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Zhu Y, Liu Z, Miao C, Wang X, Liu W, Chen S, Gao H, Li W, Wu Z, Cao H, Li H. Trajectories of maternal D-dimer are associated with the risk of developing adverse maternal and perinatal outcomes: a prospective birth cohort study. Clin Chim Acta 2023; 543:117324. [PMID: 37003516 DOI: 10.1016/j.cca.2023.117324] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 03/22/2023] [Accepted: 03/27/2023] [Indexed: 04/03/2023]
Abstract
OBJECTIVE To assess the relationships of maternal D-dimer trajectories with the risk of developing adverse maternal and perinatal outcomes (AMPOs). METHODS A prospective birth cohort study was conducted in China, and 7,095 women who had singleton birth were included. The latent class growth model was used to determine the maternal D-dimer trajectory. RESULTS Three maternal D-dimer trajectories were identified: (1) slight increase (43.6%), (2) rapid rise (51.3%), (3) sustained high (5.1%). Compared to pregnant women with a slight increase in D-dimer trajectory, the risk of gestational diabetes mellitus, placenta previa, macrosomia, large for gestational age (LGA), and increased postpartum bleeding was significantly increased in those with a rapid rise trajectory (adjusted OR=1.22, 2.00, 1.80, and 1.56, adjusted β=15.92∼25.1ml, respectively, P<0.05), and women with a sustained high trajectory also demonstrated a relatively elevated risk of macrosomia and LGA (adjusted OR=2.11 and 1.82, respectively, P<0.05). While the odds of pregnancy-induced hypertension, low birth weight, and small for gestational age in pregnant women with the rapid rise D-dimer trajectory and fetal distress in those with sustained high trajectory exhibited a reduction (adjusted OR=0.62, 0.38, 0.54, and 0.64, respectively, P<0.05). CONCLUSION This study highlights the influence of inappropriate maternal D-dimer trajectories on the risk of AMPOs.
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Affiliation(s)
- Yibing Zhu
- Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350001, China; Fujian Key Laboratory of Women and Children's Critical Disease Research, Fuzhou 350001, China
| | - Zhaozhen Liu
- Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350001, China; Fujian Obstetrics and Gynecology Hospital, Fuzhou 350012, China
| | - Chong Miao
- Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350001, China
| | - Xiaomei Wang
- Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350001, China; Fujian Obstetrics and Gynecology Hospital, Fuzhou 350012, China
| | - Wenjuan Liu
- Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350001, China; Fujian Children's Hospital, Fuzhou 350001, China
| | - Shali Chen
- Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350001, China; Fujian Obstetrics and Gynecology Hospital, Fuzhou 350012, China
| | - Haiyan Gao
- Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350001, China; Fujian Obstetrics and Gynecology Hospital, Fuzhou 350012, China
| | - Wei Li
- Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350001, China; Fujian Obstetrics and Gynecology Hospital, Fuzhou 350012, China
| | - Zhengqin Wu
- Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350001, China; Fujian Obstetrics and Gynecology Hospital, Fuzhou 350012, China
| | - Hua Cao
- Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350001, China; Fujian Key Laboratory of Women and Children's Critical Disease Research, Fuzhou 350001, China.
| | - Haibo Li
- Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350001, China; Fujian Key Laboratory of Women and Children's Critical Disease Research, Fuzhou 350001, China
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Hovine A, Chauleur C, Gauld C, Rancon F, Gris JC, Tardy B, Giraud A, Raia-Barjat T. Serum D-dimer is not predictive of placenta-mediated complications in pregnancy at high risk: The multicentric prospective cohort AngioPred study. Front Cell Dev Biol 2023; 11:1115622. [PMID: 36711041 PMCID: PMC9877627 DOI: 10.3389/fcell.2023.1115622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 01/05/2023] [Indexed: 01/13/2023] Open
Abstract
Background: The theory that D-dimer level might has a predictive or diagnostic role in preeclampsia needs to be explored. Aim of the study was to evaluate the association between serum D-dimer level and the occurrence of placenta-mediated complications (PMC) in a pregnant population at high risk. Methods: A prospective multicenter cohort study including 200 pregnant women was conducted. Results: Serum D-dimer increases throughout pregnancy, with the highest levels at the end of gestation. Serum D-dimer level was similar for women with PMC and with no complication. Serum D-dimer level was not different in women with preeclampsia versus uncomplicated women. Serum D-dimer level was not different in women with early or late preeclampsia versus uncomplicated women. Conclusion: This result suggests that serum D-dimer level was not predictive of the PMC occurrence. This corroborates the fact that the origin of PMC based more on immunity than in hemostasis.
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Affiliation(s)
- Agathe Hovine
- Department of Gynecology and Obstetrics, Centre Hospitalier Universitaire de Saint-Étienne, Saint-Étienne, France
| | - Céline Chauleur
- Department of Gynecology and Obstetrics, Centre Hospitalier Universitaire de Saint-Étienne, Saint-Étienne, France
- INSERM U1059 SAINBIOSE, Université Jean Monnet, Saint-Étienne, France
| | - Christophe Gauld
- Department of Psychiatry, Centre Hospitalier Universitaire de Saint-Étienne, Saint-Étienne, France
| | - Florence Rancon
- INSERM U1059 SAINBIOSE, Université Jean Monnet, Saint-Étienne, France
- INSERM, Centre d’Investigation Clinique 1408, Saint-Étienne, France
| | - Jean-Christophe Gris
- Laboratory of Hematology, Centre Hospitalier Universitaire de Nîmes, et université de Montpellier, Saint-Étienne, France
- I.M. Sechenov First Moscow State Medical University, Moscow, Russia
- Institut Desbrest d’Epidémiologie et de Santé Publique UMR INSERM - Université de Montpellier, Montpellier, France
| | - Brigitte Tardy
- Laboratory of Hematology, Centre Hospitalier Universitaire de Saint-Étienne, Saint-Étienne, France
| | - Antoine Giraud
- INSERM U1059 SAINBIOSE, Université Jean Monnet, Saint-Étienne, France
- Neonatal Intensive Care Unit, Centre Hospitalier Universitaire de Saint-Étienne, Saint-Étienne, France
| | - Tiphaine Raia-Barjat
- Department of Gynecology and Obstetrics, Centre Hospitalier Universitaire de Saint-Étienne, Saint-Étienne, France
- INSERM U1059 SAINBIOSE, Université Jean Monnet, Saint-Étienne, France
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Godtfredsen AC, Sidelmann JJ, Dolleris BB, Jørgensen JS, Johansen EKJ, Pedersen MFB, Palarasah Y, Gram JB. Fibrinolytic Changes in Women with Preeclampsia. Clin Appl Thromb Hemost 2022; 28:10760296221126172. [PMID: 36217728 PMCID: PMC9558852 DOI: 10.1177/10760296221126172] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Objectives Preeclampsia (PE) is a serious complication of pregnancy. The fibrinolytic
system play crucial roles regarding placentation and evolution of PE. Aim To study comprehensively components of the fibrinolytic system and fibrin
lysability in women with PE. Design and Methods 117 women with PE and matched controls were included. Tissue type plasminogen
activator (t-PA), plasminogen, PAI-1, plasmin inhibitor (PI), D-dimer, the
fibrinolytic potential of dextran sulphate euglobulin fraction (DEF), PAI-2,
polymere PAI-2, fibrin clot lysability, thrombin activatable fibrinolysis
inhibitor (TAFI) and fibrinogen were assessed. Results Women with PE had significantly increased concentrations of t-PA and PAI-1,
whereas the plasma concentration of PAI-2 was significantly lower compared
to controls, p < 0.0001. Polymere PAI-2 was detected in both groups. DEF,
TAFI and fibrinogen were not different between the groups. D-dimer was
significantly increased and plasminogen/PI together with fibrin clot
lysability time decreased in the PE-group, p = 0.0004 p = 0.04,
p = 0.03, p < 0.0001 respectively. Conclusion This study demonstrates that PE is associated with an affected t-PA/PAI-1
system, decreased PAI-2 and increased fibrin lysability. Furthermore, PAI-2
has the potential to polymerize during pregnancy.
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Affiliation(s)
- Anne Cathrine Godtfredsen
- Department of Gynecology and Obstetrics, University Hospital of
Southern Denmark, Esbjerg, Denmark,Unit for Thrombosis Research, Department of Regional Health
Research, University of Southern Denmark, Esbjerg, Denmark,Anne Cathrine Godtfredsen, Unit for
Thrombosis Research, Department of Regional Health Research, University of
Southern Denmark, Finsensgade 35, DK-6700 Esbjerg, Denmark.
| | - Johannes Jakobsen Sidelmann
- Unit for Thrombosis Research, Department of Regional Health
Research, University of Southern Denmark, Esbjerg, Denmark,Department of Clinical Biochemistry, University Hospital of Southern
Denmark, Esbjerg, Denmark
| | - Britta Blume Dolleris
- Department of Gynecology and Obstetrics, University Hospital of
Southern Denmark, Odense, Denmark
| | - Jan Stener Jørgensen
- Department of Gynecology and Obstetrics, University Hospital of
Southern Denmark, Odense, Denmark
| | | | | | - Yaseelan Palarasah
- Unit for Thrombosis Research, Department of Regional Health
Research, University of Southern Denmark, Esbjerg, Denmark,Department of Cancer and Inflammation Research, University of
Southern Denmark, Odense, Denmark
| | - Jørgen Brodersen Gram
- Unit for Thrombosis Research, Department of Regional Health
Research, University of Southern Denmark, Esbjerg, Denmark,Department of Clinical Biochemistry, University Hospital of Southern
Denmark, Esbjerg, Denmark
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Predicting Hypertensive Disease in the First Trimester of Pregnancy: Risk Models and Analysis of Serum D-dimer Levels Combined with Plasma Pregnancy-Associated Protein A, Free β-Subunit of Human Chorionic Gonadotropin, and Fetal Nuchal Translucency. BIOMED RESEARCH INTERNATIONAL 2022; 2022:8264958. [PMID: 35402610 PMCID: PMC8986391 DOI: 10.1155/2022/8264958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 03/05/2022] [Indexed: 11/18/2022]
Abstract
We aimed to investigate the predictive ability of serum levels of D-dimer (DD) in the first trimester for the occurrence of hypertensive disorders of pregnancy (HDP). In this retrospective, case-cohort study, we measured the levels of DD, plasma pregnancy-associated protein A (PAPP-A), and free β-subunit of human chorionic gonadotropin (free β-hCG) and analyzed fetal nuchal translucency (NT) in 150 healthy gravidas, 126 cases of gestational hypertension (GH), 53 cases of preeclampsia (PE), and 41 cases with severe preeclampsia (SPE). Likelihood ratio models and risk models were built using single markers (DD, PAPP-A, free β-hCG, and NT) and combinations of those markers. Analyses showed that the levels of DD multiple of the median (MoM) in the GH, PE, and SPE groups were all significantly higher than those in the control group, with significant differences between groups (χ2 = 70.325, P < 0.001). The area under curve (AUCs) for DD in the GH, PE, and SPE groups was 0.699, 0.784, and 0.893, respectively; the positive likelihood ratio (+LR) was 1.534, 1.804, and 2.941, respectively; and the negative likelihood ratio (-LR) was 0.022, 0.081, and 0, respectively. When the cut-off values of DD for the GH, PE, and SPE groups were 0.725, 0.815, and 0.945 MoM, respectively, the corresponding sensitivities were 0.992, 0.962, and 1.000, respectively. As gestational hypertension progressed, the levels of DD tended to increase gradually. The maternal serum level of DD in the first trimester had correlative and diagnostic value for HDP. The sensitivity and specificity of maternal serum levels of DD level in the first trimester for different types of HDP were significantly different; the best sensitivity and specificity were detected in the SPE group. First trimester DD level, combined with other biochemical markers, may improve our ability to diagnose HDP.
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Miyamoto K, Komatsu H, Okawa M, Iida Y, Osaku D, Azuma Y, Tsuneto T, Harada T, Taniguchi F, Harada T. D-dimer level significance for deep vein thrombosis screening in the third trimester: a retrospective study. BMC Pregnancy Childbirth 2022; 22:21. [PMID: 34996371 PMCID: PMC8742329 DOI: 10.1186/s12884-021-04353-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 12/20/2021] [Indexed: 12/01/2022] Open
Abstract
Background Venous thromboembolism often develops after surgery and childbirth, resulting in death in some cases. Although early deep vein thrombosis (DVT) detection can predict pulmonary thromboembolism, there is no early screening method for DVT in pregnant women. Lack of consensus regarding significance or setting and cut-off value interpretation of D-dimer levels further impedes venous thromboembolism screening in pregnant women. This study aimed to examine the utility of third-trimester serum D-dimer levels as a screening test for DVT during pregnancy and to determine the frequency of asymptomatic DVT using lower-limb compression ultrasonography. Methods This single-center retrospective study included 497 pregnant women who underwent elective cesarean section at term in our hospital between January 2013 and December 2019. Serum D-dimer levels were preoperatively measured at 32–37 weeks’ gestation. The presence or absence of DVT in patients with serum D-dimer levels ≥ 3.0 µg/ml, the cut-off value, was examined using compression ultrasonography. In all patients, the presence or absence of clinical venous thrombosis (symptoms such as lower-limb pain, swelling, and heat sensation) was examined within 4 postoperative weeks. The Royal College of Obstetricians and Gynecologists Guideline 2015 was referred to determine risk factors for the onset of venous thrombosis during pregnancy. Among those, we examined the risk factors for DVT that result in high D-dimer levels during pregnancy. Results The median age and body mass index were 35 (20–47) years and 21.2 (16.4–41.1) kg/m2, respectively. Further, the median gestational age and D-dimer levels were 37 weeks and 2.1 (0.2–16.0) µg/ml, respectively. Compression ultrasonography was performed on 135 (26.5%) patients with a D-dimer level ≥ 3.0 µg/ml, with none of the patients showing DVT. All patients were followed up for 4 postoperative weeks, with none presenting with venous thromboembolism. Multivariate analysis showed that hypertensive disorders of pregnancy are an independent risk factor for venous thromboembolism that causes high D-dimer levels (odds ratio: 2.48, 95% confidence interval: 1.05–6.50, P = 0.04). Conclusion There may be low utility in screening for DVT using D-dimer levels in the third trimester. Further, prepartum asymptomatic DVT has a low frequency, indicating the low utility of compression ultrasonography. Trial registration Institutional Review Board of Tottori University Hospital (IRB no. 20A149).
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Affiliation(s)
- Keisuke Miyamoto
- Department of Obstetrics and Gynecology, Tottori University School of Medicine, 36-1 Nishicho, 683-8504, Tottori Prefecture, Yonago, Japan
| | - Hiroaki Komatsu
- Department of Obstetrics and Gynecology, Tottori University School of Medicine, 36-1 Nishicho, 683-8504, Tottori Prefecture, Yonago, Japan.
| | - Masayo Okawa
- Department of Obstetrics and Gynecology, Tottori University School of Medicine, 36-1 Nishicho, 683-8504, Tottori Prefecture, Yonago, Japan
| | - Yuki Iida
- Department of Obstetrics and Gynecology, Tottori University School of Medicine, 36-1 Nishicho, 683-8504, Tottori Prefecture, Yonago, Japan
| | - Daiken Osaku
- Department of Obstetrics and Gynecology, Tottori University School of Medicine, 36-1 Nishicho, 683-8504, Tottori Prefecture, Yonago, Japan
| | - Yukihiro Azuma
- Department of Obstetrics and Gynecology, Tottori University School of Medicine, 36-1 Nishicho, 683-8504, Tottori Prefecture, Yonago, Japan
| | - Takako Tsuneto
- Department of Obstetrics and Gynecology, Tottori University School of Medicine, 36-1 Nishicho, 683-8504, Tottori Prefecture, Yonago, Japan
| | - Takashi Harada
- Department of Obstetrics and Gynecology, Tottori University School of Medicine, 36-1 Nishicho, 683-8504, Tottori Prefecture, Yonago, Japan
| | - Fuminori Taniguchi
- Department of Obstetrics and Gynecology, Tottori University School of Medicine, 36-1 Nishicho, 683-8504, Tottori Prefecture, Yonago, Japan
| | - Tasuku Harada
- Department of Obstetrics and Gynecology, Tottori University School of Medicine, 36-1 Nishicho, 683-8504, Tottori Prefecture, Yonago, Japan
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Tasić N, Cavalcante L, Deffune E, Góes MS, Paixão TR, Gonçalves LM. Probeless and label-free impedimetric biosensing of D-dimer using gold nanoparticles conjugated with dihexadecylphosphate on screen-printed carbon electrodes. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.139244] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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7
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Shao H, Gao S, Dai D, Zhao X, Hua Y, Yu H. The association of antenatal D-dimer and fibrinogen with postpartum hemorrhage and intrauterine growth restriction in preeclampsia. BMC Pregnancy Childbirth 2021; 21:605. [PMID: 34482843 PMCID: PMC8420001 DOI: 10.1186/s12884-021-04082-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 08/29/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND D-dimer and fibrinogen were verified to be altered in preeclampsia. This study was to evaluate the associations of D-dimer and fibrinogen plasma levels with postpartum hemorrhage or intrauterine growth restriction in preeclamptic women. METHODS This was a retrospective study that recruited 278 preeclamptic women with singleton pregnancy from January 2016 to December 2019. Patients were allocated into five groups: mild preeclampsia (mPE) (n=68), mild preeclampsia with postpartum hemorrhage (mPE+PPH) (n=13), severe preeclampsia (sPE) (n=112), severe preeclampsia with postpartum hemorrhage (sPE+PPH) (n=17) and severe preeclampsia with intrauterine growth restriction (sPE+IUGR) (n=68). The antenatal D-dimer and fibrinogen plasma levels were analyzed among the groups. Logistic regression was used to determine the correlation between serum indexes and PPH or IUGR in preeclampsia. RESULTS The antenatal D-dimer plasma levels were significantly higher in the sPE+PPH group than that in the sPE group (2.02 μg/ml versus 1.37 μg/ml, P = 0.001), but there was no difference in fibrinogen. Elevated D-dimer was associated with PPH among severe preeclamptic women (adjusted odds ratio (aOR) [95% CI]: 3.093 [1.527-6.264], P = 0.002). No differences in D-dimer and fibrinogen were found between the mPE and mPE+PPH groups or between the sPE and sPE+IUGR groups. CONCLUSIONS Elevated antenatal plasma D-dimer level may be associated with postpartum hemorrhage in severe preeclampsia, but not with intrauterine growth restriction. Future prospective clinical trials are needed to investigate the predictive value of D-dimer in postpartum hemorrhage in severe preeclampsia.
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Affiliation(s)
- Hailing Shao
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Shichu Gao
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Dongru Dai
- Department of Obstetrics and Gynecology, Wenzhou People Hospital, Wenzhou, China
| | - Xiaomin Zhao
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325027, China
| | - Ying Hua
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325027, China.
| | - Huijun Yu
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325027, China.
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Rodríguez-Peña Y, Ibáñez-Pinilla M. Elevated levels of D-dimer tested by immunoturbidimetry are associated with the extent of severity of pre-eclampsia. Int J Gynaecol Obstet 2020; 150:241-247. [PMID: 32282930 DOI: 10.1002/ijgo.13163] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 02/11/2020] [Accepted: 04/07/2020] [Indexed: 12/30/2022]
Abstract
OBJECTIVE To establish the association between increased levels of D-dimer and severity of pre-eclampsia. METHODS A nested, prospective cohort, analytical case-control study was conducted among women with pre-eclampsia between March 2017 and March 2018. Inclusion criteria were age over 18 years, gestational age of more than 20 weeks, a single pregnancy with a living fetus, and a diagnosis of pre-eclampsia. D-dimer was measured by immunoturbidimetry at the time of diagnosis of pre-eclampsia, applying cut-off points adjusted for gestational age. Statistical analysis involved unconditional logistic regression for the association of elevated D-dimer with severe pre-eclampsia adjusted by confounding variables. RESULTS There were 132 patients with pre-eclampsia, of which 44 were classed as controls and 88 were classed as having severe pre-eclampsia (case group). Cohort characteristics included: age between 18 and 45 years (mean 28.0 ± 6.3 years); presence of gestational hypertension (10.6%), chronic arterial hypertension (9.0%); and gestational diabetes (5.3%). In the case group, levels of D-dimer were significantly higher than in controls (19.3% vs 2.3%, odds ratio [OR] 10.30, 95% confidence interval [CI] 1.32-80.14, P=0.004) as well as significant in the unconditional logistic regression model adjusted for maternal age, parity, gestational age, and comorbidities (OR 10.02, 95% CI 1.28-78.68, P=0.028). CONCLUSION Elevated levels of D-dimer and severe pre-eclampsia are strongly associated, reinforcing evidence that one of the physiopathologic bases of the condition is the activation of fibrinolysis and the coagulation system.
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Affiliation(s)
- Yolima Rodríguez-Peña
- Department of Sexual and Reproductive Health, Hospital Universitario Mayor Méderi, Universidad del Rosario, Bogotá, Colombia
| | - Milcíades Ibáñez-Pinilla
- Méderi Research Center, Universitario Mayor Méderi Hospital, Universidad del Rosario, Bogotá, Colombia
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Zeng J, Li Y, Dong Y, Chen Y, Liu Y, Wang S, Zhu H, Liu J, Lu Y, Zhai Y, Cao Z. Predictive values of D-dimer for adverse pregnancy outcomes: a retrospective study. Clin Chem Lab Med 2020; 59:e99-e101. [PMID: 32374281 DOI: 10.1515/cclm-2020-0392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 04/02/2020] [Indexed: 11/15/2022]
Affiliation(s)
- Jiazi Zeng
- Department of Laboratory Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, P.R. China
| | - Youran Li
- Department of Laboratory Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, P.R. China
| | - Ying Dong
- Department of Laboratory Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, P.R. China
| | - Yifei Chen
- Department of Laboratory Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, P.R. China
| | - Ying Liu
- Department of Laboratory Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, P.R. China
| | - Shu Wang
- Department of Laboratory Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, P.R. China
| | - Hongyuan Zhu
- Department of Laboratory Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, P.R. China
| | - Jingrui Liu
- Department of Laboratory Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, P.R. China
| | - Yifan Lu
- Department of Laboratory Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, P.R. China
| | - Yanhong Zhai
- Department of Laboratory Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, P.R. China
| | - Zheng Cao
- Department of Laboratory Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, 251 Yaojiayuan Road, 100026 Beijing, P.R. China, Phone: +86-10-52276406
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Implementation of a Clinical Decision Laboratory Ordering Algorithm for Preeclampsia: A Quality Improvement Initiative. JOURNAL OF OBSTETRICS AND GYNAECOLOGY CANADA 2020; 42:1223-1229.e3. [PMID: 32654980 DOI: 10.1016/j.jogc.2020.03.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 03/13/2020] [Accepted: 03/14/2020] [Indexed: 11/20/2022]
Abstract
OBJECTIVE Pregnant women with suspected or diagnosed preeclampsia receive laboratory investigations. Our institutional protocols were outdated and not evidence based. However, guidelines lack clear direction to support cost-effective use. We aimed to reduce unnecessary laboratory tests, while supporting physicians with investigation selection. METHODS A quality improvement (QI) approach was used to analyze the ordering process in the obstetrics wards of a tertiary care centre. Health care providers were surveyed on their laboratory ordering practices, and their responses corroborated with chart reviews. An algorithm for ordering preeclampsia investigations was developed by a multidisciplinary team, implemented, and posted on the wards. Pocket aides were also distributed, and the algorithm tool was supported by educational seminars. Laboratory usage volume and costs were analyzed pre- and post-intervention. Post-intervention impact surveys, informal interviews, and chart reviews were performed in plan-do-study-act (PDSA) cycles. RESULTS Most health care providers ordered broad panels of investigations and re-evaluated patients at inconsistent intervals. Almost none were aware of the laboratory costs associated with this testing. Most respondents acknowledged that some of the investigations they ordered did not affect patient care. Baseline data (Sept 2016-Aug 2017) showed 2923 tests ordered monthly (CAD$18 306). Post-intervention data (Sept 2017-Aug 2019) revealed a 39.9% reduction in costs related to blood tests (a savings of CAD$7304/mo), particularly those tests of lower clinical utility. The performance of essential investigations, such as measurement of creatinine levels, were similar pre- and post-intervention, and thus acted a control measure. The effects of this intervention were sustained. CONCLUSIONS This simple and inexpensive intervention reduced unnecessary ordering of preeclampsia investigations. This resulted in annualized savings of CAD$87 643 and reduced iatrogenic blood loss, with no evidence of harm. Efforts to scale and spread this clinical tool will further improve health care delivery for pregnant patients.
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Gris JC, Bouvier S, Cochery-Nouvellon É, Mercier É, Mousty È, Pérez-Martin A. The role of haemostasis in placenta-mediated complications. Thromb Res 2020; 181 Suppl 1:S10-S14. [PMID: 31477220 DOI: 10.1016/s0049-3848(19)30359-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 03/06/2019] [Accepted: 03/14/2019] [Indexed: 12/20/2022]
Abstract
Normal pregnancy is associated with an increasing state of activation of the haemostatic system. This activation state is excessive in women with placenta-mediated pregnancy complications (PMPCs), including preeclampsia (PE). Platelet activation plays a crucial pathophysiological role in PE. The very early activation of coagulation in the intervillous space is mandatory for placental growth and morphogenesis but its excesses and/or inadequate control may participate to the emergence of the trophoblastic phenotype of PE. Extracellular vesicles, of endothelial but also of trophoblastic origin, can favour key cellular reactions of preeclampsia, acting as proactive cofactors. The understanding of this intricate relationship between haemostasis activation and PMPCs may provide interesting keys for new pathophysiological therapeutic developments.
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Affiliation(s)
- Jean-Christophe Gris
- Department of Haematology, Nîmes University Hospital, France; University of Montpellier, France; The First I.M. Sechenov Moscow State Medical University, Russian Federation.
| | - Sylvie Bouvier
- Department of Haematology, Nîmes University Hospital, France; University of Montpellier, France
| | | | - Éric Mercier
- Department of Haematology, Nîmes University Hospital, France; University of Montpellier, France
| | - Ève Mousty
- Department of Gynaecology and Obstetrics, Nîmes University Hospital, France
| | - Antonia Pérez-Martin
- University of Montpellier, France; Department of Vascular Imaging and Vascular Medicine, Nîmes University Hospital, France
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12
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Yuan X, Gao Y, Zhang M, Long W, Liu J, Wang H, Yu B, Xu J. Association of maternal D-dimer level in late pregnancy with birth outcomes in a Chinese cohort. Clin Chim Acta 2019; 501:258-263. [PMID: 31730819 DOI: 10.1016/j.cca.2019.10.048] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 10/30/2019] [Accepted: 10/31/2019] [Indexed: 12/19/2022]
Abstract
OBJECTIVE To investigate the association of D-dimer level during late pregnancy with birth outcomes in a Chinese population. METHODS A retrospective observational cohort study of 11,570 pregnant women who delivered in a single central hospital was conducted. Maternal plasma D-dimer levels at hospital admission and pregnancy outcomes were abstracted and analyzed from laboratory information system and hospital records, respectively. RESULTS Maternal plasma D-dimer levels were associated with higher fetal growth indicators for the highest vs. lowest quartile (Q) of D-dimer (mean birth weight: 145.79 g, mean birth length: 0.11 cm, mean gestational age: 0.30 week). Increase in D-dimer quartiles were associated with an decreased risk for small for gestational age (SGA), low birth weight (LBW) and preterm birth (PTB) neonates, and with an increased risk for large for gestational age (LGA), and macrosomia infants (SGA: OR = 0.52, 95% CI: 0.43, 0.64; LBW: OR = 0.58, 95% CI: 0.38, 0.86; PTB: OR = 0.44, 95% CI: 0.35, 0.55; LGA: OR = 2.37, 95% CI: 2.01, 2.78; macrosomia: OR = 2.59, 95% CI, 2.06, 3.24; for Q4 vs. Q1). CONCLUSION Maternal plasma D-dimer levels during late pregnancy were associated with birth outcomes and had risk evaluation value for these outcomes.
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Affiliation(s)
- Xiaosong Yuan
- Department of Medical Genetics, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, No. 16 Ding Xiang Road, Changzhou, Jiangsu Province, China
| | - Yanfang Gao
- Department of Laboratory Medicine, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, No. 16 Ding Xiang Road, Changzhou, Jiangsu Province, China.
| | - Ming Zhang
- Department of Laboratory Medicine, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, No. 16 Ding Xiang Road, Changzhou, Jiangsu Province, China
| | - Wei Long
- Department of Medical Genetics, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, No. 16 Ding Xiang Road, Changzhou, Jiangsu Province, China
| | - Jianbing Liu
- Department of Medical Genetics, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, No. 16 Ding Xiang Road, Changzhou, Jiangsu Province, China
| | - Huiyan Wang
- Department of Obstetrics and Gynecology, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, No. 16 Ding Xiang Road, Changzhou, Jiangsu Province, China
| | - Bin Yu
- Department of Medical Genetics, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, No. 16 Ding Xiang Road, Changzhou, Jiangsu Province, China.
| | - Jun Xu
- Department of Medical Genetics, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, No. 16 Ding Xiang Road, Changzhou, Jiangsu Province, China.
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Viau-Lapointe J, Arsenault MP. New evidence in diagnosis of pulmonary embolism during pregnancy. Obstet Med 2019; 13:120-124. [PMID: 33093863 DOI: 10.1177/1753495x19875589] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 08/19/2019] [Indexed: 12/28/2022] Open
Abstract
Diagnosis of pulmonary embolism (PE) in pregnancy is notoriously difficult and lacking high quality evidence. Three studies (DiPEP, ARTEMIS and CT-PE-Pregnancy) evaluating a systematic approach to PE diagnosis have recently been published. DiPEP is a retrospective case-control study that found a poor utility of clinical decision rules or D-dimer testing for PE diagnosis in pregnancy. ARTEMIS and CT-PE-Pregnancy are well conducted prospective management studies that proposed two algorithms with different clinical decision rules and D-dimer criteria for the diagnosis of PE in pregnancy. They included few events in high risk patients, which makes difficult the assessment of both algorithm's safety in women with a high probability of PE. Considering this new evidence, D-dimer testing might be useful to avoid radiation imaging in pregnant women considered at low risk for PE. In contrast, a negative D-dimer cannot be considered sufficiently safe to rule out PE when clinicians estimate that PE is the most likely diagnosis.
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Affiliation(s)
- Julien Viau-Lapointe
- Département de médecine, Hôpital Maisonneuve-Rosemont, Université de Montréal, Canada
| | - Marie-Pier Arsenault
- Département de médecine, Hôpital Maisonneuve-Rosemont, Université de Montréal, Canada
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Baboolall U, Zha Y, Gong X, Deng DR, Qiao F, Liu H. Variations of plasma D-dimer level at various points of normal pregnancy and its trends in complicated pregnancies: A retrospective observational cohort study. Medicine (Baltimore) 2019; 98:e15903. [PMID: 31169703 PMCID: PMC6571379 DOI: 10.1097/md.0000000000015903] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
D-Dimer (DD) is the smallest fragment of plasmin-mediated cleavage of fibrin. There is a progressive increase in DD concentration with advancing gestation in normal pregnancies, making the upper limit of 0.5 μg/ml used in non-pregnant population an unfavorable marker during pregnancy. Coagulation and fibrinolysis parameters are also markedly disturbed in pregnancies complicated by various pathologies.We designed this retrospective observational cohort study to investigate the trimester specific reference range for DD throughout normal pregnancy, and to compare the distribution of DD in third trimester healthy pregnancies and those complicated by preeclampsia (PE), severe preeclampsia (SPE), gestational diabetes mellitus (GDM), premature rupture of membranes (PROM) and preterm premature rupture of membranes (PPROM). In addition, we aimed to determine the diagnostic value of DD in PE and SPE.In this retrospective observational cohort study, 250 normal and 178 complicated pregnancies were included. Normal pregnancies included 88-first trimester, 101-second trimester and 61-third trimester pregnancies. Complicated pregnancy included 34 PE, 44 SPE, 32 GDM, 33 PROM, and 35 PPROM cases during the third trimester. Predefined exclusion criteria were used.The period of gestation (POG) accounted for 41.9% of the variance in DD, with strong correlation between the POG and DD. The trimester specific reference intervals were computed. The distribution for severe preeclampsia was statistically different compared to other categories in the third trimester. This exceptional distribution led to the generation of a receiver operating characteristic (ROC) curve with an area under curve of 0.828, attesting its possible role in predicting severe preeclampsia.We determined trimester specific reference intervals of DD. The role of DD has been explored, and it may be of diagnostic value in severe preeclampsia.
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Lucena FC, Lage EM, Teixeira PG, Barbosa AS, Diniz R, Lwaleed B, Talvani A, Alpoim PN, Perucci LO, Dusse LMS. Longitudinal assessment of D-dimer and plasminogen activator inhibitor type-1 plasma levels in pregnant women with risk factors for preeclampsia. Hypertens Pregnancy 2019; 38:58-63. [PMID: 30760065 DOI: 10.1080/10641955.2019.1577435] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
OBJECTIVE Investigating D-Dimer/D-Di and plasminogen activator inhibitor type-1/PAI-1 levels throughout gestation in women with preeclampsia/PE risk factors. METHODS D-Di and PAI-1 plasma levels were determined in 28 women at 12-19, 20-29, 30-34 and 35-40 weeks of gestation. RESULTS D-Di was lower at 12-19 weeks and higher at 30-34 weeks in women who developed PE versus who did not develop it. D-Di increased throughout gestation in both groups, peaking earlier in pregnant women who developed PE versus who did not develop it. PA1-1 increased across gestation, but it didn't differ between groups. CONCLUSION D-Di was able to discriminate these groups of women at 12-19 and 30-34 weeks of gestation.
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Affiliation(s)
- Flávia Campos Lucena
- a Department of Clinical and Toxicological Analysis, Faculty of Pharmacy , Federal University of Minas Gerais , Belo Horizonte , Brazil
| | - Eura Martins Lage
- b Department of Gynecology and Obstetrics, Faculty of Medicine , Federal University of Minas Gerais , Belo Horizonte , Brazil
| | - Patrícia Gonçalves Teixeira
- b Department of Gynecology and Obstetrics, Faculty of Medicine , Federal University of Minas Gerais , Belo Horizonte , Brazil
| | - Alexandre Simões Barbosa
- b Department of Gynecology and Obstetrics, Faculty of Medicine , Federal University of Minas Gerais , Belo Horizonte , Brazil
| | - Rejane Diniz
- c Department of Epidemiology , Veterinary School, Federal University of Minas Gerais , Belo Horizonte , Brazil
| | - Bashir Lwaleed
- d Department of Urology , University of Soutampton , Southampton , UK
| | - André Talvani
- e Department of Biological Sciences, Institute of Exact and Biological Sciences , Federal University of Ouro Preto , Ouro Preto , Brazil
| | - Patrícia Nessralla Alpoim
- a Department of Clinical and Toxicological Analysis, Faculty of Pharmacy , Federal University of Minas Gerais , Belo Horizonte , Brazil
| | - Luiza Oliveira Perucci
- f Nucleus of Research in Biological Sciences , Federal University of Ouro Preto , Ouro Preto , Brazil
| | - Luci Maria SantAna Dusse
- a Department of Clinical and Toxicological Analysis, Faculty of Pharmacy , Federal University of Minas Gerais , Belo Horizonte , Brazil
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The clinical significance of D-dimer concentrations in patients with gestational hypertensive disorders according to the severity. Obstet Gynecol Sci 2017; 60:542-548. [PMID: 29184862 PMCID: PMC5694728 DOI: 10.5468/ogs.2017.60.6.542] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 06/22/2017] [Accepted: 07/05/2017] [Indexed: 11/08/2022] Open
Abstract
Objective Pregnancy is a major risk factor of thromboembolism, and the patients with preeclampsia (PE) are known to have higher risk of thromboembolic complications than normal pregnant women. D-dimer is a well-established laboratory marker for the screening of venous thromboembolism (VTE), but the concentrations of d-dimer tend to increase physiologically in pregnant women throughout the gestational age. We performed this study to evaluate the clinical significance of d-dimer concentrations in patients with gestational hypertensive disorders (GHD) according to the severity. Methods Retrospective cohort study was performed in one institution. Singleton pregnant women with GHD were enrolled, and their antepartum concentrations of d-dimer were measured as a part of routine evaluation for patients suspected with PE. Patients with multiple gestations, rheumatic diseases, autoimmune diseases, or suspected VTE were excluded. A categorization of severity about PE was based on the general criteria. Results In 73.3% of study population, their d-dimer concentrations exceeded the normal range (>0.55 mg/L). A significantly greater proportion of pregnant women had excessive concentrations of d-dimer in the severe GHD than in the non-severe GHD (89.8% vs. 53.7%; P<0.01). Patients with severe GHD had significantly higher median concentrations of d-dimer than those with non-severe GHD (median [range], 2.00 mg/L [0.11 to 7.49] vs. 0.71 mg/L [0.09 to 5.39]; P<0.01) although their earlier gestational ages of sampling. Conclusion Maternal concentrations of d-dimer were significantly elevated in patients with severe features than those without severe features among those with GHD. Some pregnant women with GHD can have markedly elevated concentrations of d-dimer without any evidence of current VTE.
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Abstract
Preeclampsia (PE) is disorder of new onset hypertension and proteinuria during the second half of pregnancy. There is increasing evidence to implicate placental over-expression of tissue factor and PAR-1 in the pathophysiology of PE. Excessive activation of platelets, neutrophils and the complement system may also contribute to the placental pathology and maternal endothelial responsible for the symptoms of PE. Increased knowledge in this field may identify new therapeutic strategies for the treatment of PE.
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Affiliation(s)
- Chris Gardiner
- Haemostasis Research Unit, Department of Haematology, University College London, United Kingdom.
| | - Manu Vatish
- Nuffield Department of Obstetrics and Gynaecology, University of Oxford, Oxford, United Kingdom
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18
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Grossman KB, Arya R, Peixoto AB, Akolekar R, Staboulidou I, Nicolaides KH. Maternal and pregnancy characteristics affect plasma fibrin monomer complexes and D-dimer reference ranges for venous thromboembolism in pregnancy. Am J Obstet Gynecol 2016; 215:466.e1-8. [PMID: 27179442 DOI: 10.1016/j.ajog.2016.05.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 04/28/2016] [Accepted: 05/04/2016] [Indexed: 01/03/2023]
Abstract
BACKGROUND D-dimers have a high negative predictive value for excluding venous thromboembolism outside of pregnancy but the use in pregnancy remains controversial. A higher cut-off value has been proposed in pregnancy due to a continuous increase across gestation. Fibrin monomer complexes have been considered as an alternative diagnostic tool for exclusion of venous thromboembolism in pregnancy due to their different behavior. OBJECTIVE We sought to establish normal values of fibrin monomer complexes and D-dimer as a diagnostic tool for the exclusion of venous thromboembolism in pregnancy and examine the effect of maternal and obstetric factors on these markers. STUDY DESIGN Plasma D-dimer and fibrin monomer complexes were measured by quantitative immunoturbidimetry in 2870 women with singleton pregnancies attending their routine first-trimester hospital visit in a prospective screening study for adverse obstetric outcome. Multiple regression analysis was used to determine maternal characteristics and obstetric factors affecting the plasma concentrations and converting these into multiple of the median values after adjusting for significant maternal and obstetric characteristics. RESULTS Plasma fibrin monomer complexes increased with maternal weight and were lower in women with a history of cocaine abuse and chronic hypertension. D-dimers increased with gestational age and maternal weight and were higher in sickle cell carriers and in women of African and South Asian racial origin compared to Caucasians. CONCLUSION Fibrin monomer complexes and D-dimers are affected by maternal and obstetric characteristics rather than only gestational age. The utility of these fibrin-linked markers as a tool for exclusion of venous thromboembolism in pregnancy might be improved by adjusting for patient-specific characteristics.
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Kell DB, Kenny LC. A Dormant Microbial Component in the Development of Preeclampsia. Front Med (Lausanne) 2016; 3:60. [PMID: 27965958 PMCID: PMC5126693 DOI: 10.3389/fmed.2016.00060] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 11/04/2016] [Indexed: 12/12/2022] Open
Abstract
Preeclampsia (PE) is a complex, multisystem disorder that remains a leading cause of morbidity and mortality in pregnancy. Four main classes of dysregulation accompany PE and are widely considered to contribute to its severity. These are abnormal trophoblast invasion of the placenta, anti-angiogenic responses, oxidative stress, and inflammation. What is lacking, however, is an explanation of how these themselves are caused. We here develop the unifying idea, and the considerable evidence for it, that the originating cause of PE (and of the four classes of dysregulation) is, in fact, microbial infection, that most such microbes are dormant and hence resist detection by conventional (replication-dependent) microbiology, and that by occasional resuscitation and growth it is they that are responsible for all the observable sequelae, including the continuing, chronic inflammation. In particular, bacterial products such as lipopolysaccharide (LPS), also known as endotoxin, are well known as highly inflammagenic and stimulate an innate (and possibly trained) immune response that exacerbates the inflammation further. The known need of microbes for free iron can explain the iron dysregulation that accompanies PE. We describe the main routes of infection (gut, oral, and urinary tract infection) and the regularly observed presence of microbes in placental and other tissues in PE. Every known proteomic biomarker of "preeclampsia" that we assessed has, in fact, also been shown to be raised in response to infection. An infectious component to PE fulfills the Bradford Hill criteria for ascribing a disease to an environmental cause and suggests a number of treatments, some of which have, in fact, been shown to be successful. PE was classically referred to as endotoxemia or toxemia of pregnancy, and it is ironic that it seems that LPS and other microbial endotoxins really are involved. Overall, the recognition of an infectious component in the etiology of PE mirrors that for ulcers and other diseases that were previously considered to lack one.
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Affiliation(s)
- Douglas B. Kell
- School of Chemistry, The University of Manchester, Manchester, UK
- The Manchester Institute of Biotechnology, The University of Manchester, Manchester, UK
- Centre for Synthetic Biology of Fine and Speciality Chemicals, The University of Manchester, Manchester, UK
- *Correspondence: Douglas B. Kell,
| | - Louise C. Kenny
- The Irish Centre for Fetal and Neonatal Translational Research (INFANT), University College Cork, Cork, Ireland
- Department of Obstetrics and Gynecology, University College Cork, Cork, Ireland
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Elevated venous thromboembolism risk in preeclampsia: molecular mechanisms and clinical impact. Biochem Soc Trans 2015; 43:696-701. [PMID: 26551715 DOI: 10.1042/bst20140310] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Indexed: 11/17/2022]
Abstract
Venous thromboembolism (VTE) remains a leading cause of maternal death and morbidity in the developed world. Strategies for prevention of VTE in pregnancy have been the subject of recent guidelines and consensus statements. These guidelines recommend thrombosis prevention in women who have risk factors associated with an elevated VTE risk. Preeclampsia is characterized by maternal hypertension and proteinuria developing after 20 weeks gestation, complicating up to 7% of pregnancies and is associated with a massive annual morbidity and mortality burden. Women with preeclampsia have been shown to be at increased risk of VTE with studies to date suggesting that this risk may be up to 5-fold greater than the risk of pregnancy-associated VTE in the general population. Despite the fact that preeclampsia is so common and potentially devastating, our understanding of its pathogenesis and potential therapeutic strategies remain poor. In addition, the mechanisms underlying the prothrombotic phenotype in preeclampsia are also poorly characterized although a number of potential mechanisms have been postulated. Derangements of platelet and endothelial activation and impairment of endogenous anti-coagulant pathways have been reported and may contribute to the observed VTE risk. Recently, evidence for the role of neutrophil extracellular traps (NETs) and cell-free DNA in the pathogenesis of VTE has emerged and some evidence exists to suggest that this may be of relevance in preeclampsia. Future studies aimed at understanding the diagnostic and potential therapeutic relevance of this procoagulant state are likely to be of enormous clinical benefit for pregnant women affected with this potentially devastating condition.
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Jardim LL, Rios DRA, Perucci LO, de Sousa LP, Gomes KB, Dusse LMS. Is the imbalance between pro-angiogenic and anti-angiogenic factors associated with preeclampsia? Clin Chim Acta 2015; 447:34-8. [PMID: 25982781 DOI: 10.1016/j.cca.2015.05.004] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2015] [Revised: 05/06/2015] [Accepted: 05/07/2015] [Indexed: 01/03/2023]
Abstract
BACKGROUND Preeclampsia (PE) is a multisystem disease characterized by the development of hypertension and proteinuria. Although PE etiology is not fully known, the placenta seems to play a central role in the development of disease. The inadequate placentation process results in a change in angiogenic factors levels, such as vascular endothelial growth factor (VEGF), placental growth factor (PlGF), soluble form of endoglin (s-Eng) and soluble form of vascular endothelial growth factor receptor type 1 (sFlt-1). OBJECTIVE The aim of this review was to clarify if the imbalance between pro-angiogenic and anti-angiogenic factors is associated with PE. CONCLUSION It is known that inadequate placentation process is the primary mechanism suggested for PE occurrence and angiogenic factors are involved in this process. The state-of-the-art suggests that progress in grasp the imbalance of pro-angiogenic and anti-angiogenic factors is essential for the improvement of knowledge about PE. The development of prospective, longitudinal studies with serial determinations of these factors throughout pregnancy is needed to better assess the relevance of these markers for understanding the etiology, prevention, diagnosis, prognosis and treatment of this challenging disease.
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Affiliation(s)
- Letícia Lemos Jardim
- Departamento de Clínica Médica, Faculdade de Medicina, Universidade Federal de Minas Gerais, Brazil
| | | | - Luíza Oliveira Perucci
- Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Brazil
| | - Lirlândia Pires de Sousa
- Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Brazil
| | - Karina Braga Gomes
- Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Brazil
| | - Luci Maria S Dusse
- Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Brazil.
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Fibrinolytic system in preeclampsia. Clin Chim Acta 2013; 416:67-71. [DOI: 10.1016/j.cca.2012.10.060] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2012] [Revised: 10/11/2012] [Accepted: 10/21/2012] [Indexed: 02/06/2023]
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