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Hahka TM, Slotkowski RA, Akbar A, VanOrmer MC, Sembajwe LF, Ssekandi AM, Namaganda A, Muwonge H, Kasolo JN, Nakimuli A, Mwesigwa N, Ishimwe JA, Kalyesubula R, Kirabo A, Anderson Berry AL, Patel KP. Hypertension Related Co-Morbidities and Complications in Women of Sub-Saharan Africa: A Brief Review. Circ Res 2024; 134:459-473. [PMID: 38359096 PMCID: PMC10885774 DOI: 10.1161/circresaha.123.324077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
Hypertension is the leading cause of cardiovascular disease in women, and sub-Saharan African (SSA) countries have some of the highest rates of hypertension in the world. Expanding knowledge of causes, management, and awareness of hypertension and its co-morbidities worldwide is an effective strategy to mitigate its harms, decrease morbidities and mortality, and improve individual quality of life. Hypertensive disorders of pregnancy (HDPs) are a particularly important subset of hypertension, as pregnancy is a major stress test of the cardiovascular system and can be the first instance in which cardiovascular disease is clinically apparent. In SSA, women experience a higher incidence of HDP compared with other African regions. However, the region has yet to adopt treatment and preventative strategies for HDP. This delay stems from insufficient awareness, lack of clinical screening for hypertension, and lack of prevention programs. In this brief literature review, we will address the long-term consequences of hypertension and HDP in women. We evaluate the effects of uncontrolled hypertension in SSA by including research on heart disease, stroke, kidney disease, peripheral arterial disease, and HDP. Limitations exist in the number of studies from SSA; therefore, we will use data from countries across the globe, comparing and contrasting approaches in similar and dissimilar populations. Our review highlights an urgent need to prioritize public health, clinical, and bench research to discover cost-effective preventative and treatment strategies that will improve the lives of women living with hypertension in SSA.
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Affiliation(s)
- Taija M Hahka
- Department of Cellular and Integrative Physiology (T.M.H., A.L.A.B., K.P.P.), University of Nebraska Medical Center, Omaha, NE
- Department of Pediatrics (T.M.H., R.A.S., A.A., M.C.V., A.L.A.B.), University of Nebraska Medical Center, Omaha, NE
| | - Rebecca A Slotkowski
- Department of Pediatrics (T.M.H., R.A.S., A.A., M.C.V., A.L.A.B.), University of Nebraska Medical Center, Omaha, NE
| | - Anum Akbar
- Department of Pediatrics (T.M.H., R.A.S., A.A., M.C.V., A.L.A.B.), University of Nebraska Medical Center, Omaha, NE
| | - Matt C VanOrmer
- Department of Pediatrics (T.M.H., R.A.S., A.A., M.C.V., A.L.A.B.), University of Nebraska Medical Center, Omaha, NE
| | - Lawrence Fred Sembajwe
- Department of Medical Physiology (L.F.S., A.M.S., A. Namaganda, H.M., J.N.K., R.K.), Makerere University College of Health Sciences, Kampala, Uganda
| | - Abdul M Ssekandi
- Department of Medical Physiology (L.F.S., A.M.S., A. Namaganda, H.M., J.N.K., R.K.), Makerere University College of Health Sciences, Kampala, Uganda
| | - Agnes Namaganda
- Department of Medical Physiology (L.F.S., A.M.S., A. Namaganda, H.M., J.N.K., R.K.), Makerere University College of Health Sciences, Kampala, Uganda
| | - Haruna Muwonge
- Department of Medical Physiology (L.F.S., A.M.S., A. Namaganda, H.M., J.N.K., R.K.), Makerere University College of Health Sciences, Kampala, Uganda
| | - Josephine N Kasolo
- Department of Medical Physiology (L.F.S., A.M.S., A. Namaganda, H.M., J.N.K., R.K.), Makerere University College of Health Sciences, Kampala, Uganda
| | - Annettee Nakimuli
- Department of Obstetrics and Gynecology (A. Nakimuli), Makerere University College of Health Sciences, Kampala, Uganda
| | - Naome Mwesigwa
- Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, TN (N.M., J.A.I., A.K.)
| | - Jeanne A Ishimwe
- Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, TN (N.M., J.A.I., A.K.)
| | - Robert Kalyesubula
- Department of Medical Physiology (L.F.S., A.M.S., A. Namaganda, H.M., J.N.K., R.K.), Makerere University College of Health Sciences, Kampala, Uganda
| | - Annet Kirabo
- Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, TN (N.M., J.A.I., A.K.)
| | - Ann L Anderson Berry
- Department of Cellular and Integrative Physiology (T.M.H., A.L.A.B., K.P.P.), University of Nebraska Medical Center, Omaha, NE
- Department of Pediatrics (T.M.H., R.A.S., A.A., M.C.V., A.L.A.B.), University of Nebraska Medical Center, Omaha, NE
| | - Kaushik P Patel
- Department of Cellular and Integrative Physiology (T.M.H., A.L.A.B., K.P.P.), University of Nebraska Medical Center, Omaha, NE
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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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Yan X, Kong F, Wang A, Li F, Chen L. Prevalence and the influencing factors for critical situation of 6 579 pregnant women with hypertensive disorders complicating pregnancy. ZHONG NAN DA XUE XUE BAO. YI XUE BAN = JOURNAL OF CENTRAL SOUTH UNIVERSITY. MEDICAL SCIENCES 2021; 46:814-821. [PMID: 34565724 PMCID: PMC10929982 DOI: 10.11817/j.issn.1672-7347.2021.200601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Indexed: 11/03/2022]
Abstract
OBJECTIVES Hypertensive disorders complicating pregnancy is a kind of disease that seriously endangers the health of pregnant women and fetuses with high incidence. This study aims to analyze the prevalence of pregnant women with hypertensive disorders complicating pregnancy and the influential factors for critical pregnant women, and to provide basis for intervention measures. METHODS In an institution-based cross-sectional study, 100 683 pregnant women, who gave birth in all maternal and child health hospitals of Hunan Province from January 1, 2012 to December 31, 2019, were collected, and 6 579 pregnant women with hypertensive disorders complicating pregnancy were monitored. All data were analyzed through SAS9.4 software. The basic situation, clinical data, outcome, and complications of pregnant women were analyzed, and the risk factors for critical pregnant women with hypertensive disorders complicating pregnancy were analyzed. RESULTS The prevalence rate of hypertensive disorder complicating pregnancy was increased from 4.3% in 2012 to 7.1% in 2019, and the proportion of hypertensive disorder complicating pregnant women with complications in the hypertensive disorder complicating pregnant women was increased from 28.1% in 2012 to 83.7% in 2019. Elderly pregnant women accounted for 22.2%, married women accounted for 99.9%, women with university degree accounted for 49.5%, one pregnancy accounted for 38%, and zero delivery accounted for 63.5%. In the past, 18.4% of pregnant women had more than one cesarean section, accounting for 18.4%. About 99.0% of pregnant women had 5-10 antenatal check-ups, 72.6% had complications, and 93.8% were terminated when they were discharged. The first 3 complications were anemia in 2 355 cases (29.3%), gestational diabetes in 1 886 cases (23.4%), and subclinical hypothyroidism in 947 cases (11.8%). Logistic regression analysis showed that uterine rupture, placental abruption, placenta previa, anemia, and heart disease were independent risk factors for critical pregnant women. CONCLUSIONS The prevalence of hypertensive disorders complicating pregnancy is on the rise. Pregnancy examination should be enhanced to identify the complications such as hypothyroidism, gestational diabetes, and anemia. Prevention and treatment measures should be actively taken for uterine rupture, placental abruption, placenta previa, anemia, and heart disease.
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Affiliation(s)
- Xuemei Yan
- Department of Internal Medicine, Hunan Provincial Maternal and Child Health Care Hospital, Changsha 410008.
| | - Fanjuan Kong
- Department of Information Management, Hunan Provincial Maternal and Child Health Care Hospital, Changsha 410008
| | - Aihua Wang
- Department of Information Management, Hunan Provincial Maternal and Child Health Care Hospital, Changsha 410008
| | - Fang Li
- Xiangya School of Public Health, Central South University, Changsha 410078, China
| | - Lizhang Chen
- Xiangya School of Public Health, Central South University, Changsha 410078, China.
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Yu H, Yin Y, Zhang J, Zhou R. The impact of particulate matter 2.5 on the risk of preeclampsia: an updated systematic review and meta-analysis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:37527-37539. [PMID: 32740838 PMCID: PMC7496023 DOI: 10.1007/s11356-020-10112-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 07/10/2020] [Indexed: 05/07/2023]
Abstract
There is increasing and inconsistent evidence of a linkage between maternal exposure to particulate matter 2.5 (PM2.5) and preeclampsia. Therefore, this study was conducted to investigate this relationship. Electronic databases including PubMed, Embase, Web of Science, and Cochrane Library were searched to identify articles published from inception to March 23, 2020, which showed a correlation between PM2.5 and preeclampsia. Finally, 9 of 523 initial studies were deemed eligible for inclusion. A random effect model was adopted to calculate the standardized odds ratio (OR) and 95% confidence interval (CI). Based on potential effect modification, subgroup analyses were further performed. Meta-analysis showed that maternal exposure to PM2.5 (per 10 μg/m3 increment) elevated the risk of preeclampsia (OR = 1.32, 95% CI 1.10 to 1.58%). Compared with other pregnancy trimesters, the third trimester of pregnancy seems to be the period in which women are more susceptible to PM2.5. Significant effect modification of the correlation between PM2.5 exposure and preeclampsia according to multiple pregnancies, pregnancy stage, maternal-related disease history, and sample size was not observed. The results demonstrated that maternal exposure to PM2.5 may predispose pregnant women to develop preeclampsia, especially in the third trimester of pregnancy. Therefore, more efforts should be made to improve air quality to maintain the health of pregnant women.
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Affiliation(s)
- Hongbiao Yu
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Yangxue Yin
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Jiashuo Zhang
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Rong Zhou
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, People's Republic of China.
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Tan J, Yang M, Liao Y, Qi Y, Ren Y, Liu C, Huang S, Thabane L, Liu X, Sun X. Development and validation of a prediction model on severe maternal outcomes among pregnant women with pre-eclampsia: a 10-year cohort study. Sci Rep 2020; 10:15590. [PMID: 32973289 PMCID: PMC7518280 DOI: 10.1038/s41598-020-72527-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Accepted: 08/18/2020] [Indexed: 02/05/2023] Open
Abstract
Pre-eclampsia is a severe hypertensive disorder of pregnancy and could lead to severe maternal morbidities and death. Our study aimed to develop and validate a prognostic prediction model for severe maternal outcomes among Chinese population with pre-eclampsia. We conducted a 10-year cohort study in a referral center by collecting all pregnant women who diagnosed as pre-eclampsia and delivered from 2005 to 2014. A composite of severe maternal outcomes, including maternal near-miss defined by World Health Organization, cortical blindness/retinal detachment, temporary facial paralysis and maternal death, were adopted. We used logistic regression model to develop Model 1 by retaining the predictors of p < 0.05, and further conducted Model 2 by adding quadratic terms and interaction terms to Model 1. We undertook a bootstrapping validation and estimated the model performance. A total of 397 pregnant women suffered from severe maternal outcomes among 2,793 eligible participants, with an incidence of 14.21% (95% confidence interval (CI) 12.91%–15.51%). Of 13 predictors were finally selected in Model 1. Combined with quadratic and interactive terms, the Model 2 showed higher area under the ROC curve (82.2%, 95% CI 79.6%–84.7%) and good calibration. By the bootstrapping validation, similar model performances were present.
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Affiliation(s)
- Jing Tan
- Chinese Evidence-Based Medicine Center, West China Hospital, Sichuan University, Chengdu, China.,Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada.,Biostatistics Unit, St Joseph's Healthcare Hamilton, Hamilton, ON, Canada
| | - Min Yang
- West China School of Public Health, Sichuan University, Chengdu, 610041, Sichuan, People's Republic of China.,West China Research Center for Rural Health Development, Sichuan University, Chengdu, Sichuan, People's Republic of China.,School of Medicine, University of Nottingham, Nottingham, UK
| | - Yuan Liao
- Department of Obstetrics and Gynecology, and Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Yana Qi
- Chinese Evidence-Based Medicine Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yan Ren
- Chinese Evidence-Based Medicine Center, West China Hospital, Sichuan University, Chengdu, China
| | - Chunrong Liu
- Chinese Evidence-Based Medicine Center, West China Hospital, Sichuan University, Chengdu, China
| | - Shiyao Huang
- Chinese Evidence-Based Medicine Center, West China Hospital, Sichuan University, Chengdu, China
| | - Lehana Thabane
- Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada.,Biostatistics Unit, St Joseph's Healthcare Hamilton, Hamilton, ON, Canada
| | - Xinghui Liu
- Department of Obstetrics and Gynecology, and Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, China.
| | - Xin Sun
- Chinese Evidence-Based Medicine Center, West China Hospital, Sichuan University, Chengdu, China.
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Systematic and meta-analysis of factors associated with preeclampsia and eclampsia in sub-Saharan Africa. PLoS One 2020; 15:e0237600. [PMID: 32813750 PMCID: PMC7437916 DOI: 10.1371/journal.pone.0237600] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Accepted: 07/29/2020] [Indexed: 01/24/2023] Open
Abstract
Background Preeclampsia and eclampsia are common complications of pregnancy globally, including sub-Saharan African (SSA) countries. Although it has a high burden on maternal and neonatal mortality and morbidity, evidence on the risk of the problem is limited. Therefore, the aim of this review was to examine the factors associated with preeclampsia and eclampsia among mothers in SSA countries. Methods We searched article from SSA countries using electronic database MEDLINE, EMBASE, PubMed, CINAHL published in English from January 2000 to May 2020. Two reviewers independently screened, extracted and assessed the quality of the articles. Both random and fixed effect model were used for analysis. Heterogeneity of the studies and publication bias were checked. STATA 16 used for analysis. Results Fifty-one studies met the inclusion criteria and included in this review. The following factors were identified through meta-analysis: being primiparous (OR: 2.52; 95% CI:1.19, 3.86), previous history of maternal preeclampsia/eclampsia (OR:5.6; 95% CI:1.82, 9.28), family history of preeclampsia/eclampsia (OR:1.68; 95% CI:1.26, 2.11), high maternal body mass index (OR: 1.69; 95% CI:1.17, 2.21), chronic hypertension (OR: 2.52; 95% CI:1.29, 3.74), anaemia during pregnancy (OR: 3.22; 95% CI:2.70, 3.75) and lack of antenatal care visits (OR: 2.71; 95% CI:1.45, 3.96). There was inconclusive evidence for a relationship with a number of other factors, such as nutrition and related factors, antenatal care visits, birth spacing, and other factors due to few studies found in our review. Conclusions The risk of preeclampsia and eclampsia is worse among women who have a history of preeclampsia/eclampsia (either themselves or family members), primiparous, obesity and overweight, living with chronic disease, having anaemia during pregnancy and absence from ANC visits. Therefore, investment must be made in women’s health needs to reduce the problem and health service providers need to give due attention to high-risk women.
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Dube YP, Nyapwere N, Magee LA, Vidler M, Moore SE, Barratt B, Craik R, von Dadelszen P, Makanga PT. Interactions between the Physical and Social Environments with Adverse Pregnancy Events Related to Placental Disorders-A Scoping Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E5421. [PMID: 32731379 PMCID: PMC7432342 DOI: 10.3390/ijerph17155421] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 07/22/2020] [Indexed: 11/17/2022]
Abstract
BACKGROUND Due to different social and physical environments across Africa, understanding how these environments differ in interacting with placental disorders will play an important role in developing effective interventions. METHODS A scoping review was conducted, to identify current knowledge on interactions between the physical and social environment and the incidence of placental disease in Africa. RESULTS Heavy metals were said to be harmful when environmental concentrations are beyond critical limits. Education level, maternal age, attendance of antenatal care and parity were the most investigated social determinants. CONCLUSIONS More evidence is needed to determine the relationships between the environment and placental function in Africa. The results show that understanding the nature of the relationship between social determinants of health (SDH) and placental health outcomes plays a pivotal role in understanding the risk in the heterogenous communities in Africa.
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Affiliation(s)
- Yolisa Prudence Dube
- Department of Surveying and Geomatics, Midlands State University, P. Bag 9055, Gweru, Zimbabwe; (N.N.); (P.T.M.)
| | - Newton Nyapwere
- Department of Surveying and Geomatics, Midlands State University, P. Bag 9055, Gweru, Zimbabwe; (N.N.); (P.T.M.)
| | - Laura A. Magee
- Department of Women and Children’s Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King’s College London, Strand, London WC2R 2LS, UK; (L.A.M.); (S.E.M.); (R.C.); (P.v.D.)
| | - Marianne Vidler
- Department of Obstetrics and Gynaecology and BC Children’s Hospital Research Institute, University of British Columbia, Suite 930, 1125 Howe Street, Vancouver, BC V6Z 2K8, Canada;
| | - Sophie E. Moore
- Department of Women and Children’s Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King’s College London, Strand, London WC2R 2LS, UK; (L.A.M.); (S.E.M.); (R.C.); (P.v.D.)
- Medical Research Council (MRC) Unit, LSHTM Atlantic Boulevard, Fajara P. O. Box 273, Banjul, The Gambia
| | - Benjamin Barratt
- Environmental Research Group, MRC Centre for Environment and Health, Imperial College London, Michael Uren Biomedical Engineering Hub, White City Campus, Wood Lane, London W12 0BZ, UK;
- NIHR HPRU in Environmental Exposures and Health, Imperial College London, Michael Uren Biomedical Engineering Hub, White City Campus, Wood Lane, London W12 0BZ, UK
| | - Rachel Craik
- Department of Women and Children’s Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King’s College London, Strand, London WC2R 2LS, UK; (L.A.M.); (S.E.M.); (R.C.); (P.v.D.)
| | - Peter von Dadelszen
- Department of Women and Children’s Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King’s College London, Strand, London WC2R 2LS, UK; (L.A.M.); (S.E.M.); (R.C.); (P.v.D.)
| | - Prestige Tatenda Makanga
- Department of Surveying and Geomatics, Midlands State University, P. Bag 9055, Gweru, Zimbabwe; (N.N.); (P.T.M.)
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Muthyala T, Rathore A, Shahnaz G, Kumar D, Singh P, Bhasin S. Does morbidly adherent placenta mask hypertension in pregnancy - a case report and review of literature. J OBSTET GYNAECOL 2019; 39:1019-1021. [PMID: 31210086 DOI: 10.1080/01443615.2019.1588866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Tanuja Muthyala
- Department of Obstetrics and Gynaecology, Maulana Azad Medical College , New Delhi , India
| | - Asmita Rathore
- Department of Obstetrics and Gynaecology, Maulana Azad Medical College , New Delhi , India
| | - Gazala Shahnaz
- Department of Obstetrics and Gynaecology, Maulana Azad Medical College , New Delhi , India
| | - Devender Kumar
- Department of Obstetrics and Gynaecology, Maulana Azad Medical College , New Delhi , India
| | - Preeti Singh
- Department of Obstetrics and Gynaecology, Maulana Azad Medical College , New Delhi , India
| | - Sangeeta Bhasin
- Department of Obstetrics and Gynaecology, Maulana Azad Medical College , New Delhi , India
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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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Jenabi E, Karami M, Khazaei S, Bashirian S. The association between preeclampsia and autism spectrum disorders among children: a meta-analysis. KOREAN JOURNAL OF PEDIATRICS 2018; 62:126-130. [PMID: 30590001 PMCID: PMC6477549 DOI: 10.3345/kjp.2018.07010] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 12/20/2018] [Indexed: 12/01/2022]
Abstract
Purpose In this meta-analysis, relevant case-control and cohort studies were pooled to evaluate the association between preeclampsia and the risk of autism spectrum disorders (ASDs) in children. Methods A search for relevant studies in major databases, including Web of Science, PubMed, and Scopus, was performed up to May 2018. The odds ratios (ORs) or rate ratios (RRs) with 95% confidence intervals (CIs) were extracted from eligible studies to determine the association among studies. Results The pooled estimates of ORs and RRs indicated a significant association between preeclampsia and ASD [(OR, 1.36; 95% CI, 1.12–1.60) and (RR, 1.30; 95% CI, 1.20–1.41)]. Conclusions Despite existing controversy, our findings indicated that preeclampsia was associated with an increased risk of ASD among children.
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Affiliation(s)
- Ensiyeh Jenabi
- Pediatric Developmental Disorders Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Manoochehr Karami
- Research Center for Health Sciences, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Salman Khazaei
- Research Center for Health Sciences, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Saeid Bashirian
- Social Determinants of Health Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
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11
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Tabandeh A, Eshghinia S, Joshaghani HR, Azarian M, Besharat S. Serum and Urinary Levels of Micronutrients in Women with Preeclampsia. JOURNAL OF CLINICAL AND BASIC RESEARCH 2018. [DOI: 10.29252/jcbr.2.1.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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12
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Güven D, Altunkaynak BZ, Altun G, Alkan I, Kocak İ. Histomorphometric changes in the placenta and umbilical cord during complications of pregnancy. Biotech Histochem 2018; 93:198-210. [DOI: 10.1080/10520295.2017.1410993] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- D Güven
- Department of Obstetrics and Gynecology, Faculty of Medicine, Ondokuz Mayis University, Samsun, Turkey
| | - BZ Altunkaynak
- Department of Histology and Embryology, Faculty of Medicine, Okan University, İstanbul, Turkey
| | - G Altun
- Department of Histology and Embryology, Faculty of Medicine, Ondokuz Mayis University, Samsun, Turkey
| | - I Alkan
- Department of Histology and Embryology, Faculty of Medicine, Ondokuz Mayis University, Samsun, Turkey
| | - İ Kocak
- Department of Obstetrics and Gynecology, Faculty of Medicine, Ondokuz Mayis University, Samsun, Turkey
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13
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Zhang N, Sun L, Zhang L, Li Z, Han J, Wu Q. Assessment of Fetal Myocardial Performance Index in Women with Placenta Previa. Med Sci Monit 2017; 23:5933-5942. [PMID: 29242496 PMCID: PMC5741044 DOI: 10.12659/msm.907576] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Background This study investigated whether fetuses of placenta previa pregnancies have cardiac dysfunction by use of a modified myocardial performance index (Mod-MPI). Material/Methods A prospective cross-sectional study was conducted including 178 fetuses at 28–40 weeks of gestation. Eighty-nine fetuses of mothers with placenta previa and without pregnancy complications were recruited (placenta previa group) and matched with 89 fetuses of mothers with normal pregnancies (control group). Fetal cardiac function parameters and perinatal outcomes as well as the Mod-MPI were compared between the 2 groups. Results The median Mod-MPI was significantly increased in fetuses of mothers with placenta previa compared with controls (0.47±0.05 vs. 0.45±0.05; P<0.01). Among fetuses of mothers with or without placenta previa, the Mod-MPI was significantly higher in the incomplete placenta previa group compared with the complete placenta previa group and control group (P<0.01). An increased Mod-MPI in placenta previa pregnancies was independently associated with fetal cord pH <7.2 (odds ratio, 4.8; 95% confidence interval, 0.98–23.54; P=0.003). Conclusions There is impairment of fetal cardiac function in pregnancies with placenta previa. An increased MPI was independently associated with adverse perinatal outcomes to some extent in the placenta previa pregnancies.
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Affiliation(s)
- Na Zhang
- Department of Ultrasound, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China (mainland)
| | - Lijuan Sun
- Department of Ultrasound, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China (mainland)
| | - Lina Zhang
- Department of Ultrasound, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China (mainland)
| | - Zhen Li
- Department of Ultrasound, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China (mainland)
| | - Jijing Han
- Department of Ultrasound, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China (mainland)
| | - Qingqing Wu
- Department of Ultrasound, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China (mainland)
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14
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Agabain E, Mohamed H, Elsheikh AE, Hamdan HZ, Adam I. Maternal serum anti-Müllerian hormone in Sudanese women with preeclampsia. BMC Res Notes 2017. [PMID: 28646929 PMCID: PMC5483251 DOI: 10.1186/s13104-017-2544-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Objectives A case–control study was conducted at Omdurman Maternity Tertiary Hospital, Sudan, during the period from May to August 2014 to investigate AMH level in women with preeclampsia compared to healthy controls. The cases were women with preeclampsia and healthy pregnant women were the controls. The obstetrics and medical history was gathered using a questionnaire. AMH level was measured using ELISA. Results There was no significant difference between the two groups (40 in each arm of the study) in the age, parity and gestational age. Thirty-three of the 40 cases were patients with severe preeclampsia. There was no significant difference in median inter-quartile of the AMH level between the women with preeclampsia and the controls [0.700 (0.225–1.500) vs. 0.700 (0.400–1.275) ng/ml, P = 0.967]. In a linear regression model there was no association between the log of AMH and age, parity, gestational age, BMI, hemoglobin level and preeclampsia.
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Affiliation(s)
- Eiman Agabain
- Medical College, Qassim University, Buraydah, Kingdom of Saudi Arabia
| | - Hameed Mohamed
- Faculty of Medicine, Alneelain University, Khartoum, Sudan
| | | | | | - Ishag Adam
- Medical College, Qassim University, Buraydah, Kingdom of Saudi Arabia. .,Faculty of Medicine, University of Khartoum, P.O. Box 102, 11111, Khartoum, Sudan.
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15
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Elmugabil A, Hamdan HZ, Elsheikh AE, Rayis DA, Adam I, Gasim GI. Serum Calcium, Magnesium, Zinc and Copper Levels in Sudanese Women with Preeclampsia. PLoS One 2016; 11:e0167495. [PMID: 27911936 PMCID: PMC5135106 DOI: 10.1371/journal.pone.0167495] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 11/15/2016] [Indexed: 01/24/2023] Open
Abstract
Background Although the exact pathophysiology of preeclampsia is not fully understood, several elemental micronutrient abnormalities have been suggested to play a contributory role in preeclampsia. Aims To investigate the levels of calcium, magnesium, zinc and copper in women with preeclampsia. Subjects and Methods A case—control study was conducted in Omdurman Maternity Hospital, Sudan, during the period of September through December 2014. The cases were women with preeclampsia while healthy pregnant women were the controls. The medical and obstetrics history was gathered using questionnaires. The serum levels of calcium, magnesium, zinc and copper were measured using atomic absorption spectrophotometer. Results There was no significant difference between the two groups in their age, gestational age, parity and body mass index. Zinc and copper levels were not significantly different between the two groups. In comparison with the controls, women with preeclampsia had a significantly lower median (inter-quartile) serum calcium [7.6 (4.0─9.6) vs. 8.1 (10.6─14.2), mg/dl, P = 0.032] and higher levels of magnesium [1.9 (1.4─2.5) vs. 1.4 (1.0─1.9) mg/dl; P = 0.003]. In binary logistic regression, lower calcium (OR = 0.73, 95% CI = 0.56 ─ 0.95, P = 0.021) and higher magnesium (OR = 5.724, 95% CI = 1.23 ─ 26.50, P = 0.026) levels were associated with preeclampsia. There were no significant correlations between levels of hemoglobin and these trace elements. Conclusion The current study showed significant associations between preeclampsia and serum levels of calcium and magnesium.
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Affiliation(s)
| | | | | | - Duria A. Rayis
- Faculty of Medicine, University of Khartoum, Khartoum, Sudan
| | - Ishag Adam
- Faculty of Medicine, University of Khartoum, Khartoum, Sudan
- * E-mail:
| | - Gasim I. Gasim
- Faculty of Medicine, Alneelain University, Khartoum, Sudan
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16
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Fadalallah ZM, Elhassan EM, Rayis DA, Abdullahi H, Adam I. Prospective cohort study of persistent hypertension following pre-eclampsia at Medani Hospital, Sudan. Int J Gynaecol Obstet 2016; 134:66-8. [PMID: 26975905 DOI: 10.1016/j.ijgo.2015.11.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 11/12/2015] [Accepted: 02/15/2016] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To evaluate the incidence of, and factors associated with, persistent hypertension in patients with pre-eclampsia. METHODS A prospective cohort study enrolled patients presenting with pre-eclampsia at Wad Medani Maternity Hospital, Sudan, between March 1 and October 31, 2014. Obstetric, clinical, and biochemical variables were recorded at presentation and at 6weeks after delivery. RESULTS Of 188 patients enrolled in the study, 6-week follow-up data were available for 165. Among these patients, 136 (82.4%) and 29 (17.6) had mild and severe pre-eclampsia, respectively. At 6-week follow-up, 58 (35.2%) patients were experiencing persistent hypertension. Patients with persistent hypertension demonstrated significantly lower platelet counts at baseline (P=0.001) and neonatal weight at delivery (P<0.001) than patients who were normotensive at 6weeks. Severe pre-eclampsia was more common among patients who experienced persistent hypertension than those who were normotensive 6weeks after delivery (P<0.001). In a logistic-regression analysis, none of the investigated factors was associated with persistent hypertension; however, patients experiencing severe pre-eclampsia were 7.3-times more likely to experience persistent hypertension than patients with mild pre-eclampsia (95% confidence interval 1.6-32.2; P=0.008). CONCLUSION Persistent hypertension 6weeks after delivery was common among patients who experienced pre-eclampsia in Sudan (particularly severe pre-eclampsia) regardless of patients' age and parity.
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Affiliation(s)
| | | | - Duria A Rayis
- Faculty of Medicine, University of Khartoum, Khartoum, Sudan
| | - Hala Abdullahi
- Faculty of Medicine, University of Khartoum, Khartoum, Sudan
| | - Ishag Adam
- Faculty of Medicine, University of Khartoum, Khartoum, Sudan.
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17
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Biberoglu E, Kirbas A, Daglar K, Biberoglu K, Timur H, Demirtas C, Karabulut E, Danisman N. Serum angiogenic profile in abnormal placentation. J Matern Fetal Neonatal Med 2016; 29:3193-7. [DOI: 10.3109/14767058.2015.1118044] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Ebru Biberoglu
- Department of Perinatology, Zekai Tahir Burak Women's Health Education and Research Hospital, Ankara, Turkey,
| | - Ayse Kirbas
- Department of Perinatology, Zekai Tahir Burak Women's Health Education and Research Hospital, Ankara, Turkey,
| | - Korkut Daglar
- Department of Perinatology, Zekai Tahir Burak Women's Health Education and Research Hospital, Ankara, Turkey,
| | - Kutay Biberoglu
- Department of Obstetrics and Gynecology, Gazi University Medical School, Ankara, Turkey,
| | - Hakan Timur
- Department of Perinatology, Zekai Tahir Burak Women's Health Education and Research Hospital, Ankara, Turkey,
| | - Canan Demirtas
- Department of Biochemistry, Gazi University Medical School, Ankara, Turkey, and
| | - Erdem Karabulut
- Department of Biostatistics, Hacettepe University Medical School, Ankara, Turkey
| | - Nuri Danisman
- Department of Perinatology, Zekai Tahir Burak Women's Health Education and Research Hospital, Ankara, Turkey,
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18
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Ying H, Lu Y, Dong YN, Wang DF. Effect of Placenta Previa on Preeclampsia. PLoS One 2016; 11:e0146126. [PMID: 26731265 PMCID: PMC4701488 DOI: 10.1371/journal.pone.0146126] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 12/14/2015] [Indexed: 11/24/2022] Open
Abstract
Background The correlation between gestational hypertension-preeclampsia (GH-PE) and placenta previa (PP) is controversial. Specifically, it is unknown whether placenta previa has any effect on the various types of preeclampsia (PE), and the role PP with concurrent placenta accreta (PA) play in the occurrence of GH-PE are not well understood. Objective The aim of this study was to identify the effects of PP on GH, mild and severe preeclampsia (MPE and SPE), and early- and late-onset preeclampsia (EPE and LPE). Another aim of the study was to determine if concurrent PA impacts the relationship between PP and GH-PE. Methods A retrospective single-center study of 1,058 patients having singleton pregnancies with PP was performed, and 2,116 pregnant women were randomly included as controls. These cases were collected from a tertiary hospital and met the inclusion criteria for the study. Clinical information, including PP and the gestational age at the onset of GH-PE were collected. Binary and multiple logistic regression analyses were conducted after the confounding variables were controlled to assess the effects of PP on different types of GH-PE. Results There were 155 patients with GH-PE in the two groups. The incidences of GH-PE in the PP group and the control group were 2.5% (26/1058) and 6.1% (129/2116), respectively (P = 0.000). Binary and multiple regression analyses were conducted after controlling for confounding variables. Compared to the control group, in the PP group, the risk of GH-PE was reduced significantly by 78% (AOR: 0.216; 95% CI: 0.135–0.345); the risks of GH and PE were reduced by 55% (AOR: 0.451; 95% CI: 0.233–0.873) and 86% (AOR: 0.141; 95% CI: 0.073–0.271), respectively; the risks of MPE and SPE were reduced by 73% (AOR: 0.269; 95% CI: 0.087–0828) and 88% (AOR: 0.123; 95% CI: 0.055–0.279), respectively; and the risks of EPE and LPE were reduced by 95% (AOR: 0.047; 95% CI: 0.012–0.190) and 67% (AOR: 0.330; 95% CI: 0.153–0.715), respectively. The incidence of concurrent PA in women with PP was 5.86%; PP with PA did not significantly further reduce the incidence of GH-PE compared with PP without PA (1.64% vs. 2.51%, P>0.05). Binary logistic regression analyses were conducted after controlling for confounding variables, compared with the non-PP + GH-PE group, and the AOR of FGR in the non-PP + non-GH-PE group was 0.206 (0.124–0.342). Compared with the PP + GH-PE group, the AOR of FGR in the PP + non-GH-PE group was 0.430 (0.123–1.500). Conclusion PP is not only associated with a significant reduction in the incidence of GH-PE, but also is associated with a reduction in incidence of various types of PE. Concurrent PA and PP do not show association with a reduction in incidence of GH-PE.
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Affiliation(s)
- Hao Ying
- Department of Obstetrics, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
- * E-mail:
| | - Yi Lu
- Department of Obstetrics, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yi-Nuo Dong
- Department of Obstetrics, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - De-Fen Wang
- Department of Obstetrics, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
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Dennis AT, Castro JM. Hypertension and haemodynamics in pregnant women--is a unified theory for pre-eclampsia possible? Anaesthesia 2015; 69:1183-9. [PMID: 25302966 DOI: 10.1111/anae.12832] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- A T Dennis
- Department of Anaesthesia, The Royal Women's Hospital, Parkville, Victoria, Australia; Departments of Pharmacology and Obstetrics and Gynaecology, The University of Melbourne, Parkville, Victoria, Australia.
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20
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Heidari Z, Sakhavar N, Mahmoudzadeh-Sagheb H, Ezazi-Bojnourdi T. Stereological analysis of human placenta in cases of placenta previa in comparison with normally implanted controls. J Reprod Infertil 2015; 16:90-5. [PMID: 25927025 PMCID: PMC4386091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Accepted: 09/20/2014] [Indexed: 10/31/2022] Open
Abstract
BACKGROUND Placenta previa (PP) is an obstetric complication that can affect maternal and fetal morbidity and mortality. Its prevalence is rising due to cesarean sections. There is no quantitative data of placenta in PP. In this study, quantitative parameters of placenta in cases with PP in comparison with normally implanted controls were investigated. METHODS In this quasi experimental study, placentas from pregnancies with PP and normally implanted controls (n = 10) were obtained from women who underwent cesarean section. Three full-thickness columns of each placenta were sampled using systematic uniform random sampling (SURS). Columns were cut into slices and slices were sectioned with 4 µm thickness. SURS selected sections were stained by Masson's trichrome. Stereological analysis was done on 8-10 SURS microscopic fields of each section. Absolute volume and volume density of chorionic villi, intervillous space, syncytiotrophoblast, fibrin and blood vessels in chorionic villi were estimated in both groups. Statistical analysis was done using Mann Whitney-U test and significant level was set at p < 0.05. RESULTS There was a significant reduction in total volume and volume density of fibrin deposits on the surface of chorionic villi (p < 0.05), and a significant increment in total volume and volume density of chorionic villous blood vessels in PP group in comparison with C group (p < 0.05). CONCLUSION Results showed that impairment in situation of implantation in PP can cause significant changes in the structure of placenta. These changes probably can be influential on the evolution and survival of fetus.
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Affiliation(s)
- Zahra Heidari
- Genetic of Non-communicable Diseases Research Center, Department of Histology, Faculty of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Nahid Sakhavar
- Department of Obstetrics and Gynecology, Faculty of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Hamidreza Mahmoudzadeh-Sagheb
- Genetic of Non-communicable Diseases Research Center, Department of Histology, Faculty of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Tahmine Ezazi-Bojnourdi
- Department of Obstetrics and Gynecology, Faculty of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran,Corresponding Author: Tahmine Ezazi-Bojnourdi, Department of Obstetrics and Gynecology, Faculty of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran. E-mail:
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Al-Rukeimi AA, Al-Haddad A, Adam I. Risk factors for pre-eclampsia, eclampsia, and associated adverse outcomes in Hajjah, Yemen. Int J Gynaecol Obstet 2014; 127:91-2. [DOI: 10.1016/j.ijgo.2014.06.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 06/07/2014] [Accepted: 07/09/2014] [Indexed: 10/25/2022]
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