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Scime NV, Grandi SM, Ray JG, Dennis CL, De Vera MA, Banack HR, Vigod SN, Boblitz A, Brown HK. Pregnancy complications and new-onset maternal autoimmune disease. Int J Epidemiol 2024; 53:dyae115. [PMID: 39191479 DOI: 10.1093/ije/dyae115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 08/12/2024] [Indexed: 08/29/2024] Open
Abstract
BACKGROUND Autoimmune diseases disproportionately impact women and female-specific aspects of reproduction are thought to play a role. We investigated the time-varying association between pregnancy complications and new-onset autoimmune disease in females during the reproductive and midlife years. METHODS We conducted a population-based cohort study of 1 704 553 singleton births to 1 072 445 females in Ontario, Canada (2002-17) with no pre-existing autoimmune disease. Pregnancy complications were preeclampsia, stillbirth, spontaneous preterm birth and severe small for gestational age (SGA). Royston-Parmar models were used to estimate the time-varying association between pregnancy complications and a composite of 25 autoimmune diseases from date of delivery to date of autoimmune disease diagnosis or censoring at death, loss of health insurance, or 31 March 2021. Models were adjusted for baseline socio-demographics, parity and comorbidities. RESULTS At 19 years (median = 10.9 years of follow-up), cumulative incidence of autoimmune disease was 3.1% in those with a pregnancy complication and 2.6% in those without complications. Adjusted hazard ratio (AHR) curves as a function of time since birth were generally L-shaped. Universally, risks were most elevated within the first 3 years after birth [at 1 year: preeclampsia AHR 1.22, 95% confidence interval (CI) 1.09-1.36; stillbirth AHR 1.36, 95% CI 0.99-1.85; spontaneous preterm birth AHR 1.30, 95% CI 1.18-1.44; severe SGA AHR 1.14, 95% CI 0.99-1.31] and plateaued but remained elevated thereafter. CONCLUSIONS Prior history of pregnancy complications may be an important female-specific risk factor to consider during clinical assessment of females for possible autoimmune disease to facilitate timely detection and treatment.
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Affiliation(s)
- Natalie V Scime
- Department of Health and Society, University of Toronto Scarborough, Toronto, Ontario, Canada
- ICES, Toronto, Ontario, Canada
| | - Sonia M Grandi
- Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto, Ontario, Canada
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Joel G Ray
- ICES, Toronto, Ontario, Canada
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
- Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada
| | - Cindy-Lee Dennis
- Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada
- Lawrence S. Bloomberg Faculty of Nursing, University of Toronto, Toronto, Ontario, Canada
| | - Mary A De Vera
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia, Canada
- Collaboration for Outcomes Research and Evaluation, University of British Columbia, Vancouver, British Columbia, Canada
- Centre for Health Evaluation & Outcome Science, St. Paul's Hospital, Vancouver, British Columbia, Canada
| | - Hailey R Banack
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Simone N Vigod
- ICES, Toronto, Ontario, Canada
- Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
- Women's College Research Institute, Women's College Hospital, Toronto, Ontario, Canada
| | | | - Hilary K Brown
- Department of Health and Society, University of Toronto Scarborough, Toronto, Ontario, Canada
- ICES, Toronto, Ontario, Canada
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
- Women's College Research Institute, Women's College Hospital, Toronto, Ontario, Canada
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2
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Nardi E, Seidita I, Abati I, Donati C, Bernacchioni C, Castiglione F, Serena C, Mecacci F, Bloise E, Petraglia F. The placenta in fetal death: molecular evidence of dysregulation of inflammatory, proliferative, and fetal protective pathways. Am J Obstet Gynecol 2024:S0002-9378(24)00679-3. [PMID: 38908653 DOI: 10.1016/j.ajog.2024.06.011] [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: 07/12/2023] [Revised: 06/13/2024] [Accepted: 06/14/2024] [Indexed: 06/24/2024]
Abstract
BACKGROUND It is estimated that over 2 million cases of fetal death occur worldwide every year, but, despite the high incidence, several basic and clinical characteristics of this disorder are still unclear. Placenta is suggested to play a central role in fetal death. Placenta produces hormones, cytokines and growth factors that modulate functions of the placental-maternal unit. Fetal death has been correlated with impaired secretion of some of these regulatory factors. OBJECTIVE The aim of the present study was to evaluate, in placentas collected from fetal death, the gene expression of inflammatory, proliferative and protective factors. STUDY DESIGN Cases of fetal death in singleton pregnancy were retrospectively selected, excluding pregnancies complicated by fetal anomalies, gestational diabetes, intrauterine growth restriction and moderate to severe maternal diseases. A group of placentas collected from healthy singleton term pregnancies were used as controls. Groups were compared regarding maternal and gestational age, fetal sex and birthweight. Placental messenger RNA expression of inflammatory (interleukin 6), proliferative (activin A, transforming growth factor β1) and regulatory (vascular endothelial growth factor, vascular endothelial growth factor receptor 2, ATP-binding cassette transporters (ABC) ABCB1 and ABCG2, sphingosine 1-phosphate signaling pathway) markers was conducted using real-time polymerase chain reaction. Statistical analysis and graphical representation of the data were performed using the GraphPad Prism 5 software. For the statistical analysis, Student's t test was used, and P values<.05 were considered significant. RESULTS Placental mRNA expression of interleukin 6 and vascular endothelial growth factor receptor 2 resulted significantly higher in the fetal death group compared to controls (P<.01), while activin A, ABCB1, and ABCG2 expression resulted significantly lower (P<.01). A significant alteration in the sphingosine 1-phosphate signaling pathway was found in the fetal death group, with an increased expression of the specific receptor isoforms sphingosine 1-phosphate receptor 1, 3, and 4 (sphingosine 1-phosphate1, sphingosine 1-phosphate3, sphingosine 1-phosphate4) and of sphingosine kinase 2, 1 of the enzyme isoforms responsible for sphingosine 1-phosphate synthesis (P<.01). CONCLUSION The present study confirmed a significantly increased expression of placental interleukin 6 and vascular endothelial growth factor receptor 2 mRNA, and for the first time showed an increased expression of sphingosine 1-phosphate receptors and sphingosine kinase 2 as well as a decreased expression of activin A and of selected ATP-binding cassette transporters, suggesting that multiple inflammatory and protective factors are deranged in placenta of fetal death.
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Affiliation(s)
- Eleonora Nardi
- Pathology, Department of Health Science, University of Florence, Florence, Italy
| | - Isabelle Seidita
- Lipid Cell Signaling and Biology Lab, Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Isabella Abati
- Obstetrics and Gynecology, Department of Experimental, Clinical and Biomedical Sciences, Careggi University Hospital, University of Florence, Florence, Italy
| | - Chiara Donati
- Lipid Cell Signaling and Biology Lab, Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Caterina Bernacchioni
- Lipid Cell Signaling and Biology Lab, Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | | | - Caterina Serena
- Obstetrics and Gynecology, Department of Experimental, Clinical and Biomedical Sciences, Careggi University Hospital, University of Florence, Florence, Italy
| | - Federico Mecacci
- Obstetrics and Gynecology, Department of Experimental, Clinical and Biomedical Sciences, Careggi University Hospital, University of Florence, Florence, Italy
| | - Enrrico Bloise
- Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil; Department of Physiology, University of Toronto, Toronto, ON, Canada
| | - Felice Petraglia
- Obstetrics and Gynecology, Department of Experimental, Clinical and Biomedical Sciences, Careggi University Hospital, University of Florence, Florence, Italy.
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3
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Chen WH, Ku YL, Yang YH, Lee CP, Chen KJ, Ou YC, Lai YJ. Associations between the time interval from myomectomy to subsequent pregnancy and the obstetric outcomes: A population-based cohort study. Int J Gynaecol Obstet 2024. [PMID: 38801238 DOI: 10.1002/ijgo.15610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 04/21/2024] [Accepted: 04/30/2024] [Indexed: 05/29/2024]
Abstract
OBJECTIVE To investigate the associations between time interval from myomectomy to pregnancy (TIMP) and subsequent pregnancy and obstetric complications, and to explore whether these associations vary according to maternal age at birth. METHODS A retrospective population-based cohort study was conducted from 2008 to 2017. Data were extracted from the National Health Insurance Research Database and the Taiwan Maternal and Child Health Database, comprising 2024 379 births from 1 391 856 pregnancies. Eligible cases were identified using diagnostic and procedure codes; 4006 first singleton births in 4006 women after their first laparotomic myomectomy were identified. We estimated the risks of pregnancy and obstetric outcomes according to TIMP (<6, 6-11, and ≥12 months). Subgroup analysis was performed by further dividing according to maternal age at birth (18-34 vs ≥35 years old). RESULTS We observed higher risks of gestational hypertensive disorders (adjusted odds ratio [aOR] 1.97, 95% confidence interval [CI] 1.22-3.18, P = 0.005) and neonatal death (aOR 4.59, 95% CI 1.49-14.18, P = 0.008) for TIMP of <6 months versus TIMP of 6-11 months. Likewise, a TIMP ≥12 months was associated with increased risks of gestational hypertensive disorders (aOR 1.72, 95% CI 1.14-2.58, P = 0.010), and neonatal death (aOR 3.27, 95% CI 1.16-9.24, P = 0.025) versus a TIMP of 6-11 months. In subgroup analysis, women over 35 years old still had higher risks of gestational hypertensive disorders when TIMP was <6 months (aOR 2.26, 95% CI 1.17-4.37, P = 0.015) or ≥12 months (aOR 2.04, 95% CI 1.17-3.54, P = 0.012), and a higher risk of neonatal death when TIMP was <6 months (aOR 4.05, 95% CI 1.06-15.53, P = 0.041); whereas women aged 18-34 years old did not. CONCLUSIONS This study suggests that a TIMP between 6 and 11 months is associated with lower risks of gestational hypertensive disorders and neonatal death compared with a TIMP <6 months or ≥12 months, especially for women over 35 years old.
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Affiliation(s)
- Wen-Hsin Chen
- Department of Obstetrics and Gynecology, New Taipei Municipal TuCheng Hospital, New Taipei City, Taiwan
- Department of Obstetrics and Gynecology, Chiayi Chang Gung Memorial Hospital, Chiayi, Taiwan
| | - Yu-Lun Ku
- Department of Obstetrics and Gynecology, Chiayi Chang Gung Memorial Hospital, Chiayi, Taiwan
| | - Yao-Hsu Yang
- School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
- Department of Traditional Chinese Medicine, Chiayi Chang Gung Memorial Hospital, Chiayi, Taiwan
- Health Information and Epidemiology Laboratory, Chang Gung Memorial Hospital, Chiayi, Taiwan
| | - Chuan-Pin Lee
- Health Information and Epidemiology Laboratory, Chang Gung Memorial Hospital, Chiayi, Taiwan
| | - Ko-Jung Chen
- Health Information and Epidemiology Laboratory, Chang Gung Memorial Hospital, Chiayi, Taiwan
| | - Yu-Che Ou
- Department of Obstetrics and Gynecology, Chiayi Chang Gung Memorial Hospital, Chiayi, Taiwan
- Department of Obstetrics and Gynecology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Yun-Ju Lai
- Department of Obstetrics and Gynecology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
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4
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Xu M, Wang R, Du B, Zhang Y, Feng X. Association of acetaminophen use with perinatal outcomes among pregnant women: a retrospective cohort study with propensity score matching. BMC Pregnancy Childbirth 2024; 24:268. [PMID: 38605288 PMCID: PMC11010302 DOI: 10.1186/s12884-024-06480-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 04/03/2024] [Indexed: 04/13/2024] Open
Abstract
BACKGROUND Although acetaminophen is widely used in women during pregnancy, its safety has not been clearly stated. The study aimed to investigate the association between acetaminophen use and adverse pregnancy outcomes in pregnant women in China. METHODS We conducted a retrospective cohort study by collecting data on pregnant women who delivered in the Beijing Obstetrics and Gynecology Hospital from January 2018 to September 2023. An acetaminophen use group and a control group were formed based on prenatal exposure to acetaminophen. The pregnancy outcomes that we focused on were stillbirth, miscarriage, preterm birth, APGAR score, birth weight, and congenital disabilities. Pregnant women exposed to acetaminophen were matched to unexposed in a 1:1 ratio with propensity score matching, using the greedy matching macro. SPSS software was used for statistical analysis. Multivariable logistics regression was used to assess the association between acetaminophen use during pregnancy and adverse pregnancy outcomes. RESULTS A total of 41,440 pregnant women were included, of whom 501 were exposed to acetaminophen during pregnancy, and 40,939 were not exposed. After the propensity score matching, the acetaminophen use and control groups consisted of 501 pregnant women each. The primary analysis showed that acetaminophen exposure during pregnancy was associated with an increased risk of stillbirth (adjusted OR (aOR) = 2.29, 95% CI, 1.19-4.43), APGAR score < 7 at 1 min (aOR = 3.28, 95% CI, 1.73-6.21), APGAR score < 7 at 5 min (aOR = 3.54, 95% CI, 1.74-7.20), APGAR score < 7 at 10 min (aOR = 3.18, 95% CI, 1.58-6.41), and high birth weight (HBW) (aOR = 1.75, 95% CI, 1.05-2.92). Drug exposure during the first and second trimesters increased the odds of stillbirth, miscarriage, APGAR < 7, and the occurrence of at least one adverse pregnancy outcome. In addition, the frequency of drug use more than two times was associated with a higher risk of preterm birth and APGAR score < 7. CONCLUSIONS Exposure to acetaminophen during pregnancy was significantly associated with the occurrence of adverse pregnancy outcomes, particularly exposure in the first and second trimesters and frequency of use more than twice. It is suggested that acetaminophen should be prescribed with caution in pregnant women.
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Affiliation(s)
- Man Xu
- Department of Pharmacy, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, No.17, Qi He Lou Street, Dongcheng District, Beijing, 100010, China
- Department of Clinical Pharmacology, College of Pharmaceutical Sciences, Capital Medical University, Beijing, China
| | - Ran Wang
- Department of Pharmacy, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, No.17, Qi He Lou Street, Dongcheng District, Beijing, 100010, China
| | - Boran Du
- Department of Pharmacy, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, No.17, Qi He Lou Street, Dongcheng District, Beijing, 100010, China
| | - Ying Zhang
- Department of Pharmacy, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, No.17, Qi He Lou Street, Dongcheng District, Beijing, 100010, China
- Department of Clinical Pharmacology, College of Pharmaceutical Sciences, Capital Medical University, Beijing, China
| | - Xin Feng
- Department of Pharmacy, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, No.17, Qi He Lou Street, Dongcheng District, Beijing, 100010, China.
- Laboratory for Clinical Medicine, Capital Medical University, Beijing, China.
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5
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Smith GCS. Predicting and preventing stillbirth at term. Semin Perinatol 2024; 48:151869. [PMID: 38135621 DOI: 10.1016/j.semperi.2023.151869] [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] [Indexed: 12/24/2023]
Abstract
Stillbirth at term affects ∼1 per 1000 pregnancies at term in high income countries. A range of maternal characteristics are associated with stillbirth risk. However, given the low a priori risk of stillbirth, the vast majority of women with clinical risk factors would not experience a stillbirth in the absence of intervention. Stillbirth is the end point of multiple pathways, including both fetal growth restriction and fetal overgrowth. In most term stillbirths there is no mechanistic understanding of the cause of death and a sizeable proportion are completely unexplained. Term stillbirth is potentially preventable by early delivery, providing a rationale for screening. "Omic" analyses of blood taken prior to the onset of some of the conditions associated with stillbirth may help identify women at high risk and allow the potentially harmful intervention of early term medically indicated delivery to be targeted to the pregnancies most likely to benefit.
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Affiliation(s)
- Gordon C S Smith
- Department of Obstetrics and Gynaecology, University of Cambridge, NIHR Cambridge Biomedical Research Centre, Cambridge, CB2 0SW, UK.
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6
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Kalter HD, Koffi AK, Perin J, Kamwe MA, Black RE. Maternal interventions to decrease stillbirths and neonatal mortality in Tanzania: evidence from the 2017-18 cross-sectional Tanzania verbal and social autopsy study. BMC Pregnancy Childbirth 2023; 23:849. [PMID: 38082404 PMCID: PMC10714492 DOI: 10.1186/s12884-023-06099-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 10/31/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Reduction of Tanzania's neonatal mortality rate has lagged behind that for all under-fives, and perinatal mortality has remained stagnant over the past two decades. We conducted a national verbal and social autopsy (VASA) study to estimate the causes and social determinants of stillbirths and neonatal deaths with the aim of identifying relevant health care and social interventions. METHODS A VASA interview was conducted of all stillbirths and neonatal deaths in the prior 5 years identified by the 2015-16 Tanzania Demographic and Health Survey. We evaluated associations of maternal complications with antepartum and intrapartum stillbirth and leading causes of neonatal death; conducted descriptive analyses of antenatal (ANC) and delivery care and mothers' careseeking for complications; and developed logistic regression models to examine factors associated with delivery place and mode. RESULTS There were 204 stillbirths, with 185 able to be classified as antepartum (88 [47.5%]) or intrapartum (97 [52.5%]), and 228 neonatal deaths. Women with an intrapartum stillbirth were 6.5% (adjusted odds ratio (aOR) = 1.065, 95% confidence interval (CI) 1.002, 1.132) more likely to have a C-section for every additional hour before delivery after reaching the birth attendant. Antepartum hemorrhage (APH), maternal anemia, and premature rupture of membranes (PROM) were significantly positively associated with early neonatal mortality due to preterm delivery, intrapartum-related events and serious infection, respectively. While half to two-thirds of mothers made four or more ANC visits (ANC4+), a third or fewer received quality ANC (Q-ANC). Women with a complication were more likely to deliver at hospital only if they received Q-ANC (neonates: aOR = 4.5, 95% CI 1.6, 12.3) or ANC4+ (stillbirths: aOR = 11.8, 95% CI 3.6, 38.0). Nevertheless, urban residence was the strongest predictor of hospital delivery. CONCLUSIONS While Q-ANC and ANC4 + boosted hospital delivery among women with a complication, attendance was low and the quality of care is critical. Quality improvement efforts in urban and rural areas should focus on early detection and management of APH, maternal anemia, PROM, and prolonged labor, and on newborn resuscitation.
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Affiliation(s)
- Henry D Kalter
- Department of International Health, Institute for International Programs, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States of America.
| | - Alain K Koffi
- Department of International Health, Health Systems, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States of America
| | - Jamie Perin
- Department of International Health, Institute for International Programs, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States of America
| | - Mlemba A Kamwe
- National Bureau of Statistics, Dodoma, United Republic of Tanzania
| | - Robert E Black
- Department of International Health, Institute for International Programs, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States of America
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7
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Shea SK, Newman RB. Fetal Growth and Antenatal Testing in Uncomplicated Multiple Gestations. Clin Obstet Gynecol 2023; 66:864-883. [PMID: 37910097 DOI: 10.1097/grf.0000000000000815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
Multiple gestations experience a slowing of fetal growth in the third trimester and have been described as having a higher risk of growth restriction. Whether this increased diagnosis of fetal growth restriction is physiological or pathologic is controversial. In an attempt to better identify those fetuses most at risk, twin-specific growth charts have been developed and tested. In addition, there are data to suggest that multiple gestations experience an increased risk of unexpected third-trimester stillbirth in apparently uncomplicated pregnancies. This chapter reviews the current data and recommendations for fetal growth assessment, antenatal surveillance, and delivery timing in uncomplicated multiple gestations.
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Affiliation(s)
- Sarah K Shea
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, The Medical University of South Carolina, Charleston, South Carolina
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8
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Gallo DM, Fitzgerald W, Romero R, Gomez-Lopez N, Gudicha DW, Than NG, Bosco M, Chaiworapongsa T, Jung E, Meyyazhagan A, Suksai M, Gotsch F, Erez O, Tarca AL, Margolis L. Proteomic profile of extracellular vesicles in maternal plasma of women with fetal death. J Matern Fetal Neonatal Med 2023; 36:2177529. [PMID: 36813269 PMCID: PMC10395052 DOI: 10.1080/14767058.2023.2177529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
OBJECTIVES Fetal death is a complication of pregnancy caused by multiple etiologies rather than being the end-result of a single disease process. Many soluble analytes in the maternal circulation, such as hormones and cytokines, have been implicated in its pathophysiology. However, changes in the protein content of extracellular vesicles (EVs), which could provide additional insight into the disease pathways of this obstetrical syndrome, have not been examined. This study aimed to characterize the proteomic profile of EVs in the plasma of pregnant women who experienced fetal death and to evaluate whether such a profile reflected the pathophysiological mechanisms of this obstetrical complication. Moreover, the proteomic results were compared to and integrated with those obtained from the soluble fraction of maternal plasma. METHODS This retrospective case-control study included 47 women who experienced fetal death and 94 matched, healthy, pregnant controls. Proteomic analysis of 82 proteins in the EVs and the soluble fractions of maternal plasma samples was conducted by using a bead-based, multiplexed immunoassay platform. Quantile regression analysis and random forest models were implemented to assess differences in the concentration of proteins in the EV and soluble fractions and to evaluate their combined discriminatory power between clinical groups. Hierarchical cluster analysis was applied to identify subgroups of fetal death cases with similar proteomic profiles. A p-value of <.05 was used to infer significance, unless multiple testing was involved, with the false discovery rate controlled at the 10% level (q < 0.1). All statistical analyses were performed by using the R statistical language and environment-and specialized packages. RESULTS Nineteen proteins (placental growth factor, macrophage migration inhibitory factor, endoglin, regulated upon activation normal T cell expressed and presumably secreted (RANTES), interleukin (IL)-6, macrophage inflammatory protein 1-alpha, urokinase plasminogen activator surface receptor, tissue factor pathway inhibitor, IL-8, E-Selectin, vascular endothelial growth factor receptor 2, pentraxin 3, IL-16, galectin-1, monocyte chemotactic protein 1, disintegrin and metalloproteinase domain-containing protein 12, insulin-like growth factor-binding protein 1, matrix metalloproteinase-1(MMP1), and CD163) were found to have different plasma concentrations (of an EV or a soluble fraction) in women with fetal death compared to controls. There was a similar pattern of change for the dysregulated proteins in the EV and soluble fractions and a positive correlation between the log2-fold changes of proteins significant in either the EV or the soluble fraction (ρ = 0.89, p < .001). The combination of EV and soluble fraction proteins resulted in a good discriminatory model (area under the ROC curve, 82%; sensitivity, 57.5% at a 10% false-positive rate). Unsupervised clustering based on the proteins differentially expressed in either the EV or the soluble fraction of patients with fetal death relative to controls revealed three major clusters of patients. CONCLUSION Pregnant women with fetal death have different concentrations of 19 proteins in the EV and soluble fractions compared to controls, and the direction of changes in concentration was similar between fractions. The combination of EV and soluble protein concentrations revealed three different clusters of fetal death cases with distinct clinical and placental histopathological characteristics.
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Affiliation(s)
- Dahiana M Gallo
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Detroit, MI, USA.,Division of Intramural Research, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA.,Department of Obstetrics and Gynecology, Universidad Del Valle, Cali, Colombia
| | - Wendy Fitzgerald
- Section on Intercellular Interactions, National Institutes of Health, Bethesda, MD, USA
| | - Roberto Romero
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Detroit, MI, USA.,Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI, USA.,Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, MI, USA.,Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI, USA.,Detroit Medical Center, Detroit, MI, USA
| | - Nardhy Gomez-Lopez
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Detroit, MI, USA.,Division of Intramural Research, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA.,Department of Biochemistry, Microbiology and Immunology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Dereje W Gudicha
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Detroit, MI, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Nándor Gábor Than
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Detroit, MI, USA.,Systems, Biology of Reproduction Research Group, Institute of Enzymology, Research Centre for Natural Sciences, Budapest, Hungary.,Department of Obstetrics and Gynecology, Semmelweis University, Budapest, Hungary.,Maternity Private Clinic of Obstetrics and Gynecology, Budapest, Hungary
| | - Mariachiara Bosco
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Detroit, MI, USA.,Division of Intramural Research, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Tinnakorn Chaiworapongsa
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Detroit, MI, USA.,Division of Intramural Research, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Eunjung Jung
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Detroit, MI, USA.,Division of Intramural Research, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Arun Meyyazhagan
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Detroit, MI, USA.,Division of Intramural Research, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Manaphat Suksai
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Detroit, MI, USA.,Division of Intramural Research, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Francesca Gotsch
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Detroit, MI, USA.,Division of Intramural Research, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, USA.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Offer Erez
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Detroit, MI, USA.,Division of Intramural Research, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, USA.,Department of Obstetrics and Gynecology, HaEmek Medical Center, Afula, Israel
| | - Adi L Tarca
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Detroit, MI, USA.,Division of Intramural Research, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, USA.,Department of Computer Science, Wayne State University College of Engineering, Detroit, MI, USA
| | - Leonid Margolis
- Section on Intercellular Interactions, National Institutes of Health, Bethesda, MD, USA
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9
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Hromadnikova I, Kotlabova K, Krofta L. First-Trimester Screening for Miscarriage or Stillbirth-Prediction Model Based on MicroRNA Biomarkers. Int J Mol Sci 2023; 24:10137. [PMID: 37373283 DOI: 10.3390/ijms241210137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 06/13/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023] Open
Abstract
We evaluated the potential of cardiovascular-disease-associated microRNAs to predict in the early stages of gestation (from 10 to 13 gestational weeks) the occurrence of a miscarriage or stillbirth. The gene expressions of 29 microRNAs were studied retrospectively in peripheral venous blood samples derived from singleton Caucasian pregnancies diagnosed with miscarriage (n = 77 cases; early onset, n = 43 cases; late onset, n = 34 cases) or stillbirth (n = 24 cases; early onset, n = 13 cases; late onset, n = 8 cases; term onset, n = 3 cases) and 80 selected gestational-age-matched controls (normal term pregnancies) using real-time RT-PCR. Altered expressions of nine microRNAs (upregulation of miR-1-3p, miR-16-5p, miR-17-5p, miR-26a-5p, miR-146a-5p, and miR-181a-5p and downregulation of miR-130b-3p, miR-342-3p, and miR-574-3p) were observed in pregnancies with the occurrence of a miscarriage or stillbirth. The screening based on the combination of these nine microRNA biomarkers revealed 99.01% cases at a 10.0% false positive rate (FPR). The predictive model for miscarriage only was based on the altered gene expressions of eight microRNA biomarkers (upregulation of miR-1-3p, miR-16-5p, miR-17-5p, miR-26a-5p, miR-146a-5p, and miR-181a-5p and downregulation of miR-130b-3p and miR-195-5p). It was able to identify 80.52% cases at a 10.0% FPR. Highly efficient early identification of later occurrences of stillbirth was achieved via the combination of eleven microRNA biomarkers (upregulation of miR-1-3p, miR-16-5p, miR-17-5p, miR-20a-5p, miR-146a-5p, and miR-181a-5p and downregulation of miR-130b-3p, miR-145-5p, miR-210-3p, miR-342-3p, and miR-574-3p) or, alternatively, by the combination of just two upregulated microRNA biomarkers (miR-1-3p and miR-181a-5p). The predictive power achieved 95.83% cases at a 10.0% FPR and, alternatively, 91.67% cases at a 10.0% FPR. The models based on the combination of selected cardiovascular-disease-associated microRNAs had very high predictive potential for miscarriages or stillbirths and may be implemented in routine first-trimester screening programs.
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Affiliation(s)
- Ilona Hromadnikova
- Department of Molecular Biology and Cell Pathology, Third Faculty of Medicine, Charles University, 14700 Prague, Czech Republic
| | - Katerina Kotlabova
- Department of Molecular Biology and Cell Pathology, Third Faculty of Medicine, Charles University, 14700 Prague, Czech Republic
| | - Ladislav Krofta
- Institute for the Care of the Mother and Child, Third Faculty of Medicine, Charles University, 14700 Prague, Czech Republic
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10
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Thompson RA, Thompson JMD, Wilson J, Cronin RS, Mitchell EA, Raynes-Greenow CH, Li M, Stacey T, Heazell AEP, O'Brien LM, McCowan LME, Anderson NH. Risk factors for late preterm and term stillbirth: A secondary analysis of an individual participant data meta-analysis. BJOG 2023. [PMID: 36852504 DOI: 10.1111/1471-0528.17444] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 12/14/2022] [Accepted: 01/09/2023] [Indexed: 03/01/2023]
Abstract
OBJECTIVE Identify independent and novel risk factors for late-preterm (28-36 weeks) and term (≥37 weeks) stillbirth and explore development of a risk-prediction model. DESIGN Secondary analysis of an Individual Participant Data (IPD) meta-analysis investigating modifiable stillbirth risk factors. SETTING An IPD database from five case-control studies in New Zealand, Australia, the UK and an international online study. POPULATION Women with late-stillbirth (cases, n = 851), and ongoing singleton pregnancies from 28 weeks' gestation (controls, n = 2257). METHODS Established and novel risk factors for late-preterm and term stillbirth underwent univariable and multivariable logistic regression modelling with multiple sensitivity analyses. Variables included maternal age, body mass index (BMI), parity, mental health, cigarette smoking, second-hand smoking, antenatal-care utilisation, and detailed fetal movement and sleep variables. MAIN OUTCOME MEASURES Independent risk factors with adjusted odds ratios (aOR) for late-preterm and term stillbirth. RESULTS After model building, 575 late-stillbirth cases and 1541 controls from three contributing case-control studies were included. Risk factor estimates from separate multivariable models of late-preterm and term stillbirth were compared. As these were similar, the final model combined all late-stillbirths. The single multivariable model confirmed established demographic risk factors, but additionally showed that fetal movement changes had both increased (decreased frequency) and reduced (hiccoughs, increasing strength, frequency or vigorous fetal movements) aOR of stillbirth. Poor antenatal-care utilisation increased risk while more-than-adequate care was protective. The area-under-the-curve was 0.84 (95% CI 0.82-0.86). CONCLUSIONS Similarities in risk factors for late-preterm and term stillbirth suggest the same approach for risk-assessment can be applied. Detailed fetal movement assessment and inclusion of antenatal-care utilisation could be valuable in late-stillbirth risk assessment.
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Affiliation(s)
- R A Thompson
- Department of Obstetrics and Gynaecology, Faculty of Medical and Health Science, The University of Auckland, Auckland, New Zealand
| | - J M D Thompson
- Department of Obstetrics and Gynaecology, Faculty of Medical and Health Science, The University of Auckland, Auckland, New Zealand
- Department of Paediatrics: Child and Youth Health, Faculty of Medical and Health Science, The University of Auckland, Auckland, New Zealand
| | - J Wilson
- Department of Obstetrics and Gynaecology, Faculty of Medical and Health Science, The University of Auckland, Auckland, New Zealand
- Department of Paediatrics: Child and Youth Health, Faculty of Medical and Health Science, The University of Auckland, Auckland, New Zealand
| | - R S Cronin
- Department of Obstetrics and Gynaecology, Faculty of Medical and Health Science, The University of Auckland, Auckland, New Zealand
- Women's Health Division, Counties Manukau Health, Auckland, New Zealand
| | - E A Mitchell
- Department of Obstetrics and Gynaecology, Faculty of Medical and Health Science, The University of Auckland, Auckland, New Zealand
- Department of Paediatrics: Child and Youth Health, Faculty of Medical and Health Science, The University of Auckland, Auckland, New Zealand
| | - C H Raynes-Greenow
- Sydney School of Public Health, University of Sydney, Camperdown, New South Wales, Australia
| | - M Li
- Department of Obstetrics and Gynaecology, Faculty of Medical and Health Science, The University of Auckland, Auckland, New Zealand
- Women's Health Division, Counties Manukau Health, Auckland, New Zealand
| | - T Stacey
- Florence Nightingale Faculty of Nursing, Midwifery & Palliative Care, King's College London, London, UK
| | - A E P Heazell
- University of Manchester, Manchester, UK
- University of Michigan, Ann Arbor, Michigan, USA
| | - L M O'Brien
- University of Michigan, Ann Arbor, Michigan, USA
| | - L M E McCowan
- Department of Obstetrics and Gynaecology, Faculty of Medical and Health Science, The University of Auckland, Auckland, New Zealand
| | - N H Anderson
- Department of Obstetrics and Gynaecology, Faculty of Medical and Health Science, The University of Auckland, Auckland, New Zealand
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11
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Luo M, Liu T, Ma C, Fang J, Zhao Z, Wen Y, Xia Y, Zhao Y, Ji C. Household polluting cooking fuels and adverse birth outcomes: An updated systematic review and meta-analysis. Front Public Health 2023; 11:978556. [PMID: 36935726 PMCID: PMC10020710 DOI: 10.3389/fpubh.2023.978556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Accepted: 02/06/2023] [Indexed: 03/06/2023] Open
Abstract
Background and aim The current study aimed to clarify the association between household polluting cooking fuels and adverse birth outcomes using previously published articles. Methods In this systematic review and meta-analysis, a systematic literature search in PubMed, Embase, Web of Science, and Scopus databases were undertaken for relevant studies that had been published from inception to 16 January 2023. We calculated the overall odds ratio (OR) and 95% confidence interval (CI) for adverse birth outcomes [low birth weight (LBW), small for gestational age (SGA), stillbirth, and preterm birth (PTB)] associated with polluting cooking fuels (biomass, coal, and kerosene). Subgroup analysis and meta-regression were also conducted. Results We included 16 cross-sectional, five case-control, and 11 cohort studies in the review. Polluting cooking fuels were found to be associated with LBW (OR: 1.37, 95% CI: 1.24, 1.52), SGA (OR: 1.48, 95% CI: 1.13, 1.94), stillbirth (OR: 1.38, 95% CI: 1.23, 1.55), and PTB (OR: 1.27, 95% CI: 1.19, 1.36). The results of most of the subgroup analyses were consistent with the main results. In the meta-regression of LBW, study design (cohort study: P < 0.01; cross-sectional study: P < 0.01) and sample size (≥ 1000: P < 0.01) were the covariates associated with heterogeneity. Cooking fuel types (mixed fuel: P < 0.05) were the potentially heterogeneous source in the SGA analysis. Conclusion The use of household polluting cooking fuels could be associated with LBW, SGA, stillbirth, and PTB. The limited literature, observational study design, exposure and outcome assessment, and residual confounding suggest that further strong epidemiological evidence with improved and standardized data was required to assess health risks from particular fuels and technologies utilized.
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Affiliation(s)
- Mengrui Luo
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Tiancong Liu
- Department of Otorhinolaryngology - Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang, China
| | - Changcheng Ma
- Department of Clinical Laboratory, Shengjing Hospital of China Medical University, Shenyang, China
| | - Jianwei Fang
- Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
| | - Zhiying Zhao
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China
- Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yu Wen
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yang Xia
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China
- Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yuhong Zhao
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China
- Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
- *Correspondence: Yuhong Zhao
| | - Chao Ji
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China
- Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
- Chao Ji
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12
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Malaza N, Masete M, Adam S, Dias S, Nyawo T, Pheiffer C. A Systematic Review to Compare Adverse Pregnancy Outcomes in Women with Pregestational Diabetes and Gestational Diabetes. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph191710846. [PMID: 36078559 PMCID: PMC9517767 DOI: 10.3390/ijerph191710846] [Citation(s) in RCA: 50] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 08/15/2022] [Accepted: 08/22/2022] [Indexed: 05/14/2023]
Abstract
Pregestational type 1 (T1DM) and type 2 (T2DM) diabetes mellitus and gestational diabetes mellitus (GDM) are associated with increased rates of adverse maternal and neonatal outcomes. Adverse outcomes are more common in women with pregestational diabetes compared to GDM; although, conflicting results have been reported. This systematic review aims to summarise and synthesise studies that have compared adverse pregnancy outcomes in pregnancies complicated by pregestational diabetes and GDM. Three databases, Pubmed, EBSCOhost and Scopus were searched to identify studies that compared adverse outcomes in pregnancies complicated by pregestational T1DM and T2DM, and GDM. A total of 20 studies met the inclusion criteria and are included in this systematic review. Thirteen pregnancy outcomes including caesarean section, preterm birth, congenital anomalies, pre-eclampsia, neonatal hypoglycaemia, macrosomia, neonatal intensive care unit admission, stillbirth, Apgar score, large for gestational age, induction of labour, respiratory distress syndrome and miscarriages were compared. Findings from this review confirm that pregestational diabetes is associated with more frequent pregnancy complications than GDM. Taken together, this review highlights the risks posed by all types of maternal diabetes and the need to improve care and educate women on the importance of maintaining optimal glycaemic control to mitigate these risks.
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Affiliation(s)
- Nompumelelo Malaza
- Biomedical Research and Innovation Platform (BRIP), South African Medical Research Council, Tygerberg, Cape Town 7505, South Africa
- Department of Obstetrics and Gynaecology, Faculty of Health Sciences, University of Pretoria, Pretoria 0001, South Africa
| | - Matladi Masete
- Biomedical Research and Innovation Platform (BRIP), South African Medical Research Council, Tygerberg, Cape Town 7505, South Africa
- Department of Obstetrics and Gynaecology, Faculty of Health Sciences, University of Pretoria, Pretoria 0001, South Africa
| | - Sumaiya Adam
- Department of Obstetrics and Gynaecology, Faculty of Health Sciences, University of Pretoria, Pretoria 0001, South Africa
- Diabetes Research Centre, Faculty of Health Sciences, University of Pretoria, Pretoria 0001, South Africa
| | - Stephanie Dias
- Biomedical Research and Innovation Platform (BRIP), South African Medical Research Council, Tygerberg, Cape Town 7505, South Africa
| | - Thembeka Nyawo
- Biomedical Research and Innovation Platform (BRIP), South African Medical Research Council, Tygerberg, Cape Town 7505, South Africa
- Centre for Cardio-Metabolic Research in Africa, Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, Cape Town 7505, South Africa
| | - Carmen Pheiffer
- Biomedical Research and Innovation Platform (BRIP), South African Medical Research Council, Tygerberg, Cape Town 7505, South Africa
- Department of Obstetrics and Gynaecology, Faculty of Health Sciences, University of Pretoria, Pretoria 0001, South Africa
- Centre for Cardio-Metabolic Research in Africa, Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, Cape Town 7505, South Africa
- Correspondence:
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13
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Tokareva M, Brown JA, MacPhee DJ, Seddon YM. Providing periodic exercise to stall-housed gestating sows influences only the total number of live-born piglets in older parity sows. CANADIAN JOURNAL OF ANIMAL SCIENCE 2022. [DOI: 10.1139/cjas-2021-0087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The 2014 Canadian Pig Code of Practice includes a recommendation to provide stall-housed gestating pigs with periodic exercise. The objective of this study was to evaluate the effects of periodic exercise on sow performance and placental and piglet characteristics. Sows ( n = 180) were assigned to one of three gestation treatments: stall-housed sows (Control: C), stall-housed sows given weekly exercise (Exercise: E—10 min of walking per week), and group-housed sows (Group: G). Sows were distributed among three parity groups: young (parity 0–1), mid (parity 2–4), and old (parity 5–7). Old C sows had a higher number of total born than G sows, and E sows were intermediate; mid G sows had a higher total born than E and C sows ( P = 0.023). Old E and G sows had similar numbers of total live-born piglets, which were higher than in old C sows ( P = 0.033). Periodic exercise did not influence placental and piglet characteristics in the current study. In conclusion, periodic exercise benefited only the reproductive performance of older parity sows, increasing the number of live-born piglets in E and G sows compared to C sows.
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Affiliation(s)
- Mariia Tokareva
- Department of Large Animal Clinical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, 52 Campus Drive, Saskatoon, SK S7N 5B4, Canada
| | - Jennifer A. Brown
- Prairie Swine Centre Inc., Box 21057, 2105 8th Street East, Saskatoon, SK S7H 5N9, Canada
| | - Daniel J. MacPhee
- Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, 52 Campus Drive, Saskatoon, SK S7N 5B4, Canada
| | - Yolande M. Seddon
- Department of Large Animal Clinical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, 52 Campus Drive, Saskatoon, SK S7N 5B4, Canada
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14
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The Importance of Post-Mortem Investigations in Stillbirths: Case Studies and a Review of the Literature. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19148817. [PMID: 35886672 PMCID: PMC9318112 DOI: 10.3390/ijerph19148817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/07/2022] [Accepted: 07/13/2022] [Indexed: 11/17/2022]
Abstract
Stillbirth has an important economic and social impact, though it remains “inexplicable” in many cases. We report the analysis of 11 cases of intrauterine fetal death carried out through a retrospective study conducted in the period between 2014 and 2017. The purpose of the study is to quantify the contribution of the autopsy and placental examination in identifying the cause of stillbirths. For each case, the medical record was analyzed with the relative maternal and partner data, the results of the external fetal and autopsy examination as well as the macroscopic and histological placental examination. The peak of stillbirth was found in a maternal age group between 30 and 39 years, below the 32nd week and above the 37th week of gestation. The results obtained from the clinical history and external fetal examination make it possible to trace the cause of death in only 18.2% of cases. By adding to these data, the results of the fetal autopsy and the placental examination, it is possible to establish the cause of death in 90.9% of cases. The most frequent abnormalities found in the placenta and cord were short or hypercoiled cord, umbilical cord vascular thrombosis, turns around the neck or stretching of the funiculus, placental infarction and placental insufficiency; also, amniotic fluid abnormalities, such as suspected oligohydramnios and chorioamniositi, were found. The accurate analysis of post-mortem placental and fetal examination is essential to reduce the number of unresponsive intrauterine fetal deaths. Determining the cause of fetal death must help clinicians and parents in better management and care in future pregnancies.
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15
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Hsiao CH, Chen CH, Chang YF, Tsauer JC, Chou WS. Retrospective analysis of stillbirth and induced termination of pregnancies: Factors affecting determination. Taiwan J Obstet Gynecol 2022; 61:626-629. [PMID: 35779911 DOI: 10.1016/j.tjog.2022.05.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/10/2022] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVE The aim of this study was to identify the factors and frequencies of induced termination of pregnancies. MATERIALS AND METHODS This is a retrospective study of 488 terminations of pregnancies (TOPs) between January 2011 and December 2021 to demonstrate the factors affecting the decision to terminate the pregnancy. All cases had been hospitalized to manage the induction of labor. Methods included serial multiple laminaria dilation of the cervix and administration of a cervical misoprostol suppository. After induction of labor, the subject may experience amniotomy, instrumental evacuation of the uterus, and even hysterotomy. Pre-procedure counseling included an agreement to share medical records (paper-based and electronic). We verified the indications for all patients seeking TOPs. All cases were performed according to known diagnostic classifications and divided into seven groups for analysis. RESULTS The patient ages ranged from 12 to 46 years. The median maternal age was 34 years [interquartile range (IQR) 30, 37]; 52.2% had at least one prior delivery. The pre-procedure diagnosis was divided into seven groups including the following: chromosomal and genetic abnormalities (146/488, 29.9%), no intrauterine heartbeats (126/488, 25.8%), structural anomalies (84/488, 17.2%), elective termination (56/488, 11.5%), preterm premature rupture of membranes (PPROM) (42/488, 8.6%), cervical incompetence (32/488, 6.6%), and other conditions (2/488, 0.4%). After excluding elective terminations, the eleven-year rate of fetal death and stillbirth to births did not show significant changes from 2011 to 2021. CONCLUSIONS Knowing the factors underlying the decision to induce intrauterine fetal death (IUFD) including reasons for objecting to pregnancy are important for obstetricians-they can offer better planning and medical counseling. It is important to educate all women about family planning to prevent large numbers of unwanted and unsafe pregnancy terminations.
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Affiliation(s)
- Ching Hua Hsiao
- Department of Obstetrics and Gynecology, Taipei City Hospital, Women and Children Campus, Taiwan; Department of Biomedical Engineering, National Yang Ming Chiao Tung University, Taiwan.
| | - Ching Hsuan Chen
- Department of Obstetrics and Gynecology, Taipei City Hospital, Women and Children Campus, Taiwan
| | - Yi Fen Chang
- Department of Obstetrics and Gynecology, Taipei City Hospital, Women and Children Campus, Taiwan
| | - Ju Chin Tsauer
- Department of Obstetrics and Gynecology, Taipei City Hospital, Women and Children Campus, Taiwan
| | - Wei Shin Chou
- Department of Obstetrics and Gynecology, Taipei City Hospital, Women and Children Campus, Taiwan
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16
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Tan KH, Dai F, Ng MJ, Tan PL, Yeo SH, Chern B. Epidemiology of stillbirths based on different gestational thresholds at a tertiary hospital. Singapore Med J 2022; 63:307-312. [PMID: 36043307 PMCID: PMC9329547 DOI: 10.11622/smedj.2020173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
INTRODUCTION The stillbirth rate (SBR) is an important public health indicator. We studied the distribution of maternal and fetal characteristics and time trends of the SBR at KK Women's and Children's Hospital (KKH), Singapore, from 2004 to 2016 based on various definitions of stillbirth. METHODS Data was obtained from the Data Warehouse and Stillbirth Reporting System of KKH from 2004 to 2016. SBRs were calculated based on three definitions (fetal deaths at ≥ 20 weeks, 24 weeks or 28 weeks of gestation per 1,000 total births) and were described with maternal and fetal characteristics, and by year. RESULTS From 2004 to 2016, the SBR declined by 44.7%, 25.5% and 18.9% based on Definitions I, II and III, respectively. The SBR at KKH in 2016 was 5.2 (Definition I), 4.1 (Definition II) and 3.0 (Definition III) per 1,000 total births. The SBR was significantly higher in women aged ≥ 35 years, nulliparas and female fetuses. The number of live births at 24-27+6 weeks of gestation was more than four times higher than that of stillbirths (822 vs. 176). There were 104 (12.7%) neonatal deaths during this gestation period, giving a high survival rate of 87.3%. CONCLUSION The SBR in KKH is relatively lower than that in other developed countries. There is a need to consider revising our hospital and national definitions of the stillbirth lower boundary from 28 weeks to 24 weeks of gestation. This would allow us to make better comparisons with other developed countries, in line with improvements in healthcare.
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Affiliation(s)
- Kok Hian Tan
- Department of Maternal Fetal Medicine, KK Women’s and Children’s Hospital, Singapore
| | - Fei Dai
- Division of Obstetrics and Gynaecology, KK Women’s and Children’s Hospital, Singapore
| | - Mor Jack Ng
- Division of Obstetrics and Gynaecology, KK Women’s and Children’s Hospital, Singapore
| | - Pih Lin Tan
- Department of Neonatology, KK Women’s and Children’s Hospital, Singapore
| | - Seow Heong Yeo
- Department of Maternal Fetal Medicine, KK Women’s and Children’s Hospital, Singapore
| | - Bernard Chern
- Division of Obstetrics and Gynaecology, KK Women’s and Children’s Hospital, Singapore
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17
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Hiersch L, Barrett J, Fox NS, Rebarber A, Kingdom J, Melamed N. Should twin-specific growth charts be used to assess fetal growth in twin pregnancies? Am J Obstet Gynecol 2022; 227:10-28. [PMID: 35114185 DOI: 10.1016/j.ajog.2022.01.027] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 01/24/2022] [Accepted: 01/24/2022] [Indexed: 11/17/2022]
Abstract
One of the hallmarks of twin pregnancies is the slower rate of fetal growth when compared with singleton pregnancies during the third trimester. The mechanisms underlying this phenomenon and whether it represents pathology or benign physiological adaptation are currently unclear. One important implication of these questions relates to the type growth charts that should be used by care providers to monitor growth of twin fetuses. If the slower growth represents pathology (ie, intrauterine growth restriction caused uteroplacental insufficiency), it would be preferable to use a singleton growth chart to identify a small twin fetus that is at risk for perinatal mortality and morbidity. If, however, the relative smallness of twins is the result of benign adaptive mechanisms, it is likely preferable to use a twin-based charts to avoid overdiagnosis of intrauterine growth restriction in twin pregnancies. In the current review, we addressed this question by describing the differences in fetal growth between twin and singleton pregnancies, reviewing the current knowledge regarding the mechanisms responsible for slower fetal growth in twins, summarizing available empirical evidence on the diagnostic accuracy of the 2 types of charts for intrauterine growth restriction in twin pregnancies, and addressing the question of whether uncomplicated dichorionic twins are at an increased risk for fetal death when compared with singleton fetuses. We identified a growing body of evidence that shows that the use of twin charts can reduce the proportion of twin fetuses identified with suspected intrauterine growth restriction by up to 8-fold and can lead to a diagnosis of intrauterine growth restriction that is more strongly associated with adverse perinatal outcomes and hypertensive disorders than a diagnosis of intrauterine growth restriction based on a singleton-based chart without compromising the detection of twin fetuses at risk for adverse outcomes caused by uteroplacental insufficiency. We further found that small for gestational age twins are less likely to experience adverse perinatal outcomes or to have evidence of uteroplacental insufficiency than small for gestational age singletons and that recent data question the longstanding view that uncomplicated dichorionic twins are at an increased risk for fetal death caused by placental insufficiency. Overall, it seems that, based on existing evidence, the of use twin charts is reasonable and may be preferred over the use of singleton charts when monitoring the growth of twin fetuses. Still, it is important to note that the available data have considerable limitations and are primarily derived from observational studies. Therefore, adequately-powered trials are likely needed to confirm the benefit of twin charts before their use is adopted by professional societies.
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Affiliation(s)
- Liran Hiersch
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada; Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Lis Maternity Hospital, Sourasky Medical Center and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Jon Barrett
- Department of Obstetrics and Gynecology, McMaster University, Hamilton, Ontario, Canada
| | - Nathan S Fox
- Icahn School of Medicine at Mount Sinai, New York, NY; Maternal Fetal Medicine Associates, PLLC, New York, NY
| | - Andrei Rebarber
- Icahn School of Medicine at Mount Sinai, New York, NY; Maternal Fetal Medicine Associates, PLLC, New York, NY
| | - John Kingdom
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Mount Sinai Hospital, Toronto, Ontario, Canada; Department of Obstetrics and Gynecology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Nir Melamed
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada; Department of Obstetrics and Gynecology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.
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Wu SW, Zhang WY. Effects of Modes and Timings of Delivery on Feto-Maternal Outcomes in Women with Severe Preeclampsia: A Multi-Center Survey in Mainland China. Int J Gen Med 2021; 14:9681-9687. [PMID: 34934345 PMCID: PMC8684395 DOI: 10.2147/ijgm.s335893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 11/04/2021] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Pregnancy termination is the only effective treatment for preeclampsia. However, there are controversies on the selection of modes of delivery. The objective was to evaluate whether mode of delivery in labor differentially affected the rate of adverse maternal outcomes related to severe preeclampsia. OBJECTIVE This study aimed to evaluate whether the modes and timings of delivery affects adverse maternal outcomes in pre-eclampsia. METHODS Clinical data from 2516 singleton pregnant women with severe preeclampsia were collected in a multicenter, large-sample, cross-sectional study in mainland China. The patients were divided into cesarean-delivery (CD) and vaginal-delivery (VD) categories and then into Group 1 (≤27+ 6 weeks), Group 2 (28-33+ 6 weeks), Group 3 (34-36+ 6 weeks), and Group 4 (≥37 weeks) according to the mode of delivery and gestational weeks. All data were exported into the SPSS software and analyzed by the Student's t-tests or Mann-Whitney U-tests and the chi-squared test. RESULTS A total of 2516 singleton pregnant women with severe preeclampsia were collected and the overall cesarean section rate was 84.9%. The vaginal delivery rates among the four groups were significantly different with 70%, 19.7%, 6.6%, 15.1% in groups 1, 2, 3, 4, respectively (P<0.05), while perinatal mortality was lower in the CD groups than VD groups (3.3% vs 50.4%, P<0.05). The neonatal asphyxia rate was significantly higher with CD than with VD in Group 2 (36.4% vs 12.9%, P<0.05). The perinatal mortality with CD, 3, and 4 was significantly lower than with VD (10.0% vs 68.5% in Groups 2, 2.3% vs 28.3% in Groups 3, 0.8% vs 5.6% in Groups 4, all P<0.05). CONCLUSION Most pregnant women with severe preeclampsia opted for a cesarean section in China. The lower perinatal mortality was associated with cesarean section, but the rate of maternal PPH or mortality was not related with the mode of delivery. So cesarean section is the safer delivery mode for the pregnant women complicated with severe preeclampsia.
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Affiliation(s)
- Shao-Wen Wu
- Department of Perinatal Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Wei-Yuan Zhang
- Department of Perinatal Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, People’s Republic of China
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19
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Kinge JM, Grytten J. The impact of primary care physician density on perinatal health: Evidence from a natural experiment. HEALTH ECONOMICS 2021; 30:2974-2994. [PMID: 34498332 DOI: 10.1002/hec.4426] [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: 02/14/2021] [Revised: 06/25/2021] [Accepted: 08/24/2021] [Indexed: 06/13/2023]
Abstract
We examined the impact of primary care physician density on perinatal health outcomes in Norway. From 1992 and onwards, primary care physicians who chose to work in selected remote municipalities were given an annual reduction in their student loan. This reduction, combined with increased supply of physicians, led to an increase in the density of primary care physicians in these selected municipalities. Our register-based population study showed that this increase in physician density significantly improved perinatal health in terms of fewer fetal deaths and increased birth weight. The richness of the data allowed us to perform several robustness tests.
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Affiliation(s)
- Jonas Minet Kinge
- Norwegian Institute of Public Health and University of Oslo, Oslo, Norway
| | - Jostein Grytten
- University of Oslo, Norway and Akershus University Hospital, Lørenskog, Norway
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20
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Valgeirsdottir H, Kunovac Kallak T, Sundström Poromaa I, Jonsson M, Roos N, Lindström L, Wikström AK. Polycystic ovary syndrome and risk of stillbirth: a nationwide register-based study. BJOG 2021; 128:2073-2082. [PMID: 34455684 DOI: 10.1111/1471-0528.16890] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/15/2021] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To investigate whether polycystic ovary syndrome (PCOS) is associated with increased risk of stillbirth and whether any such association is linked to PCOS with a severe hyperandrogenic profile. DESIGN Nationwide register-based cohort study. SETTING Sweden. POPULATION The cohort consisted of women giving birth to singleton infants in 1997-2015. All women with a diagnosis of PCOS in the period 1997-2017 and a randomly selected reference group of women without PCOS diagnosis were included. PCOS with a severe hyperandrogenic profile was defined as a PCOS diagnosis with at least two dispensations of prescribed anti-androgens during 2005-2017. METHODS The risk of stillbirth in women with PCOS was estimated through multiple logistic regression, using women without PCOS as a reference. Risks were expressed as adjusted odds ratios (aORs) with 95% confidence intervals (95% CIs), adjusted for maternal age, parity, body mass index, type-1 diabetes, educational level and country of birth. MAIN OUTCOME MEASURES Stillbirth, at ≥22 weeks of gestation in 2008-2015 and at ≥28 weeks of gestation in 1997-2007. RESULTS Compared with women without PCOS (n = 241 750), women with PCOS (n = 41 851) had a 50% increased risk of stillbirth (aOR 1.50, 95% CI 1.28-1.77). The incidence of stillbirth in women with PCOS was particularly increased at term. Women with PCOS and a severe hyperandrogenic profile (n = 13 713) did not have a stronger association with stillbirth than women with PCOS who did not have such a profile. CONCLUSIONS PCOS is associated with stillbirth and should be considered as a possible risk factor in antenatal care. Further research is warranted to investigate possible causal mechanisms. TWEETABLE ABSTRACT Women with PCOS have increased risk of stillbirth, and the incidence is particularly increased at term.
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Affiliation(s)
- H Valgeirsdottir
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - T Kunovac Kallak
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - I Sundström Poromaa
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - M Jonsson
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - N Roos
- Department of Medicine, Solna, Clinical Epidemiology Division, Karolinska Institute, Stockholm, Sweden
| | - L Lindström
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - A-K Wikström
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
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21
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Thomsen AML, Ramlau-Hansen CH, Schullehner J, Ebdrup NH, Liew Z, Coffman V, Stayner L, Hansen B, Olsen J. Prenatal nitrosatable prescription drug intake, drinking water nitrate, and the risk of stillbirth: a register- and population-based cohort of Danish pregnancies, 1997-2017. Environ Health 2021; 20:118. [PMID: 34781958 PMCID: PMC8594235 DOI: 10.1186/s12940-021-00805-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 11/08/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Nitrosatable drugs commonly prescribed during pregnancy can react with nitrite to form N-nitroso compounds which have been associated with an increased risk of stillbirth. Whether maternal residential drinking water nitrate modifies this association is unknown. We investigated, if household drinking water nitrate was associated with stillbirth, and if it modified the association between nitrosatable prescription drug intake and the risk of stillbirth. METHODS We conducted an individual-level register- and population-based cohort study using 652,810 women with the first recorded singleton pregnancy in the Danish Medical Birth Registry between 1997 and 2017. Nitrosatable drug exposure was recorded by use of the Danish National Patient Registry defined as women with a first redeemed prescription of a nitrosatable drug the first 22 weeks of pregnancy. The reference group was women with no redeemed prescription of a nitrosatable drug in this period. The average individual drinking water nitrate concentration level (mg/L) was calculated in the same period. We categorized nitrosatable drugs as secondary amines, tertiary amines, and amides. Cox hazard regression was used to estimate crude and adjusted hazard ratios with 95% confidence intervals for stillbirth stratified into five categories of nitrate concentrations: ≤1 mg/L, > 1- ≤ 2 mg/L, > 2- ≤ 5 mg/L, > 5- ≤ 25 mg/L, and > 25 mg/L. RESULTS Drinking water nitrate exposure in the population was not associated with the risk of stillbirth. Among 100,244 women who had a nitrosatable prescription drug redeemed ≤22 weeks of pregnancy of pregnancy, 418 (0.42%) had a stillbirth compared to 1993 stillbirths (0.36%) among 552,566 referent women. Women with any nitrosatable prescription drug intake and > 1- ≤ 2 mg/L nitrate concentration had an increased risk of stillbirth [adjusted hazard ratio 1.55 (95% confidence interval, 1.15-2.09)] compared with referent women. In the stratified analyses, the highest risk of stillbirth was found among women with secondary amine intake and > 25 mg/L nitrate concentrations [adjusted hazard ratio 3.11 (95% CI, 1.08-8.94)]. CONCLUSIONS The association between nitrosatable prescription drug intake and the risk of stillbirth may depend on the level of nitrate in household drinking water. Evaluations of the effect of nitrosatable drug intake on perinatal outcomes might consider nitrate exposure from drinking water.
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Affiliation(s)
- Anne Marie Ladehoff Thomsen
- DEFACTUM, Public Health & Health Services Research, Central Denmark Region, Olof Palmes Allé 15, 8200, Aarhus N, Denmark.
- Department of Public Health, Aarhus University, Aarhus, Denmark.
| | | | - Jörg Schullehner
- Department of Public Health, Aarhus University, Aarhus, Denmark
- Department of Groundwater and Quaternary Geology Mapping, Geological Survey of Denmark and Greenland, Aarhus, Denmark
- Center for Integrated Research-based Research, Aarhus University, Aarhus, Denmark
| | | | - Zeyan Liew
- Department of Environmental Health Sciences, Yale School of Public Health, New Haven, CT, USA
- Yale Center for Perinatal, Pediatric, and Environmental Epidemiology, Yale School of Public Health, New Haven, USA
| | - Vanessa Coffman
- Division of Epidemiology and Biostatistics, School of Public Health, University of Illinois at Chicago, Chicago, IL, USA
| | - Leslie Stayner
- Division of Epidemiology and Biostatistics, School of Public Health, University of Illinois at Chicago, Chicago, IL, USA
| | - Birgitte Hansen
- Department of Groundwater and Quaternary Geology Mapping, Geological Survey of Denmark and Greenland, Aarhus, Denmark
| | - Jørn Olsen
- Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
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22
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Feleke BE, Feleke TE, Nigussie AA, Misgan E. The effects of stillbirth and abortion on the next pregnancy: a longitudinal study. BMC WOMENS HEALTH 2021; 21:340. [PMID: 34563190 PMCID: PMC8464111 DOI: 10.1186/s12905-021-01485-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 09/02/2021] [Indexed: 11/10/2022]
Abstract
BACKGROUND Abortion and stillbirths are the common obstetrics condition in Ethiopia and their effect on the next pregnancy was not well identified in resource limited settings. The aim of the study was to assess the effect of stillbirth and abortion on the next pregnancy. METHODS A prospective cohort study design was implemented. The study was conducted in Mecha demographic surveillance and field research center catchment areas. The data were collected from January 2015 to March 2019. Epi-info software was used to calculate the sample size. The systematic random sampling technique was used to select stillbirth and abortion women. Poison regression was used to identify the predictors of MCH service utilization; descriptive statistics were used to identify the prevalence of blood borne pathogens. The Kaplan Meier survival curve was used to estimate survival to pregnancy and pregnancy related medical disorders. RESULTS 1091 stillbirth and 3,026 abortion women were followed. Hepatitis B was present in 6% of abortion and 3.2% of stillbirth women. Hepatitis C was diagnosed in 4.7% of abortion and 0.3% of stillbirth women. HIV was detected in 3% of abortion and 0.8% of stillbirth women. MCH service utilization was determined by knowledge of contraceptives [IRR 1.29, 95% CI 1.18-1.42], tertiary education [IRR 4.29, 95% CI 3.72-4.96], secondary education. [IRR 3.14, 95% CI 2.73-3.61], married women [IRR 2.08, 95% CI 1.84-2.34], family size [IRR 0.67, 95% CI 1.001-1.01], the median time of pregnancy after stillbirth and abortion were 12 months. Ante-partum hemorrhage was observed in 23.1% of pregnant mothers with a past history of abortion cases and post-partum hemorrhage was observed in 25.6% of pregnant mothers with a past history of abortion. PREGNANCY INDUCED DIABETES MELLITUS was observed 14.3% of pregnant mothers with a past history of stillbirth and pregnancy-induced hypertension were observed in 9.2% of mothers with a past history of stillbirth. CONCLUSION Obstetric hemorrhage was the common complications of abortion women while Pregnancy-induced diabetic Mellitus and pregnancy-induced hypertension were the most common complications of stillbirth for the next pregnancy.
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Affiliation(s)
- Berhanu Elfu Feleke
- Department of Epidemiology and Biostatistics, University of Bahir Dar, Bahir Dar, Ethiopia.
| | | | | | - Eyaya Misgan
- Department of Gynecology and Obstetrics, University of Bahir Dar, Bahir Dar, Ethiopia
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23
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Bröms G, Friedman S, Kim SC, Wood ME, Hernandez-Diaz S, Brill G, Bateman BT, Huybrechts KF, Desai RJ. The Patterns of Use of Medications for Inflammatory Bowel Disease During Pregnancy in the US and Sweden Are Changing. Inflamm Bowel Dis 2021; 27:1427-1434. [PMID: 33751058 DOI: 10.1093/ibd/izaa294] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Population-level data spanning different countries describing oral and parenteral treatment in pregnant women with inflammatory bowel disease (IBD) are scarce. We studied treatment with sulfasalazine/5-aminosalicylates, corticosteroids, thiopurines/immunomodulators, and tumor necrosis factor (TNF)-inhibitors in the United States (Optum Clinformatics Data Mart and the Medicaid Analytics Extract [MAX]) and in the Swedish national health registers. METHODS We identified 2975 pregnant women in Optum (2004-2013), 3219 women in MAX (2001-2013), and 1713 women in Sweden (2006-2015) with a recorded diagnosis of IBD. We assessed patterns of use for each drug class according to filled prescriptions, assessing frequency of treatment continuation in those that were treated in the prepregnancy period. RESULTS The proportion of women with Crohn's disease and ulcerative colitis on any treatment during pregnancy was 56.1% and 56.3% in Optum, 47.5% and 49.3% in MAX, and 61.3% and 64.7% in Sweden, respectively, and remained stable over time. Sulfasalazine/5-aminosalicylates was the most commonly used treatment in Crohn's disease, ranging from 25.1% in MAX to 31.8% in Optum, and in ulcerative colitis, ranging from 34.9% in MAX to 53.6% in Sweden. From 2006 to 2012, the TNF-inhibitor use increased from 5.0% to 15.5% in Optum, from 3.6% to 8.5% in MAX, and from 0.7% to 8.3% in Sweden. Continuing TNF-inhibitor treatment throughout pregnancy was more common in Optum (55.8%) and in MAX (43.0%) than in Sweden (11.8%). CONCLUSIONS In this population-based study from 2 countries, the proportion of women with IBD treatment in pregnancy remained relatively constant. TNF-inhibitor use increased substantially in both countries.
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Affiliation(s)
- Gabriella Bröms
- Centre for Pharmacoepidemiology, Department of Medicine Solna, Karolinska Institutet.,Department of Internal Medicine, Danderyd Hospital, Stockholm, Sweden
| | - Sonia Friedman
- Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Seoyoung C Kim
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Mollie E Wood
- Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | | | - Gregory Brill
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Brian T Bateman
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA.,Department of Anesthesiology, Perioperative, and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Krista F Huybrechts
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Rishi J Desai
- Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
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24
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Tesema GA, Tessema ZT, Tamirat KS, Teshale AB. Prevalence of stillbirth and its associated factors in East Africa: generalized linear mixed modeling. BMC Pregnancy Childbirth 2021; 21:414. [PMID: 34078299 PMCID: PMC8173886 DOI: 10.1186/s12884-021-03883-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 05/19/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Stillbirth is the most frequently reported adverse pregnancy outcome worldwide, which imposes significant psychological and economic consequences to mothers and affected families. East African countries account for one-third of the 2.6 million stillbirths globally. Though stillbirth is a common public health problem in East African countries, there is limited evidence on the pooled prevalence and associated factors of stillbirth in East Africa. Therefore, this study aimed to investigate the prevalence of stillbirth and its associated factors in East Africa. METHODS This study was based on the most recent Demographic and Health Surveys (DHSs) of 12 East African countries. A total weighted sample of 138,800 reproductive-age women who gave birth during the study period were included in this study. The prevalence of stillbirth with the 95% Confidence Interval (CI) was reported using a forest plot. A mixed-effect binary logistic regression analysis was done to identify significantly associated factors of stillbirth. Since the DHS data has hierarchical nature, the presence of clustering effect was assessed using the Likelihood Ratio (LR) test, and Intra-cluster Correlation Coefficient (ICC), and deviance were used for model comparison. Variables with a p-value of less than 0.2 in the bi-variable analysis were considered for the multivariable analysis. In the multivariable mixed-effect binary logistic regression analysis, the Adjusted Odds Ratio (AOR) with 95% CI were reported to declare the strength and significance of the association. RESULTS The prevalence of stillbirth in East Africa was 0.86% (95% CI: 0.82, 0.91) ranged from 0.39% in Kenya to 2.28% in Burundi. In the mixed-effect analysis; country, women aged 25-34 years (AOR = 1.27, 95% CI: 1.11, 1.45), women aged ≥ 35 years (AOR = 1.19, 95% CI: 1.01, 1.44), poor household wealth (AOR = 1.07, 95% CI: 1.02, 1.23), women who didn't have media exposure (AOR = 1.11, 95% CI: 1.01, 1.25), divorced/widowed/separated marital status (AOR = 2.99, 95% CI: 2.04, 4.39), caesarean delivery (AOR = 1.81, 95% CI: 1.52, 2.15), preceding birth interval < 24 months (AOR = 1.15, 95% CI: 1.06, 1.24), women attained secondary education or above (AOR = 0.68, 95% CI: 0.56, 0.81) and preceding birth interval ≥ 49 months (AOR = 1.45, 95% CI: 1.28, 1.65) were significantly associated with stillbirth. CONCLUSIONS Stillbirth remains a major public health problem in East Africa, which varied significantly across countries. These findings highlight the weak health care system of East African countries. Preceding birth interval, county, maternal education media exposure, household wealth status, marital status, and mode of delivery were significantly associated with stillbirth. Therefore, public health programs enhancing maternal education, media access, and optimizing birth spacing should be designed to reduce the incidence of stillbirth.
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Affiliation(s)
- Getayeneh Antehunegn Tesema
- Department of Epidemiology and Biostatistics, Institute of Public Health, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia.
| | - Zemenu Tadesse Tessema
- Department of Epidemiology and Biostatistics, Institute of Public Health, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Koku Sisay Tamirat
- Department of Epidemiology and Biostatistics, Institute of Public Health, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Achamyeleh Birhanu Teshale
- Department of Epidemiology and Biostatistics, Institute of Public Health, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
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25
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Pacora P, Romero R, Jung E, Gudicha DW, Hernandez-Andrade E, Musilova I, Kacerovsky M, Jaiman S, Erez O, Hsu CD, Tarca AL. Reduced fetal growth velocity precedes antepartum fetal death. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2021; 57:942-952. [PMID: 32936481 PMCID: PMC9651138 DOI: 10.1002/uog.23111] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/24/2020] [Accepted: 08/26/2020] [Indexed: 05/25/2023]
Abstract
OBJECTIVES To determine whether decreased fetal growth velocity precedes antepartum fetal death and to evaluate whether fetal growth velocity is a better predictor of antepartum fetal death compared to a single fetal biometric measurement at the last available ultrasound scan prior to diagnosis of demise. METHODS This was a retrospective, longitudinal study of 4285 singleton pregnancies in African-American women who underwent at least two fetal ultrasound examinations between 14 and 32 weeks of gestation and delivered a liveborn neonate (controls; n = 4262) or experienced antepartum fetal death (cases; n = 23). Fetal death was defined as death diagnosed at ≥ 20 weeks of gestation and confirmed by ultrasound examination. Exclusion criteria included congenital anomaly, birth at < 20 weeks of gestation, multiple gestation and intrapartum fetal death. The ultrasound examination performed at the time of fetal demise was not included in the analysis. Percentiles for estimated fetal weight (EFW) and individual biometric parameters were determined according to the Hadlock and Perinatology Research Branch/Eunice Kennedy Shriver National Institute of Child Health and Human Development (PRB/NICHD) fetal growth standards. Fetal growth velocity was defined as the slope of the regression line of the measurement percentiles as a function of gestational age based on two or more measurements in each pregnancy. RESULTS Cases had significantly lower growth velocities of EFW (P < 0.001) and of fetal head circumference, biparietal diameter, abdominal circumference and femur length (all P < 0.05) compared to controls, according to the PRB/NICHD and Hadlock growth standards. Fetuses with EFW growth velocity < 10th percentile of the controls had a 9.4-fold and an 11.2-fold increased risk of antepartum death, based on the Hadlock and customized PRB/NICHD standards, respectively. At a 10% false-positive rate, the sensitivity of EFW growth velocity for predicting antepartum fetal death was 56.5%, compared to 26.1% for a single EFW percentile evaluation at the last available ultrasound examination, according to the customized PRB/NICHD standard. CONCLUSIONS Given that 74% of antepartum fetal death cases were not diagnosed as small-for-gestational age (EFW < 10th percentile) at the last ultrasound examination when the fetuses were alive, alternative approaches are needed to improve detection of fetuses at risk of fetal death. Longitudinal sonographic evaluation to determine growth velocity doubles the sensitivity for prediction of antepartum fetal death compared to a single EFW measurement at the last available ultrasound examination, yet the performance is still suboptimal. © 2020 International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- Percy Pacora
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS), Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Roberto Romero
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS), Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan, USA
- Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, Michigan, USA
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan, USA
- Detroit Medical Center, Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Florida International University, Miami, Florida, USA
| | - Eunjung Jung
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS), Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Dereje W. Gudicha
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS), Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Edgar Hernandez-Andrade
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS), Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Ivana Musilova
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS), Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Marian Kacerovsky
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS), Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Sunil Jaiman
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS), Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Offer Erez
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS), Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Chaur-Dong Hsu
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS), Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
- Department of Physiology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Adi L. Tarca
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS), Bethesda, Maryland, and Detroit, Michigan, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
- Department of Computer Science, Wayne State University College of Engineering, Detroit, Michigan, USA
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Beune IM, Damhuis SE, Ganzevoort W, Hutchinson JC, Khong TY, Mooney EE, Sebire NJ, Gordijn SJ. Consensus Definition of Fetal Growth Restriction in Intrauterine Fetal Death: A Delphi Procedure. Arch Pathol Lab Med 2021; 145:428-436. [PMID: 32882006 DOI: 10.5858/arpa.2020-0027-oa] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/28/2020] [Indexed: 11/06/2022]
Abstract
CONTEXT.— Fetal growth restriction is a risk factor for intrauterine fetal death. Currently, definitions of fetal growth restriction in stillborns are heterogeneous. OBJECTIVES.— To develop a consensus definition for fetal growth restriction retrospectively diagnosed at fetal autopsy in intrauterine fetal death. DESIGN.— A modified online Delphi survey in an international panel of experts in perinatal pathology, with feedback at group level and exclusion of nonresponders. The survey scoped all possible variables with an open question. Variables suggested by 2 or more experts were scored on a 5-point Likert scale. In subsequent rounds, inclusion of variables and thresholds were determined with a 70% level of agreement. In the final rounds, participants selected the consensus algorithm. RESULTS.— Fifty-two experts participated in the first round; 88% (46 of 52) completed all rounds. The consensus definition included antenatal clinical diagnosis of fetal growth restriction OR a birth weight lower than third percentile OR at least 5 of 10 contributory variables (risk factors in the clinical antenatal history: birth weight lower than 10th percentile, body weight at time of autopsy lower than 10th percentile, brain weight lower than 10th percentile, foot length lower than 10th percentile, liver weight lower than 10th percentile, placental weight lower than 10th percentile, brain weight to liver weight ratio higher than 4, placental weight to birth weight ratio higher than 90th percentile, histologic or gross features of placental insufficiency/malperfusion). There was no consensus on some aspects, including how to correct for interval between fetal death and delivery. CONCLUSIONS.— A consensus-based definition of fetal growth restriction in fetal death was determined with utility to improve management and outcomes of subsequent pregnancies.
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Affiliation(s)
- Irene Maria Beune
- From the Department of Obstetrics and Gynecology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands (Beune, Damhuis, Gordijn)
| | - Stefanie Elisabeth Damhuis
- From the Department of Obstetrics and Gynecology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands (Beune, Damhuis, Gordijn).,the Department of Obstetrics and Gynecology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands (Damhuis, Ganzevoort)
| | - Wessel Ganzevoort
- the Department of Obstetrics and Gynecology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands (Damhuis, Ganzevoort)
| | - John Ciaran Hutchinson
- The Department of Histopathology, Great Ormond Street Hospital for Children NHS Trust, London, United Kingdom (Hutchinson).,The UCL Great Ormond Street Institute of Child Health, London, United Kingdom (Hutchinson)
| | - Teck Yee Khong
- The Department of Anatomical Pathology, Women's and Children's Hospital, North Adelaide, Australia (Khong)
| | - Eoghan E Mooney
- The Department of Pathology & Laboratory Medicine, National Maternity Hospital, Dublin, Ireland (Mooney)
| | - Neil James Sebire
- The Department of Pathology, Great Ormond Street Hospital for Children and UCL Institute of Child Health, London, United Kingdom (Sebire)
| | - Sanne Jehanne Gordijn
- From the Department of Obstetrics and Gynecology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands (Beune, Damhuis, Gordijn)
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Open fire exposure increases the risk of pregnancy loss in South Asia. Nat Commun 2021; 12:3205. [PMID: 34050160 PMCID: PMC8163851 DOI: 10.1038/s41467-021-23529-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 04/30/2021] [Indexed: 12/27/2022] Open
Abstract
Interactions between climate change and anthropogenic activities result in increasing numbers of open fires, which have been shown to harm maternal health. However, few studies have examined the association between open fire and pregnancy loss. We conduct a self-comparison case-control study including 24,876 mothers from South Asia, the region with the heaviest pregnancy-loss burden in the world. Exposure is assessed using a chemical transport model as the concentrations of fire-sourced PM2.5 (i.e., fire PM2.5). The adjusted odds ratio (OR) of pregnancy loss for a 1-μg/m3 increment in averaged concentration of fire PM2.5 during pregnancy is estimated as 1.051 (95% confidence intervals [CI]: 1.035, 1.067). Because fire PM2.5 is more strongly linked with pregnancy loss than non-fire PM2.5 (OR: 1.014; 95% CI: 1.011, 1.016), it contributes to a non-neglectable fraction (13%) of PM2.5-associated pregnancy loss. Here, we show maternal health is threaten by gestational exposure to fire smoke in South Asia.
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Mor M, Kugler N, Jauniaux E, Betser M, Wiener Y, Cuckle H, Maymon R. Impact of the COVID-19 Pandemic on Excess Perinatal Mortality and Morbidity in Israel. Am J Perinatol 2021; 38:398-403. [PMID: 33302306 DOI: 10.1055/s-0040-1721515] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
OBJECTIVE The 2020 COVID-19 pandemic has been associated with excess mortality and morbidity in adults and teenagers over 14 years of age, but there is still limited evidence on the direct and indirect impact of the pandemic on pregnancy. We aimed to evaluate the effect of the first wave of the COVID-19 pandemic on obstetrical emergency attendance in a low-risk population and the corresponding perinatal outcomes. STUDY DESIGN This is a single center retrospective cohort study of all singleton births between February 21 and April 30. Prenatal emergency labor ward admission numbers and obstetric outcomes during the peak of the first COVID-19 pandemic of 2020 in Israel were compared with the combined corresponding periods for the years 2017 to 2019. RESULTS During the 2020 COVID-19 pandemic, the mean number of prenatal emergency labor ward admissions was lower, both by daily count and per woman, in comparison to the combined matching periods in 2017, 2018, and 2019 (48.6 ± 12.2 vs. 57.8 ± 14.4, p < 0.0001 and 1.74 ± 1.1 vs. 1.92 ± 1.2, p < 0.0001, respectively). A significantly (p = 0.0370) higher rate of stillbirth was noted in the study group (0.4%) compared with the control group (0.1%). All study group patients were negative for COVID-19. Gestational age at delivery, rates of premature delivery at <28, 34, and 37 weeks, pregnancy complications, postdate delivery at >40 and 41 weeks, mode of delivery, and numbers of emergency cesarean deliveries were similar in both groups. There was no difference in the intrapartum fetal death rate between the groups. CONCLUSION The COVID-19 pandemic stay-at-home policy combined with patient fear of contracting the disease in hospital could explain the associated higher rate of stillbirth. This collateral perinatal damage follows a decreased in prenatal emergency labor ward admissions during the first wave of COVID-19 in Israel. KEY POINTS · Less obstetrical ER attendance is observed during the pandemic.. · There is a parallel increase in stillbirth rate.. · Stillbirth cases tested negative for COVID-19.. · Lockdown and pandemic panic are possible causes..
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Affiliation(s)
- Matan Mor
- Department of Obstetrics and Gynecology, The Yitzhak Shamir Medical Center (formerly Assaf Harofeh Medical Center), Zerifin, Israel, affiliated to the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Nadav Kugler
- Department of Obstetrics and Gynecology, The Yitzhak Shamir Medical Center (formerly Assaf Harofeh Medical Center), Zerifin, Israel, affiliated to the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Eric Jauniaux
- EGA Institute for Women's Health, Faculty of Population Health Sciences, University College London, London, United Kingdom
| | - Moshe Betser
- Department of Obstetrics and Gynecology, The Yitzhak Shamir Medical Center (formerly Assaf Harofeh Medical Center), Zerifin, Israel, affiliated to the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Yifat Wiener
- Department of Obstetrics and Gynecology, The Yitzhak Shamir Medical Center (formerly Assaf Harofeh Medical Center), Zerifin, Israel, affiliated to the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Howard Cuckle
- Visiting professor Department of Obstetrics and Gynecology Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ron Maymon
- Department of Obstetrics and Gynecology, The Yitzhak Shamir Medical Center (formerly Assaf Harofeh Medical Center), Zerifin, Israel, affiliated to the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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Fikre R, Ejeta S, Gari T, Alemayhu A. Determinants of stillbirths among women who gave birth at Hawassa university comprehensive specialized hospital, Hawassa, Sidama, Ethiopia 2019: a case-control study. Matern Health Neonatol Perinatol 2021; 7:10. [PMID: 33597030 PMCID: PMC7888129 DOI: 10.1186/s40748-021-00128-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 01/14/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Globally over 2.6 million pregnancy ends with stillbirth annually. Despite this fact, only a few sherds of evidence were available about factors associated with stillbirth in Ethiopia. Therefore, the study aimed to spot factors related to stillbirth among women who gave birth at Hawassa University Comprehensive Specialized Hospital Hawassa, Sidama Ethiopia, 2019. METHODS Facility-based unmatched case-control study was conducted at Hawassa University Comprehensive Specialized Hospital. Cases were selected using simple random sampling technique and controls were recruited to the study consecutively after every case selection with case to control ratio of 1 to 3. Data were coded and entered into Epi-data version 3.1 and exported to SPSS version 24 for analysis. RESULTS A total of 106 cases and 318 controls were included in the study. Number of antenatal care visit [AOR = 0.38, 95% CI (0.15, 0.95)], lack of partograph utilization [AOR = 4.1 95% CI (2.04, 10.5)], prolonged labor [AOR = 6.5, 95% CI (2.9, 14.4)], obstructed labor [AOR = 3.5, 95% CI (1.5, 9.4)], and congenital defect [AOR = 9.7, 95% CI (4.08, 23.0)] were significantly associated with stillbirth. CONCLUSION Absence of partograph utilization, prolonged labor, obstructed labor, antepartum hemorrhage and congenital anomaly were found to have positive association with stillbirth.
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Affiliation(s)
- Rekiku Fikre
- Mettu University, College of Health Science, P.O. Box 2156, Mettu, Ethiopia.
| | - Samuel Ejeta
- Mettu University, College of Health Science, P.O. Box 2156, Mettu, Ethiopia.
| | - Taye Gari
- Mettu University, College of Health Science, P.O. Box 2156, Mettu, Ethiopia
| | - Akalewold Alemayhu
- Hawassa University, College of Medicine and Health Science, School of public health, P.O. Box 1560, Awassa, Ethiopia
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Smith GC, Moraitis AA, Wastlund D, Thornton JG, Papageorghiou A, Sanders J, Heazell AE, Robson SC, Sovio U, Brocklehurst P, Wilson EC. Universal late pregnancy ultrasound screening to predict adverse outcomes in nulliparous women: a systematic review and cost-effectiveness analysis. Health Technol Assess 2021; 25:1-190. [PMID: 33656977 PMCID: PMC7958245 DOI: 10.3310/hta25150] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND Currently, pregnant women are screened using ultrasound to perform gestational aging, typically at around 12 weeks' gestation, and around the middle of pregnancy. Ultrasound scans thereafter are performed for clinical indications only. OBJECTIVES We sought to assess the case for offering universal late pregnancy ultrasound to all nulliparous women in the UK. The main questions addressed were the diagnostic effectiveness of universal late pregnancy ultrasound to predict adverse outcomes and the cost-effectiveness of either implementing universal ultrasound or conducting further research in this area. DESIGN We performed diagnostic test accuracy reviews of five ultrasonic measurements in late pregnancy. We conducted cost-effectiveness and value-of-information analyses of screening for fetal presentation, screening for small for gestational age fetuses and screening for large for gestational age fetuses. Finally, we conducted a survey and a focus group to determine the willingness of women to participate in a future randomised controlled trial. DATA SOURCES We searched MEDLINE, EMBASE and the Cochrane Library from inception to June 2019. REVIEW METHODS The protocol for the review was designed a priori and registered. Eligible studies were identified using keywords, with no restrictions for language or location. The risk of bias in studies was assessed using the Quality Assessment of Diagnostic Accuracy Studies 2 (QUADAS-2) tool. Health economic modelling employed a decision tree analysed via Monte Carlo simulation. Health outcomes were from the fetal perspective and presented as quality-adjusted life-years. Costs were from the perspective of the public sector, defined as NHS England, and the costs of special educational needs. All costs and quality-adjusted life-years were discounted by 3.5% per annum and the reference case time horizon was 20 years. RESULTS Umbilical artery Doppler flow velocimetry, cerebroplacental ratio, severe oligohydramnios and borderline oligohydramnios were all either non-predictive or weakly predictive of the risk of neonatal morbidity (summary positive likelihood ratios between 1 and 2) and were all weakly predictive of the risk of delivering a small for gestational age infant (summary positive likelihood ratios between 2 and 4). Suspicion of fetal macrosomia is strongly predictive of the risk of delivering a large infant, but it is only weakly, albeit statistically significantly, predictive of the risk of shoulder dystocia. Very few studies blinded the result of the ultrasound scan and most studies were rated as being at a high risk of bias as a result of treatment paradox, ascertainment bias or iatrogenic harm. Health economic analysis indicated that universal ultrasound for fetal presentation only may be both clinically and economically justified on the basis of existing evidence. Universal ultrasound including fetal biometry was of borderline cost-effectiveness and was sensitive to assumptions. Value-of-information analysis indicated that the parameter that had the largest impact on decision uncertainty was the net difference in cost between an induced delivery and expectant management. LIMITATIONS The primary literature on the diagnostic effectiveness of ultrasound in late pregnancy is weak. Value-of-information analysis may have underestimated the uncertainty in the literature as it was focused on the internal validity of parameters, which is quantified, whereas the greatest uncertainty may be in the external validity to the research question, which is unquantified. CONCLUSIONS Universal screening for presentation at term may be justified on the basis of current knowledge. The current literature does not support universal ultrasonic screening for fetal growth disorders. FUTURE WORK We describe proof-of-principle randomised controlled trials that could better inform the case for screening using ultrasound in late pregnancy. STUDY REGISTRATION This study is registered as PROSPERO CRD42017064093. FUNDING This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 25, No. 15. See the NIHR Journals Library website for further project information.
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Affiliation(s)
- Gordon Cs Smith
- Department of Obstetrics and Gynaecology, NIHR Cambridge Biomedical Research Centre, University of Cambridge, Cambridge, UK
| | - Alexandros A Moraitis
- Department of Obstetrics and Gynaecology, NIHR Cambridge Biomedical Research Centre, University of Cambridge, Cambridge, UK
| | - David Wastlund
- The Primary Care Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
| | - Jim G Thornton
- Division of Child Health, Obstetrics and Gynaecology, School of Medicine, University of Nottingham, Nottingham, UK
| | - Aris Papageorghiou
- Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Oxford, UK
| | - Julia Sanders
- School of Healthcare Sciences, Cardiff University, Cardiff, UK
| | - Alexander Ep Heazell
- Faculty of Biology, Medicine and Health, School of Medical Sciences, University of Manchester, Manchester, UK
| | - Stephen C Robson
- Reproductive and Vascular Biology Group, The Medical School, Newcastle University, Newcastle upon Tyne, UK
| | - Ulla Sovio
- Department of Obstetrics and Gynaecology, NIHR Cambridge Biomedical Research Centre, University of Cambridge, Cambridge, UK
| | - Peter Brocklehurst
- Birmingham Clinical Trials Unit, University of Birmingham, Birmingham, UK
| | - Edward Cf Wilson
- The Primary Care Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
- Health Economics Group, Norwich Medical School, University of East Anglia, Norwich, UK
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Tesema GA, Gezie LD, Nigatu SG. Spatial distribution of stillbirth and associated factors in Ethiopia: a spatial and multilevel analysis. BMJ Open 2020; 10:e034562. [PMID: 33115888 PMCID: PMC7594361 DOI: 10.1136/bmjopen-2019-034562] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVE Although the rate of stillbirth has decreased globally, it remains unacceptably high in developing countries. Today, only 10 countries share the burden of more than 65% of the global rate of stillbirth and these include Ethiopia. Ethiopia ranks seventh in terms of high rate of stillbirths. Exploring the spatial distribution of stillbirth is critical to developing successful interventions and monitoring public health programmes. However, there is no study on the spatial distribution and the associated factors of stillbirth in Ethiopia. Therefore, this study aimed to explore the spatial distribution and the associated factors of stillbirth. METHODS Secondary data analysis was conducted based on the 2016 Ethiopian Demographic and Health Survey data. A total weighted sample of 11 375 women were included in the analysis. The Bernoulli model was fitted using SaTScan V.9.6 to identify hotspot areas and ArcGIS V.10.6 to explore the spatial distribution of stillbirth. For associated factors, a multilevel binary logistic regression model was fitted using STATA V.14 software. Variables with a p value of less than 0.2 were considered for the multivariable multilevel analysis. In the multivariable multilevel analysis, adjusted OR (AOR) with 95% CI was reported to reveal significantly associated factors of stillbirth. RESULTS The spatial analysis showed that stillbirth has significant spatial variation across the country. The SaTScan analysis identified significant primary clusters of stillbirth in the Northeast Somali region (log likelihood ratio (LLR)=13.4, p<0.001) and secondary clusters in the border area of Oromia and Amhara regions (LLR=8.8, p<0.05). In the multilevel analysis, rural residence (AOR=4.83, 95% CI 1.44 to 16.19), primary education (AOR=0.39, 95% CI 0.20 to 0.74), no antenatal care (ANC) visit (AOR=2.77, 95% CI 1.70 to 4.51), caesarean delivery (AOR=5.07, 95% CI 1.65 to 15.58), birth interval <24 months (AOR=1.95, 95% CI 1.20 to 3.10) and height <150 cm (AOR=2.73, 95% CI 1.45 to 4.97) were significantly associated with stillbirth. CONCLUSION AND RECOMMENDATION In Ethiopia, stillbirth had significant spatial variations across the country. Residence, maternal stature, preceding birth interval, caesarean delivery, education and ANC visit were significantly associated with stillbirth. Therefore, public health interventions that enhance maternal healthcare service utilisation and maternal education in hotspot areas of stillbirth are crucial to reducing stillbirth in Ethiopia.
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Affiliation(s)
- Getayeneh Antehunegn Tesema
- Epidemiology and Biostatistics, University of Gondar College of Medicine and Health Sciences, Gondar, Ethiopia
| | - Lemma Derseh Gezie
- Epidemiology and Biostatistics, University of Gondar College of Medicine and Health Sciences, Gondar, Ethiopia
| | - Solomon Gedlu Nigatu
- Epidemiology and Biostatistics, University of Gondar College of Medicine and Health Sciences, Gondar, Ethiopia
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Fonseca MJ, Santos F, Afreixo V, Silva IS, Almeida MDC. Does induction of labor at term increase the risk of cesarean section in advanced maternal age? A systematic review and meta-analysis. Eur J Obstet Gynecol Reprod Biol 2020; 253:213-219. [PMID: 32889327 DOI: 10.1016/j.ejogrb.2020.08.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 08/17/2020] [Accepted: 08/21/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Women of advanced maternal age, defined as ≥ 35 years at delivery, are at increased risk of multiple complications during pregnancy, with perinatal death being one of the most feared. For instance, the risk of stillbirth at term in this subgroup of women is higher than in younger women, and particularly high beyond 39 weeks of gestation. Induction of labor at 39-40 weeks might help prevent some cases of perinatal death, however, the fact that induction of labor has been historically associated with an increased risk of cesarean delivery and the knowledge that advanced maternal age is an independent risk factor for cesarean delivery are some of the major reasons why clinicians are reluctant to offer elective induction of labor in this particular group. OBJECTIVE The aim of the study was to assess if induction of labor in advanced maternal age was associated with increased rates of cesarean delivery when compared to expectant management. MATERIAL AND METHODS We performed an electronic search limited to published articles available between January 2000 and March 2020. Randomized clinical trials and retrospective studies with large cohorts comparing induction of labor with expectant management in singleton pregnancies at term, of women aged ≥ 35 years were included. The primary outcome was the rate of cesarean delivery in induction of labor versus expectant management, and secondary outcomes were the occurrence of assisted vaginal delivery and postpartum hemorrhage. RESULTS Eight studies, including 81151 pregnancies (26,631 in the induction group and 54,520 expectantly managed), were included in the analysis. Six of the included studies were randomized clinical trials with the remaining two being observational and retrospective cohort studies. Induction of labor was not associated with a significant increased risk of cesarean delivery (OR 0.97, 95 % CI 0.86-1.1), assisted vaginal delivery (OR 1.12, 95 % CI 0.96-1.32) or postpartum hemorrhage (OR 1.11, 95 % CI 0.88-1.41). DISCUSSION The belief that induction of labor is associated with an increased risk of cesarean delivery is based on the results of retrospective studies comparing induction with spontaneous labor at the same gestational age. However, at any point in a pregnancy, the comparison should be between induction of labor and expectant management, with the latter contributing to a pregnancy of greater gestation age and not always leading to spontaneous labor. When comparing induction to expectant management, our study shows no significant increase of cesarean section, assisted vaginal delivery or postpartum hemorrhage. Our study was not powered to assess neonatal outcomes, and additional research is needed to confirm whether induction of labor might have a positive effect in preventing stillbirth. CONCLUSION Induction of labor at term in advanced maternal age has no significant impact on cesarean delivery rates, assisted vaginal delivery or postpartum hemorrhage, giving additional reassurance to obstetricians who would consider this intervention in this particular subgroup.
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Affiliation(s)
- Maria João Fonseca
- Department of Obstetrics, Maternidade Bissaya Barreto- Centro Hospitalar e Universitário de Coimbra, Portugal.
| | - Fernanda Santos
- Department of Obstetrics, Maternidade Bissaya Barreto- Centro Hospitalar e Universitário de Coimbra, Portugal
| | - Vera Afreixo
- CIDMA/IBIMED/Department of Mathematics, University of Aveiro, Portugal
| | - Isabel Santos Silva
- Department of Obstetrics, Maternidade Bissaya Barreto- Centro Hospitalar e Universitário de Coimbra, Portugal
| | - Maria do Céu Almeida
- Department of Obstetrics, Maternidade Bissaya Barreto- Centro Hospitalar e Universitário de Coimbra, Portugal
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Delayed diagnosis of gestational diabetes mellitus and perinatal outcomes in women with large for gestational age fetuses during the third trimester. Obstet Gynecol Sci 2020; 63:615-622. [PMID: 32814375 PMCID: PMC7494771 DOI: 10.5468/ogs.20007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 06/21/2020] [Indexed: 10/28/2022] Open
Abstract
OBJECTIVE We evaluated the incidence of newly diagnosed gestational diabetes mellitus (GDM) during the 3rd trimester in women with suspected large for gestational age (LGA) fetuses on ultrasound and assessed their perinatal outcomes. METHODS A retrospective cohort study was performed. Singleton pregnant women with suspected LGA on the 3rd trimester ultrasound and whose results of GDM screening at midpregnancy had been normal were enrolled. All participants were retested with 100-g oral glucose tolerance test (OGTT) within 2 days after diagnosis of LGA. We compared perinatal outcomes between the newly diagnosed with GDM group and the non-GDM group. RESULTS Among 169 pregnant women, 13% (23/169) were newly diagnosed with GDM. The women in the GDM group had a higher HbA1c level at diagnosis (5.8 vs. 5.3, P<0.01) and earlier gestational age at delivery (38.0 vs 38.9 weeks of gestation, P=0.003) than those in the non-GDM group. The rate of cesarean delivery (CD) was significantly higher in the GDM group than that in the non-GDM group (73.9%, vs. 49.3%, P=0.028) with similar proportions for the indications of CD except CD on maternal request (CDMR). The CDMR rate was higher in the GDM group than nonGDM group (41.2% vs. 23.6%) but it did not reach statistical significance. There were no significant differences in the obstetrical and neonatal complications between the two groups. CONCLUSION Among pregnant women with suspected LGA, 13% were newly diagnosed with GDM in late pregnancy. Nonetheless, there were no differences in the perinatal outcomes between women with newly diagnosed GDM and those without GDM. However, concerns over shoulder dystocia appear to increase CD rates in the GDM group.
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Schut PC, Brosens E, Van Dooren TJM, Galis F, Ten Broek CMA, Baijens IMM, Dremmen MHG, Tibboel D, Schol MP, de Klein A, Eggink AJ, Cohen-Overbeek TE. Exploring copy number variants in deceased fetuses and neonates with abnormal vertebral patterns and cervical ribs. Birth Defects Res 2020; 112:1513-1525. [PMID: 32755042 PMCID: PMC7689732 DOI: 10.1002/bdr2.1786] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 07/03/2020] [Accepted: 07/21/2020] [Indexed: 12/13/2022]
Abstract
Background Cervical patterning abnormalities are rare in the general population, but one variant, cervical ribs, is particularly common in deceased fetuses and neonates. The discrepancy between the incidence in the general population and early mortality is likely due to indirect selection against cervical ribs. The cause for the co‐occurrence of cervical ribs and adverse outcome remains unidentified. Copy number variations resulting in gain or loss of specific genes involved in development and patterning could play a causative role. Methods Radiographs of 374 deceased fetuses and infants, including terminations of pregnancies, stillbirths and neonatal deaths, were assessed. Copy number profiles of 265 patients were determined using single nucleotide polymorphism array. Results 274/374 patients (73.3%) had an abnormal vertebral pattern, which was associated with congenital abnormalities. Cervical ribs were present in 188/374 (50.3%) and were more common in stillbirths (69/128 [53.9%]) and terminations of pregnancies (101/188 [53.7%]), compared to live births (18/58, 31.0%). Large (likely) deleterious copy number variants and aneuploidies were prevalent in these patients. None of the rare copy number variants were recurrent or overlapped with candidate genes for vertebral patterning. Conclusions The large variety of copy number variants in deceased fetuses and neonates with similar abnormalities of the vertebral pattern probably reflects the etiological heterogeneity of vertebral patterning abnormalities. This genetic heterogeneity corresponds with the hypothesis that cervical ribs can be regarded as a sign of disruption of critical, highly interactive stages of embryogenesis. The vertebral pattern can probably provide valuable information regarding fetal and neonatal outcome.
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Affiliation(s)
- Pauline C Schut
- Department of Obstetrics and Gynecology, Division of Obstetrics and Fetal Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Erwin Brosens
- Department of Clinical Genetics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Tom J M Van Dooren
- Naturalis Biodiversity Center, Leiden, The Netherlands.,CNRS, Institute of Ecology and Environmental Sciences iEES Paris, Sorbonne University, Paris, France
| | | | | | - Inge M M Baijens
- Department of Obstetrics and Gynecology, Division of Obstetrics and Fetal Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Marjolein H G Dremmen
- Department of Radiology, Division of Paediatric Radiology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Dick Tibboel
- Department of Paediatric Surgery, Erasmus MC, Erasmus University Medical Center Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Martin P Schol
- Department of Clinical Genetics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Annelies de Klein
- Department of Clinical Genetics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Alex J Eggink
- Department of Obstetrics and Gynecology, Division of Obstetrics and Fetal Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Titia E Cohen-Overbeek
- Department of Obstetrics and Gynecology, Division of Obstetrics and Fetal Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
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Smith G. A critical review of the Cochrane meta-analysis of routine late-pregnancy ultrasound. BJOG 2020; 128:207-213. [PMID: 32598533 DOI: 10.1111/1471-0528.16386] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/19/2020] [Indexed: 11/29/2022]
Abstract
A Cochrane review of universal late-pregnancy ultrasound has been highly influential in guiding UK practice, concluding that it does not improve outcome. However, the meta-analysis combines trials that used diverse definitions of screen positive, were designed in the absence of high-quality data on diagnostic effectiveness and did not couple screening to an effective intervention. Moreover, even if the trials had combined a highly effective screening test with a highly effective intervention, the sample size was 15% of that required to study perinatal death. It is not known whether universal late-pregnancy ultrasound confers benefit on the mother or baby. TWEETABLE ABSTRACT: Despite >50 years of research, we do not know whether universal late-pregnancy ultrasound confers benefit on the mother or baby.
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Affiliation(s)
- Gcs Smith
- Department of Obstetrics and Gynaecology, NIHR Cambridge Biomedical Research Centre, University of Cambridge, Cambridge, UK
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36
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Iliodromiti S, Smith GCS, Lawlor DA, Pell JP, Nelson SM. UK stillbirth trends in over 11 million births provide no evidence to support effectiveness of Growth Assessment Protocol program. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2020; 55:599-604. [PMID: 32266750 DOI: 10.1002/uog.21999] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 02/18/2020] [Accepted: 02/19/2020] [Indexed: 06/11/2023]
Abstract
OBJECTIVE Use of the Growth Assessment Protocol (GAP) has increased internationally under the assumption that it reduces the stillbirth rate. The evidence for this is limited and based largely on an ecological time-trend study. Discordance in the uptake of the GAP program between Scotland and England/Wales enabled us to assess the assertion that implementation of GAP leads to a reduced stillbirth rate. METHODS We analyzed data from the National Records for Scotland and the Office for National Statistics on the number of singleton maternities and stillbirths in Scotland and in England and Wales, respectively, from 1 January 2000 to 31 December 2015. National uptake of the GAP program over time in each of the regions was recorded. Stillbirth rate per 1000 maternities was calculated, according to year of delivery, and compared between Scotland and England/Wales. RESULTS During the study period, there were 870 632 singleton maternities in Scotland, of which 4243 were stillbirths, and there were 10 469 120 singleton maternities in England and Wales, of which 51 562 were stillbirths. There was a marked difference in uptake of the GAP program between the two regions, with substantially fewer maternity units in Scotland implementing the program. Stillbirth rates were static up to 2010, with a decline thereafter in both regions, to 3.75 (95% CI, 3.25-4.30) per 1000 maternities in Scotland and 4.30 (95% CI, 4.15-4.46) per 1000 maternities in England and Wales in 2015. From 2010 onwards, the decline in Scotland was faster, equating to 48 (95% CI, 47.9-48.1) fewer stillbirths per 100 000 maternities in Scotland than in England and Wales from 2010 to 2015 compared with 2000 to 2009. CONCLUSIONS We observed a decline in stillbirth rate in England and Wales, which coincided with implementation of the GAP program. However, a concurrent decline in stillbirth rate was observed in Scotland in the absence of increased implementation of GAP. The secular rates of change in stillbirth rate in England and Wales cannot be used to infer efficacy of the GAP program. © 2020 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of the International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- S Iliodromiti
- Centre for Women's Health, Institute of Population Health, Queen Mary University London, London, UK
- School of Medicine, University of Glasgow, Glasgow, UK
| | - G C S Smith
- Department of Obstetrics and Gynaecology, University of Cambridge, NIHR Cambridge Comprehensive Biomedical Research Centre, Cambridge, UK
| | - D A Lawlor
- Bristol NIHR Biomedical Research Centre, Bristol, UK
- MRC Integrative Epidemiology Unit at the University of Bristol, Bristol, UK
- Population Health, Bristol Medical School, University of Bristol, Bristol, UK
| | - J P Pell
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - S M Nelson
- School of Medicine, University of Glasgow, Glasgow, UK
- Bristol NIHR Biomedical Research Centre, Bristol, UK
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37
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Miscarriage is associated with cervical ribs in thoracic outlet syndrome patients. Early Hum Dev 2020; 144:105027. [PMID: 32247157 DOI: 10.1016/j.earlhumdev.2020.105027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 03/23/2020] [Accepted: 03/23/2020] [Indexed: 11/22/2022]
Abstract
The constancy of the number of cervical vertebrae in mammals is probably the result of selection against associated variations. A survey among patients with and without cervical ribs showed an association between miscarriage and the presence of cervical ribs. This supports the hypothesized selection against variations in cervical vertebral number.
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38
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Lee HH, Bae JM, Lee BI, Lee KM, Wie JH, Kim JS, Cho YS, Jung SA, Kim SW, Choi H, Choi MG. Pregnancy outcomes in women with inflammatory bowel disease: a 10-year nationwide population-based cohort study. Aliment Pharmacol Ther 2020; 51:861-869. [PMID: 32266739 DOI: 10.1111/apt.15654] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 10/18/2019] [Accepted: 01/20/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Data relating to the association between inflammatory bowel disease (IBD) and pregnancy outcomes are lacking in Korea. AIMS To determine the incidence rates of pregnancy outcomes in women with IBD. METHODS A nationwide population study was performed using the Korean National Health Insurance claims database. A total of 2058 women with IBD consisting of ulcerative colitis (UC, n = 1469) and Crohn's disease (CD, n = 589) were pregnant between 2007 and 2016. We compared their incidence of pregnancy outcomes with 20 580 age-matched controls without IBD. We also stratified the patients into those with quiescent to mild and moderate to severe IBD and compared the outcomes between them. RESULTS The pregnancy rate of women with IBD was lower than that of women without (25.7% vs 32.3%, P < 0.001). Caesarean section (46.5% vs 38.8%, odds ratio [OR] 1.43, 95% confidence interval [CI]: 1.17-1.75), and intrauterine growth retardation (IUGR) (3.0% vs 1.0%, OR 2.89, 95% CI: 1.59-5.26) were increased in CD patients than the controls. In regards to disease severity, there were no significant differences in pregnancy outcomes between patients with quiescent to mild IBD and the controls. However, the live birth rate of patients with moderate to severe IBD was lower than that of the controls (65.0% vs 69.9%, OR 0.79, 95%CI: 0.66-0.94). In addition, moderate to severe IBD was significantly associated with spontaneous abortion (14.9% vs 11.9%, OR 1.33, 95% CI: 1.04-1.68), caesarean section (46.4% vs 38.8%, OR 1.41, 95% CI: 1.14-1.74) and IUGR (3.4% vs 1.0%, OR 3.20, 95% CI: 1.75-5.84). CONCLUSIONS With the exception of moderate to severe disease, the incidences of adverse pregnancy outcomes in women with IBD are similar to that of the general population.
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Affiliation(s)
- Han H Lee
- Division of Gastroenterology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Catholic Photomedicine Research Institute, Seoul, Korea
| | - Jung Min Bae
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Bo-In Lee
- Division of Gastroenterology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Catholic Photomedicine Research Institute, Seoul, Korea
| | - Kang-Moon Lee
- Division of Gastroenterology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jeong H Wie
- Department of Obstetrics and Gynecology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jin S Kim
- Division of Gastroenterology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Catholic Photomedicine Research Institute, Seoul, Korea
| | - Young-Seok Cho
- Division of Gastroenterology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Catholic Photomedicine Research Institute, Seoul, Korea
| | - Sung-Ae Jung
- Division of Gastroenterology, Department of Internal Medicine, Ewha Womans University School of Medicine, Seoul, Korea
| | - Sang W Kim
- Division of Gastroenterology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hwang Choi
- Division of Gastroenterology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Myung-Gyu Choi
- Division of Gastroenterology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Catholic Photomedicine Research Institute, Seoul, Korea
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Cnattingius S, Kramer MS, Norman M, Ludvigsson JF, Fang F, Lu D. Keep it in the family: comparing perinatal risks in small-for-gestational-age infants based on population vs within-sibling designs. Int J Epidemiol 2020; 48:297-306. [PMID: 30239740 DOI: 10.1093/ije/dyy196] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 08/15/2018] [Accepted: 08/24/2018] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Small-for-gestational-age (SGA) birth is commonly used as a proxy for fetal growth restriction, but also includes constitutionally small infants. Genetic factors account for almost half of the risk of SGA birth. We estimated perinatal risks of SGA birth using both population-based and within-sibling analyses, where the latter by design controls for shared genetic factors and maternal environmental factors that are constant across pregnancies. METHODS This was a prospective nationwide cohort study of 2 616 974 singleton infants born in Sweden between January 1987 and December 2012, of whom 1 885 924 were full siblings. We estimated associations between severe or moderate SGA (<3rd percentile and 3rd to <10th percentiles, respectively) and risks of stillbirth, neonatal mortality and morbidity, using both population-based and within-sibling analyses. Hazard ratios (HRs) with 95% confidence intervals (CIs) were estimated in stillbirth analyses, whereas relative risks (RRs) were used for analyses of neonatal outcomes. RESULTS Compared with non-SGA births (>10th percentile), the HR (95% CI) of stillbirth was 18.5 (95% CI 17.4-19.5) among severe SGA births in the population analysis and 22.5 (95% CI 18.7-27.1) in the within-sibling analysis. In non-malformed infants, RRs for neonatal mortality in moderate and severe SGA infants were similarly increased in both population and within-sibling analyses. In term non-malformed infants (≥37 weeks), SGA-related RRs of several neonatal morbidities were higher in within-sibling than in population analyses. CONCLUSIONS Perinatal risks associated with fetal growth restriction are more accurately estimated from analyses of SGA in which genetic factors are accounted for.
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Affiliation(s)
- Sven Cnattingius
- Clinical Epidemiology Unit, Department of Medicine Solna, Karolinska Institutet, Stockholm Sweden
| | - Michael S Kramer
- Departments of Pediatrics and of Epidemiology, Biostatistics and Occupational Health, McGill University Faculty of Medicine, Montreal, Canada
| | - Mikael Norman
- Division of Pediatrics, Department of Clinical Science, Intervention and Technology, Stockholm, Sweden.,Department of Neonatalogy, Karolinska University Hospital, Stockholm, Sweden
| | - Jonas F Ludvigsson
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.,Department of Pediatrics, Örebro University Hospital, Örebro, Sweden
| | - Fang Fang
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Donghao Lu
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.,Centre of Public Health Sciences, Faculty of Medicine, University of Iceland, Reykjavik, Iceland
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40
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Thomsen AML, Liew Z, Riis AH, Stayner LT, Ramlau-Hansen CH, Sigsgaard T, Olsen J. Nitrosatable drug exposure during pregnancy and risk of stillbirth. Pharmacoepidemiol Drug Saf 2019; 28:1204-1210. [PMID: 31348585 DOI: 10.1002/pds.4867] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 05/19/2019] [Accepted: 07/03/2019] [Indexed: 11/06/2022]
Abstract
PURPOSE Nitrosatable drugs can react with nitrite in the stomach and form N-nitroso compounds. Exposure to nitrosatable drugs has been associated with congenital malformations and preterm birth, but use during pregnancy as a cause of fetal death is not well-known. We examined if prenatally nitrosatable drug use is associated with risk of stillbirth. METHODS A nationwide cohort was conducted using 554 844 women with singleton and first recorded pregnancies regardless of previous pregnancy history from the Danish Medical Birth Register from 1996 to 2015. Exposure was recorded by use of the Danish National Prescription Register and defined as women who had redeemed a prescribed nitrosatable drug in the first 22 weeks of pregnancy. The reference group was women with no redeemed prescribed nitrosatable drug in this time period. We categorized nitrosatable drugs as secondary amines, tertiary amines, and amides. Cox hazard regression was used to estimate crude and adjusted hazard ratios (aHRs) with 95% confidence intervals (CIs) for stillbirth. RESULTS Among the 84 720 exposed women, 348 had a stillbirth compared with 1690 stillbirths among the 470 124 unexposed women. Women who used any prescribed nitrosatable drug were more likely to have a stillbirth compared with unexposed women (aHRs 1.24; 95% CI, 1.03-1.49). CONCLUSION Nitrosatable drug use during the first 22 weeks of pregnancy might increase risk of stillbirth. The findings should be interpreted cautiously because of important unmeasured factors that might influence the observed association, including maternal vitamin C intake, dietary, and other sources of nitrate/nitrite intake.
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Affiliation(s)
- Anne Marie L Thomsen
- Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
| | - Zeyan Liew
- Department of Environmental Health Sciences, Yale School of Public Health, New Haven, CT, USA.,Yale Center for Perinatal, Pediatric, and Environmental Epidemiology, Yale School of Public Health, New Haven, CT, USA
| | | | - Leslie Thomas Stayner
- Division of Epidemiology and Biostatistics, School of Public Health, University of Illinois at Chicago, Chicago, IL, USA
| | | | - Torben Sigsgaard
- Department of Public Health, Section for Environment, Occupation, and Health, Aarhus University, Aarhus, Denmark
| | - Jørn Olsen
- Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
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Ao Z, Wu X, Zhou J, Gu T, Wang X, Shi J, Zhao C, Cai G, Zheng E, Liu D, Wu Z, Li Z. Cloned pig fetuses exhibit fatty acid deficiency from impaired placental transport. Mol Reprod Dev 2019; 86:1569-1581. [PMID: 31347235 DOI: 10.1002/mrd.23242] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 07/08/2019] [Indexed: 01/23/2023]
Abstract
Cloned pig fetuses produced by somatic cell nuclear transfer show a high incidence of erroneous development in the uteri of surrogate mothers. The mechanisms underlying the abnormal intrauterine development of cloned pig fetuses are poorly understood. This study aimed to explore the potential causes of the aberrant development of cloned pig fetuses. The levels of numerous fatty acids in allantoic fluid and muscle tissue were lower in cloned pig fetuses than in artificial insemination-generated pig fetuses, thereby suggesting that cloned pig fetuses underwent fatty acid deficiency. Cloned pig fetuses also displayed trophoblast hypoplasia and a reduced expression of placental fatty acid transport protein 4 (FATP4), which is the predominant FATP family member expressed in porcine placentas. This result suggested that the placental fatty acid transport functions were impaired in cloned pig fetuses, possibly causing fatty acid deficiency in cloned pig fetuses. The present study provides useful information in elucidating the mechanisms underlying the abnormal development of cloned pig fetuses.
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Affiliation(s)
- Zheng Ao
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - Xiao Wu
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - Jun Zhou
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - Ting Gu
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - Xingwang Wang
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - Junsong Shi
- Guangdong Wens Pig Breeding Technology Co. Ltd., Wens Foodstuff Group Co. Ltd., Yunfu, Guangdong, China
| | - Chengfa Zhao
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - Gengyuan Cai
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - Enqin Zheng
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - Dewu Liu
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - Zhenfang Wu
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - Zicong Li
- National Engineering Research Center for Breeding Swine Industry, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China.,Guangdong Provincial Key Laboratory of Agro-animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
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Deng Y, Wang R, Zhou X, Ren L, Liu L. Fetal, neonatal, and infant death in central China (Hubei): A 16-year retrospective study of forensic autopsy cases. Medicine (Baltimore) 2019; 98:e15788. [PMID: 31169678 PMCID: PMC6571210 DOI: 10.1097/md.0000000000015788] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Data based on forensic autopsy in neonates and infants in China are rare in the literature. The purpose of this study is to evaluate the characteristics of fetal, neonatal, and infant death and to determine the main cause of death among them.A retrospective analysis of fetal and infant forensic autopsies referred to the Tongji Forensic Medical Center (TFMC) in Hubei, central China, during a 16-year period between January 1999 and December 2014, was performed.In this period, there were 1111 males and 543 females; the total male-to-female ratio (MFR) was 2.05:1. There were 173 fetal and infant autopsies conducted, comprised of 43 fetal, 84 neonatal (<28 days) and 46 infant (4 weeks to 1 year) cases. The annual case number ranged from 5 in 2004 to 18 in 2014 (annual mean of 10.8). MFR was 1.75:1. About 94% of these deaths (163/173) resulted from natural causes, 6 cases (3.5%) were accidental deaths, and 4 (2.3%) resulted from homicide (4 abandoned babies). Among fetuses, the most common causes of death were placental and umbilical cord pathologies (28%, 12/43), followed by intrapartum asphyxia resulting from amniotic fluid aspiration (AFA) or meconium aspiration syndrome (MAS) (18.6%, 8/43), congenital malformation (14%, 6/43), and intrapartum infection (9.3%, 4/43). A majority of neonatal deaths (66.7%, 56/84) died within 24 hours of birth. The main causes of neonatal death were asphyxia resulting from AFA, MAS, or hyaline membrane disease, and congenital malformation. The main causes of infant (1-12 months) death were infectious diseases, including pneumonia, meningitis, and viral brainstem encephalitis.This study was the 1st retrospective analysis of autopsies of fetal, neonatal, and infant death in TFMC and central China. We delineate the common causes of early demise among cases referred for autopsy, and report a male preponderance in this population. Our data observed that placental and/or umbilical cord pathology, asphyxia due to AFA, and/or MAS, and pneumonia were the leading causes of fetal, neonatal, and infant death, respectively. And it can inform clinical practitioners about the underlying causes of some of the most distressing cases in their practices.
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Affiliation(s)
- Yanfei Deng
- Department of Forensic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan
| | - Rongshuai Wang
- Department of Forensic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan
- Chongxin Judicial Expertise Center, Wuhan, China
| | - Xiaowei Zhou
- Chongxin Judicial Expertise Center, Wuhan, China
| | - Liang Ren
- Department of Forensic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan
| | - Liang Liu
- Department of Forensic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan
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Gupta PM, Freedman AA, Kramer MR, Goldenberg RL, Willinger M, Stoll BJ, Silver RM, Dudley DJ, Parker CB, Hogue CJR. Interpregnancy interval and risk of stillbirth: a population-based case control study. Ann Epidemiol 2019; 35:35-41. [PMID: 31208852 DOI: 10.1016/j.annepidem.2019.05.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 04/29/2019] [Accepted: 05/08/2019] [Indexed: 01/08/2023]
Abstract
PURPOSE We examined the association between interpregnancy intervals (IPIs) and stillbirth (defined as fetal death ≥20 weeks), as both short and long IPIs have been associated with adverse perinatal outcomes. Prior pregnancy loss is also a known risk factor for stillbirth, and women who suffer a prior loss often have shorter IPIs. For these reasons, we also sought to quantify the proportion of the association between prior pregnancy loss and subsequent stillbirth risk that may be attributed to a short IPI. METHODS We used data from the Stillbirth Collaborative Research Network, a multisite case-control study conducted in 2006-2008, restricted to singleton pregnancies among multiparous or multigravid women (985 controls and 291 cases). We accounted for complex sample design and nonparticipation with weighted multivariable logistic regression. RESULTS In the adjusted models, IPIs <6 months, as compared with a reference of 18-23 months, were associated with increased odds of stillbirth (aOR 1.6, 95% CI: 0.8, 3.4). Long IPIs (60-100 months) were also associated with an increased odds of stillbirth (aOR 2.4, 95% CI: 1.2, 4.5). After control for covariates, about one-fifth (21.2%) of the association of prior pregnancy loss (stillbirth, ectopic pregnancy, molar pregnancy, or spontaneous abortion) and stillbirth may be attributable to a short IPI. CONCLUSIONS Our results suggest that women who experience a prior pregnancy loss may benefit from additional counseling on adequate birth spacing to reduce subsequent stillbirth risk.
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Affiliation(s)
- Priya M Gupta
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA.
| | - Alexa A Freedman
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA
| | - Michael R Kramer
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA
| | | | - Marian Willinger
- Pregnancy and Perinatology Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD
| | - Barbara J Stoll
- Department of Pediatrics, University of Texas, San Antonio, TX
| | - Robert M Silver
- Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, UT
| | - Donald J Dudley
- Department of Obstetrics and Gynecology, University of Virginia, Charlottesville, VA
| | | | - Carol J R Hogue
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA
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Höglund B, Rådestad I, Hildingsson I. Few women receive a specific explanation of a stillbirth - an online survey of women's perceptions and thoughts about the cause of their baby's death. BMC Pregnancy Childbirth 2019; 19:139. [PMID: 31027483 PMCID: PMC6486682 DOI: 10.1186/s12884-019-2289-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 04/12/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND In Sweden, three to four out of every 1000 pregnancies end in stillbirth each year. The aim of this study was to investigate whether women who had experienced stillbirth perceived that they had received an explanation of the death and whether they believed that healthcare professionals were responsible for the death of the baby. METHODS An online survey of 356 women in Sweden who had experienced a stillbirth from January 2010 to April 2014. A mixed-methods approach with qualitative content analysis was used to examine the women's responses. RESULTS Nearly half of the women (48.6%) reported that they had not received any explanation as to why their babies had died. Of the women who reported that they had received an explanation, 84 (23.6%) had a specific explanation, and 99 (27.8%) had a vague explanation. In total, 73 (30.0%) of the 243 women who answered the question "Do you believe that healthcare personnel were responsible for the stillbirth?" stated Yes. The women reported that the healthcare staff had not acknowledged their intuition that the pregnancy was proceeding poorly. Furthermore, they perceived that the staff met them with nonchalance and arrogance. Additionally, the midwife had ignored or normalised the symptoms that could indicate that their pregnancy was proceeding poorly. Some women added that neglect and avoidance among the healthcare staff could have led to a lack of monitoring, which could have been crucial for the outcome of the pregnancy. CONCLUSIONS Half of the women surveyed reported that they had not received an explanation of their baby's death, and more than one-fourth held healthcare professionals responsible for the death.
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Affiliation(s)
- Berit Höglund
- Department of Women's and Children's Health, Uppsala University, 751 85, Uppsala, Sweden.
| | | | - Ingegerd Hildingsson
- Department of Women's and Children's Health, Uppsala University, 751 85, Uppsala, Sweden.,Department of Nursing, Mid Sweden University, Sundsvall, Sweden
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45
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Affiliation(s)
- Haywood L. Brown
- Morsani College of MedicineUniversity of South FloridaTampaFlorida
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Inherited predisposition to stillbirth: an intergenerational analysis of 26,788 mother-daughter pairs. Am J Obstet Gynecol 2019; 220:393.e1-393.e7. [PMID: 30682364 DOI: 10.1016/j.ajog.2019.01.215] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 12/27/2018] [Accepted: 01/16/2019] [Indexed: 11/20/2022]
Abstract
BACKGROUND Previous evidence suggests that placental dysfunction, which includes preeclampsia, is inherited from mother to daughter, but heritability of stillbirth has never been investigated. OBJECTIVE The purpose of this study was to investigate whether there is an inherited predisposition to stillbirth that is transmitted from mother to daughter. STUDY DESIGN We carried out a nested case-control study within the intergenerational cohort held in the Aberdeen Maternity and Neonatal Databank. All mothers who had at least 1 daughter in Aberdeen, United Kingdom, between 1949 and 2000 were included. Mother-daughter pairs were linked with the use of the Scottish Community Health Index number. The main exposure was the mother's history of stillbirth. The primary outcome was stillbirth in any of the daughter's pregnancies. A population average model that used generalized estimating equations with robust standard errors was used to estimate odds of a mother's history of stillbirth in daughters with a stillbirth compared with daughters with only livebirths. This method accounted for clustering of daughters within mothers, and multi-adjusted analyses were performed to include confounders at the daughter's pregnancy level. RESULTS Among the daughters, 384 had a history of ≥1 stillbirths (cases); 26,404 only ever had livebirths (control subjects). We found no statistically significant association between mothers' history of stillbirth (adjusted odds ratio, 0.63; 95% confidence interval, 0.24-1.63) or miscarriage (adjusted odds ratio, 1.01; 95% confidence interval, 0.71-1.42) and stillbirth in daughters. CONCLUSION This is the first study to investigate an inherited predisposition to stillbirth. There was no evidence of an inherited predisposition to stillbirth transmitted from mother to daughter.
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Vieira MC, Relph S, Copas A, Healey A, Coxon K, Alagna A, Briley A, Johnson M, Lawlor DA, Lees C, Marlow N, McCowan L, Page L, Peebles D, Shennan A, Thilaganathan B, Khalil A, Sandall J, Pasupathy D. The DESiGN trial (DEtection of Small for Gestational age Neonate), evaluating the effect of the Growth Assessment Protocol (GAP): study protocol for a randomised controlled trial. Trials 2019; 20:154. [PMID: 30832739 PMCID: PMC6398257 DOI: 10.1186/s13063-019-3242-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 02/06/2019] [Indexed: 11/29/2022] Open
Abstract
Background Stillbirth rates in the United Kingdom (UK) are amongst the highest of all developed nations. The association between small-for-gestational-age (SGA) foetuses and stillbirth is well established, and observational studies suggest that improved antenatal detection of SGA babies may halve the stillbirth rate. The Growth Assessment Protocol (GAP) describes a complex intervention that includes risk assessment for SGA and screening using customised fundal-height growth charts. Increased detection of SGA from the use of GAP has been implicated in the reduction of stillbirth rates by 22%, in observational studies of UK regions where GAP uptake was high. This study will be the first randomised controlled trial examining the clinical efficacy, health economics and implementation of the GAP programme in the antenatal detection of SGA. Methods/design In this randomised controlled trial, clusters comprising a maternity unit (or National Health Service Trust) were randomised to either implementation of the GAP programme, or standard care. The primary outcome is the rate of antenatal ultrasound detection of SGA in infants found to be SGA at birth by both population and customised standards, as this is recognised as being the group with highest risk for perinatal morbidity and mortality. Secondary outcomes include antenatal detection of SGA by population centiles, antenatal detection of SGA by customised centiles, short-term maternal and neonatal outcomes, resource use and economic consequences, and a process evaluation of GAP implementation. Qualitative interviews will be performed to assess facilitators and barriers to implementation of GAP. Discussion This study will be the first to provide data and outcomes from a randomised controlled trial investigating the potential difference between the GAP programme compared to standard care for antenatal ultrasound detection of SGA infants. Accurate information on the performance and service provision requirements of the GAP protocol has the potential to inform national policy decisions on methods to reduce the rate of stillbirth. Trial registration Primary registry and trial identifying number: ISRCTN 67698474. Registered on 2 November 2016. Electronic supplementary material The online version of this article (10.1186/s13063-019-3242-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Matias C Vieira
- Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, Women's Health Academic Centre KHP, 10th Floor North Wing, St. Thomas' Hospital, Westminster Bridge Road, London, SE1 7EH, UK
| | - Sophie Relph
- Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, Women's Health Academic Centre KHP, 10th Floor North Wing, St. Thomas' Hospital, Westminster Bridge Road, London, SE1 7EH, UK
| | - Andrew Copas
- Centre for Pragmatic Global Health Trials, Institute for Global Health, University College London, Gower Street, London, WC1E 6BT, UK
| | - Andrew Healey
- Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, Women's Health Academic Centre KHP, 10th Floor North Wing, St. Thomas' Hospital, Westminster Bridge Road, London, SE1 7EH, UK
| | - Kirstie Coxon
- Faculty of Health, Social Care and Education, Kingston and St. George's University, 6th Floor, Hunter Wing, Cranmer Terrace, London, SW17 0RE, UK
| | - Alessandro Alagna
- The Guy's and St Thomas' Charity, 9 King's Head Yard, London, SE1 1NA, UK
| | - Annette Briley
- Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, Women's Health Academic Centre KHP, 10th Floor North Wing, St. Thomas' Hospital, Westminster Bridge Road, London, SE1 7EH, UK
| | - Mark Johnson
- Department of Surgery and Cancer, Imperial College London, Kensington, London, SW7 2AZ, UK
| | - Deborah A Lawlor
- Population Health Science, Bristol Medical School, University of Bristol, Bristol, BS8 2BL, UK.,Bristol NIHR Biomedical Research Centre, Bristol, BS8 2BL, UK
| | - Christoph Lees
- Department of Surgery and Cancer, Imperial College London, Kensington, London, SW7 2AZ, UK
| | - Neil Marlow
- UCL Institute for Women's Health, University College London, Gower Street, London, WC1E 6BT, UK
| | - Lesley McCowan
- Faculty of Medical and Health Sciences, University of Auckland, Victoria Street West, Auckland, 1142, New Zealand
| | - Louise Page
- West Middlesex University Hospital, Chelsea and Westminster Hospital NHS Foundation Trust, Twickenham Road, Isleworth, TW7 6AF, UK
| | - Donald Peebles
- UCL Institute for Women's Health, University College London, Gower Street, London, WC1E 6BT, UK
| | - Andrew Shennan
- Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, Women's Health Academic Centre KHP, 10th Floor North Wing, St. Thomas' Hospital, Westminster Bridge Road, London, SE1 7EH, UK
| | - Baskaran Thilaganathan
- Fetal Medicine Unit, St George's University Hospitals NHS Foundation Trust, Blackshaw Road, London, SW17 0QT, UK.,Molecular and Clinical Sciences Research Institute, St George's, University of London, Cranmer Terrace, London, SW17 0RE, UK
| | - Asma Khalil
- Fetal Medicine Unit, St George's University Hospitals NHS Foundation Trust, Blackshaw Road, London, SW17 0QT, UK.,Molecular and Clinical Sciences Research Institute, St George's, University of London, Cranmer Terrace, London, SW17 0RE, UK
| | - Jane Sandall
- Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, Women's Health Academic Centre KHP, 10th Floor North Wing, St. Thomas' Hospital, Westminster Bridge Road, London, SE1 7EH, UK
| | - Dharmintra Pasupathy
- Department of Women and Children's Health, School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, Women's Health Academic Centre KHP, 10th Floor North Wing, St. Thomas' Hospital, Westminster Bridge Road, London, SE1 7EH, UK.
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Smith R, Mohapatra L, Hunter M, Evans TJ, Oldmeadow C, Holliday E, Hure A, Attia J. A case for not adjusting birthweight customized standards for ethnicity: observations from a unique Australian cohort. Am J Obstet Gynecol 2019; 220:277.e1-277.e10. [PMID: 30403974 DOI: 10.1016/j.ajog.2018.10.094] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 10/24/2018] [Accepted: 10/31/2018] [Indexed: 10/27/2022]
Abstract
BACKGROUND Low birthweight is more common in infants of indigenous (Aboriginal and/or Torres Strait Islander) than of White Australian mothers. Controversy exists on whether fetal growth is normally different in different populations. OBJECTIVE We sought to determine the relationships of birthweight, birthweight percentiles, and smoking with perinatal outcomes in indigenous vs nonindigenous infants to determine whether the White infant growth charts could be applied to indigenous infants. STUDY DESIGN Data were analyzed for indigenous status, maternal age and smoking, and perinatal outcomes in 45,754 singleton liveborn infants of at least 20 weeks gestation or 400 g birthweight delivered in New South Wales, Australia, between June 2010 and July 2015. RESULTS Indigenous infants (n=6372; 14%) had a mean birthweight 67 g lower than nonindigenous infants (P<.0001; with adjustment for infant sex and maternal body mass index). Indigenous mean birthweight percentile was 4.2 units lower (P<.0001). Adjustment for maternal age, smoking, body mass index, and infant sex reduced the difference in birthweight/percentiles to nonsignificance (12 g; P=.07). CONCLUSION Disparities exist between indigenous and non-indigenous Australian infants for birthweight, birthweight percentile, and adverse outcome rates. Adjustment for smoking and maternal age removed any significant difference in birthweights and birthweight percentiles for indigenous infants. Our data indicate that birthweight percentiles should not be adjusted for indigenous ethnicity because this normalizes disadvantage; because White and indigenous Australians have diverged for approximately 50,000 years, it is likely that the same conclusions apply to other ethnic groups. The disparities in birthweight percentiles that are associated with smoking will likely perpetuate indigenous disadvantage into the future because low birthweight is linked to the development of chronic noncommunicable disease and poorer educational attainment; similar problems may affect other indigenous populations.
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Khalil A. Unprecedented fall in stillbirth and neonatal death in twins: lessons from the UK. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2019; 53:153-157. [PMID: 30152183 DOI: 10.1002/uog.20107] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Accepted: 08/22/2018] [Indexed: 06/08/2023]
Affiliation(s)
- A Khalil
- Fetal Medicine Unit, St George's University Hospitals NHS Foundation Trust, University of London, London, UK
- Vascular Biology Research Centre, Molecular and Clinical Sciences Research Institute, St George's University of London, London, UK
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50
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Ananthan A, Nanavati R, Sathe P, Balasubramanian H. Placental Findings in Singleton Stillbirths: A Case-control Study. J Trop Pediatr 2019; 65:21-28. [PMID: 29420825 DOI: 10.1093/tropej/fmy006] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AIMS This prospective observational study compared placental lesions of stillbirth cases and live birth controls, and aimed to determine the cause of stillbirth. METHODS The study enrolled 85 stillbirths and 85 live births at the time of delivery. RESULTS There was significantly increased incidence of placental abruption (p = 0.005) and gestational diabetes (p = 0.032) in mothers with stillbirths. Histopathological examination of placenta was significantly abnormal in stillbirths compared with live births (p = 0.004). Delayed villous maturation was significantly more in stillbirths (38.82 vs. 16.47%; p = 0.002). Acute (30.59 vs. 16.47%; p = 0.04) and chronic diffuse villitis (16.47 vs. 4.7%; p = 0.02), chorionic plate acute vasculitis (28.235 vs. 14.11%; p = 0.04) were significantly more in stillbirths. Foetal vascular thrombi in the chorionic plate (30.58 vs. 14.12%; p = 0.02) and avascular villi (24.7 vs. 8.23%; p = 0.006) were significantly more in stillbirths. CONCLUSION These abnormal placental patterns could provide information about the etiopathogenisis in stillbirths of unknown aetiology.
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Affiliation(s)
- Anitha Ananthan
- Department of Neonatology, Seth G. S. Medical College and KEM Hospital, Mumbai, India
| | - Ruchi Nanavati
- Department of Neonatology, Seth G. S. Medical College and KEM Hospital, Mumbai, India
| | - Pragati Sathe
- Department of Pathology, Seth G. S. Medical College and KEM Hospital, Mumbai, India
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