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Martin KA, Cushman M. Factor V Leiden. JAMA 2025:2833423. [PMID: 40305030 DOI: 10.1001/jama.2025.2420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/02/2025]
Abstract
This JAMA Insights explores factor V Leiden, an inherited thrombophilia, and its association with venous and arterial thrombosis, how it affects pregnancy outcomes, and testing.
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Affiliation(s)
- Karlyn A Martin
- Division of Hematology and Oncology, Department of Medicine, Larner College of Medicine at the University of Vermont, Burlington
| | - Mary Cushman
- Division of Hematology and Oncology, Department of Medicine, Larner College of Medicine at the University of Vermont, Burlington
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Delis M, Emmanouilidou-Fotoulaki E, Chatzakis C, Theodoridis T, Sotiriadis A. Inherited thrombophilias and stillbirth: a systematic review and meta- analysis. Arch Gynecol Obstet 2025:10.1007/s00404-025-07989-6. [PMID: 40087172 DOI: 10.1007/s00404-025-07989-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2024] [Accepted: 02/20/2025] [Indexed: 03/17/2025]
Abstract
PURPOSE The association between inherited thrombophilias and stillbirth has been long investigated but the estimated risk remains unknown. The aim of our study is to summarize available data on the effect of Factor V Leiden, Prothrombin G20210A and MTHFR mutation, Protein S, Protein C and Anithrombin deficiency on the prevalence of stillbirth. METHODS We conducted a systematic review and meta- analysis of all relevant available PubMed, Embase and Cochrane studies until February 2024. A sensitivity analysis of only prospective and retrospective studies was performed. RESULTS Based on 31 included studies, Factor V Leiden and Prothrombin G202110A mutations, significantly rise the prevalence of stillbirth with a pooled OR 2.35 (95% CI 1.74-3.17) and 2.62 (95% CI 1.79-3.84), respectively. This positive correlation did not change in the sensitivity analysis. Positive correlation was also found between Antithrombin deficiency and stillbirth with a pooled OR 3.97 (95% CI 1.50-10.48). No statistically significant relationship was found between stillbirth and MTHFR mutation or Protein C and Protein S deficiency according to the random effects model. CONCLUSION Our findings suggest that in the presence of certain inherited thrombophilias, the occurrence of intrauterine fetal death is significantly more prevalent.
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Affiliation(s)
- Michail Delis
- 1st Department of Obstetrics and Gynecology, Aristotle University of Thessaloniki, Papageorgiou General Hospital, Ring Road, Nea Efkarpia, 54603, Thessaloniki, Greece.
| | - Elpida Emmanouilidou-Fotoulaki
- 1st Department of Pediatrics, Aristotle University of Thessaloniki, Ippokratio General Hospital, 54642, Thessaloniki, Greece
| | - Christos Chatzakis
- 2nd Department of Obstetrics and Gynecology, Aristotle University of Thessaloniki, Ippokratio General Hospital, 54642, Thessaloniki, Greece
| | - Theodoros Theodoridis
- 1st Department of Obstetrics and Gynecology, Aristotle University of Thessaloniki, Papageorgiou General Hospital, Ring Road, Nea Efkarpia, 54603, Thessaloniki, Greece
| | - Alexandros Sotiriadis
- 2nd Department of Obstetrics and Gynecology, Aristotle University of Thessaloniki, Ippokratio General Hospital, 54642, Thessaloniki, Greece
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SUKER A, LI Y, ROBSON D, MARREN A. Australasian recurrent pregnancy loss clinical management guideline 2024, part II. Aust N Z J Obstet Gynaecol 2024; 64:445-458. [PMID: 38934293 PMCID: PMC11660019 DOI: 10.1111/ajo.13820] [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: 09/28/2023] [Accepted: 04/03/2024] [Indexed: 06/28/2024]
Abstract
Part II of the Australasian guideline for the investigation and management of recurrent pregnancy loss (RPL) provides evidence-based guidance on the management of RPL provided. The implications of inherited and acquired thrombophilia with respect to RPL and suggestions for clinical management are provided. Autoimmune factors, including human leukocyte antigen, cytokines, antinuclear antibodies and coeliac antibodies, and guidance for management are discussed. Infective, inflammatory and endometrial causes of RPL are discussed in detail. Environmental and lifestyle factors, male factor and unexplained causes are outlined. Levels of evidence and grades of consensus are provided for all evidence-based statements.
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Affiliation(s)
- Adriana SUKER
- Department of Obstetrics and GynaecologyLiverpool HospitalSydneyNew South WalesAustralia
| | - Ying LI
- Department of Reproductive Endocrinology and InfertilityRoyal Prince Alfred HospitalSydneyNew South WalesAustralia
| | - Danielle ROBSON
- Department of Reproductive Endocrinology and InfertilityRoyal Prince Alfred HospitalSydneyNew South WalesAustralia
| | - Anthony MARREN
- Department of Reproductive Endocrinology and InfertilityRoyal Prince Alfred HospitalSydneyNew South WalesAustralia
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Wu W, Luo D, Ji C, Diao F, Wu L, Ruan X, Gu C, Luo M. Interaction effects of MTHFR C677T and A1298C polymorphisms with maternal glycated haemoglobin levels on adverse birth outcomes. Diabetes Metab Res Rev 2024; 40:e3794. [PMID: 38517730 DOI: 10.1002/dmrr.3794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 02/02/2024] [Accepted: 02/29/2024] [Indexed: 03/24/2024]
Abstract
AIMS The role of maternal genetic factors in the association between high glycated haemoglobin (HbA1c) levels and adverse birth outcomes remains unclear. MATERIALS AND METHODS In this study, the maternal HbA1c levels of 5108 normoglycemic pregnant women in China were measured, and A1298C and C677T polymorphisms in the methylenetetrahydrofolate reductase (MTHFR) gene were genotyped. RESULTS Elevated HbA1c levels during the second trimester were associated with increased risks of macrosomia, large-for-gestational age (LGA), preterm birth (PTB), and reduced gestational age (p < 0.05). Pregnant women with MTHFR A1298C AA or C677T CT + TT genotypes were susceptible to adverse pregnancy outcomes related to HbA1c levels. Among pregnant women with the A1298C AA genotype, each standard deviation (SD) increase in HbA1c levels increased the risk of PTB by 1.32-times and reduced the gestational age by 0.11 weeks (p < 0.05). For MTHFR C677T CC + TT genotype carriers, higher HbA1c levels were associated with 1.49-, 1.24-, and 1.23-times increased risks of macrosomia, LGA, and PTB, respectively (p < 0.05). A U-shaped curve for PTB risk in relation to HbA1c levels was observed among the C677T CC + TT participants, with a cut-off value of 4.58%. Among subjects with the A1298C AA genotype combined with the C677T CT + TT genotype, each SD increase in HbA1c levels was associated with 1.40 and 1.37-times increased risks of LGA and PTB, respectively. CONCLUSIONS Our findings highlight the importance of glycaemic control during pregnancy and the potential impact of genetic factors on birth outcomes. However, further large-scale studies are required to confirm these findings.
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Affiliation(s)
- Weixiang Wu
- Department of Clinical Laboratory, Guangdong Women and Children Hospital, Guangzhou, China
| | - Dan Luo
- Department of Preventive Medicine, School of Public Health, Guangzhou Medical University, Guangzhou, China
| | - Cunwei Ji
- Department of Clinical Laboratory, Guangdong Women and Children Hospital, Guangzhou, China
| | - Fuqiang Diao
- Department of Clinical Laboratory, Guangdong Women and Children Hospital, Guangzhou, China
| | - Lihong Wu
- Department of Clinical Laboratory, Guangdong Women and Children Hospital, Guangzhou, China
| | - Xiaolin Ruan
- Department of Clinical Laboratory, Guangdong Women and Children Hospital, Guangzhou, China
| | - Chunming Gu
- Department of Clinical Laboratory, Guangdong Women and Children Hospital, Guangzhou, China
| | - Mingyong Luo
- Department of Clinical Laboratory, Guangdong Women and Children Hospital, Guangzhou, China
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Wu W, Luo D, Ruan X, Gu C, Lu W, Lian K, Mu X. Polymorphisms in gene MTHFR modify the association between gestational weight gain and adverse birth outcomes. Front Nutr 2022; 9:919651. [PMID: 36003833 PMCID: PMC9393737 DOI: 10.3389/fnut.2022.919651] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 07/22/2022] [Indexed: 11/13/2022] Open
Abstract
Evidence suggests a potential relationship between gestational weight gain (GWG) and adverse birth outcomes. However, the role of maternal genetic polymorphisms remains unclear. This study was conducted to investigate whether the relationship of GWG with risk of adverse birth outcomes was modified by methylenetetrahydrofolate reductase (MTHFR) polymorphisms. A total of 2,967 Chinese pregnant women were included and divided into insufficient, sufficient, and excessive groups based on the Institute of Medicine (IOM) criteria. Polymorphisms of C677T and A1298C in gene MTHFR were genotyped. Multivariable logistic regression models were introduced after controlling major confounders. Excessive GWG was found to increase the odds ratio (OR) for macrosomia [OR = 3.47, 95% confidence interval (CI): 1.86–6.48] and large-for-gestational age (LGA, OR = 3.25, 95% CI: 2.23–4.74), and decreased the OR for small-for-gestational age (SGA, OR = 0.60, 95% CI: 0.45–0.79). Pregnant women with insufficient GWG had a higher frequency of SGA (OR = 1.68, 95% CI: 1.32–2.13) and a lower rate of LGA (OR = 0.51, 95% CI: 0.27–0.96). Interestingly, significant associations of GWG categories in relation to low birth weight (LBW), macrosomia, and SGA were only suggested among pregnant women with MTHFR A1298C AA genotype. Among pregnant women with insufficient GWG group, an increased risk of 3.96 (95% CI: 1.57–10.01) for LBW was observed among subjects with the A1298C AA genotype, compared to the AC+CC genotype group. GWG categories are closely related to LBW, macrosomia, SGA and LGA, and the associations were modified by the polymorphism of MTHFR A1298C.
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Affiliation(s)
- Weixiang Wu
- Department of Clinical Laboratory, Guangdong Women and Children Hospital, Guangzhou, China
| | - Dan Luo
- Department of Preventive Medicine, School of Public Health, Guangzhou Medical University, Guangzhou, China
| | - Xiaolin Ruan
- Department of Clinical Laboratory, Guangdong Women and Children Hospital, Guangzhou, China
| | - Chunming Gu
- Department of Clinical Laboratory, Guangdong Women and Children Hospital, Guangzhou, China
| | - Weiming Lu
- Department of Clinical Laboratory, Guangdong Women and Children Hospital, Guangzhou, China
| | - Kailing Lian
- Medical Genetics Center, Guangdong Women and Children Hospital, Guangzhou, China
| | - Xiaoping Mu
- Department of Clinical Laboratory, Guangdong Women and Children Hospital, Guangzhou, China
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Evaluating the role of inherited thrombophilia genes with recurrent pregnancy loss among Egyptian couples. GENE REPORTS 2021. [DOI: 10.1016/j.genrep.2021.101355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Nikolaeva MG, Momot AP, Zainulina MS, Yasafova NN, Taranenko IA. Pregnancy complications in G20210A mutation carriers associated with high prothrombin activity. Thromb J 2021; 19:41. [PMID: 34090458 PMCID: PMC8180167 DOI: 10.1186/s12959-021-00289-4] [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] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 05/14/2021] [Indexed: 01/12/2023] Open
Abstract
OBJECTIVE To study the association between high activity of Factor II (prothrombin) in blood plasma with G20210A mutation and the development of great obstetrical syndromes. MATERIAL AND METHODS A prospective clinical cohort study was conducted on 290 pregnant women (average age 31.7 ± 4.7 years old). The main group was made up of 140 G20210A patients, while the control group comprised 150 women with the wild G20210G type. The aim was to evaluate the activity of Factor II in the venous blood plasma during the stages of pregnancy with regard to trophoblast invasion waves. As per results, association analysis of Factor II activity value and gestational complications was carried out. RESULTS In the control group, the median (Me) of Factor II activity ranged from 108% (preconception period) to 144% (pregnancy) [95% CI 130-150]. In patients with the GA type, the value was significantly higher in related periods, ranging from 149 to 181% [95% CI 142-195], p < 0.0001. With Factor II activity ranging from 148.5 to 180.6%, pregnancies in the main group had no complications. Higher levels of Factor II activity were associated with the development of early and/or severe preeclampsia (PE) and fetal growth retardation (FGR). CONCLUSION The data obtained regarding Factor II activity in blood plasma, juxtaposed with the development of great obstetrical syndromes, allow to assume that manifestation of G20210A in early and/or severe PE and FGR is associated with this coagulation factor's level of activity. Threshold value of the Factor II activity with G20210A mutation, allowing to predict the development of PE, comprised 171.0% at the preconception stage (AUC - 0.86; p < 0.0001) and within 7-8 weeks of gestation it was 181.3% (AUC - 0.84; p < 0.0001).
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Affiliation(s)
- M G Nikolaeva
- Altai Branch of FSBI "National Research Center for Hematology", Barnaul, Russia.
- FSBEI of Higher Education "Altai State Medical University", 40 Lenina Ave, Barnaul, 656038, Russia.
| | - A P Momot
- Altai Branch of FSBI "National Research Center for Hematology", Barnaul, Russia
- FSBEI of Higher Education "Altai State Medical University", 40 Lenina Ave, Barnaul, 656038, Russia
| | - M S Zainulina
- Saint Petersburg State-Financed Health Institution "Birth Centre № 6 named after Professor V.F. Snegireva", St Petersburg, Russia
- Obstetrics, Gynecology and Reproductive Medicine Department "Pavlov First Saint Petersburg State Medical University", St Petersburg, Russia
| | - N N Yasafova
- Altai Regional Clinical Hospital, Barnaul, Russia
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Mahmood S, Younas H, Younus A, Nathenial S. A narrative review on the role of folate-mediated one-carbon metabolism and its associated gene polymorphisms in posing risk to preeclampsia. Clin Exp Hypertens 2021; 43:487-504. [PMID: 34053381 DOI: 10.1080/10641963.2021.1916942] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Preeclampsia (PE) presents a major obstetrical problem for mother and fetus which is characterized by the onset of hypertension and proteinuria in formerly normotensive women. Altered folate-mediated one-carbon metabolism is one of the factors for PE development either due to nutritional insufficiencies such as folate deficiency or polymorphisms in genes that code for the key enzymes of the cycle. Commonly, there are four genes in the cycle whose polymorphisms have been described in relation to PE. These factors could cause elevation of homocysteine; the toxic metabolite, which subsequently leads to the development of PE. Sufficient levels of folate have been considered important during pregnancy and may reduce the risk of development of PE. This review aims at discussing genetic polymorphisms and nutritional deficiencies as probable predisposing factors and suggests considering fetal genotypes, varied ethnicities, and interaction of various other factors involved to render better conclusiveness to the present studies.
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Affiliation(s)
- Sadia Mahmood
- Department of Biochemistry, Kinnaird College for Women, Lahore, Pakistan
| | - Hooria Younas
- Department of Biochemistry, Kinnaird College for Women, Lahore, Pakistan
| | - Amna Younus
- Department of Biochemistry, Kinnaird College for Women, Lahore, Pakistan
| | - Sammar Nathenial
- Department of Biochemistry, Kinnaird College for Women, Lahore, Pakistan
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John-Olabode SO, Okunade KS, James A, Olorunfemi G, Ajie OI, Osuntoki AA, Akanmu AS. Prevalence of Factor V Leiden G1691A and Prothrombin G20210A Gene Mutation Among Pregnant Women: Experience from a Multi-Center Study in Nigeria. J Blood Med 2021; 12:307-312. [PMID: 34040475 PMCID: PMC8140909 DOI: 10.2147/jbm.s308997] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 04/16/2021] [Indexed: 11/23/2022] Open
Abstract
Introduction Inherited thrombophilia and venous thromboembolism (VTE) have been closely linked to adverse pregnancy outcomes such as preeclampsia/eclampsia contributing to increased maternal and perinatal morbidity and mortality. There is, however, little genetic data from Africa including Nigeria that explores the prevalence of common VTE genetic risk markers such as factor V Leiden mutation (FVL G1691A) and prothrombin gene mutation (F2 G20210A) among pregnant women in Nigeria. Purpose To determine the prevalence and distribution of FVL G1691A and F2 G20210A in pregnant women in Lagos, Nigeria. Patients and Methods This hospital-based cross-sectional pilot study was conducted among pregnant women between 1 July 2019 and 31 August 2020. The genotype of interest was determined through amplification by polymerase chain reaction using G1691A of FV and prothrombin A20210G specific primers. Descriptive data were presented using Stata version 15 (Stata Corp) statistical software. Results Of the 400 recruited participants, 397 and 389 samples were successfully processed for FVL G1691A and F2 G20210A mutations, respectively. Three participants had FVL heterozygous mutation; thus, the prevalence of heterozygous mutation of FVL among the study participants was 0.76%, 95% CI: 0.002-0.023%, n=3/397. There was no F2 G20210A mutation detected among the study participants. Conclusion This study indicates that screening for factor V Leiden mutation and prothrombin gene mutation in pregnancy might not be of any clinical significance among Nigerian women. However, carrying out a genome-wide associated study is recommended to determine the true impact of these two common inherited thrombophilias in this population.
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Affiliation(s)
- Sarah O John-Olabode
- Department of Hematology and Blood Transfusion, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Kehinde S Okunade
- Department of Obstetrics and Gynecology, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Ayorinde James
- Department of Biochemistry and Nutrition, Nigerian Institute of Medical Research, Lagos, Nigeria
| | - Gbenga Olorunfemi
- Division of Epidemiology and Biostatistics, School of Public Health, University of Witwatersrand, Johannesburg, South Africa
| | - Obiefuna I Ajie
- Department of Clinical Pathology, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Akinniyi A Osuntoki
- Department of Biochemistry, College of Medicine, University of Lagos, Lagos, Nigeria
| | - Alani S Akanmu
- Department of Hematology and Blood Transfusion, College of Medicine, University of Lagos, Lagos, Nigeria
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Abstract
Fetal growth restriction, also known as intrauterine growth restriction, is a common complication of pregnancy that has been associated with a variety of adverse perinatal outcomes. There is a lack of consensus regarding terminology, etiology, and diagnostic criteria for fetal growth restriction, with uncertainty surrounding the optimal management and timing of delivery for the growth-restricted fetus. An additional challenge is the difficulty in differentiating between the fetus that is constitutionally small and fulfilling its growth potential and the small fetus that is not fulfilling its growth potential because of an underlying pathologic condition. The purpose of this document is to review the topic of fetal growth restriction with a focus on terminology, etiology, diagnostic and surveillance tools, and guidance for management and timing of delivery.
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Melamed N, Baschat A, Yinon Y, Athanasiadis A, Mecacci F, Figueras F, Berghella V, Nazareth A, Tahlak M, McIntyre HD, Da Silva Costa F, Kihara AB, Hadar E, McAuliffe F, Hanson M, Ma RC, Gooden R, Sheiner E, Kapur A, Divakar H, Ayres‐de‐Campos D, Hiersch L, Poon LC, Kingdom J, Romero R, Hod M. FIGO (international Federation of Gynecology and obstetrics) initiative on fetal growth: best practice advice for screening, diagnosis, and management of fetal growth restriction. Int J Gynaecol Obstet 2021; 152 Suppl 1:3-57. [PMID: 33740264 PMCID: PMC8252743 DOI: 10.1002/ijgo.13522] [Citation(s) in RCA: 259] [Impact Index Per Article: 64.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Fetal growth restriction (FGR) is defined as the failure of the fetus to meet its growth potential due to a pathological factor, most commonly placental dysfunction. Worldwide, FGR is a leading cause of stillbirth, neonatal mortality, and short- and long-term morbidity. Ongoing advances in clinical care, especially in definitions, diagnosis, and management of FGR, require efforts to effectively translate these changes to the wide range of obstetric care providers. This article highlights agreements based on current research in the diagnosis and management of FGR, and the areas that need more research to provide further clarification of recommendations. The purpose of this article is to provide a comprehensive summary of available evidence along with practical recommendations concerning the care of pregnancies at risk of or complicated by FGR, with the overall goal to decrease the risk of stillbirth and neonatal mortality and morbidity associated with this condition. To achieve these goals, FIGO (the International Federation of Gynecology and Obstetrics) brought together international experts to review and summarize current knowledge of FGR. This summary is directed at multiple stakeholders, including healthcare providers, healthcare delivery organizations and providers, FIGO member societies, and professional organizations. Recognizing the variation in the resources and expertise available for the management of FGR in different countries or regions, this article attempts to take into consideration the unique aspects of antenatal care in low-resource settings (labelled “LRS” in the recommendations). This was achieved by collaboration with authors and FIGO member societies from low-resource settings such as India, Sub-Saharan Africa, the Middle East, and Latin America.
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Affiliation(s)
- Nir Melamed
- Division of Maternal Fetal MedicineDepartment of Obstetrics and GynecologySunnybrook Health Sciences CentreUniversity of TorontoTorontoONCanada
| | - Ahmet Baschat
- Center for Fetal TherapyDepartment of Gynecology and ObstetricsJohns Hopkins UniversityBaltimoreMDUSA
| | - Yoav Yinon
- Fetal Medicine UnitDepartment of Obstetrics and GynecologySheba Medical CenterTel‐HashomerSackler Faculty of MedicineTel‐Aviv UniversityTel AvivIsrael
| | - Apostolos Athanasiadis
- Third Department of Obstetrics and GynecologyAristotle University of ThessalonikiThessalonikiGreece
| | - Federico Mecacci
- Maternal Fetal Medicine UnitDivision of Obstetrics and GynecologyDepartment of Biomedical, Experimental and Clinical SciencesUniversity of FlorenceFlorenceItaly
| | - Francesc Figueras
- Maternal‐Fetal Medicine DepartmentBarcelona Clinic HospitalUniversity of BarcelonaBarcelonaSpain
| | - Vincenzo Berghella
- Division of Maternal‐Fetal MedicineDepartment of Obstetrics and GynecologyThomas Jefferson UniversityPhiladelphiaPAUSA
| | - Amala Nazareth
- Jumeira Prime Healthcare GroupEmirates Medical AssociationDubaiUnited Arab Emirates
| | - Muna Tahlak
- Latifa Hospital for Women and ChildrenDubai Health AuthorityEmirates Medical AssociationMohammad Bin Rashid University for Medical Sciences, Dubai, United Arab Emirates
| | | | - Fabrício Da Silva Costa
- Department of Gynecology and ObstetricsRibeirão Preto Medical SchoolUniversity of São PauloRibeirão PretoSão PauloBrazil
| | - Anne B. Kihara
- African Federation of Obstetricians and GynaecologistsKhartoumSudan
| | - Eran Hadar
- Helen Schneider Hospital for WomenRabin Medical CenterPetach TikvaIsrael
- Sackler Faculty of MedicineTel‐Aviv UniversityTel AvivIsrael
| | - Fionnuala McAuliffe
- UCD Perinatal Research CentreSchool of MedicineNational Maternity HospitalUniversity College DublinDublinIreland
| | - Mark Hanson
- Institute of Developmental SciencesUniversity Hospital SouthamptonSouthamptonUK
- NIHR Southampton Biomedical Research CentreUniversity of SouthamptonSouthamptonUK
| | - Ronald C. Ma
- Department of Medicine and TherapeuticsThe Chinese University of Hong KongHong Kong SARChina
- Hong Kong Institute of Diabetes and ObesityThe Chinese University of Hong KongHong Kong SARChina
| | - Rachel Gooden
- FIGO (International Federation of Gynecology and Obstetrics)LondonUK
| | - Eyal Sheiner
- Soroka University Medical CenterBen‐Gurion University of the NegevBe’er‐ShevaIsrael
| | - Anil Kapur
- World Diabetes FoundationBagsværdDenmark
| | | | | | - Liran Hiersch
- Sourasky Medical Center and Sackler Faculty of MedicineLis Maternity HospitalTel Aviv UniversityTel AvivIsrael
| | - Liona C. Poon
- Department of Obstetrics and GynecologyPrince of Wales HospitalThe Chinese University of Hong KongShatinHong Kong SAR, China
| | - John Kingdom
- Division of Maternal Fetal MedicineDepartment of Obstetrics and GynecologyMount Sinai HospitalUniversity of TorontoTorontoONCanada
| | - Roberto Romero
- Perinatology Research BranchEunice Kennedy Shriver National Institute of Child Health and Human DevelopmentNational Institutes of HealthU.S. Department of Health and Human ServicesBethesdaMDUSA
| | - Moshe Hod
- Helen Schneider Hospital for WomenRabin Medical CenterPetach TikvaIsrael
- Sackler Faculty of MedicineTel‐Aviv UniversityTel AvivIsrael
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Trasca LF, Poenaru E, Patrascu N, Cirstoiu M, Vinereanu D. A comprehensive echocardiographic study of the right ventricular systolic function in pregnant women with inherited thrombophilia. Echocardiography 2020; 37:1037-1042. [PMID: 32596919 DOI: 10.1111/echo.14783] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 05/04/2020] [Accepted: 06/08/2020] [Indexed: 01/10/2023] Open
Abstract
Impact of the gestational changes on cardiac contractility is not clearly defined. Our aim was to evaluate subtle changes of the right ventricular systolic function during pregnancy, assessed by new echocardiographic techniques, in a population tested for inherited thrombophilia. 87 pregnant women, with a mean age of 32 ± 4 years, genetically tested for inherited thrombophilia (22 with high-risk inherited thrombophilia and 65 control group) were included. All participants had four echocardiographic assessments, three during pregnancy (one in each trimester) and the forth at 6 months after giving birth. The right ventricular (RV) systolic function was assessed by fractional area change, ejection fraction (EF) by 3D echocardiography, tricuspid annular velocity by tissue Doppler, tricuspid annular plane systolic excursion, and strain by speckle tracking. Pulmonary artery pressure was estimated using the pressure gradient between right atrium and RV. Parameters of RV systolic function, at visits 2-4, had lower values compared with the first visit and were significantly lower in the high-risk thrombophilia group. Tricuspid regurgitation and pressure gradient between the right atrium and the RV had a significant increase during pregnancy for all subjects. At visit 1, there were no differences between groups, but at the next three visits there were higher values of the gradient in the high-risk thrombophilia group. High-risk inherited thrombophilia impacts the RV contractility, with higher pulmonary artery pressure. Further studies are needed to assess long-term impact on RV of high-risk inherited thrombophilia.
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Affiliation(s)
| | - Elena Poenaru
- University of Medicine and Pharmacy Carol Davila, Bucharest, Romania
| | - Natalia Patrascu
- University of Medicine and Pharmacy Carol Davila, Bucharest, Romania
| | - Monica Cirstoiu
- University of Medicine and Pharmacy Carol Davila, Bucharest, Romania.,University and Emergency Hospital of Bucharest, Bucharest, Romania
| | - Dragos Vinereanu
- University of Medicine and Pharmacy Carol Davila, Bucharest, Romania.,University and Emergency Hospital of Bucharest, Bucharest, Romania
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Voicu DI, Munteanu O, Gherghiceanu F, Arsene LV, Bohiltea RE, Gradinaru DM, Cirstoiu MM. Maternal inherited thrombophilia and pregnancy outcomes. Exp Ther Med 2020; 20:2411-2414. [PMID: 32765725 DOI: 10.3892/etm.2020.8747] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 04/09/2020] [Indexed: 11/05/2022] Open
Abstract
Thrombophilia is a group of genetical disorders that cause blood to clot abnormally. Thrombophilia is linked to recurrent pregnancy loss, foetal growth restriction, late miscarriages, stillbirth and preeclampsia. Clinicians usually apply the term thrombophilia only to patients with atypical thrombosis. A successful outcome of pregnancy requires an efficient uteroplacental circulation. Since this system may be compromised by disorders associated with a prothrombotic state, it was postulated that maternal thrombophilia might be a risk factor for preeclampsia and intrauterine growth retardation. The study included 459 pregnant women with gestational ages ranging from 14 weeks to 28 weeks and the patients in the study were tested for hereditary thrombophilia. The type of thrombophilic mutation most common found was the MTHFR mutation (25.7%), followed by the prothrombin gene mutation (20.9%) and the Leiden factor V mutation (15.7%). Also 15.03% patients had been diagnosed with preeclampsia and 6.75% of the pregnant women had IUGR fetuses.
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Affiliation(s)
- Diana Ioana Voicu
- Department of Obstetrics and Gynecology, University Emergency Hospital of Bucharest, 050098 Bucharest, Romania.,Department of Obstetrics and Gynecology, Doctoral School of 'Carol Davila' University of Medicine and Pharmacy, 050098 Bucharest, Romania
| | - Octavian Munteanu
- Department of Obstetrics and Gynecology, University Emergency Hospital of Bucharest, 050098 Bucharest, Romania.,Department of Anatomy, 'Carol Davila' University of Medicine and Pharmacy, 050098 Bucharest, Romania
| | - Florentina Gherghiceanu
- Department of Marketing and Medical Technology, 'Carol Davila' University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Luciana Valentina Arsene
- Department of Obstetrics and Gynecology, University Emergency Hospital of Bucharest, 050098 Bucharest, Romania.,Department of Obstetrics and Gynecology, Doctoral School of 'Carol Davila' University of Medicine and Pharmacy, 050098 Bucharest, Romania
| | - Roxana Elena Bohiltea
- Department of Obstetrics and Gynecology, University Emergency Hospital of Bucharest, 050098 Bucharest, Romania.,Obstetrics and Gynecology, 'Carol Davila' University of Medicine and Pharmacy, 050474 Bucharest, Romania
| | - Delia Maria Gradinaru
- Department of Obstetrics and Gynecology, University Emergency Hospital of Bucharest, 050098 Bucharest, Romania
| | - Monica Mihaela Cirstoiu
- Department of Obstetrics and Gynecology, University Emergency Hospital of Bucharest, 050098 Bucharest, Romania.,Obstetrics and Gynecology, 'Carol Davila' University of Medicine and Pharmacy, 050474 Bucharest, Romania
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Uterine Radial Artery Resistance Index Predicts Reproductive Outcome in Women with Recurrent Pregnancy Losses and Thrombophilia. BIOMED RESEARCH INTERNATIONAL 2019; 2019:8787010. [PMID: 31534965 PMCID: PMC6724444 DOI: 10.1155/2019/8787010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 05/30/2019] [Indexed: 11/18/2022]
Abstract
Uterine radial artery resistance index (URa-RI) by Doppler ultrasound may reflect the changes in the uteroplacental circulation and be associated with adverse events in early pregnancy. Recurrent pregnancy losses (RPL) are associated with thrombophilia, and anticoagulation treatment with low molecular weight heparin improves pregnancy outcome in women with RPL and thrombophilia. A retrospective cohort study was conducted in 139 pregnant women with 3 or more RPL and thrombophilia. The relationship between pregnancy outcome and dynamic changes of URa-RI was analyzed in 116 women who delivered a liveborn infant and 23 who miscarried the index pregnancy. Patients were on preconception low molecular weight heparin, low-dose aspirin (81mg per day), and prednisone treatment. URa-RI was measured during periovulation time, at the time of positive pregnancy test, and then repeated every two weeks until 32-week gestation or the time of miscarriage. The URa-RI at 8-week gestation was significantly higher in women who miscarried the index pregnancy than those who delivered alive born infant (0.51±0.08 vs. 0.42±0.03, P<0.001). Receiver operating characteristic curve analysis demonstrated that URa-RI of 8 wk gestation effectively distinguished women who miscarried from those who had a live birth with an area under the curve of 82.6% (95% CI 69.01-97.17). After adjusting for covariates including age, BMI, and number of miscarriages, multiple logistic regression models showed that each 0.1 unit increase of URa-RI of 8 wk gestation was associated with 18.70-point increase in the risk of miscarriage (OR19.70, 95%CI 4.26-91.1, P<0.001), and women with an URa-RI≥0.45 had an OR of 49.48 (95% CI 8.01-307.95; P<0.001) for miscarriage compared to those who had URa-RI<0.45. In women with RPL and inherited thrombophilia, increased URa-RI at 8-week gestation was associated with spontaneous abortion independent of other risk factors while they were on anticoagulation treatment.
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Placenta-mediated pregnancy complications are not associated with fetal or paternal factor V Leiden mutation. Eur J Obstet Gynecol Reprod Biol 2018; 230:32-35. [PMID: 30243226 DOI: 10.1016/j.ejogrb.2018.09.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 08/10/2018] [Accepted: 09/10/2018] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Maternal thrombophilia is a risk factor for adverse pregnancy outcomes. The aim of this study was to elucidate the controversial role of fetal and paternal thrombophilia in the development of severe placenta-mediated pregnancy complications. STUDY DESIGN The study group comprised 126 mothers, 72 fetuses and 58 fathers. 111 mothers, 50 fetuses and 91 fathers acted as controls. 106 couples were selected to study the thrombophilias of paternal inheritance, 58 from the study group and 48 from the control group. The prevalence of factor V Leiden mutation, prothrombin G20210 A mutation and homozygous 10-methylenetetrahydrofolate reductase C677 T mutations were compared between the study and control groups to study whether maternal, fetal or paternal thrombophilias increase the risk of severe preeclampsia, intrauterine growth restriction, placental abruption and stillbirth. RESULTS The total prevalence of fetal thrombophilic mutations was 8.3% in the study group and 14.0% in the control group. Paternal prevalence of thrombophilic mutations was 6.8% and 4.3%, respectively. There were no statistical differences between fetal or paternal thrombophilic mutations between the study and control groups. CONCLUSION Fetal or paternal factor V Leiden mutation is not associated with severe placenta-mediated pregnancy complications.
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Baptista FS, Bortolotto MRDFL, Bianchini FRM, Krebs VLJ, Zugaib M, Francisco RPV. Can thrombophilia worsen maternal and perinatal outcomes in cases of severe preeclampsia? Pregnancy Hypertens 2018. [DOI: 10.1016/j.preghy.2017.12.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Maternal Vascular Malperfusion and Adverse Perinatal Outcomes in Low-Risk Nulliparous Women. Obstet Gynecol 2017; 130:1112-1120. [PMID: 29016509 DOI: 10.1097/aog.0000000000002264] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To evaluate the disease burden of placental maternal vascular malperfusion pathology in a low-risk nulliparous population and test the hypothesis that a multiparameter model in the second trimester can predict maternal vascular malperfusion with high precision. METHODS A single-center, prospective cohort study was conducted in healthy nulliparous women. Maternal vascular malperfusion disease burden was estimated by incidence, relative risk (RR), and population-attributable risk percent. Maternal risk factors, serum biomarkers, Doppler, and placental morphologic ultrasonography were examined in isolation and in combination for prediction of this placental pathology. RESULTS The incidence of maternal vascular malperfusion pathology was 8.4% (72/856). Women with pathology had higher risk of preeclampsia (8.33% compared with 1.79%; RR 4.67, 95% CI 1.85-11.77%; population-attributable risk 23.6%, 95% CI 16.9-31.6%), small for gestational age (SGA) (47.22% compared with 9.45%; RR 5.00, 95% CI 3.6-6.93%; population-attributable risk 25.2%, 95% CI 22.1-28.5%), and the composite of adverse outcomes (defined as SGA or preeclampsia) (47.22% compared with 10.59%; RR 4.46, 95% CI 3.25-6.13; population-attributable risk 22.5%, 95% CI 19.8-25.5%). The combination of parameters was superior to individual modalities alone in predicting maternal vascular malperfusion, but achieved only moderate precision (area under the curve 0.77, 95% CI 0.71-0.84). CONCLUSION One in 12 healthy nulliparous women develop maternal vascular malperfusion placental pathology, and these pregnancies had a 4.5 times higher risk of developing preeclampsia or delivering a SGA neonate compared with those without this pathology. A multiparameter model achieved modest precision to predict placental maternal vascular malperfusion. Importantly, in low-risk pregnancies, maternal vascular malperfusion accounts for one fourth of pregnancy outcomes with SGA or preeclampsia. The low population-attributable risk of this placental pathology for SGA and preeclampsia illustrates the importance of discovering novel associations to reduce the disease burden of these pregnancy complications.
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Baczyk D, Audette MC, Drewlo S, Levytska K, Kingdom JC. SUMO-4: A novel functional candidate in the human placental protein SUMOylation machinery. PLoS One 2017; 12:e0178056. [PMID: 28545138 PMCID: PMC5435238 DOI: 10.1371/journal.pone.0178056] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 05/08/2017] [Indexed: 11/19/2022] Open
Abstract
Background Small ubiquitin-like modifiers (SUMOs) conjugate to proteins post-translationally, thereby affecting target localization, activity and stability. Functional SUMO family members identified in the human placenta include SUMO-1 to SUMO-3, which are elevated in pre-eclampsia. Whether the fourth isoform, SUMO-4, plays a role in placental development and function remains unknown. Objectives We tested the hypothesis that SUMO-4 is expressed in the human placenta and demonstrates altered SUMOylation in pre-eclamptic pregnancies. Methods SUMO-4 mRNA (qRT-PCR) and protein (Western blot and immunohistochemistry) were measured in Jar cells, BeWo cells, first trimester placental villous explants and placental tissues across normal gestation and in pre-eclampsia. SUMO-4 expression in response to oxidative stress (H2O2: 0, 0.1, 1 and 5mM), as well as, hypoxia-reperfusion (O2: 1%, 8% and 20%) was measured. Lastly, SUMO-4 binding (covalently vs. non-covalently) to target proteins was investigated. Results SUMO-4 mRNA and protein were unchanged across gestation. SUMO-4 was present in the villous trophoblast layer throughout gestation. SUMO-4 mRNA expression and protein levels were increased ~2.2-fold and ~1.8-fold in pre-eclamptic placentas compared to age-matched controls, respectively (p<0.01). SUMO-4 mRNA and protein expression increased in Jars, BeWos and first trimester placental explants with 5mM H2O2 treatment, as well as with exposure to hypoxia-reperfusion. SUMO-1 to SUMO-3 did not show consistent trends across models. SUMO-4 hyper-SUMOylation was predominantly covalent in nature. Conclusions SUMO-4 is expressed in normal placental development. SUMO-4 expression was increased in pre-eclamptic placentas and in models of oxidative stress and hypoxic injury. These data suggests that SUMO-4 hyper-SUMOylation may be a potential post-translational mechanism in the stressed pre-eclamptic placenta.
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Affiliation(s)
- Dora Baczyk
- Program in Development and Fetal Health, Lunenfeld–Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Canada
| | - Melanie C. Audette
- Program in Development and Fetal Health, Lunenfeld–Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Canada
- Faculty of Medicine, University of Toronto, Toronto, Canada
- * E-mail:
| | - Sascha Drewlo
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, United States of America
| | - Khrystyna Levytska
- Program in Development and Fetal Health, Lunenfeld–Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Canada
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, United States of America
| | - John C. Kingdom
- Program in Development and Fetal Health, Lunenfeld–Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Canada
- Faculty of Medicine, University of Toronto, Toronto, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
- Maternal-Fetal Medicine Division, Department of Obstetrics and Gynecology, Mount Sinai Hospital, Toronto, Canada
- Department of Obstetrics and Gynecology, University of Toronto, Toronto, Canada
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Silver RM, Saade GR, Thorsten V, Parker CB, Reddy UM, Drews-Botsch C, Conway D, Coustan D, Dudley DJ, Bukowski R, Rowland Hogue CJ, Pinar H, Varner MW, Goldenberg R, Willinger M. Factor V Leiden, prothrombin G20210A, and methylene tetrahydrofolate reductase mutations and stillbirth: the Stillbirth Collaborative Research Network. Am J Obstet Gynecol 2016; 215:468.e1-468.e17. [PMID: 27131585 DOI: 10.1016/j.ajog.2016.04.026] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 04/18/2016] [Accepted: 04/19/2016] [Indexed: 10/21/2022]
Abstract
BACKGROUND An evaluation for heritable thrombophilias is recommended in the evaluation of stillbirth. However, the association between thrombophilias and stillbirth remains uncertain. OBJECTIVE We sought to assess the association between maternal and fetal/placental heritable thrombophilias and stillbirth in a population-based, case-control study in a geographically, racially, and ethnically diverse population. STUDY DESIGN We conducted secondary analysis of data from the Stillbirth Collaborative Research Network, a population-based case-control study of stillbirth. Testing for factor V Leiden, prothrombin G20210A, methylene tetrahydrofolate reductase C677T and A1298C, and plasminogen activating inhibitor (PAI)-1 4G/5G mutations was done on maternal and fetal (or placental) DNA from singleton pregnancies. Data analyses were weighted for oversampling and other aspects of the design. Odds ratios (OR) were generated from univariate models regressing stillbirth/live birth status on each thrombophilia marker. RESULTS Results were available for ≥1 marker in 488 stillbirths and 1342 live birth mothers and 405 stillbirths and 990 live birth fetuses. There was an increased odds of stillbirth for maternal homozygous factor V Leiden mutation (2/488; 0.4% vs 1/1380; 0.0046%; OR, 87.44; 95% confidence interval, 7.88-970.92). However, there were no significant differences in the odds of stillbirth for any other maternal thrombophilia, even after stratified analyses. Fetal 4G/4G PAI-1 (OR, 0.63; 95% confidence interval, 0.43-0.91) was associated with decreased odds of stillbirth. Other fetal thrombophilias were similar among groups. CONCLUSION Most maternal and fetal thrombophilias were not associated with stillbirth. Maternal factor V Leiden was weakly associated with stillbirth, and the fetal PAI-1 4G/4G polymorphism was associated with live birth. Our data do not support routine testing for heritable thrombophilias as part of an evaluation for possible causes of stillbirth.
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Blondon M, Casini A, Hoppe KK, Boehlen F, Righini M, Smith NL. Risks of Venous Thromboembolism After Cesarean Sections: A Meta-Analysis. Chest 2016; 150:572-96. [DOI: 10.1016/j.chest.2016.05.021] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 05/17/2016] [Accepted: 05/23/2016] [Indexed: 12/22/2022] Open
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Dixon SG, Bruce CT, Glueck CJ, Sisk RA, Hutchins RK, Jetty V, Wang P. Retinal vascular occlusion: a window to diagnosis of familial and acquired thrombophilia and hypofibrinolysis, with important ramifications for pregnancy outcomes. Clin Ophthalmol 2016; 10:1479-86. [PMID: 27563233 PMCID: PMC4984829 DOI: 10.2147/opth.s106969] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Aim Our specific aim was to document the pathoetiologic importance of thrombophilia among females presenting with severe ischemic retinal vein (RVO) or retinal artery (RAO) occlusion, without typical risk factors, and to emphasize that the ophthalmologists’ diagnosis of thrombophilia has important diagnostic and therapeutic downstream ramifications for nonocular thrombosis, including reproductive outcomes. Methods We evaluated familial and acquired thrombophilia in 60 females with RVO (central RVO, n=52; branch RVO, n=8) and 16 with RAO (central RAO, n=11; branch RAO, n=5). They were referred by retinologists, without typical risk factors for RVO/RAO and/or severe ocular ischemic presentation. We focused on extraocular thrombotic events, particularly pregnancy complications, including unexplained spontaneous abortion, pre-eclampsia–eclampsia. Thrombophilia measurements in the 76 females were compared with 62 healthy normal females without ocular vascular occlusions (OVOs). Results The 76 females with OVO were more likely than 62 normal female controls to have high homocysteine (24% vs 0%, P<0.0001), high anticardiolipin antibody (immunoglobulin M, 17% vs 3%, P=0.012), high (>150%) factor VIII (42% vs 11%, P<0.0001), and high (>150%) factor XI (22% vs 4%, P=0.004). Of the 76 females, 26 (34%) had ≥1 spontaneous abortion; 17 (22%) had ≥2 spontaneous abortions and/or pre-eclampsia–eclampsia. Compared to 62 healthy female controls, these 17 females with pregnancy complications had high homocysteine (29% vs 0%, P=0.0003), high anticardiolipin antibody immunoglobulin M (24% vs 3%, P=0.02), high factor VIII (38% vs 11%, P=0.02), and were marginally more likely to be heterozygous for the factor V Leiden mutation (19% vs 3%, P=0.058). Conclusion In females lacking typical risk factors for retinal vascular occlusion or severely ischemic presentation, by diagnosing thrombophilia as an etiology for OVO, the ophthalmologist opens a window to family screening and preventive therapy, with particular relevance to pregnancy outcomes and venous thromboembolism.
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Affiliation(s)
- Stephan G Dixon
- Cholesterol, Metabolism, and Thrombosis Center, Jewish Hospital of Cincinnati
| | - Carl T Bruce
- Cholesterol, Metabolism, and Thrombosis Center, Jewish Hospital of Cincinnati
| | - Charles J Glueck
- Cholesterol, Metabolism, and Thrombosis Center, Jewish Hospital of Cincinnati
| | - Robert A Sisk
- Cincinnati Eye Institute; Department of Ophthalmology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Robert K Hutchins
- Cincinnati Eye Institute; Department of Ophthalmology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Vybhav Jetty
- Cholesterol, Metabolism, and Thrombosis Center, Jewish Hospital of Cincinnati
| | - Ping Wang
- Cholesterol, Metabolism, and Thrombosis Center, Jewish Hospital of Cincinnati
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Abstract
Physiologic changes of pregnancy result in a hypercoagulable state, placing the risk for venous thromboembolic events at 1 in 1600 births. Venous thromboembolic events are one of the leading causes of maternal mortality. A correlation among venous thromboembolic events, pregnancy complications, and inherited thrombophilia continues to be investigated. This article primarily focuses on the impact of inherited thrombophilias on pregnancy, labor, and birth and yet also addresses acquired thrombophilia. Prophylactic and therapeutic perinatal anticoagulation are lifesaving and pregnancy-sparing interventions. Interprofessional management of these high-risk pregnancies allows for increased surveillance to reduce perinatal morbidity and mortality.
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Effects of anticoagulant therapy on pregnancy outcomes in patients with thrombophilia and previous poor obstetric history. Blood Coagul Fibrinolysis 2015; 26:267-73. [PMID: 25268607 DOI: 10.1097/mbc.0000000000000219] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
This study investigates the effects of anticoagulant therapy on pregnancy outcomes in 204 patients with thrombophilia and previous poor obstetric outcomes. Patients with poor obstetric history (pre-eclampsia, intrauterine growth retardation, fetal death, placental abruption, recurrent pregnancy loss) and having hereditary thrombophilia were included in this study. Poor obstetric outcomes were observed more frequently in patients who had not taken anticogulant therapy compared with treated group. Live birth rate, gestational age at birth and Apgar scores were significantly higher in the treated group when compared with the untreated group. There were no significant differences in terms of birthweight, mode of delivery and admission rates to the neonatal intensive care unit (NICU). Low-molecular-weight heparin (LMWH) plus acetylsalicylic acid (ASA) had higher gestational age at birth, Apgar scores, live birth rate and a lower abortion rates when compared with controls; in contrast, no significant difference was observed in terms of birthweight, mode of delivery, obstetric complications and admission rates to NICU. There were no significant differences between control group and both LMWH only and ASA only groups in terms of gestational age at birth, Apgar scores, birthweight, mode of delivery, obstetric complications and admission rates to NICU. Only LMWH group had higher live birth rate as compared with control group. The use of only ASA did not seem to affect the perinatal complication rates and outcomes. In conclusion, anticoagulant therapy with both LMWH and ASA seems to provide better obstetric outcomes in pregnant women with thrombophilia and previous poor obstetric outcomes.
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Demura TA, Kogan EA, Zanozin AS, Kolosovsky DY, Faizullina NM, Kalinina EA. [The role of inherited thrombophilia and undifferentiated connective tissue dysplasia syndrome in the pathogenesis of female infertility: A clinical and morphological study]. Arkh Patol 2015; 77:3-10. [PMID: 26485774 DOI: 10.17116/patol20157743-10] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
UNLABELLED Impaired endometrial receptivity is a major cause of reproductive losses in in vitro fertilization (IVF) cycles given a normal embryo. Its causes may be associated with many diseases, including inherited thrombophilia (IT) and undifferentiated connective tissue dysplasia syndrome (uCTDS). However, endometrial receptivity remains little studied. OBJECTIVE to investigate the morphological and immunohistochemical substrates of impaired endometrial receptivity in women with uCTDS, IT, and their concurrence. SUBJECTS AND METHODS Antibodies against ER, PgR, LIF, VEGF, and PAI-1 were used to morphologically and immunohistochemically examine pipelle endometrial biopsy specimens taken from 141 women in the implantation window (on days 6-7 after ovulation). In accordance with their clinical diagnoses, the patients were divided into 4 groups: 1) 13 patients with uCTDS; 2) 100 with IT; 3) 19 with uCTDS and IT; 4) 9 healthy surrogate mothers (a control group). In the examined groups, a total of 145 (90.1%) out of all the IVF protocols were unsuccessful. In the remaining 16 (9.9%) patients without exception, miscarriage started at less than 10 weeks' gestation. RESULTS In the implantation window, the endometrium was immature in 101 (83.1%) women and corresponded to late proliferation or early secretion phases; 102 (84.3%) women were also found to have no mature pinopodes, pointing to the fact that the endometrial receptivity was very low. Immunohistochemical examination revealed the lower expression of the receptivity marker LIF in the endometrial surface epithelium and its higher expression in the stroma in the study groups (p < 0.05 for the uCTDS and uCTDS+IT groups) and the higher expression of PAI-1 and VEGF in the epithelium, stroma, and endothelium in the study groups than in the control group (p < 0.05), suggesting the intensity of neoangiogenetic processes and impaired fibrinolysis in these patients. CONCLUSION uCTDS and IT are risk factors of impaired endometrial receptivity in the pathogenesis of infertility. The manifestations of impaired endometrial receptivity in this case are a decrease in mature pinopodes in the surface epithelium; focal stromal sclerosis; and redistribution of the receptivity marker LIF from the surface epithelium to the stroma, which may be used for diagnosis, prediction, and the development of targeted therapy.
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Affiliation(s)
- T A Demura
- I.M. Sechenov First Moscow State Medical University, Ministry of Health of Russia, Moscow; V.I. Kulakov Research Center of Obstetrics, Gynecology, and Perinatology, Ministry of Health of Russia, Moscow
| | - E A Kogan
- I.M. Sechenov First Moscow State Medical University, Ministry of Health of Russia, Moscow; V.I. Kulakov Research Center of Obstetrics, Gynecology, and Perinatology, Ministry of Health of Russia, Moscow
| | - A S Zanozin
- I.M. Sechenov First Moscow State Medical University, Ministry of Health of Russia, Moscow
| | | | - N M Faizullina
- V.I. Kulakov Research Center of Obstetrics, Gynecology, and Perinatology, Ministry of Health of Russia, Moscow
| | - E A Kalinina
- V.I. Kulakov Research Center of Obstetrics, Gynecology, and Perinatology, Ministry of Health of Russia, Moscow
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Marseglia LM, Nicotera A, Salpietro V, Giaimo E, Cardile G, Bonsignore M, Alibrandi A, Caccamo D, Manti S, D'Angelo G, Mamì C, Di Rosa G. Hyperhomocysteinemia and MTHFR polymorphisms as antenatal risk factors of white matter abnormalities in two cohorts of late preterm and full term newborns. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2015:543134. [PMID: 25829992 PMCID: PMC4338403 DOI: 10.1155/2015/543134] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Revised: 01/29/2015] [Accepted: 01/29/2015] [Indexed: 12/26/2022]
Abstract
Higher total homocysteine (tHcy) levels, and C677T and A1298C methylenetetrahydrofolate (MTHFR) polymorphisms, have been reported in preterm or full term newborns with neonatal encephalopathy following perinatal hypoxic-ischemic insult. This study investigated the causal role of tHcy and MTHFR polymorphisms together with other acquired risk factors on the occurrence of brain white matter abnormalities (WMA) detected by cranial ultrasound scans (cUS) in a population of late preterm and full term infants. A total of 171 newborns (81 M, 47.4%), 45 (26.3%) born <37 wks, and 126 (73.7%) born ≥37 wks were recruited in the study. cUS detected predominant WMA pattern in 36/171 newborns (21.1%) mainly characterized by abnormal periventricular white matter signal and mild-to-moderate periventricular white matter volume loss with ventricular dilatation (6/36, 16.6%). WMA resulted in being depending on tHcy levels (P < 0.014), lower GA (P < 0.000), lower Apgar score at 1 minutes (P < 0.000) and 5 minutes (P < 0.000), and 1298AC and 677CT/1298AC genotypes (P < 0.000 and P < 0.000). In conclusion, both acquired and genetic predisposing antenatal factors were significantly associated with adverse neonatal outcome and WMA. The role of A1298C polymorphism may be taken into account for prenatal assessment and treatment counseling.
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Affiliation(s)
- Lucia M. Marseglia
- Department of Pediatric, Gynecological, Microbiological and Biomedical Sciences, Unit of Neonatal Intensive Care, University of Messina, Messina, Italy
| | - Antonio Nicotera
- Department of Pediatric, Gynecological, Microbiological and Biomedical Sciences, Unit of Child Neurology and Psychiatry, University of Messina, Messina, Italy
| | - Vincenzo Salpietro
- Department of Pediatric, Gynecological, Microbiological and Biomedical Sciences, Unit of Pediatric Genetics and Immunology, University of Messina, Messina, Italy
| | - Elisa Giaimo
- Department of Pediatric, Gynecological, Microbiological and Biomedical Sciences, Unit of Child Neurology and Psychiatry, University of Messina, Messina, Italy
| | - Giovanna Cardile
- Department of Pediatric, Gynecological, Microbiological and Biomedical Sciences, Unit of Child Neurology and Psychiatry, University of Messina, Messina, Italy
| | - Maria Bonsignore
- Department of Pediatric, Gynecological, Microbiological and Biomedical Sciences, Unit of Child Neurology and Psychiatry, University of Messina, Messina, Italy
| | - Angela Alibrandi
- Department of Economical, Business and Environmental Sciences and Quantitative Methods, University of Messina, Messina, Italy
| | - Daniela Caccamo
- Department of Biomedical Sciences and Morpho-Functional Imaging, University of Messina, Messina, Italy
| | - Sara Manti
- Department of Pediatric, Gynecological, Microbiological and Biomedical Sciences, Unit of Neonatal Intensive Care, University of Messina, Messina, Italy
| | - Gabriella D'Angelo
- Department of Pediatric, Gynecological, Microbiological and Biomedical Sciences, Unit of Neonatal Intensive Care, University of Messina, Messina, Italy
| | - Carmelo Mamì
- Department of Pediatric, Gynecological, Microbiological and Biomedical Sciences, Unit of Neonatology, University of Messina, Messina, Italy
| | - Gabriella Di Rosa
- Department of Pediatric, Gynecological, Microbiological and Biomedical Sciences, Unit of Child Neurology and Psychiatry, University of Messina, Messina, Italy
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Rodger M. Pregnancy and venous thromboembolism: 'TIPPS' for risk stratification. HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2014; 2014:387-392. [PMID: 25696883 DOI: 10.1182/asheducation-2014.1.387] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Pregnancy-associated venous thromboembolism (VTE) is a leading cause of maternal mortality, but is relatively uncommon. It is clear that the antepartum and postpartum periods have different magnitudes of risk and distinct risk factors for VTE and therefore must be considered separately. Absolute daily risks of VTE must be understood and explored when deciding to prescribe antepartum or postpartum thromboprophylaxis and must also be balanced against the downsides of prophylaxis. When the risks for VTE and bleeding are both low, other burdens of thromboprophylaxis must be weighed in and a decision made after an individualized patient values- and patient preferences-based discussion. Risk stratification is essential to ensure that the practicing clinician strikes the right balance.
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Affiliation(s)
- Marc Rodger
- Ottawa Blood Disease Centre, Ottawa Hospital, Clinical Epidemiology Program, Ottawa Hospital Research Institute, and Division of Hematology, Department of Medicine, University of Ottawa, Ottawa, Ontario, Canada
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Jeve YB, Davies W. Evidence-based management of recurrent miscarriages. J Hum Reprod Sci 2014; 7:159-69. [PMID: 25395740 PMCID: PMC4229790 DOI: 10.4103/0974-1208.142475] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2014] [Revised: 07/03/2014] [Accepted: 08/05/2014] [Indexed: 11/15/2022] Open
Abstract
Recurrent miscarriages are postimplantation failures in natural conception; they are also termed as habitual abortions or recurrent pregnancy losses. Recurrent pregnancy loss is disheartening to the couple and to the treating clinician. There has been a wide range of research from aetiology to management of recurrent pregnancy loss. It is one of the most debated topic among clinicians and academics. The ideal management is unanswered. This review is aimed to produce an evidence-based guidance on clinical management of recurrent miscarriage. The review is structured to be clinically relevant. We have searched electronic databases (PubMed and Embase) using different key words. We have combined the searches and arranged them with the hierarchy of evidences. We have critically appraised the evidence to produce a concise answer for clinical practice. We have graded the evidence from level I to V on which these recommendations are based.
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Affiliation(s)
- Yadava B Jeve
- Department of Obstetrics and Gynaecology, University Hospitals of Leicester, Leicester LE1 5WW, Northampton, UK
| | - William Davies
- Department of Obstetrics and Gynaecology, Northampton General Hospital, Northampton, UK
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Basaran A, Deren Ö, Buyukasik Y, Basaran M. Free protein s reference ranges in gravidas without hereditary and acquired thrombophilia. Indian J Hematol Blood Transfus 2014; 31:286-91. [PMID: 25825574 DOI: 10.1007/s12288-014-0448-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Accepted: 08/05/2014] [Indexed: 11/30/2022] Open
Abstract
We carried out a retrospective cohort study to construct reference ranges for free protein S (FPS) levels during pregnancy and identify any conditions or factors that may affect FPS levels. Patients that were ordered thrombophilia screening tests during gestational period were identified. Patients demonstrated to have hereditary or acquired thrombophilia were excluded. Reference ranges were constructed using regression analysis. Outcome of the index pregnancy and pregnancy complications was used to identify any confounding factors. A total of 455 pregnant women were included. The quadratic equation for FPS according to gestational age (GA) was [75.497 + (-1.516*GA) + 0.018*GA*GA]. FPS level and GA were negatively correlated (Spearmans rho statistic [rs] = -0.436, p = 0.001). FPS level and fetal growth restriction (FGR) were negatively correlated ([rs] = -0.093, p = 0.049). FPS level and placental abruption were positively correlated ([rs] = 0.098, p = 0.039). Stepwise linear regression model constructed to predict FPS level with gestational age, placental abruption and FGR as the predictor variables. Gestational age was the only variable retaining statistically significant relation with FPS level (χ(2) = 0.216, df = 3, p = 0.001). FPS levels decrease significantly throughout gestation in gravidas without hereditary and/or acquired thrombophilias. In patients without thrombophilia FPS levels are not associated with pregnancy complications. The obtained reference intervals may be useful for the clinicians ordering FPS during pregnancy.
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Affiliation(s)
- Ahmet Basaran
- Obstetrics & Gynecology Department, Konya Training and Research Hospital, Kılıçarslan mah, Nurdağ Sk. Sinanoba sitesi, B-blok No:19 Selçuklu, 42080 Konya, Turkey
| | - Özgür Deren
- Division of Perinatology, Obstetrics & Gynecology Department, Hacettepe University School of Medicine, Ankara, Turkey
| | - Yahya Buyukasik
- Division of Hematology, Internal Medicine Department, Hacettepe University School of Medicine, Ankara, Turkey
| | - Mustafa Basaran
- Obstetrics & Gynecology Department, Konya Training and Research Hospital, Kılıçarslan mah, Nurdağ Sk. Sinanoba sitesi, B-blok No:19 Selçuklu, 42080 Konya, Turkey
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Abu-Heija A. Thrombophilia and Recurrent Pregnancy Loss: Is heparin still the drug of choice? Sultan Qaboos Univ Med J 2014; 14:e26-36. [PMID: 24516750 DOI: 10.12816/0003333] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Revised: 08/24/2013] [Accepted: 10/23/2013] [Indexed: 12/11/2022] Open
Abstract
The association between thrombophilia and recurrent pregnancy loss (RPL) has become an undisputed fact. Thorombophilia creates a hypercoaguable state which leads to arterial and/or venous thrombosis at the site of implantation or in the placental blood vessels. Anticoagulants are an effective treatment against RPL in women with acquired thrombophilia due to antiphospholipid syndrome. The results of the use of anticoagulants for treating RPL in women with inherited thrombophilia (IT) are encouraging, but recently four major multicentre studies have shown that fetal outcomes (determined by live birth rates) may not be as favourable as previously suggested. Although the reported side-effects for anticoagulants are rare and usually reversible, the current recommendation is not to use anticoagulants in women with RPL and IT, or for those with unexplained losses. This review examines the strength of the association between thrombophilia and RPL and whether the use of anticoagulants can improve fetal outcomes.
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Affiliation(s)
- Adel Abu-Heija
- Department of Obstetrics & Gynecology, College of Medicine & Health Sciences, Sultan Qaboos University, Muscat, Oman, E-mail:
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Lino FL, Traina É, Barreto JA, Moron AF, Mattar R. Thrombophilic Mutations and Polymorphisms, Alone or in Combination, and Recurrent Spontaneous Abortion. Clin Appl Thromb Hemost 2014; 21:365-72. [DOI: 10.1177/1076029613520465] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Generally, recurrent spontaneous abortions (RSAs) have no identifiable cause; yet, vascular alterations during pregnancy may be associated with pregnancy loss. Therefore, we evaluated the association between thrombophilic mutations and RSAs. This case–control study was conducted in 112 patients who had RSAs and 98 health control women. Genomic DNA was extracted from whole blood, and polymorphism genotyping was conducted using polymerase chain reaction. The following 6 genetic variants were analyzed: factor V Leiden, prothrombin mutation, methylenetetrahydrofolate reductase C677T and A1298C, plasminogen activator inhibitor type 1 (4G>5G), and factor XIII G103T (V34L). No correlations were found in any of the investigated polymorphisms. Moreover, 35.0% of cases and 25.5% of controls had at least 2 mutations in combination, and 4.8% of cases and 5.1% of controls had 3, but these combinations were not associated with additional risk. In conclusion, we found no association between the polymorphisms studied and the occurrence of RSAs.
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Affiliation(s)
- Fabio L. Lino
- Department of Obstetrics, Universidade Federal de São Paulo, São Paulo, Brazil
- Colsan Associação Beneficente de Coleta de Sangue, São Paulo, Brazil
| | - Évelyn Traina
- Department of Obstetrics, Universidade Federal de São Paulo, São Paulo, Brazil
| | | | | | - Rosiane Mattar
- Department of Obstetrics, Universidade Federal de São Paulo, São Paulo, Brazil
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Bellussi F, Contro E, Legnani C, Galletti S, Cosentino A, Rizzo N, Ghi T. Obstetric implications of fetal inherited thrombophilia in thrombophilic women. Pregnancy Hypertens 2014; 4:54-8. [DOI: 10.1016/j.preghy.2013.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2013] [Revised: 10/23/2013] [Accepted: 11/05/2013] [Indexed: 10/26/2022]
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Abstract
Thrombophilias represent an evolving story that continues to stir controversy for care providers and obstetrical patients. The predominant thrombophilic mutations include the factor V Leiden mutation, prothrombin gene mutation G20210A, methylene tetrahydrafolate reductase C667T, and deficiencies of the natural anticoagulants proteins C and S, and antithrombin. Prospective cohort studies have provided an accurate assessment of the risk of placenta-mediated complications posed by common inherited thrombophilic conditions. Acquired thrombophilic conditions consist of the antiphospholipid antibody syndrome (APAS) and hyperhomocysteinemia. Well-conducted, placebo-controlled, randomized trials have demonstrated no benefit of anticoagulation in women with recurrent pregnancy loss and inherited thrombophilia. The routine use of anticoagulation to prevent other placenta-mediated complications in the setting of inherited thrombophilia should be considered experimental until the results of adequate clinical trials are available. Heparin anticoagulation and antiplatelet therapies are the cornerstone of treatment of APAS in pregnancy.
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Alanjari A, Wright E, Keating S, Ryan G, Kingdom J. Prenatal diagnosis, clinical outcomes, and associated pathology in pregnancies complicated by massive subchorionic thrombohematoma (Breus' mole). Prenat Diagn 2013; 33:973-8. [DOI: 10.1002/pd.4176] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Revised: 05/21/2013] [Accepted: 05/31/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Abdulmohsen Alanjari
- Fetal Medicine Unit; Mount Sinai Hospital, University of Toronto; Ontario Canada
| | - Emily Wright
- Fetal Medicine Unit; Mount Sinai Hospital, University of Toronto; Ontario Canada
| | - Sarah Keating
- Department of Obstetrics and Gynaecology; Mount Sinai Hospital, University of Toronto; Ontario Canada
- Department of Pathology and Laboratory Medicine; Mount Sinai Hospital, University of Toronto; Ontario Canada
| | - Greg Ryan
- Fetal Medicine Unit; Mount Sinai Hospital, University of Toronto; Ontario Canada
| | - John Kingdom
- Fetal Medicine Unit; Mount Sinai Hospital, University of Toronto; Ontario Canada
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Becker R, Keller T, Kiesewetter H, Fangerau H, Bittner U. Individual risk assessment of adverse pregnancy outcome by multivariate regression analysis may serve as basis for drug intervention studies: retrospective analysis of 426 high-risk patients including ethical aspects. Arch Gynecol Obstet 2013; 288:41-8. [PMID: 23389246 PMCID: PMC3682099 DOI: 10.1007/s00404-013-2723-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2012] [Accepted: 01/15/2013] [Indexed: 12/17/2022]
Abstract
OBJECTIVE To identify patients at very high risk for adverse pregnancy outcome (APO) at the 20- to 23-week scan and to assess the effectiveness of Aspirin (ASS) and low molecular weight heparin (LMWH) starting after this examination. PATIENTS AND METHODS By applying an algorithm based on multivariate logistic regression analysis using the parameters maternal age, parity, body mass index (BMI), mean pulsatility index of both uterine arteries (meanPI), presence of uni- or bilateral notch, and depth of notch (mean notch index (meanNI), we retrospectively calculated the individual risk for APO of 21,302 singleton pregnancies. We isolated a subgroup of 426 patients with the highest calculated probability for APO (cpAPO > 27.8 %). 147 had been treated with ASS; 73 with LMWH, 15 patients with a combination of ASS and LMWH, and 191 patients had not received anticoagulants. RESULTS Administration of ASS starting after 20 gestational weeks in comparison to non-treated patients significantly reduced the frequency of intrauterine/neonatal death (IUD/NND), preeclampsia <33 weeks (PE < 33), and preterm delivery <33 weeks (PD < 33), while the frequency of IUGR showed a tendency to be elevated (P = 0.061). The subgroup of high-risk patients treated with LMWH was characterised by a higher a priori risk for APO and showed no significant reduction of any form of APO but an increased frequency of PE. CONCLUSION Individual assessment of risk for APO by applying a simple algorithm based on biometrical/biographical as well as sonographic parameters may serve as basis for drug intervention studies. The administration of ASS in high-risk patients starting after 20 gestational weeks reduced the frequency of most of the severe forms of adverse pregnancy outcome in high-risk patients. A complication-reducing effect of LMWH starting after 20 weeks of gestation in patients could not be proven. From an ethical point of view, it may not be justified any more to preclude high-risk patients from administration of ASS or to perform studies of ASS against placebo.
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Affiliation(s)
- Rolf Becker
- Center for Prenatal Diagnosis and Human Genetics, Free University of Berlin, Kurfuerstendamm 199, 10719 Berlin, Germany.
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Walker MG, Windrim C, Ellul KN, Kingdom JCP. Web-based education for placental complications of pregnancy. JOURNAL OF OBSTETRICS AND GYNAECOLOGY CANADA 2013; 35:334-339. [PMID: 23660041 DOI: 10.1016/s1701-2163(15)30961-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE The objective of this study was to determine whether a web-based education strategy could improve maternal knowledge of placental complications of pregnancy and reduce maternal anxiety in high risk-pregnancies. METHODS Prospective study in the Placenta Clinic at Mount Sinai Hospital, Toronto, Ontario. Maternal demographics and Internet usage were recorded at the patient's baseline appointment. Placental knowledge was determined using structured verbal and illustrative assessments. The six-item State-Trait Anxiety Inventory (STAI) was administered to assess baseline maternal anxiety. Women were asked to visit the Placenta Clinic website for a minimum of 15 minutes before their follow-up appointment, at which time their placental knowledge and STAI assessments were repeated. RESULTS Eighteen women were included in the study. Patient knowledge at the baseline appointment was generally poor (median score 10.5 out of a maximum score of 27, range 1 to 22), with major deficits in basic placental knowledge, placenta previa/increta, and preeclampsia. At the follow-up appointment, placental knowledge was significantly improved (median score 23, range 10 to 27; P < 0.001). Educational status (high school or less vs. college or more) had no effect on either baseline knowledge or knowledge improvement. Maternal anxiety at baseline (median score 12 out of a maximum score of 24, range 6 to 23) was significantly reduced at the follow-up appointment (median score 8.5, range 6 to 20; P = 0.005). CONCLUSION Deficits in maternal knowledge of placental complications of pregnancy in high-risk pregnant women were substantial but easily rectified with a disease-targeted web-based educational resource. This intervention significantly improved patient knowledge and significantly reduced maternal anxiety.
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Affiliation(s)
- Melissa G Walker
- Department of Obstetrics & Gynaecology, Mount Sinai Hospital, University of Toronto ON
| | - Catherine Windrim
- Department of Obstetrics & Gynaecology, Mount Sinai Hospital, University of Toronto ON
| | - Katie N Ellul
- Department of Obstetrics & Gynaecology, Mount Sinai Hospital, University of Toronto ON
| | - John C P Kingdom
- Department of Obstetrics & Gynaecology, Mount Sinai Hospital, University of Toronto ON
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Rath W, Thaler CJ. [Hereditary thrombophilias and placental-mediated pregnancy complications in the II./III. trimester]. Hamostaseologie 2013; 33:21-36. [PMID: 23392307 DOI: 10.5482/hamo-12-11-0020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Accepted: 01/18/2013] [Indexed: 11/05/2022] Open
Abstract
UNLABELLED Placental-mediated pregnancy complications (PmC) like preeclampsia, intrauterine growth restriction and placental abruption are common causes of fetal and maternal morbidity and mortality. The high prevalence of hereditary thrombophilias in case-control studies associated with pathological morphological findings of the placenta in these cases gave evidence for the association between hereditary thrombophilias and PmC. However, data from the literature are inconsistent, since subsequent prospective cohort studies could not demonstrate significant associations between inherited thrombophilia and PmC. Because of the multifactorial aetiology of PmC it may be difficult to prove, that hereditary thrombophilias are independent risk factors for PmC. Current guidelines do not recommend screening for inherited thrombophilias in patients with previous PmC. Evidence from current in vitro studies have shown, that heparin has beneficial non-anticoagulatory effects on trophoblast invasion. Retrospective case-control studies and recently published randomised controlled cohort studies have shown, that prophylactic administration of low-molecular-weight heparin (LWH), started in early pregnancy, may lead to a significant reduction in the incidence of PmC in subsequent pregnancies in patients with and without hereditary thrombophilias and previous PmC. CONCLUSION Large, well-designed multicenter studies are needed to elucidate the role of hereditary thrombophilias in cases of PmC and to confirm the benefit of LWH for subsequent pregnancy outcomes.
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Affiliation(s)
- W Rath
- Gynäkologie und Geburtshilfe, Medizinische Fakultät, Universitätsklinikum, Wendlingweg 2, 52074 Aachen.
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Cordoba I, Pegenaute C, González-López TJ, Chillon C, Sarasquete ME, Martin-Herrero F, Guerrero C, Cabrero M, Garcia Sanchez MH, Pabon P, Lozano FS, Gonzalez M, Alberca I, González-Porras JR. Risk of placenta-mediated pregnancy complications or pregnancy-related VTE in VTE-asymptomatic families of probands with VTE and heterozygosity for factor V Leiden or G20210 prothrombin mutation. Eur J Haematol 2012; 89:250-5. [PMID: 22642978 DOI: 10.1111/j.1600-0609.2012.01809.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/15/2012] [Indexed: 11/30/2022]
Abstract
BACKGROUND Few studies have evaluated the risk of pregnancy-related adverse events in asymptomatic relatives of probands for VTE and factor V Leiden or the G20210A variant. The antepartum management of this population ranges from antepartum anticoagulation therapy to clinical surveillance. OBJECTIVE To evaluate the risk of placenta-mediated pregnancy complications and pregnancy-related VTE in VTE-asymptomatic families of probands with VTE and who are heterozygous carriers of either factor V Leiden or PT-G20210A mutation. METHODS One hundred and fifty-eight relatives, who had 415 pregnancies, were retrospectively evaluated. Odds ratios and 95% confidence intervals were calculated to compare pregnancy outcomes between women with and without thrombophilia. RESULTS In the factor V Leiden group, 22 placenta-mediated pregnancy events of 152 pregnancies (14.4%) were reported, compared with 25 adverse events of 172 pregnancies in the G20210A prothrombin group (14.5%) and 13 adverse events of 91 pregnancies in the non-carrier group (14.2%). Carriers of factor V Leiden or G20210A prothrombin were not associated with a higher risk of pregnancy-adverse outcomes compared with non-carriers: OR 1.02 (95% CI, 0.40-2.25) and 1.25 (95% CI, 0.48-3.24), respectively. Four episodes of pregnancy-associated VTE of 415 pregnancies (0.96%) were recorded. Two episodes of VTE in the G20210A group, one in the factor V Leiden group, and one episode in the non-carrier group were noted. CONCLUSIONS In VTE-asymptomatic relatives of probands with VTE, the presence of factor V Leiden or the G20210A prothrombin mutation in heterozygosis should not lead to a decision to instigate antepartum prophylaxis.
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Affiliation(s)
- Iris Cordoba
- Hematology Department, IBSAL-Hospital Universitario de Salamanca, Salamanca, Spain
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Said JM, Tsui R, Borg AJ, Higgins JR, Moses EK, Walker SP, Monagle PT, Brennecke SP. The PAI-1 4G/5G polymorphism is not associated with an increased risk of adverse pregnancy outcome in asymptomatic nulliparous women. J Thromb Haemost 2012; 10:881-6. [PMID: 22432640 DOI: 10.1111/j.1538-7836.2012.04700.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Plasminogen activator inhibitor type 1 (PAI-1) is an important regulator of fibrinolysis. A common deletion polymorphism that results in a sequence of 4G instead of 5G in the promoter region of the gene is associated with a small increase in the risk of venous thromboembolism. Its potential association with adverse pregnancy events remains controversial. OBJECTIVE We aimed to assess the impact of the 4G PAI-1 polymorphism on pregnancy outcomes in women who had no prior history of adverse pregnancy outcomes or personal or family history of venous thromboembolism. PATIENTS/METHODS This study represents a secondary investigation of a prior prospective cohort study investigating the association between inherited thrombophilias and adverse pregnancy events in Australian women. Healthy nulliparous women were recruited to this study prior to 22 weeks gestation. Genotyping for the 4G/5G PAI-1 gene was performed using Taqman assays in an ABI prism 7700 Sequencer several years after the pregnancy was completed. Pregnancy outcome data were extracted from the medical record. The primary outcome was a composite comprising development of severe pre-eclampsia, fetal growth restriction, major placental abruption, stillbirth or neonatal death. RESULTS Pregnancy outcome data were available in 1733 women who were successfully genotyped for this polymorphism. The primary composite outcome was experienced by 139 women (8% of the cohort). Four hundred and fifty-nine women (26.5%) were homozygous for the 4G deletion polymorphism, while 890 (51.4%) were heterozygous. Neither homozygosity nor heterozygosity for the PAI-1 4G polymorphism was associated with the primary composite outcome (homozygous OR = 1.30, 95% CI = 0.81-2.09, P = 0.28, heterozygous OR = 0.84, 95% CI = 0.53-1.31, P = 0.44) or with the individual pregnancy complications. CONCLUSION The PAI-1 4G polymorphism is not associated with an increase in the risk of serious adverse pregnancy events in asymptomatic nulliparous women.
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Affiliation(s)
- J M Said
- Department of Perinatal Medicine, The Royal Women's Hospital, Parkville, Australia.
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Dudding TE, Attia J. Maternal factor V Leiden and adverse pregnancy outcome: deciding whether or not to test. J Matern Fetal Neonatal Med 2012; 25:889-94. [DOI: 10.3109/14767058.2011.608815] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Derbent AU, Yanik FF, Inegöl Gümüş I, Simavli S, Turhan NÖ. Impact of inherited thrombophilias on first and second trimester maternal serum markers for aneuploidy. J Matern Fetal Neonatal Med 2012; 25:2177-81. [PMID: 22506595 DOI: 10.3109/14767058.2012.684105] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE To evaluate first and second-trimester maternal serum markers in pregnancies complicated with inherited thrombophilias. METHODS A case-control study was conducted in 50 pregnancies complicated with hereditary thrombophilia and 100 control pregnancies. RESULTS Each woman with inherited thrombophilia received low molecular weight heparin (LMWH) throughout her pregnancy. Gravidity, parity, number of first-trimester and second-trimester abortions, and rate of adverse pregnancy outcomes (APO) were significantly higher in the thrombophilia group compared to the control group (P < 0.001 for all). Among the thrombophilia group median values of pregnancy associated placental protein-A (PAPP-A) (0.6 vs. 0.9; P < 0.001) and free β-human chorionic gonadotropin (β-hCG) (0.9 vs. 1.1; P = 0.001) in the first trimester; median values of α-fetoprotein (AFP) (0.7 vs. 1.1; P = 0.027), unconjugated estriol 3 (uE3) (0.9 vs. 1.1; P < 0.001), and hCG (0.7 vs. 1.2; P < 0.001) in the second trimester were significantly lower with respect to control pregnancies. Multivariate analysis revealed that low uE3 and hCG levels were independently associated with APO. CONCLUSION Pregnant women with hereditary thrombophilias, all of whom were treated with LMWH, had decreased levels of all first and second trimester serum markers. In addition, levels of hCG and uE3 in the second trimester could independently predict placenta-related disorders and adverse outcomes in these patients.
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Affiliation(s)
- Aysel Uysal Derbent
- Department of Obstetrics and Gynecology, Fatih University School of Medicine, Ankara, Turkey.
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Relation between maternal thrombophilia and stillbirth according to causes/associated conditions of death. Early Hum Dev 2012; 88:251-4. [PMID: 21945103 DOI: 10.1016/j.earlhumdev.2011.08.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2010] [Revised: 08/19/2011] [Accepted: 08/23/2011] [Indexed: 11/23/2022]
Abstract
OBJECTIVE To investigate maternal thrombophilia in cases of Stillbirth (SB), also an uncertain topic because most case series were not characterised for cause/associated conditions of death. STUDY DESIGN In a consecutive, prospective, multicentre design, maternal DNA was obtained in 171 cases of antenatal SB and 326 controls (uneventful pregnancy at term, 1:2 ratio). Diagnostic work-up of SB included obstetric history, neonatologist inspection, placenta histology, autopsy, microbiology/chromosome evaluations. Results audited in each centre were classified by two of us by using CoDAC. Cases were subdivided into explained SB where a cause of death was identified and although no defined cause was detected in the remnants, 64 cases found conditions associated with placenta-vascular disorders (including preeclampsia, growth restriction and placenta abruption - PVD). In the remnant 79 cases, no cause of death or associated condition was found. Antithrombin activity, Factor V Leiden, G20210A Prothrombin mutation (FII mutation) and acquired thrombophilia were analysed. RESULTS Overall, the presence of a thrombophilic defect was significantly more prevalent in mothers with SBs compared to controls. In particular, SB mothers showed an increased risk of carrying Factor II mutation (OR=3.2, 95% CI: 1.3-8.3, p=0.01), namely in unexplained cases. Such mutation was significantly associated also with previous SB (OR=8.9, 95%CI 1.2-70.5). At multiple logistic regression, Factor II mutation was the only significantly associated variable with SB (adj OR=3.8, 95% CI: 1.3-13.5). CONCLUSION These data suggest that Factor II mutation is the only condition specifically associated with unexplained SB and could represents a risk of recurrence. PVD-associated condition is unrelated to thrombophilia.
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Hoteit R, Taher A, Nassar R, Otrock Z, Halawi R, Mahfouz RA. Frequency of Triple Mutations Involving Factor V, Prothrombin, and Methylenetetrahydrofolate Reductase Genes Among Patients Referred for Molecular Thrombophilia Workup in a Tertiary Care Center in Lebanon. Genet Test Mol Biomarkers 2012; 16:223-5. [DOI: 10.1089/gtmb.2011.0114] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Rouba Hoteit
- Department of Pathology and Laboratory Medicine, American University of Beirut Medical Center (AUBMC), Beirut, Lebanon
| | - Ali Taher
- Department of Internal Medicine, American University of Beirut Medical Center (AUBMC), Beirut, Lebanon
| | - Rabih Nassar
- Department of Pathology and Laboratory Medicine, American University of Beirut Medical Center (AUBMC), Beirut, Lebanon
| | - Zaher Otrock
- Department of Pathology and Laboratory Medicine, American University of Beirut Medical Center (AUBMC), Beirut, Lebanon
| | - Racha Halawi
- Department of Internal Medicine, American University of Beirut Medical Center (AUBMC), Beirut, Lebanon
| | - Rami A.R. Mahfouz
- Department of Pathology and Laboratory Medicine, American University of Beirut Medical Center (AUBMC), Beirut, Lebanon
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Haumonté JB, Camoin-Jau L, Banet J, Mazouni C, Heckenroth H, Dignat-George F, Bretelle F. Factor VIII:C levels in pregnancies complicated by pre-eclampsia and intrauterine growth restriction. Int J Gynaecol Obstet 2011; 116:258-9. [DOI: 10.1016/j.ijgo.2011.10.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2011] [Revised: 10/24/2011] [Accepted: 11/23/2011] [Indexed: 10/14/2022]
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The association of inherited thrombophilia and intrauterine fetal death. Blood Coagul Fibrinolysis 2011; 22:651-6. [DOI: 10.1097/mbc.0b013e32834a614c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Cooley SM, Reidy FR, Mooney EE, McAuliffe FM. Antenatal suspicion of ischemic placental disease and coexistence of maternal and fetal placental disease: analysis of over 500 cases. Am J Obstet Gynecol 2011; 205:576.e1-6. [PMID: 21903194 DOI: 10.1016/j.ajog.2011.06.061] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2011] [Revised: 05/10/2011] [Accepted: 06/15/2011] [Indexed: 10/18/2022]
Abstract
OBJECTIVE To investigate the antenatal suspicion of placental disease and the coexistence of maternal and fetal placental ischemic disease. STUDY DESIGN A prospective cohort study on normally formed singleton infants from 2000 to 2008 inclusive with placental ischemic disease. RESULTS Uteroplacental ischemia or fetoplacental thrombotic vasculopathy was identified in 511 of 74,857 births (7/1000 births). Four hundred fifty-nine cases met the inclusion criteria. Maternal and fetal placental vascular disease coexisted in 9.2% (n = 42) of cases. Placental ischemic disease was suspected antenatally in 70% (324/459). Maternal placental disease occurred in 40% (184/459) and 30% (140/459) had fetal pathology. The perinatal mortality rate was 12.7/1000. Antenatal suspicion of placental disease led to increased obstetric intervention and delivery of small-for-gestational age infants. CONCLUSION Maternal and fetoplacental vascular disease coexisted in 9.2%. Placental disease was suspected antenatally in 70% of cases and was associated with increased rates of obstetric intervention.
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Abstract
Factor V Leiden is a genetic disorder characterized by a poor anticoagulant response to activated Protein C and an increased risk for venous thromboembolism. Deep venous thrombosis and pulmonary embolism are the most common manifestations, but thrombosis in unusual locations also occurs. The current evidence suggests that the mutation has at most a modest effect on recurrence risk after initial treatment of a first venous thromboembolism. Factor V Leiden is also associated with a 2- to 3-fold increased relative risk for pregnancy loss and possibly other obstetric complications, although the probability of a successful pregnancy outcome is high. The clinical expression of Factor V Leiden is influenced by the number of Factor V Leiden alleles, coexisting genetic and acquired thrombophilic disorders, and circumstantial risk factors. Diagnosis requires the activated Protein C resistance assay (a coagulation screening test) or DNA analysis of the F5 gene, which encodes the Factor V protein. The first acute thrombosis is treated according to standard guidelines. Decisions regarding the optimal duration of anticoagulation are based on an individualized assessment of the risks for venous thromboembolism recurrence and anticoagulant-related bleeding. In the absence of a history of thrombosis, long-term anticoagulation is not routinely recommended for asymptomatic Factor V Leiden heterozygotes, although prophylactic anticoagulation may be considered in high-risk clinical settings. In the absence of evidence that early diagnosis reduces morbidity or mortality, decisions regarding testing at-risk family members should be made on an individual basis.
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SAID JOANNEM, HIGGINS JOHNR, MOSES ERICK, WALKER SUSANP, MONAGLE PAULT, BRENNECKE SHAUNP. Inherited thrombophilias and adverse pregnancy outcomes: a case-control study in an Australian population. Acta Obstet Gynecol Scand 2011; 91:250-5. [DOI: 10.1111/j.1600-0412.2011.01293.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Becker R. Identification of high-risk patients for adverse pregnancy outcome based on multivariate logistic regression analysis at 20-23 gestational weeks. J Perinat Med 2011; 39:667-72. [PMID: 21919546 DOI: 10.1515/jpm.2011.079] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AIMS To establish and test a multivariate approach for identification of patients with high risk for adverse pregnancy outcome (APO) by a combination of sonographic (20+0-23+6 weeks) and biometrical data in a test group and to prove its effectiveness in a validation group. METHODS In order to develop a multivariate approach for identifying patients at high risk for APO, data from 15,855 non-treated singleton pregnancies (test group A), with well-known outcomes, were analysed retrospectively. Registered parameters were parity, body mass index (BMI), mean of pulsatility index of both uterine arteries (meanPI), presence of notch, and depth of notch described as the mean of the notch index of both uterine arteries (meanNI). In a second step, the model was validated in 3678 subsequent non-treated singleton pregnancies (validation group B). RESULTS In test group A, the calculated probabilities of APO were found between 1.3% and 82.8%, with the 95th centile at 11.2% and the 99th centile at 28.3%. In validation group B, in patients with a low calculated risk for APO <10%, complications were found in 4.4%. In patients with an intermediate risk of APO between 10% and 28%, complications were found in 10.7%. In patients from group B who were identified to be at high risk with a calculated probability of APO >28%, complications were found in 39.1%. CONCLUSION A multivariate approach toward risk-assessment of APO seems to be a promising method for identifying patients who are at high risk for APO. Besides the individual consequence of intensive surveillance, the identification of groups of patients at high risk for APO might serve as a basis for interventional studies.
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Affiliation(s)
- Rolf Becker
- Center for Prenatal Diagnosis, Free University of Berlin, Berlin, Germany.
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Can Factor V Leiden and prothrombin G20210A testing in women with recurrent pregnancy loss result in improved pregnancy outcomes?: Results from a targeted evidence-based review. Genet Med 2011; 14:39-50. [PMID: 22237430 DOI: 10.1038/gim.0b013e31822e575b] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Women with recurrent pregnancy loss are offered Factor V Leiden (F5) and/or prothrombin G20210A (F2) testing to identify candidates for anticoagulation to improve outcomes. A systematic literature review was performed to estimate test performance, effect sizes, and treatment effectiveness. Electronic searches were performed through April 2011, with review of references from included articles. English-language studies addressed analytic validity, clinical validity, and/or clinical utility and satisfied predefined inclusion criteria. Adequate evidence showed high analytic sensitivity and specificity for F5 and F2 testing. Evidence for clinical validity was adequate. The summary odds ratio for association of recurrent pregnancy loss with F5 in case-controlled studies was 2.02 (95% confidence interval, 1.60-2.55), with moderate heterogeneity and suggestion of publication bias. Longitudinal studies in women with recurrent pregnancy loss or unselected cohorts showed F5 carriers were more likely to have a subsequent loss than noncarriers (odds ratios: 1.93 and 2.03, respectively). Results for F2 testing were similar. For clinical utility, evidence was adequate that anticoagulation treatments were ineffective (except in antiphospholipid antibody syndrome) and had treatment-associated harms. The certainty of evidence is moderate (high, moderate, and low) that anticoagulation of women with recurrent pregnancy loss and F5/F2 variants would currently lead to net harms.
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