mirjam Kunze
- Frauenklinik, Universitätsklinikum Freiburg, Freiburg, Germany
| | - Ruben-H. Kuon
- Frauenklinik, Universitätsklinikum Heidelberg, Heidelberg, Germany
| | | | - Wolf Lütje
- Frauenklinik, Evangelisches Amalie Sieveking-Krankenhaus Hamburg, Hamburg, Germany
| | - Silke Mader
- European Foundation for the Care of Newborn Infants, München, Germany
| | - Holger Maul
- Frauenklinik, Asklepios Kliniken Hamburg, Hamburg, Germany
| | - Werner Mendling
- Frauenklinik, Helios Universitätsklinikum Wuppertal, Wuppertal, Germany
| | | | - Monika Nothacker
- Arbeitsgemeinschaft der Wissenschaftlichen Medizinischen Fachgesellschaften, Berlin
| | - Dirk Olbertz
- Klinik für Neonatologie, Klinikum Südstadt Rostock, Rostock, Germany
| | | | - Werner Rath
- Emeritus, Universitätsklinikum Aachen, Aachen, Germany
| | - Claudia Roll
- Vestische Kinder- und Jugendklinik Datteln, Universität Witten/Herdecke, Datteln, Germany
| | - Dietmar Schlembach
- Klinik für Geburtsmedizin, Klinikum Neukölln/Berlin Vivantes Netzwerk für Gesundheit, Berlin, Germany
| | | | - Florian Schütz
- Frauenklinik, Diakonissen-Stiftungs-Krankenhaus Speyer, Speyer, Germany
| | | | | | - Daniel Surbek
- Universitätsklinik für Frauenheilkunde, Inselspital Bern, Universität Bern, Bern, Switzerland
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Young MF, Oaks BM, Rogers HP, Tandon S, Martorell R, Dewey KG, Wendt AS. Maternal low and high hemoglobin concentrations and associations with adverse maternal and infant health outcomes: an updated global systematic review and meta-analysis. BMC Pregnancy Childbirth 2023; 23:264. [PMID: 37076797 PMCID: PMC10114461 DOI: 10.1186/s12884-023-05489-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 03/02/2023] [Indexed: 04/21/2023] Open
Abstract
BACKGROUND Growing evidence suggests low and high maternal hemoglobin (Hb) concentrations may have adverse consequences for maternal and child health. There remain questions on specific Hb thresholds to define anemia and high Hb as well as how cutoffs may vary by anemia etiology and timing of assessment. METHODS We conducted an updated systematic review (using PubMed and Cochrane Review) on low (< 110 g/L) and high (≥ 130 g/L) maternal Hb concentrations and associations with a range of maternal and infant health outcomes. We examined associations by timing of Hb assessment (preconception; first, second, and third trimesters, as well as at any time point in pregnancy), varying cutoffs used for defining low and high hemoglobin concentrations and performed stratified analyses by iron-deficiency anemia. We conducted meta-analyses to obtain odds ratios (OR) and 95% confidence intervals. RESULTS The updated systematic review included 148 studies. Low maternal Hb at any time point in pregnancy was associated with: low birthweight, LBW (OR (95% CI) 1.28 (1.22-1.35)), very low birthweight, VLBW (2.15 (1.47-3.13)), preterm birth, PTB (1.35 (1.29-1.42)), small-for-gestational age, SGA (1.11 (1.02-1.19)), stillbirth 1.43 (1.24-1.65)), perinatal mortality (1.75 (1.28-2.39)), neonatal mortality (1.25 (1.16-1.34), postpartum hemorrhage (1.69 (1.45-1.97)), transfusion (3.68 (2.58-5.26)), pre-eclampsia (1.57 (1.23-2.01)), and prenatal depression (1.44 (1.24-1.68)). For maternal mortality, the OR was higher for Hb < 90 (4.83 (2.17-10.74)) than for Hb < 100 (2.87 (1.08-7.67)). High maternal Hb was associated with: VLBW (1.35 (1.16-1.57)), PTB (1.12 (1.00-1.25)), SGA (1.17 (1.09-1.25)), stillbirth (1.32 (1.09-1.60)), maternal mortality (2.01 (1.12-3.61)), gestational diabetes (1.71 (1.19-2.46)), and pre-eclampsia (1.34 (1.16-1.56)). Stronger associations were noted earlier in pregnancy for low Hb and adverse birth outcomes while the role of timing of high Hb was inconsistent. Lower Hb cutoffs were associated with greater odds of poor outcomes; for high Hb, data were too limited to identify patterns. Information on anemia etiology was limited; relationships did not vary by iron-deficiency anemia. CONCLUSION Both low and high maternal Hb concentrations during pregnancy are strong predictors of adverse maternal and infant health outcomes. Additional research is needed to establish healthy reference ranges and design effective interventions to optimize maternal Hb during pregnancy.
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Affiliation(s)
- Melissa F Young
- Hubert Department of Global Health, Emory University, 1518 Clifton Road NE, 30322, Atlanta, GA, USA.
| | - Brietta M Oaks
- Department of Nutrition and Food Sciences, University of Rhode Island, 02881, Kingston, United States
| | - Hannah Paige Rogers
- Hubert Department of Global Health, Emory University, 1518 Clifton Road NE, 30322, Atlanta, GA, USA
| | - Sonia Tandon
- Hubert Department of Global Health, Emory University, 1518 Clifton Road NE, 30322, Atlanta, GA, USA
| | - Reynaldo Martorell
- Hubert Department of Global Health, Emory University, 1518 Clifton Road NE, 30322, Atlanta, GA, USA
| | - Kathryn G Dewey
- Department of Nutrition, University of California, Davis, 95616, Davis, United States
| | - Amanda S Wendt
- Research Department 2, Potsdam Institute for Climate Impact Research (PIK), Member of the Leibniz Association, PO Box 60 12 03, 14412,, Potsdam, Germany
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Young MF, Nguyen P, Tran LM, Khuong LQ, Martorell R, Ramakrishnan U. Long term association between of maternal preconception hemoglobin and anemia and child health and development in Vietnam. J Nutr 2023; 153:1597-1606. [PMID: 36925072 PMCID: PMC10367189 DOI: 10.1016/j.tjnut.2023.03.015] [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: 12/20/2022] [Revised: 02/10/2023] [Accepted: 03/10/2023] [Indexed: 03/15/2023] Open
Abstract
BACKGROUND The long-term association between preconception maternal hemoglobin (Hb) concentrations and child health and development is unclear. OBJECTIVE We examined associations between maternal preconception Hb concentrations and anemia with: a) birth outcomes (weight, length, preterm, gestational age, small-for-gestational-age); b) child Hb at 3 mo, 6 mo, 12 mo, and 24 mo; c) motor and mental development at 12 mo and 24 mo (Bayley scales for infant development) and cognitive functioning at 6-7y (Wechsler Intelligence Scale for Children). METHODS We used data from a randomized controlled trial (PRECONCEPT) conducted in Vietnam. Over 5000 women who were intending to conceive were recruited and offspring were prospectively followed from birth (n=1599) through 6-7y (n=1318). Multivariable linear and logistic regressions were used to assess the association between preconception Hb or anemia (Hb < 11g/dL) on child health and development outcomes, adjusted by supplementation group (tested for interactions) and confounding at maternal, child and household levels. RESULTS At preconception enrollment, 20% of the women were anemic. Maternal preconception Hb was positively associated with child Hb at 3 mo (0.06; 95% CI: 0.01,0.12), 6 mo (0.08; 95% CI: 0.03,0.13), 12 mo (0.10; 95% CI: 0.04-0.15) and 24 mo (0.07; 95% CI: 0.02,0.12). Likewise, maternal preconception Hb was associated with reduced risk of child anemia at 6mo (0.89; 95% CI: 0.81-0.98), 12 mo (0.81; 95% CI: 0.74-0.89) and 24 mo (0.87; 95% CI: 0.79-0.95). Maternal preconception anemia was negatively associated with cognition (-1.64; 95% CI: -3.09, -0.19) and language development (-1.61; 95% CI: -3.20, -0.03) at 24mo. Preconception Hb was not associated with birth outcomes or cognitive outcomes at 6-7y. CONCLUSION Maternal preconception Hb was associated with child Hb across the first 1000 days of life. However, preconception Hb was not a significant predictor of birth outcomes or cognitive outcomes at 6-7y in this cohort from Vietnam.
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Affiliation(s)
- Melissa F Young
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA.
| | - Phuong Nguyen
- Poverty, Health and Nutrition Division, International Food Policy Research Institute (IFPRI), Washington, DC, USA; Thai Nguyen University of Pharmacy and Medicine, Thai Nguyen, Vietnam
| | - Lan Mai Tran
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | | | - Reynaldo Martorell
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Usha Ramakrishnan
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
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Möglichkeiten des Frühgeburtsscreenings. DIE GYNÄKOLOGIE 2022. [PMCID: PMC9795432 DOI: 10.1007/s00129-022-05033-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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An SL, Xiong SM, Shen XB, Ni YQ, Chen W, He CD, Zhou YZ. The associations between exposure to trihalomethanes during pregnancy and adverse birth outcomes: A systematic review and meta-analysis. CHEMOSPHERE 2022; 293:133524. [PMID: 34990723 DOI: 10.1016/j.chemosphere.2022.133524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 12/14/2021] [Accepted: 01/02/2022] [Indexed: 06/14/2023]
Abstract
The study aimed to examine the associations between the level of trihalomethanes and its metabolites in pregnancy and the risks of adverse birth outcomes. We searched the databases of the China National Knowledge Infrastructure, WanFang, Vip, PubMed, and Elsevier Science Direct from database establishment to July 14, 2021 and performed a systematic review and meta-analysis of observational studies reporting associations between trihalomethanes level and abnormally low birth weight and preterm birth. The pooled odds ratio (OR), pooled risk ratio, and pooled risk difference with their 95% confidence interval (CI) were calculated for risk estimates. A total of 24 studies involving 1,118,037 pregnant women were finally enrolled in the present systematic review and meta-analysis. Our research found that abnormally low birth weight was associated with higher levels of total trihalomethanes (OR = 2.45, 95% CI: 1.28, 4.68; P = 0.007). Unexpectedly, the meta-analysis indicated that higher total trihalomethanes level was associated with lower odds of preterm birth (OR = 0.90, 95% CI: 0.81, 0.99; P = 0.03). Our findings indicate that trihalomethanes exposure might be a risk factor for abnormally low birth weight and that it would be prudent to minimize exposure to trihalomethanes during pregnancy because of the risk of abnormally low birth weight. Given some limitations of the systematic review and meta-analysis, our results should be interpreted with caution.
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Affiliation(s)
- Song-Lin An
- School of Public Health, Zunyi Medical University, Zunyi, Guizhou, 563060, PR China
| | - Shi-Min Xiong
- School of Public Health, Zunyi Medical University, Zunyi, Guizhou, 563060, PR China
| | - Xu-Bo Shen
- School of Public Health, Zunyi Medical University, Zunyi, Guizhou, 563060, PR China
| | - Yun-Qiao Ni
- School of Public Health, Zunyi Medical University, Zunyi, Guizhou, 563060, PR China
| | - Wei Chen
- School of Public Health, Zunyi Medical University, Zunyi, Guizhou, 563060, PR China
| | - Cai-Die He
- School of Public Health, Zunyi Medical University, Zunyi, Guizhou, 563060, PR China
| | - Yuan-Zhong Zhou
- School of Public Health, Zunyi Medical University, Zunyi, Guizhou, 563060, PR China.
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Liu X, An H, Li N, Li Z, Zhang Y, Zhang L, Li H, Liu J, Ye R. Preconception Hemoglobin Concentration and Risk of Low Birth Weight and Small-for-Gestational-Age: A Large Prospective Cohort Study in China. Nutrients 2022; 14:nu14020271. [PMID: 35057452 PMCID: PMC8780179 DOI: 10.3390/nu14020271] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 01/03/2022] [Accepted: 01/06/2022] [Indexed: 12/18/2022] Open
Abstract
Less is known about the impact of maternal preconception anemia on birth outcomes. We aimed to examine associations between preconception hemoglobin (Hb) concentrations with risk of low birth weight (LBW) and small-for-gestational-age (SGA). This study was from a large population-based prospective cohort in China and included 124,725 women with singleton live births delivered at gestational ages of 28–45 weeks who were registered before pregnancy. Maternal Hb concentrations were measured during registration, and other health-related information was recorded prospectively. Logistic regression was used to evaluate the associations between preconception Hb concentrations with risk of LBW and SGA, adjusting for potential confounders. The results showed women with preconception anemia accounted for 22.28%. The incidences of LBW/SGA were 2.37%/6.30% among anemic women, and 2.01%/5.48% among non-anemic women, respectively. Preconception mild anemia increased by 17% (95% confidence interval (CI): 1.06, 1.28) and 14% (95% CI: 1.07, 1.21) the risk for LBW and SGA, while moderate-to-severe anemia had no significant association with LBW and SGA. Compared with the 120–129 g/L group, a U-shaped association was observed between preconception Hb concentrations with LBW and SGA. In conclusion, not only maternal anemia but also elevated Hb concentrations before pregnancy contribute to an increased risk of LBW and SGA.
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Affiliation(s)
- Xiaojing Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China; (X.L.); (H.A.); (Y.Z.); (L.Z.); (H.L.); (J.L.); (R.Y.)
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing 100191, China
| | - Hang An
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China; (X.L.); (H.A.); (Y.Z.); (L.Z.); (H.L.); (J.L.); (R.Y.)
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing 100191, China
| | - Nan Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China; (X.L.); (H.A.); (Y.Z.); (L.Z.); (H.L.); (J.L.); (R.Y.)
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing 100191, China
- Correspondence: (N.L.); (Z.L.)
| | - Zhiwen Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China; (X.L.); (H.A.); (Y.Z.); (L.Z.); (H.L.); (J.L.); (R.Y.)
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing 100191, China
- Correspondence: (N.L.); (Z.L.)
| | - Yali Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China; (X.L.); (H.A.); (Y.Z.); (L.Z.); (H.L.); (J.L.); (R.Y.)
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing 100191, China
| | - Le Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China; (X.L.); (H.A.); (Y.Z.); (L.Z.); (H.L.); (J.L.); (R.Y.)
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing 100191, China
| | - Hongtian Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China; (X.L.); (H.A.); (Y.Z.); (L.Z.); (H.L.); (J.L.); (R.Y.)
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing 100191, China
| | - Jianmeng Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China; (X.L.); (H.A.); (Y.Z.); (L.Z.); (H.L.); (J.L.); (R.Y.)
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing 100191, China
| | - Rongwei Ye
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China; (X.L.); (H.A.); (Y.Z.); (L.Z.); (H.L.); (J.L.); (R.Y.)
- Institute of Reproductive and Child Health/Ministry of Health Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing 100191, China
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Li Z, Chen Y, Zeng X, Stephen S, Li Y, Li H, Dong L, He T, Zhang S, Yang P, Jiang W, Fan H. Clinical and hemodynamic insights into the use of internal iliac artery balloon occlusion as a prophylactic technique for treating postpartum hemorrhage. J Biomech 2021; 129:110827. [PMID: 34736088 DOI: 10.1016/j.jbiomech.2021.110827] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 09/02/2021] [Accepted: 10/16/2021] [Indexed: 11/19/2022]
Abstract
Recently, the effectiveness of internal iliac artery balloon occlusion (IIABO) for treating postpartum hemorrhage caused by pernicious placenta previa (PPP) has been questioned. We conducted a retrospective analysis and hemodynamic simulation to assess the IIABO's effectiveness. The retrospective analysis involved 480 patients with PPP, among which 288 underwent IIABO treatment and the remaining 192 were used as controls. Blood loss and preoperative indicators were recorded, and multiple regression analysis was applied to test the effect of preoperative indicators on blood loss. Hemorrhage mechanisms were simulated using a numerical model. Results suggested that no significant difference in blood loss (1836 ± 1440 ml vs. 1784 ± 1647 ml, p = 0.22) was observed between the two groups. In addition, preoperative indicators, including age, weight, gestational age, gravidity, parity, blood type, anemia, or diabetes, were not associated with blood loss. In the simulation, after the intra-iliac artery was blocked, blood loss was caused by a reversed flow in the intrapelvic arteries, uterine veins, and uterine venules. The ratio of the time-averaged hemorrhage velocity (TAHV) in the balloon group to that in the control group was lower than that obtained in a clinical study (13.0% vs. 88.9%); in the presence of collateral circulation, blood loss occurred from collateral circulation and uterine venules after IIABO intervention, and the TAHV was 60%-90% that of the control group, which was closer to the clinical results (88.9%). These results suggest that IIABO cannot effectively treat postpartum hemorrhage because of the collateral circulation and reversed flow in the uterine venules.
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Affiliation(s)
- Zhongyou Li
- Department of Applied Mechanics, Sichuan University, Chengdu 610065, China
| | - Yu Chen
- Department of Applied Mechanics, Sichuan University, Chengdu 610065, China; Medical Big Data Center, Sichuan University, Chengdu 610041, China.
| | - Xiaoxi Zeng
- Medical Big Data Center, Sichuan University, Chengdu 610041, China
| | - Salerno Stephen
- Department of Biostatistics, University of Michigan, Ann Arbor, MI, USA
| | - Yi Li
- Department of Biostatistics, University of Michigan, Ann Arbor, MI, USA
| | - Huafeng Li
- West China Second Hospital, Sichuan University, Chengdu 610041, China.
| | - Lihua Dong
- Department of Anatomy, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - Teng He
- Department of Applied Mechanics, Sichuan University, Chengdu 610065, China
| | - Shihong Zhang
- West China Second Hospital, Sichuan University, Chengdu 610041, China
| | - Pei Yang
- West China Second Hospital, Sichuan University, Chengdu 610041, China
| | - Wentao Jiang
- Department of Applied Mechanics, Sichuan University, Chengdu 610065, China
| | - Haidong Fan
- Department of Applied Mechanics, Sichuan University, Chengdu 610065, China
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Puerto A, Trojan A, Alvis-Zakzuk NR, López-Saleme R, Edna-Estrada F, Alvarez A, Alvis-Guzman N, Zakzuk J. Iron status in late pregnancy is inversely associated with birth weight in Colombia. Public Health Nutr 2021; 24:5090-5100. [PMID: 33860744 PMCID: PMC11082807 DOI: 10.1017/s136898002100166x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 02/08/2021] [Accepted: 04/09/2021] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Gestational anaemia (GA) is common in developing countries. This study assessed the relationship of late GA and negative perinatal outcomes in participants recruited in a reference maternity unit of the Caribbean region of Colombia. DESIGN Prospective analytical birth cohort study. Maternal Hb and serum ferritin (SF) levels were measured. GA was defined as Hb levels <6·82 mmol/l (<11 g/dl), SF depletion as SF levels <12 µg/l. Birth outcomes such as low birth weight (LBW), preterm birth (PB) and small for gestational age (SGA) were examined. SETTING Mothers in the first stage of labour, living in urban or rural areas of Bolívar, were enrolled in an obstetrical centre located in Cartagena, Colombia. Blood and stool samples were taken prior delivery. Maternal blood count, SF levels and infant anthropometric data were recorded for analysis. PARTICIPANTS 1218 pregnant women aged 18-42 years and their newborns. RESULTS Prevalence of GA and SF depletion was 41·6 % and 41·1 %, respectively. GA was positively associated with poverty-related sociodemographic conditions. Prenatal care attendance lowered the risk of PB, LBW and SGA. Birth weight was inversely associated with Hb levels, observing a -36·8 g decrease in newborn weight per 0·62 mmol/l (or 1 g/dl) of maternal Hb. SF depletion, but not anaemia, was associated with PB. SGA outcome showed a significant association with anaemia, but not a significant relationship with SF depletion. CONCLUSIONS Birth weight and other-related perinatal outcomes are negatively associated with Hb and SF depletion. Prenatal care attendance reduced the risk of negative birth outcomes.
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Affiliation(s)
- Alejandra Puerto
- ALZAK Foundation, Cartagena, Colombia
- Universidad de Cartagena, Carrera 5 #67-135, Edificio el Velero Apto 402, Barrio Crespo, Cartagena, Colombia
| | - Annabelle Trojan
- Universidad de Cartagena, Carrera 5 #67-135, Edificio el Velero Apto 402, Barrio Crespo, Cartagena, Colombia
| | | | - Rossana López-Saleme
- Universidad de Cartagena, Carrera 5 #67-135, Edificio el Velero Apto 402, Barrio Crespo, Cartagena, Colombia
| | - Francisco Edna-Estrada
- Centro de Investigación Para la Salud Materna Perinatal y de la Mujer, Clínica Maternidad Rafael Calvo C, Barranquilla, Colombia
| | - Alvaro Alvarez
- Universidad de Cartagena, Carrera 5 #67-135, Edificio el Velero Apto 402, Barrio Crespo, Cartagena, Colombia
| | - Nelson Alvis-Guzman
- ALZAK Foundation, Cartagena, Colombia
- Universidad de Cartagena, Carrera 5 #67-135, Edificio el Velero Apto 402, Barrio Crespo, Cartagena, Colombia
- Universidad de la Costa, Barranquilla, Colombia
| | - Josefina Zakzuk
- ALZAK Foundation, Cartagena, Colombia
- Universidad de Cartagena, Carrera 5 #67-135, Edificio el Velero Apto 402, Barrio Crespo, Cartagena, Colombia
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Prediction of anemia at delivery. Sci Rep 2021; 11:6309. [PMID: 33737646 PMCID: PMC7973554 DOI: 10.1038/s41598-021-85622-7] [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: 08/16/2020] [Accepted: 01/20/2021] [Indexed: 11/09/2022] Open
Abstract
We aimed to assess risk factors for anemia at delivery by conducting a secondary analysis of a prospective cohort study database including 1527 women who delivered vaginally ≥ 36 gestational weeks. Anemia (Hemoglobin (Hb) < 10.5 g/dL) was assessed at delivery. A complete blood count results during pregnancy as well as maternal and obstetrical characteristics were collected. The primary endpoint was to determine the Hb cutoff between 24 and 30 gestational weeks that is predictive of anemia at delivery by using the area under the curve (AUC) of the receiver operating characteristic curve. Independent risk factors for anemia at delivery were assessed using stepwise multivariable logistic regression. Hb and infrequent iron supplement treatment were independent risk factors for anemia at delivery (OR 0.3 95%CI [0.2–0.4] and OR 2.4 95%CI [1.2–4.8], respectively; C statistics 83%). Hb 10.6 g/dL was an accurate cutoff to predict anemia at delivery (AUC 80% 95%CI 75–84%; sensitivity 75% and specificity 74%). Iron supplement was beneficial to prevent anemia regardless of Hb value. Altogether, Hb should be routinely tested between 24 and 30 gestational weeks to screen for anemia. A flow chart for anemia screening and treatment during pregnancy is proposed in the manuscript. Trial registration: ClinicalTrials.gov Identifier: NCT02434653.
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Patel S, Verma NR, Padhi P, Naik T, Nanda R, Naik G, Mohapatra E. Retrospective analysis to identify the association of various determinants on birth weight. J Family Med Prim Care 2021; 10:496-501. [PMID: 34017777 PMCID: PMC8132747 DOI: 10.4103/jfmpc.jfmpc_1493_20] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 09/29/2020] [Accepted: 10/12/2020] [Indexed: 11/04/2022] Open
Abstract
Objectives: LBW is the strong determinant of neonatal morbidity and mortality with a global prevalence of nearly 15%. India's prevalence, though not yet established, ranges from 16-30% and influenced by maternal nutritional status, antenatal care and associated maternal morbidity. Hence, the study was aimed to determine the influencing parameters for occurrence of LBW. Study Design: A retrospective observational study conducted for all live newborns delivered in a tertiary care centre during the study period of twenty four months. Methods: Data from institutional medical record section was recorded on predesigned questionnaire from a total of 1216 newborns. Results: The percentage of LBW was found to be 27.55% (335/1216) with a proportion of LBW to NBW babies was approximately 1:3. The occurrence of LBW was significantly higher in babies of anemic mothers (59.39%, P < 0.0001), young mothers (30.39%, P < 0.01), mothers with parity ≥ 3 (35.71%, P < 0.05), those with <3 ANC check-up (56.88%, P < 0.0001) and those with premature delivery (71.57%, P < 0.0001). Maternal anemia (OR 4.7, 95%CI 3.4-6.7, P < 0.001); ANC with <3 visits (OR 2.2, 95%CI 1.4-3.4, P < 0.01) and prematurity (OR 7.6, 95%CI 5.1-11.2, P < 0.0001) were considered as independent risk factor for LBW. Significant association of neonatal complications was found with LBW babies (OR 1.6, 95%CI 1.1-2.5, P < 0.05). Conclusions: Inadequate antenatal care, maternal anemia and other maternal illness causing premature delivery are considered critical determinants for LBW and thus associated with high neonatal mortality and morbidity. Continued focus for improving the overall maternal health status would lead to lowering burden of LBW.
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Affiliation(s)
- Suprava Patel
- Associate Professor, Department of Biochemistry, All India Institute of Medical Sciences, Raipur, Chhattisgarh, India
| | - Neha R Verma
- Senior Resident, Department of Biochemistry, All India Institute of Medical Sciences, Raipur, Chhattisgarh, India
| | - Phalguni Padhi
- Assistant Professor, Department of Pediatrics, All India Institute of Medical Sciences, Raipur, Chhattisgarh, India
| | - Tripty Naik
- Assistant Professor, Department of Pediatrics, All India Institute of Medical Sciences, Raipur, Chhattisgarh, India
| | - Rachita Nanda
- Additional Professor, Department of Biochemistry, All India Institute of Medical Sciences, Raipur, Chhattisgarh, India
| | - Gitismita Naik
- Senior Resident, Department of Community and Family Medicine, All India Institute of Medical Sciences, Raipur, Chhattisgarh, India
| | - Eli Mohapatra
- Professor, Department of Biochemistry, All India Institute of Medical Sciences, Raipur, Chhattisgarh, India
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Jamshed S, Khan F, Chohan SK, Bano Z, Shahnawaz S, Anwar A, Hashmi AA. Frequency of Normal Birth Length and Its Determinants: A Cross-Sectional Study in Newborns. Cureus 2020; 12:e10556. [PMID: 33101803 PMCID: PMC7575309 DOI: 10.7759/cureus.10556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Objectives There are several factors that may affect the length and height of the infant. Maternal factors include a wide array of factors (anthropometric, hematological, or genetic), which can affect newborn health determinants. The objective of this study was to evaluate the frequency of normal birth length and its determinants in newborns. Methods This retrospective cross-sectional study was carried out at the Obstetrics and Gynaecological Department of Hamdard Hospital, Karachi, Pakistan, from March 1, 2019, to August 31, 2019. The relevant data were gathered by trained data collectors with the help of a structured questionnaire designed specifically for the study after taking written informed consent from all the participants. Data analysis was performed using Statistical Package for Social Sciences Version 20. Binary logistic regression was applied to develop a risk assessment model for the study outcome. Results Out of 195 pregnant mothers, 57 (29.2%) had low birth weight infants. Mean age of mothers was 29.29±5.22 years, 142 (72.8%) had BMI of 25.0 or more, 102 (52.3%) had hemoglobin between 10 to 11 mg/dL, 172 (88.2%) used to take vitamin C and iron during pregnancy, 136 (69.7%) consumed extra meals during pregnancy, and only 5 (2.6%) were tobacco smokers/chewers. Hundred (51.3%) newborns had normal birth length, i.e., >48 cm. The mother's mid-arm circumference > 22 cm (adjusted odds ratio [AOR]: 4.719; 95% CI: 2.337-9.527; p<0.001), consumption of extra meals during pregnancy (AOR: 3.947; 95% CI: 1.627-9.574; p=0.002), hemoglobin > 11 mg/dL (AOR: 4.314; 95% CI: 1.779-10.463; p=0.001), and adequate rest during pregnancy (AOR: 3.798; 95% CI: 1.464-9.848; p=0.006) were significantly associated with normal birth length of the infants, i.e., >48 cm. Conclusions Mother's mid-arm circumference > 22 cm, consumption of extra meals during pregnancy, hemoglobin > 11 mg/dL, and adequate rest during pregnancy were found to be significant predictors of normal birth length of the infants.
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Affiliation(s)
- Saira Jamshed
- Obstetrics and Gynecology, Hamdard University Hospital, Karachi, PAK
| | - Farah Khan
- Obstetrics and Gynecology, Hamdard University Hospital, Karachi, PAK
| | | | - Zakia Bano
- Obstetrics and Gynecology, Dar-Ul-Sehat Hospital, Karachi, PAK
| | - Shizra Shahnawaz
- Obstetrics and Gynecology, Jinnah Postgraduate Medical Center, Karachi, PAK
| | - Adnan Anwar
- Physiology, Al-Tibri Medical College, Karachi, PAK.,Stereotactic Radiosurgery/Radiation Oncology, Al-Tibri Medical College, Karachi, PAK
| | - Atif A Hashmi
- Pathology, Liaquat National Hospital and Medical College, Karachi, PAK
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Gurung A, Wrammert J, Sunny AK, Gurung R, Rana N, Basaula YN, Paudel P, Pokhrel A, Kc A. Incidence, risk factors and consequences of preterm birth - findings from a multi-centric observational study for 14 months in Nepal. ACTA ACUST UNITED AC 2020; 78:64. [PMID: 32695337 PMCID: PMC7368758 DOI: 10.1186/s13690-020-00446-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 07/03/2020] [Indexed: 01/02/2023]
Abstract
Background Preterm birth is a worldwide epidemic and a leading cause of neonatal mortality. In this study, we aimed to evaluate the incidence, risk factors and consequences of preterm birth in Nepal. Methods This was an observational study conducted in 12 public hospitals of Nepal. All the babies born during the study period were included in the study. Babies born < 37 weeks of gestation were classified as preterm births. For the association and outcomes for preterm birth, univariate followed by multiple regression analysis was conducted. Results The incidence of preterm was found to be 93 per 1000 live births. Mothers aged less than 20 years (aOR 1.26;1.15–1.39) had a high risk for preterm birth. Similarly, education of the mother was a significant predictor for preterm birth: illiterate mothers (aOR 1.41; 1.22–1.64), literate mothers (aOR 1.21; 1.08–1.35) and mothers having basic level of education (aOR 1.17; 1.07–1.27). Socio-demographic factors such as smoking (aOR 1.13; 1.01–1.26), use of polluted fuel (aOR 1.26; 1.17–1.35) and sex of baby (aOR 1.18; 1.11–1.26); obstetric factors such as nulliparity (aOR 1.33; 1.20–1.48), multiple delivery (aOR 6.63; 5.16–8.52), severe anemia during pregnancy (aOR 3.27; 2.21–4.84), antenatal visit during second trimester (aOR 1.13; 1.05–1.22) and third trimester (aOR 1.24; 1.12–1.38), < 4 antenatal visits during pregnancy (aOR 1.49; 1.38–1.61) were found to be significant risk factors of preterm birth. Preterm has a risk for pre-discharge mortality (10.60; 9.28–12.10). Conclusion In this study, we found high incidence of preterm birth. Various socio-demographic, obstetric and neonatal risk factors were associated with preterm birth. Risk factor modifications and timely interventions will help in the reduction of preterm births and associated mortalities. Trial registration ISRCTN30829654.
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Affiliation(s)
| | - Johan Wrammert
- Department of Women's and Children's Health, Uppsala University, 75237 Uppsala, Sweden
| | | | | | - Netra Rana
- Lumbini Provincial Hospital, Government of Nepal, Butwal, Nepal
| | | | - Prajwal Paudel
- Ministry of Health and Population, Government of Nepal, Kathmandu, Nepal
| | - Amrit Pokhrel
- Syangya District Hospital, Government of Nepal, Syangya, Nepal
| | - Ashish Kc
- Department of Women's and Children's Health, Uppsala University, 75237 Uppsala, Sweden
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Preconception Hb concentration with risk of spontaneous abortion: a population-based cohort study in over 3·9 million women across rural China. Public Health Nutr 2020; 23:2963-2972. [PMID: 32131921 DOI: 10.1017/s1368980019003811] [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] [Indexed: 01/22/2023]
Abstract
OBJECTIVE Evidence on the relationship between maternal Hb concentration and spontaneous abortion (SA) risk is limited and conflicting. The purpose of the study was to evaluate whether maternal preconception anaemia or high Hb concentration is associated with risk of SA. DESIGN A population-based cohort study established between 2013 and 2017. SETTINGS Local maternal and child care service centres in each county. PARTICIPANTS In total, 3 971 428 women aged 20-49 years, who participated in National Free Pre-Pregnancy Checkups Project from 2013 to 2016 and successfully got pregnant before 2017 in rural China. RESULTS A total of 101 700 (2·56 %) women were recorded having SA, with highest SA rate in women with severe anaemia (4·58 %). Compared with women with Hb of 110-149 g/l, the multivariable-adjusted OR for SA was 1·52 (95 % CI: 1·25, 1·86) for women with Hb < 70 g/l, 0·92 (0·84, 1·01) for 70-99 g/l, 0·80 (0·77, 0·83) for 100-109 g/l, 1·11 (1·08, 1·15) for 150-159 g/l, 1·12 (1·04, 1·20) for 160-169 g/l and 1·02 (0·93, 1·12) for ≥ 170 g/l, respectively. An approximate U-shaped curve for the risk of SA with Hb concentrations was observed when Hb concentrations less than 145 g/l, above which the association plateaued (Pnon-linear < 0·001). CONCLUSIONS Severe anaemia and high Hb concentration before pregnancy were associated with an increased risk of SA. Women with mild anaemia prior to pregnancy had lower risk of SA. Underlying mechanisms need to be further studied.
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Factors Associated with Preterm Birth and Low Birth Weight in Abu Dhabi, the United Arab Emirates. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17041382. [PMID: 32098043 PMCID: PMC7068537 DOI: 10.3390/ijerph17041382] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 02/19/2020] [Accepted: 02/19/2020] [Indexed: 11/21/2022]
Abstract
Both preterm birth and low birth weight (LBW) represent major public health problems worldwide due to their association with the catastrophic effects of morbidity and mortality. Few data exist about such adverse pregnancy outcomes. The current study aimed to investigate the prevalence of and factors associated with preterm birth and LBW among mothers of children under two years in Abu Dhabi, United Arab Emirates. Data were collected in clinical and non-clinical settings across various geographical areas in Abu Dhabi. The data were analyzed using both descriptive and inferential statistics. A total of 1610 mother–child pairs were included in the current study. Preterm birth rate was 102 (6.3%) with a 95% confidence interval [CI] (6.1%, 6.5%) and the LBW rate was 151 (9.4%) with a 95% CI (9.3%, 9.5%). The mean (SD) of gestational age (GA) and birth weight at delivery was 39.1 (1.9) weeks and 3080.3 (518.6) grams, respectively. Factors that were positively associated with preterm birth were Arab mothers, maternal education level below secondary, caesarean section, and LBW. LBW was associated with female children, caesarean section (CS), first child order, and preterm birth. The current study highlighted the need for further interventional research to tackle these public health issues such as reducing the high CS rate and improving maternal education.
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Antony KM, Kazembe PN, Pace RM, Levison J, Phiri H, Chiudzu G, Harris RA, Chirwa R, Nyondo M, Marko E, Chigayo A, Nanthuru D, Banda B, Twyman N, Ramin SM, Raine SP, Belfort MA, Aagaard KM. Population-Based Estimation of the Preterm Birth Rate in Lilongwe, Malawi: Making Every Birth Count. AJP Rep 2020; 10:e78-e86. [PMID: 32158618 PMCID: PMC7062552 DOI: 10.1055/s-0040-1708491] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 01/24/2020] [Indexed: 01/13/2023] Open
Abstract
Objective The objective of this study was to perform a population-based estimation of the preterm birth (PTB) rate in regions surrounding Lilongwe, Malawi. Study Design We partnered with obstetrician specialists, community health workers, local midwives, and clinicians in a 50 km region surrounding Lilongwe, Malawi, to perform a population-based estimation of the PTB rate during the study period from December 1, 2012 to May 19, 2015. Results Of the 14,792 births captured, 19.3% of births were preterm, including preterm early neonatal deaths. Additional PTB risk factors were similarly prevalent including domestic violence, HIV, malaria, anemia, and malnutrition. Conclusion When performing a population-based estimation of the rate of PTB, including women without antenatal care and women delivering at home, the 19.3% rate of PTB is among the highest recorded globally. This is accompanied by a high rate of risk factors and comorbid conditions.
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Affiliation(s)
- Kathleen M Antony
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas.,Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas.,Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of Wisconsin-Madison, Madison, Wisconsin
| | - Peter N Kazembe
- Department of Pediatrics, Baylor College of Medicine Children's Clinical Center of Excellence, Kamuzu Central Hospital, Lilongwe, Malawi
| | - Ryan M Pace
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas.,Department of Immunology, University of Idaho, Moscow, Idaho
| | - Judy Levison
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas
| | - Henry Phiri
- Department of Obstetrics and Gynecology, Kamuzu Central Hospital, Lilongwe, Malawi
| | - Grace Chiudzu
- Department of Obstetrics and Gynecology, Kamuzu Central Hospital, Lilongwe, Malawi
| | - Ronald Alan Harris
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas
| | - Rose Chirwa
- Department of Pediatrics, Baylor College of Medicine Children's Clinical Center of Excellence, Kamuzu Central Hospital, Lilongwe, Malawi
| | - Mary Nyondo
- Department of Pediatrics, Baylor College of Medicine Children's Clinical Center of Excellence, Kamuzu Central Hospital, Lilongwe, Malawi
| | - Ellina Marko
- Department of Pediatrics, Baylor College of Medicine Children's Clinical Center of Excellence, Kamuzu Central Hospital, Lilongwe, Malawi
| | - Andrew Chigayo
- Department of Pediatrics, Baylor College of Medicine Children's Clinical Center of Excellence, Kamuzu Central Hospital, Lilongwe, Malawi
| | - Debora Nanthuru
- Department of Pediatrics, Baylor College of Medicine Children's Clinical Center of Excellence, Kamuzu Central Hospital, Lilongwe, Malawi
| | - Bertha Banda
- Department of Pediatrics, Baylor College of Medicine Children's Clinical Center of Excellence, Kamuzu Central Hospital, Lilongwe, Malawi
| | - Nicholas Twyman
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas
| | - Susan M Ramin
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas.,Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas
| | - Susan P Raine
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas
| | - Michael A Belfort
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas.,Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas
| | - Kjersti M Aagaard
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas.,Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas
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Berger R, Rath W, Abele H, Garnier Y, Kuon RJ, Maul H. Reducing the Risk of Preterm Birth by Ambulatory Risk Factor Management. DEUTSCHES ARZTEBLATT INTERNATIONAL 2019; 116:858-864. [PMID: 31931955 PMCID: PMC6970314 DOI: 10.3238/arztebl.2019.0858] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 06/05/2019] [Accepted: 09/23/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND The preterm birth rate in Germany has remained unchanged at 8-9% since 2009. Preterm birth is the most common cause of neonatal morbidity and mortality. In the absence of a causal treatment, it is important to lower the risk of preterm birth by preventive measures in prenatal outpatient care. METHODS This review is based on pertinent publications from the years 2000-2019 that were retrieved by a selective search in PubMed. RESULTS The clinical risk factors for preterm birth-known mainly from retrospective cohort studies-include previous preterm birth (adjusted odds ratio [aOR]: 3.6), multiple pregnancy (relative risk [RR]: 7.7), nicotine consumption (aOR: 1.7), and a short uterine cervix, i.e., <25 mm in the second trimester (aOR: 6.9). In women with a short cervix, vaginally administered progesterone significantly lowers the preterm birth rate (22.5% vs. 14.1% for birth before 33 weeks of gestation, RR: 0.62; 95% confidence interval [0.47; 0.81]). Nicotine abstinence is associated with a lower pre- term birth rate as well (aOR: 0.91; [0.88; 0,.94]), while working more than 40 hours per week (aOR: 1.25; [1,.01; 1,.54]) and heavy lifting during pregnancy (hazard ratio [HR]: 1.43; [1.13; 1.80]) are associated with a higher preterm birth rate. Avoidance of physical exertion, or bed rest, in the face of impending preterm birth does not lower the preterm birth rate, but it does increase the risk of complications, such as thromboembolism. CONCLUSION The meticulous assessment and elimination of treatable risk factors at the outset of ambulatory prenatal care can help lower the preterm birth rate. Further velopment of causally directed treat- ments (e.g., changes of relevant environmental and epigenetic factors).
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Affiliation(s)
- Richard Berger
- Marienhaus Klinikum St. Elisabeth, Department of Gynecology and Obstetrics, Neuwied
| | - Werner Rath
- University Medical Center Schleswig-Holstein, Campus Kiel
| | - Harald Abele
- Tübingen University Hospital, Center for Women’s Health, Tübingen
| | - Yves Garnier
- Klinikum Osnabrück GmbH, Department of Gynecology and Obstetrics, Osnabrück
| | - Ruben-J. Kuon
- Heidelberg University Hospital, Department of Gynecology and Obstetrics, Heidelberg
| | - Holger Maul
- Asklepios Kliniken Barmbek, Wandsbek und Nord-Heidberg, Department of Gynecology and Obstetrics, Hamburg
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20
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Hayes S. Blood Support for Fertility, Pregnancy, and Postpartum Using Acupuncture from Ancient Medical Texts' Theory. Med Acupunct 2019; 31:339-345. [PMID: 31871521 DOI: 10.1089/acu.2019.1387] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Conventional medicine suggests that adequate maternal blood is essential for a woman to become pregnant, maintain a healthy pregnancy to term, and recover postpartum. Adequate blood is recognized for successful embryo attachment and to provide fetal nourishment to support the fetus' continued growth and development. It is common for women desiring pregnancy to take folic acid and sometimes iron to support their blood. Energetic medicine, particularly phytotherapy, offers many therapeutic options to treat the blood, particularly in reproductive medicine. Acupuncture, however, is not as commonly considered on its own for building, preserving, and protecting the Blood, although this modality may be more utilized for treating Blood Stasis and pain conditions such as endometriosis. A synthesis of the ancient medical texts written 4000 bc to 1619 ad-as taught by Tran Viet Dzung, MD, and Nguyen Van Nghi, MD, scholars of the ancient medical texts-offers many clinically relevant acupuncture therapies to consider when treating the Blood to support fertility, pregnancy, and postpartum. This article offers advanced acupuncture techniques clinically used to build, preserve, and protect the Blood-derived from a synthesis of basic Energetic concepts mentioned throughout the ancient medical texts-that can be applied in clinics and research in reproductive medicine today. Acupuncture points with reasons for using them are reviewed with examples in application and treatment to support the infertile, pregnant, and postpartum patient. The acupuncture treatment methods offered in this article have been used throughout the world by medical acupuncturists trained by Drs. Viet Dzung and Van Nghi with positive clinical results. Further clinical observation and research is warranted to evaluate the full potential for acupuncture to build and preserve the Blood, an essential component for creating life in preparing for, preserving, and recovering from pregnancy.
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21
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Kumari S, Garg N, Kumar A, Guru PKI, Ansari S, Anwar S, Singh KP, Kumari P, Mishra PK, Gupta BK, Nehar S, Sharma AK, Raziuddin M, Sohail M. Maternal and severe anaemia in delivering women is associated with risk of preterm and low birth weight: A cross sectional study from Jharkhand, India. One Health 2019; 8:100098. [PMID: 31485474 PMCID: PMC6715890 DOI: 10.1016/j.onehlt.2019.100098] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 07/23/2019] [Accepted: 07/23/2019] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Haemoglobin content is the well accepted indicator for anaemia assessment. The high prevalence of anaemia, maternal health care issues and adverse delivery outcome in Jharkhand, we investigated whether delivering women with anaemia would present a modifiable risk of preterm (PTB) and low birth weight (LBW). METHODS A facility-based cross-sectional study involving pregnant women, with screening for pregnancy endpoints and haemoglobin assay, were conducted. Anaemia was classified according to World Health Organization's definition of anaemia in pregnancy. Confounding variables were adjusted in a logistic model. The adjusted odds ratios (AORs) with 95% confidence intervals (CIs) were used for analyzing the association among maternal anaemia, PTB and LBW. RESULTS We observed a high prevalence of anaemia (78.45%) in delivering women, whereas high prevalence of preterm birth (34.75%) and LBW (32.81%) in delivering women overall. In the adjusted analysis, overall anaemia in pregnancy was strongly associated with preterm birth (OR, 3.42; 95% CI, 1.98-5.88; P ≤ .0001) as compared to LBW (OR, 1.12; 95% CI, 0.65-1.61; P = .0003). The risk of PTB and LBW were dependent on the stratification of the anaemia group, as the strongest association was observed in severe (OR, 4.86) followed by mild (OR, 3.66) and moderate (OR, 3.18) anaemia in PTB; whereas risk of LBW was found in severe (OR, 2.5) followed by moderate (OR, 1.11) and mild (OR, 0.57) anaemia. The risk of PTB and LBW across six pregnancy haemoglobin groups were compared, haemoglobin of 10-10.9 g/dl (OR, 1.25) and ≤ 8 g/dl (OR, 1.03) have shown association with PTB and LBW, respectively. However, high haemoglobin concentration was not associated with either PTB or LBW. CONCLUSIONS Anaemia in delivering women was associated with an elevated risk of PTB and LBW and the risk increased with the severity of anaemia in pregnant women.
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Affiliation(s)
- Shweta Kumari
- Research Laboratory, University Department of Zoology, Vinoba Bhave University, Hazaribag, Jharkhand, India
| | - Neelima Garg
- Centre for Tribal Health and Biotechnology Foundation, New Delhi, India
| | - Amod Kumar
- Research Laboratory, University Department of Zoology, Vinoba Bhave University, Hazaribag, Jharkhand, India
| | - Pawas Kumar Indra Guru
- Research Laboratory, University Department of Zoology, Vinoba Bhave University, Hazaribag, Jharkhand, India
| | - Sharafat Ansari
- Research Laboratory, University Department of Zoology, Vinoba Bhave University, Hazaribag, Jharkhand, India
| | - Shadab Anwar
- SLS, Jawaharlal Nehru University, New-Delhi, India
- Centre for Tribal Health and Biotechnology Foundation, New Delhi, India
| | - Krishn Pratap Singh
- Research Laboratory, University Department of Zoology, Vinoba Bhave University, Hazaribag, Jharkhand, India
- Centre for Tribal Health and Biotechnology Foundation, New Delhi, India
| | - Priti Kumari
- Research Laboratory, University Department of Zoology, Vinoba Bhave University, Hazaribag, Jharkhand, India
- Centre for Tribal Health and Biotechnology Foundation, New Delhi, India
| | - Prashant Kumar Mishra
- University Department of Biotechnology, Vinoba Bhave University, Hazaribag, Jharkhand, India
| | - Birendra Kumar Gupta
- Research Laboratory, University Department of Zoology, Vinoba Bhave University, Hazaribag, Jharkhand, India
| | - Shamshun Nehar
- Department of Zoology, Ranchi University, Ranchi, Jharkhand, India
| | - Ajay Kumar Sharma
- Research Laboratory, University Department of Zoology, Vinoba Bhave University, Hazaribag, Jharkhand, India
| | - Mohammad Raziuddin
- Research Laboratory, University Department of Zoology, Vinoba Bhave University, Hazaribag, Jharkhand, India
| | - Mohammad Sohail
- Research Laboratory, University Department of Zoology, Vinoba Bhave University, Hazaribag, Jharkhand, India
- Centre for Tribal Health and Biotechnology Foundation, New Delhi, India
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22
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Asadi N, Vafaei H, Kasraeian M, Yoosefi S, Faraji A, Abbasi L. Effects of prophylactic iron supplementation on outcome of nonanemic pregnant women: A non-randomized clinical trial. J Chin Med Assoc 2019; 82:840-844. [PMID: 31517773 DOI: 10.1097/jcma.0000000000000184] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND The aim of the current study was to investigate the effects of prophylactic iron supplementation on the pregnancy outcome of nonanemic pregnant women in a sample of Iranian population. METHODS This non-randomized clinical trial was conducted during a 2-year period in obstetrics clinics of Shiraz, southern Iran. We included a sample of singleton pregnancies registered in our clinics. Those with comorbidities were excluded. Serum ferritin was measured at baseline and participants were classified accordingly: those with normal serum ferritin levels (≥30 µg/dL) who received standard prophylactic iron supplementation during the pregnancy (Group 1); those who had minor thalassemia and elevated serum ferritin levels (≥30 µg/dL) who did not receive prophylactic iron supplementation or those with normal ferritin levels (≥30 µg/dL) who refused to receive iron supplementation due to gastrointestinal upset (Group 2); and those with iron deficiency anemia with low serum ferritin levels (<30 µg/dL) who received standard iron supplementation during pregnancy (Group 3). All the participants were followed to the delivery and maternal and neonatal outcomes were recorded and compared between three study groups. RESULTS Overall we included 30 pregnant women in each group with mean age of the participants was 28.66 ± 6.02 years. There was no significant difference between three study groups regarding gestational age at delivery (p = 0.250), birthweight (p = 0.893), Apgar at 1 (p = 0.532) and 5 (p = 0.590) minutes, and route of delivery (p = 0.590). The overall rate of maternal complication of the pregnancy was comparable between the three study groups (p = 0.188). However, those in group 1, had significantly higher rate of gestational diabetes mellitus (GDM) when compared to other two groups (p = 0.038). CONCLUSION Prophylactic iron supplementation in pregnant women with normal ferritin levels is associated with increased risk of GDM. Other pregnancy and neonatal outcomes are not affected by the prophylactic iron supplementation.
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Affiliation(s)
- Nasrin Asadi
- Maternal-Fetal Medicine Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Homeira Vafaei
- Maternal-Fetal Medicine Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Maryam Kasraeian
- Maternal-Fetal Medicine Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sedigeh Yoosefi
- Perinatology Division, Maternal-Fetal Medicine Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Azam Faraji
- Perinatology Division, Maternal-Fetal Medicine Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Lilia Abbasi
- Department of Obstetrics and Gynecology, Shiraz University of Medical Sciences, Shiraz, Iran
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23
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Berger R, Abele H, Bahlmann F, Bedei I, Doubek K, Felderhoff-Müser U, Fluhr H, Garnier Y, Grylka-Baeschlin S, Helmer H, Herting E, Hoopmann M, Hösli I, Hoyme U, Jendreizeck A, Krentel H, Kuon R, Lütje W, Mader S, Maul H, Mendling W, Mitschdörfer B, Nicin T, Nothacker M, Olbertz D, Rath W, Roll C, Schlembach D, Schleußner E, Schütz F, Seifert-Klauss V, Steppat S, Surbek D. Prevention and Therapy of Preterm Birth. Guideline of the DGGG, OEGGG and SGGG (S2k Level, AWMF Registry Number 015/025, February 2019) - Part 1 with Recommendations on the Epidemiology, Etiology, Prediction, Primary and Secondary Prevention of Preterm Birth. Geburtshilfe Frauenheilkd 2019; 79:800-812. [PMID: 31423016 DOI: 10.1055/a-0903-2671] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 04/30/2019] [Indexed: 12/13/2022] Open
Abstract
Aims This is an official guideline of the German Society for Gynecology and Obstetrics (DGGG), the Austrian Society for Gynecology and Obstetrics (ÖGGG) and the Swiss Society for Gynecology and Obstetrics (SGGG). The aim of this guideline is to improve the prediction, prevention and management of preterm birth based on evidence obtained from recent scientific literature, the experience of the members of the guideline commission and the views of self-help groups. Methods Based on the international literature, the members of the participating medical societies and organizations developed Recommendations and Statements. These were adopted following a formal process (structured consensus conference with neutral moderation, voting was done in writing using the Delphi method to achieve consensus). Recommendations Part I of this short version of the guideline lists Statements and Recommendations on the epidemiology, etiology, prediction and primary and secondary prevention of preterm birth.
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Affiliation(s)
- Richard Berger
- Frauenklinik, Marienhaus Klinikum Neuwied, Neuwied, Germany
| | - Harald Abele
- Frauenklinik, Universitätsklinikum Tübingen, Tübingen, Germany
| | - Franz Bahlmann
- Frauenklinik, Bürgerhospital Frankfurt, Frankfurt am Main, Germany
| | - Ivonne Bedei
- Frauenklinik, Klinikum Frankfurt Höchst, Frankfurt am Main, Germany
| | | | - Ursula Felderhoff-Müser
- Klinik für Kinderheilkunde I/Perinatalzentrum, Universitätsklinikum Essen, Universität Duisburg-Essen, Essen, Germany
| | - Herbert Fluhr
- Frauenklinik, Universitätsklinikum Heidelberg, Heidelberg, Germany
| | - Yves Garnier
- Frauenklinik, Klinikum Osnabrück, Osnabrück, Germany
| | | | - Hanns Helmer
- Universitätsklinik für Frauenheilkunde, Medizinische Universität Wien, Wien, Austria
| | - Egbert Herting
- Klinik für Kinder- und Jugendmedizin, Universitätsklinikum Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Markus Hoopmann
- Frauenklinik, Universitätsklinikum Tübingen, Tübingen, Germany
| | - Irene Hösli
- Frauenklinik, Universitätsspital Basel, Basel, Switzerland
| | - Udo Hoyme
- Frauenklinik, Ilm-Kreis-Kliniken, Arnstadt, Germany
| | | | - Harald Krentel
- Frauenklinik, Annahospital Herne, Elisabethgruppe Katholische Kliniken Rhein Ruhr, Herne, Germany
| | - Ruben Kuon
- Frauenklinik, Universitätsklinikum Heidelberg, Heidelberg, Germany
| | - Wolf Lütje
- Frauenklinik, Evangelisches Amalie Sieveking-Krankenhaus Hamburg, Hamburg, Germany
| | - Silke Mader
- European Foundation for the Care of the Newborn Infant
| | - Holger Maul
- Frauenklinik, Asklepios Kliniken Hamburg, Hamburg, Germany
| | - Werner Mendling
- Deutsches Zentrum für Infektionen in Gynäkologie und Geburtshilfe an der Frauenklinik, Helios Universitätsklinikum Wuppertal, Wuppertal, Germany
| | | | | | - Monika Nothacker
- Arbeitsgemeinschaft der Wissenschaftlichen Medizinischen Fachgesellschaften, Berlin, Germany
| | - Dirk Olbertz
- Abteilung Neonatologie und neonatologische Intensivmedizin, Klinikum Südstadt Rostock, Rostock, Germany
| | - Werner Rath
- Emeritus, Universitätsklinikum Aachen, Aachen, Germany
| | - Claudia Roll
- Vestische Kinder- und Jugendklinik Datteln, Universität Witten/Herdecke, Datteln, Germany
| | - Dietmar Schlembach
- Klinik für Geburtsmedizin, Klinikum Neukölln/Berlin Vivantes Netzwerk für Gesundheit, Berlin, Germany
| | | | - Florian Schütz
- Frauenklinik, Universitätsklinikum Heidelberg, Heidelberg, Germany
| | | | | | - Daniel Surbek
- Universitäts-Frauenklinik, Inselspital, Universität Bern, Bern, Switzerland
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Jung J, Rahman MM, Rahman MS, Swe KT, Islam MR, Rahman MO, Akter S. Effects of hemoglobin levels during pregnancy on adverse maternal and infant outcomes: a systematic review and meta‐analysis. Ann N Y Acad Sci 2019; 1450:69-82. [DOI: 10.1111/nyas.14112] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 03/07/2019] [Accepted: 04/05/2019] [Indexed: 01/30/2023]
Affiliation(s)
- Jenny Jung
- Department of Global Health Policy, School of International Healththe University of Tokyo Tokyo Japan
- Global Public Health Research Foundation Dhaka Bangladesh
| | - Md. Mizanur Rahman
- Department of Global Health Policy, School of International Healththe University of Tokyo Tokyo Japan
- Global Public Health Research Foundation Dhaka Bangladesh
| | - Md. Shafiur Rahman
- Department of Global Health Policy, School of International Healththe University of Tokyo Tokyo Japan
- Global Public Health Research Foundation Dhaka Bangladesh
| | - Khin Thet Swe
- Department of Global Health Policy, School of International Healththe University of Tokyo Tokyo Japan
| | - Md. Rashedul Islam
- Department of Global Health Policy, School of International Healththe University of Tokyo Tokyo Japan
- Global Public Health Research Foundation Dhaka Bangladesh
| | | | - Shamima Akter
- Global Public Health Research Foundation Dhaka Bangladesh
- Department of Epidemiology and Prevention, Center for Clinical SciencesNational Center for Global Health and Medicine Tokyo Japan
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25
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Yefet E, Suleiman A, Garmi G, Hatokay A, Nachum Z. Evaluation of postpartum anaemia screening to improve anaemia diagnosis and patient care: A prospective non-randomized before-and-after anaemia screening protocol implementation study. Sci Rep 2019; 9:7810. [PMID: 31127175 PMCID: PMC6534672 DOI: 10.1038/s41598-019-44334-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 04/04/2019] [Indexed: 11/09/2022] Open
Abstract
We assessed the efficacy of a screening protocol for postpartum anaemia diagnosis and treatment in the maternity ward. A prospective non-randomized before-and-after anaemia screening protocol implementation study during two consecutive periods was conducted. Women who were scheduled for vaginal birth were tested for haemoglobin (Hb) before delivery. During the first period (June 29-October 10, 2015; N = 803) Hb was measured postpartum for women with anaemia-related symptoms, postpartum haemorrhage, or pre-delivery severe anaemia (Hb < 8 g/dL; "symptoms" group). During the second period (October 11, 2015-January 27, 2016; N = 755) Hb was also measured in all women with pre-delivery anaemia [i.e., Hb < 10.5 g/dL] ("screening" group). The primary outcomes were the rates of women with (1) postpartum anaemia diagnosis (Hb < 10 g/dL) and (2) administration of parenteral iron sucrose (indicated for postpartum Hb ≤ 9.5 g/dL). The detection rate of postpartum anaemia was higher in the screening group compared with the symptoms group (140 (19%) versus 100 (12%), ORadjusted 2.2 95%CI [1.6-3.0], respectively). The iron sucrose treatment rate was also higher (110 (15%) versus 88 (11%), ORadjusted 2.0 95%CI [1.4-2.7], respectively). A total of 122 women were diagnosed with moderate-severe anaemia in the screening group, 27 of whom (22%) were diagnosed solely due to the screening protocol. The results demonstrated that a routine screening of women with predelivery anaemia for postpartum anaemia led to increased anaemia diagnosis and consequently better medical care.
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Affiliation(s)
- Enav Yefet
- Department of Obstetrics and Gynecology, Emek Medical Center, Afula, Israel.
| | - Abeer Suleiman
- Department of Obstetrics and Gynecology, Emek Medical Center, Afula, Israel
| | - Gali Garmi
- Department of Obstetrics and Gynecology, Emek Medical Center, Afula, Israel.,Rappaport Faculty of Medicine, Technion, Haifa, Israel
| | - Aliza Hatokay
- Department of Obstetrics and Gynecology, Emek Medical Center, Afula, Israel
| | - Zohar Nachum
- Department of Obstetrics and Gynecology, Emek Medical Center, Afula, Israel.,Rappaport Faculty of Medicine, Technion, Haifa, Israel
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26
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Young MF, Oaks BM, Tandon S, Martorell R, Dewey KG, Wendt AS. Maternal hemoglobin concentrations across pregnancy and maternal and child health: a systematic review and meta-analysis. Ann N Y Acad Sci 2019; 1450:47-68. [PMID: 30994929 PMCID: PMC6767572 DOI: 10.1111/nyas.14093] [Citation(s) in RCA: 117] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 03/05/2019] [Accepted: 03/19/2019] [Indexed: 12/14/2022]
Abstract
Maternal anemia is a well‐recognized global health problem; however, there remain questions on specific hemoglobin (Hb) thresholds that predict health risk or protection for mother and child. We conducted a systematic review and meta‐analysis to examine the associations of maternal Hb concentrations with a range of maternal and infant health outcomes, accounting for the timing of measurement (preconception, and first, second, and third trimesters), etiology of anemia, and cutoff category. The systematic review included 272 studies and the meta‐analysis included 95 studies. Low maternal Hb (<110 g/L) was associated with poor birth outcomes (low birth weight, preterm birth, small‐for‐gestational‐age (SGA), stillbirth, and perinatal and neonatal mortality) and adverse maternal outcomes (postpartum hemorrhage, preeclampsia, and blood transfusion). High maternal Hb (>130 g/L) was associated with increased odds of SGA, stillbirth, preeclampsia, and gestational diabetes. Relationships varied by the timing of measurement and cutoff category (stronger associations with lower cutoffs); limited data were available on anemia etiology. There were insufficient data for other maternal outcomes and long‐term child health outcomes. Current data are insufficient for determining if revisions to current Hb cutoffs are required. Pooled high‐quality individual‐level data analyses, as well as prospective cohort studies, would be valuable to inform the reevaluation of Hb cutoffs.
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Affiliation(s)
- Melissa F Young
- Hubert Department of Global Health, Emory University, Atlanta, Georgia
| | - Brietta M Oaks
- Department of Nutrition and Food Sciences, University of Rhode Island, Kingston, Rhode Island
| | - Sonia Tandon
- Hubert Department of Global Health, Emory University, Atlanta, Georgia
| | | | - Kathryn G Dewey
- Department of Nutrition, University of California, Davis, Davis, California
| | - Amanda S Wendt
- Heidelberg Institute of Global Health, University of Heidelberg, Heidelberg, Germany
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Dinçgez Çakmak B, Türker ÜA, Öztaş S, Arık M, Üstünyurt E. The effect of first trimester hemoglobin levels on pregnancy outcomes. Turk J Obstet Gynecol 2018; 15:165-170. [PMID: 30202626 PMCID: PMC6127473 DOI: 10.4274/tjod.87269] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 06/13/2018] [Indexed: 12/01/2022] Open
Abstract
Objective The relationship between hemoglobin levels and pregnancy outcomes is still a challenging issue. There is a supported opinion about the increased adverse pregnancy outcomes both with low and high hemoglobin levels. In this study, we aimed to evaluate this association for first trimester hemoglobin levels in a Turkish population. Materials and Methods In this retrospective study, 1306 women who were followed up during their pregnancy and gave birth in our clinic were enrolled. The patients were divided into three groups: hemoglobin <11 g/dL (n=490), 11≤ hemoglobin <13 g/dL (n=673), and hemoglobin ≥13 g/dL (n=143). The hemoglobin <11 g/dL group was classified into two subgroups as hemoglobin ≤9 g/dL (n=64) and hemoglobin >9 g/dL (n=426). Demographic characteristics, first trimester hemoglobin levels, gestational age at delivery and mode, birth weight, Apgar scores, and pregnancy outcomes were recorded and compared between the groups. Results Pregnancy-induced hypertension, preterm birth, neonatal intensive care unit admission, birth weight, gestational age at delivery, Apgar scores, and postpartum hemorrhage were significantly different between the three groups. In the pairwise comparison, gestational age at delivery, birth weight, and first minute Apgar scores were higher in the 11≤ hemoglobin <13 g/dL group, and pregnancy-induced hypertension was more common in the hemoglobin ≥13 g/dL group as compared with the others. Moreover, the preterm delivery rate was highest in the hemoglobin ≥13 g/dL (26.6%) group and lowest (7.3%) in the 11≤ hemoglobin <13 g/dL group. The neonatal intensive care unit admission rate was higher both the hemoglobin <11 g/dL and hemoglobin ≥13 g/dL groups. Postpartum hemorrhage was more common in the hemoglobin <11 g/dL group as compared with the other groups. Furthermore, pregnancy-induced hypertension was more common in the hemoglobin ≤9 g/dL subgroup (p=0.012). Conclusion In conclusion, both low and high hemoglobin levels are related with adverse pregnancy outcomes. We suggest that hemoglobin levels must be screened during pregnancy to provide maternal and fetal well-being.
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Affiliation(s)
- Burcu Dinçgez Çakmak
- University of Health Sciences, Bursa Yüksek İhtisas Training and Research Hospital, Clinic of Obstetrics and Gynecology, Bursa, Turkey
| | - Ülkü Ayşe Türker
- University of Health Sciences, Bursa Yüksek İhtisas Training and Research Hospital, Clinic of Obstetrics and Gynecology, Bursa, Turkey
| | - Sonay Öztaş
- University of Health Sciences, Bursa Yüksek İhtisas Training and Research Hospital, Clinic of Obstetrics and Gynecology, Bursa, Turkey
| | - Melis Arık
- University of Health Sciences, Bursa Yüksek İhtisas Training and Research Hospital, Clinic of Obstetrics and Gynecology, Bursa, Turkey
| | - Emin Üstünyurt
- University of Health Sciences, Bursa Yüksek İhtisas Training and Research Hospital, Clinic of Obstetrics and Gynecology, Bursa, Turkey
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Preconception Hb concentration and risk of preterm birth in over 2·7 million Chinese women aged 20-49 years: a population-based cohort study. Br J Nutr 2018; 120:508-516. [PMID: 29986785 DOI: 10.1017/s0007114518001721] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Evidence on the association between maternal Hb concentration and preterm birth (PTB) risk is inconclusive. This paper aimed to explore whether women with anaemia or high Hb level before pregnancy would be at higher risk of PTB. We conducted a population-based cohort study with 2 722 274 women aged 20-49 years, who participated in National Free Pre-Pregnancy Checkups Project between 2013 and 2015 and delivered a singleton before 2016 in rural China. Logistic models were used to estimate OR and 95 % CI after adjusting for confounding variables. Restricted cubic spline models were applied to evaluate the dose-response relationships. A total of 192 819 (7·08 %) women had preterm deliveries. Compared with women with Hb of 110-149 g/l, the multivariable-adjusted OR for PTB was 1·19 (95 % CI 0·98, 1·44) for women with Hb<70 g/l, 1·01 (95 % CI 0·97, 1·03) for 70-99 g/l, 0·96 (95 % CI 0·95, 0·98) for 100-109 g/l, 1·04 (95 % CI 1·01, 1·06) for 150-159 g/l, 1·11 (95 % CI 1·05, 1·17) for 160-169 g/l and 1·19 (95 % CI 1·11, 1·27) for ≥170 g/l, respectively. The multivariable-adjusted OR for very PTB (VPTB) was 1·07 (95 % CI 1·03, 1·12) and 1·06 (95 % CI 1·01, 1·12) for women with Hb <110 and ≥150 g/l, compared with those with Hb of 110-149 g/l, respectively. Our study identified a U-shaped relationship between maternal preconception Hb concentration and PTB risk. Both preconception anaemia and high Hb level can significantly increase VPTB risk. Appropriate intervention for women with abnormal Hb levels before pregnancy is very necessary.
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Increase serum cortisol in young guinea pig offspring in response to maternal iron deficiency. Nutr Res 2018; 54:69-79. [PMID: 29914669 DOI: 10.1016/j.nutres.2018.03.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 03/20/2018] [Accepted: 03/30/2018] [Indexed: 11/23/2022]
Abstract
Iron deficiency (ID) has been reported as a risk factor in the pathology of attention-deficit/hyperactivity disorder, although the mechanisms seem unclear. Previous results from our research group showed that guinea pig offspring born from ID dams were significantly more active in the Open Field Test than the controls. This behavior could potentially be associated to stress. We therefore hypothesized that maternal iron deficiency (MID) elevates the offspring serum cortisol, a biomarker of stress, during childhood and possibly at mature age. Twenty-four female guinea pigs were fed an iron-sufficient (IS) diet (114 mg/kg) or ID diet (11.7 mg/kg) during the gestation and lactation. Pups in both groups were weaned at postnatal day (PNd) 9 and given an IS diet. Hematocrit and serum cortisol levels were measured in dams at every trimester of gestation and in pups at PNd24 and 84. We found no impact of MID on dam's cortisol values. However, our findings indicate that MID increased cortisol secretion in the offspring during childhood, cortisol values being significantly elevated in ID than IS pups at PNd24 (P < .05). During adulthood (PNd84), both groups showed comparable cortisol levels. The elevated cortisol secretion observed in the offspring born from ID mothers during childhood may indicate increased stress reactivity which may have contributed to the higher level of activity when tested in a novel open environment. These findings suggest that MID can potentially act as internal stressor affecting the early development conceivably leading to increased stress levels in the children.
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Shero N, Fiset S, Blakley B, Jougleux JL, Surette ME, Thabet M, Rioux FM. Impact of maternal iron deficiency on the auditory functions in the young and adult guinea pig. Nutr Neurosci 2017; 22:444-452. [PMID: 29198184 DOI: 10.1080/1028415x.2017.1408946] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVES The aim of this study was to evaluate the hearing function in the guinea pig offspring at post-natal day (PNd) 24 and PNd84 born from dams suffering from iron deficiency during pregnancy and lactation by using the auditory brainstem response (ABR). METHOD Female guinea pigs (n = 24 per dietary group) were fed an iron sufficient (IS) diet (114 mg/kg) or an iron deficient (ID) diet (11.7 mg/kg) during the gestation and lactation periods. Pups in both groups were weaned at PNd9 and given the IS diet. The hematocrit level was measured at every trimester of pregnancy and at the day of sacrifice in dams and at PNd24 and PNd84 in pups. The animal body weight was measured on every second day until the day of sacrifice. The ABR was used in pups to measure the hearing threshold using a broad range of stimulus intensities and latency at 100 and 80 dB in response to 2, 4, 8, 16, and 32 kHz tone pips at PNd24 and 84. RESULTS AND DISCUSSION No significant difference between dietary groups was measured in hearing threshold and absolute latencies in pups at PNd24 and PNd84. Although the ID offspring (n = 16) did not differ in brainstem transmission times (BTTs) at 80 dB compare to the IS siblings (n = 25) at PNd24, they showed significant delayed inter-peak latency (IPL) I-IV at 100 dB suggesting a delayed BTT. At PNd84, the latency of all peaks including IPL I-IV at 80 and 100 dB significantly decreased and was also similar in pups from both dietary groups suggesting a better brain maturation. This is the first study investigating the long-term impact of maternal iron deficiency on the auditory functions in the guinea pig offspring during early development to adulthood.
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Affiliation(s)
- Nora Shero
- a School of Human Nutrition, McGill University , Ste-Anne-de-Bellevue , Quebec , Canada
| | - Sylvain Fiset
- b Secteur des Sciences Humaines , Université de Moncton , Moncton , New Brunswick , Canada
| | - Brian Blakley
- c Department of Otolaryngology , University of Manitoba , Winnipeg , Manitoba , Canada
| | - Jean-Luc Jougleux
- d Department of Chemistry and Biochemistry , Université de Moncton , Moncton , New Brunswick , Canada
| | - Marc E Surette
- d Department of Chemistry and Biochemistry , Université de Moncton , Moncton , New Brunswick , Canada
| | | | - France M Rioux
- f École des Sciences de la Nutrition, Université d'Ottawa , Ottawa , Ontario , Canada
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Li Z, Mei Z, Zhang L, Li H, Zhang Y, Li N, Ye R, Ren A, Liu JM, Serdula MK. Effects of Prenatal Micronutrient Supplementation on Spontaneous Preterm Birth: A Double-Blind Randomized Controlled Trial in China. Am J Epidemiol 2017; 186:318-325. [PMID: 28472219 DOI: 10.1093/aje/kwx094] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 09/12/2016] [Indexed: 12/17/2022] Open
Abstract
In this secondary analysis of data from a double-blind randomized controlled trial carried out in northern China, we aimed to assess the effect of prenatal supplementation with multiple micronutrients (MMN) or iron + folic acid (IFA), versus folic acid (FA) alone, on risk of spontaneous preterm birth (SPB) and the impact of supplementation timing on SPB. A total of 18,775 nulliparous pregnant women enrolled between 2006 and 2009 were randomly assigned to receive daily FA, IFA, or MMN from the period before 20 weeks' gestation to delivery. The incidences of SPB for women consuming FA, IFA, and MMN were 5.7%, 5.6% and 5.1%, respectively. Compared with women given FA, the relative risks of SPB for those using MMN and IFA were 0.99 (95% confidence interval: 0.85, 1.16) and 0.89 (95% confidence interval: 0.79, 1.05), respectively. SPB incidence in women who started consuming FA, IFA, and MMN before the 12th week of gestation (4.6%, 4.2%, and 3.9%, respectively) was significantly reduced compared with starting supplement use on or after the 12th gestational week (6.9%, 7.2%, and 6.4%, respectively). Starting use of FA, IFA, or MMN supplements before the 12th week of gestation produced a 41%-45% reduction in risk of SPB. Early prenatal enrollment and micronutrient use during the first trimester of pregnancy appeared to be of particular importance for prevention of SPB, regardless of supplement group.
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Heng YJ, Pennell CE, McDonald SW, Vinturache AE, Xu J, Lee MWF, Briollais L, Lyon AW, Slater DM, Bocking AD, de Koning L, Olson DM, Dolan SM, Tough SC, Lye SJ. Maternal Whole Blood Gene Expression at 18 and 28 Weeks of Gestation Associated with Spontaneous Preterm Birth in Asymptomatic Women. PLoS One 2016; 11:e0155191. [PMID: 27333071 PMCID: PMC4917227 DOI: 10.1371/journal.pone.0155191] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Accepted: 04/25/2016] [Indexed: 01/08/2023] Open
Abstract
The heterogeneity of spontaneous preterm birth (SPTB) requires an interdisciplinary approach to determine potential predictive risk factors of early delivery. The aim of this study was to investigate maternal whole blood gene expression profiles associated with spontaneous preterm birth (SPTB, <37 weeks) in asymptomatic pregnant women. The study population was a matched subgroup of women (51 SPTBs, 114 term delivery controls) who participated in the All Our Babies community based cohort in Calgary (n = 1878). Maternal blood at 17–23 (sampling time point 1, T1) and 27–33 weeks of gestation (T2) were collected. Total RNA was extracted and microarray was performed on 326 samples (165 women). Univariate analyses determined significant clinical factors and differential gene expression associated with SPTB. Thirteen genes were validated using qRT-PCR. Three multivariate logistic models were constructed to identify gene expression at T1 (Model A), T2 (Model B), and gene expression fold change from T1 to T2 (Model C) associated with SPTB. All models were adjusted for clinical factors. Model C can predict SPTB with 65% sensitivity and 88% specificity in asymptomatic women after adjusting for history of abortion and anaemia (occurring before T2). Clinical data enhanced the sensitivity of the Models to predict SPTB. In conclusion, clinical factors and whole blood gene expression are associated with SPTB in asymptomatic women. An effective screening tool for SPTB during pregnancy would enable targeted preventive approaches and personalised antenatal care.
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Affiliation(s)
- Yujing J. Heng
- Departments of Obstetrics & Gynaecology and Physiology, University of Toronto, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
- Department of Pathology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, MA, United States of America
- * E-mail:
| | - Craig E. Pennell
- School of Women's and Infants' Health, The University of Western Australia, Crawley, WA, Australia
| | - Sheila W. McDonald
- Department of Paediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Angela E. Vinturache
- Department of Paediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Departments of Obstetrics & Gynaecology and Physiology & Pharmacology, Cumming School of Medicine, University of Calgary, AB, Canada
| | - Jingxiong Xu
- Departments of Obstetrics & Gynaecology and Physiology, University of Toronto, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
- Dalla Lana School of Public Health, University of Toronto, ON, Canada
| | - Mary W. F. Lee
- Departments of Obstetrics & Gynaecology and Physiology, University of Toronto, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
| | - Laurent Briollais
- Departments of Obstetrics & Gynaecology and Physiology, University of Toronto, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
- Dalla Lana School of Public Health, University of Toronto, ON, Canada
| | - Andrew W. Lyon
- Department of Pathology and Lab Medicine, University of Saskatchewan, St Paul’s Hospital, Saskatoon Health Region, Saskatoon, SK, Canada
| | - Donna M. Slater
- Department of Paediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Departments of Obstetrics & Gynaecology and Physiology & Pharmacology, Cumming School of Medicine, University of Calgary, AB, Canada
| | - Alan D. Bocking
- Departments of Obstetrics & Gynaecology and Physiology, University of Toronto, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
| | - Lawrence de Koning
- Department of Paediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Calgary Laboratory Services, Calgary, AB, Canada
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - David M. Olson
- Departments of Obstetrics & Gynecology, Physiology and Pediatrics, University of Alberta, Edmonton, AB, Canada
| | - Siobhan M. Dolan
- Department of Obstetrics & Gynecology and Women's Health (Reproductive Genetics), Albert Einstein College of Medicine, Bronx, NY, United States of America
| | - Suzanne C. Tough
- Department of Paediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Stephen J. Lye
- Departments of Obstetrics & Gynaecology and Physiology, University of Toronto, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
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Hidayat ZZ, Ajiz EA, A, Krisnadi SR. Risk Factors Associated with Preterm Birth at Hasan Sadikin General Hospital in 2015. ACTA ACUST UNITED AC 2016. [DOI: 10.4236/ojog.2016.613098] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Jafarbegloo E, Ahmari Tehran H, Dadkhah Tehrani T. Gastrointestinal Complications of Ferrous Sulfate in Pregnant Women: A Randomized Double-Blind Placebo-Controlled Trial. IRANIAN RED CRESCENT MEDICAL JOURNAL 2015; 17:e15001. [PMID: 26430520 PMCID: PMC4587092 DOI: 10.5812/ircmj.15001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 12/19/2014] [Accepted: 04/20/2015] [Indexed: 11/23/2022]
Abstract
Background: Some pregnant women discontinue iron supplements consumption due to Gastrointestinal (GI) complications, whereas pregnancy induces the same complications physiologically. Objectives: The aim of the present study was to assess GI complications of ferrous sulfate in pregnant women. Patients and Methods: This randomized, double-blind, placebo-controlled clinical trial was performed on 176 pregnant women referred to prenatal care clinic of Maryam Hospital from April 2011 to February 2012. Pregnant women with Hb ≥ 13.2 gr/dL at 13th - 18th weeks of gestation were selected based on the inclusion criteria and were randomly assigned to the ferrous sulfate and placebo groups. The ferrous sulfate group (n = 90) received a 50-mg ferrous sulfate tablet daily from the 20th week to the end of pregnancy and the placebo group (n = 89) received one placebo tablet in the same way. All participants were visited twice at 24th - 28th and 32nd - 36th weeks to assess the GI complications as well as Hb level to determine the Hb changes in two groups. Chi-square test, t-test and Kolmogorov-Smirnov test were used to analyze the data. P value of < 0.05 and confidence level of 95% were considered as statistically significant. Results: None of the GI complications were significantly different between the ferrous sulfate and placebo groups at 24th - 28th and 32nd - 36th weeks. Hemoglobin drop lower than 10.5 gr/dL at 24th - 28th weeks or lower than 11 g/dL at 32nd - 36th weeks was not observed in any cases. Conclusions: It can be concluded that GI complications in pregnant women using ferrous sulfate are mostly caused by physiologic changes of pregnancy rather than ferrous sulfate; therefore, it is not reasonable to stop using ferrous sulfate due to GI complications.
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Affiliation(s)
- Esmat Jafarbegloo
- School of Nursing and Midwifery, Health Care Research Center, Qom University of Medical Sciences, Qom, IR Iran
| | - Hoda Ahmari Tehran
- PhD Student in Medical Education, Department of Medical Education, Tehran University of Medical Sciences, Tehran, IR Iran
| | - Tahmineh Dadkhah Tehrani
- School of Nursing and Midwifery, Health Care Research Center, Qom University of Medical Sciences, Qom, IR Iran
- Corresponding Author: Tahmineh Dadkhah Tehrani, School of Nursing and Midwifery, Health Care Research Center, Qom University of Medical Sciences, Qom, IR Iran. Tel: +98-2537706694, Fax: +98-2537704233, E-mail:
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Antony KM, Ma J, Mitchell KB, Racusin DA, Versalovic J, Aagaard K. The preterm placental microbiome varies in association with excess maternal gestational weight gain. Am J Obstet Gynecol 2015; 212:653.e1-16. [PMID: 25557210 DOI: 10.1016/j.ajog.2014.12.041] [Citation(s) in RCA: 155] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 11/10/2014] [Accepted: 12/17/2014] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Although a higher maternal body mass index is associated with preterm birth, it is unclear whether excess gestational weight gain (GWG) or obesity drives increased risk. We and others have shown that the placenta harbors microbiota, which is significantly different among preterm births. Our aim in this study was to investigate whether the preterm placental microbiome varies by virtue of obesity or alternately by excess GWG. STUDY DESIGN Placentas (n=320) were collected from term and preterm pregnancies. Genomic DNA was extracted and subjected to metagenomic sequencing. Data were analyzed by clinical covariates that included the 2009 Institute of Medicine's GWG guideline and obesity. RESULTS Analysis of 16S recombinant RNA-based metagenomics revealed no clustering of the microbiome by virtue of obesity (P=.161). Among women who spontaneously delivered preterm, there was again no clustering by obesity (P=.480), but there was significant clustering by excess GWG (P=.022). Moreover, among preterm births, detailed analysis identified microbial genera (family and genus level) and bacterial metabolic gene pathways that varied among pregnancies with excess GWG. Notably, excess GWG was associated with decreased microbial folate biosynthesis pathways and decreased butanoate metabolism (linear discriminate analysis, >3.0-fold). CONCLUSION Although there were no significant alterations in the microbiome by virtue of obesity per se, excess GWG was associated with an altered microbiome and its metabolic profile among those women who experienced a preterm birth.
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Malhotra N, Upadhyay RP, Bhilwar M, Choy N, Green T. The role of maternal diet and iron-folic acid supplements in influencing birth weight: evidence from India's National Family Health Survey. J Trop Pediatr 2014; 60:454-60. [PMID: 25266114 DOI: 10.1093/tropej/fmu051] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
AIM To examine the role of maternal diet in determining low birth weight (LBW) in Indian infants. METHODS Data from the National Family Health Survey (2005-06) were used. Multivariate regression analysis was used to analyse the effect of maternal diet on infant birth weight. RESULTS Infants whose mothers consumed milk and curd daily [odds ratio (OR), 1.17; 95% confidence interval (CI), 1.06-1.29]; fruits daily (OR, 1.20; 95% CI, 1.07-1.36) or weekly (OR, 1.13; 95% CI, 1.02-1.24) had higher odds of not having a low birth weight baby. The daily consumption of pulses and beans (OR, 1.18; 95% CI, 1.02-1.36) increased the odds while weekly consumption of fish (OR, 0.79; 95% CI, 0.70-0.89) decreased the odds of not having a LBW infant. Intake of iron-folic acid supplements during pregnancy increased birth weight by 6.46 g per month. CONCLUSION Improved intake of micronutrient-rich foods can increase birth weight.
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Affiliation(s)
- Nisha Malhotra
- Vancouver School of Economics, Faculty of Arts, University of British Columbia, Vancouver, V6T1Z1, Canada
| | - Ravi Prakash Upadhyay
- Department of Community Medicine, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi 110029, India
| | - Meenakshi Bhilwar
- Department of Community Medicine, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi 110029, India
| | - Nicholas Choy
- Market Research Analyst, iData Research, Vancouver, V5Z4J7, Canada
| | - Timothy Green
- Faculty of Land & Food Systems, University of British Columbia, Vancouver, V6T1Z4, Canada
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Bora R, Sable C, Wolfson J, Boro K, Rao R. Prevalence of anemia in pregnant women and its effect on neonatal outcomes in Northeast India. J Matern Fetal Neonatal Med 2013; 27:887-91. [PMID: 24041147 DOI: 10.3109/14767058.2013.845161] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVES To determine the prevalence of anemia in pregnant women and characterize its effect on neonatal outcome in Northeast India. PATIENTS AND METHODS Four hundred and seventy mothers and their newborn infants during a one month period were included. The association between maternal hemoglobin (Hb) at delivery and neonatal outcomes were determined. RESULTS Anemia (Hb < 110 g/L) was present in 421 (89.6%) mothers with 35 (8.3%) having severe anemia(Hb < 70 g/L). After adjusting for maternal and neonatal variables, each 10 g/L decrease in maternal Hb was associated with 0.18 week decrease in gestational length (p = 0.003) and 21 g decrease in birth weight (p = 0.093). Severe maternal anemia was associated with 0.63 week (95% CI, 0.03-1.23week) shorter gestation, 481 g (95% CI, 305-658 g) lower birth weight and 89% increased risk of small-for-gestation (OR 1.89, 95% CI, 1.25-2.86)in the offspring, compared with those born to mothers without anemia (p < 0.001). CONCLUSION Maternal anemia was highly prevalentin this population. Lower gestational age and birth weight, and increased risk of small-for-gestation were associated with maternal anemia, especially when maternal Hb was <80 g/L. Maternal anemia needs urgent attention to improve neonatal outcome in this population.
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Affiliation(s)
- Reeta Bora
- Neonatal Unit, Department of Pediatrics, Assam Medical College , Dibrugarh, Assam , India
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