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D-dimer Pregnancy

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https://www.readbyqxmd.com/read/28605659/trimester-specific-coagulation-and-anticoagulation-reference-intervals-for-healthy-pregnancy
#1
Chanjuan Cui, Shuo Yang, Jie Zhang, Guojing Wang, Shengkai Huang, Aiwei Li, Yuncong Zhang, Rui Qiao
BACKGROUND: Due to the normal physiological need of pregnancy and childbirth, the haemostatic system of pregnant women is different from that of healthy non-pregnant women. The aim of this study was to establish trimester-specific reference intervals of coagulation screening tests and thrombophilia markers in pregnancies without complications of females with Han ethnicity from North China. METHODS: In total 744 Han healthy pregnant women (first trimester 207 cases, second trimester 222 cases and third trimester 315 cases) and 121 healthy non-pregnant women were recruited in North China...
May 24, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28583609/global-hemostasis-in-healthy-bitches-during-pregnancy-and-at-different-estrous-cycle-stages-evaluation-of-routine-hemostatic-tests-and-thromboelastometry
#2
Sigal Klainbart, Alexandra Slon, Efrat Kelmer, Tali Bdolah-Abram, Tal Raz, Gilad Segev, Itamar Aroch, Smadar Tal
This study assessed the global hemostasis (including prothrombin time [PT], activated partial thromboplastin time [aPTT], antithrombin activity [ATA], fibrinogen and d-Dimer concentrations, platelet count, plateletcrit and thromboelastometry) in healthy pregnant bitches, comparing the results with those of healthy bitches at different estrous cycle stages, and assessed whether hemostatic changes during pregnancy are associated with serum progesterone concentration or the presence of fetuses in utero. The results show that pregnant bitches have higher fibrinogen concentration, platelet count and platelatecrit, and that fibrin and global clot formations occur faster than in non-pregnant bitches at different estrous cycle stages...
July 15, 2017: Theriogenology
https://www.readbyqxmd.com/read/28504829/prediction-of-thrombophilia-in-patients-with-unexplained-recurrent-pregnancy-loss-using-a-statistical-model
#3
Tongfei Wang, Xiaomin Kang, Liying He, Zhilan Liu, Haijing Xu, Aimin Zhao
OBJECTIVE: To establish a statistical model to predict thrombophilia in patients with unexplained recurrent pregnancy loss (URPL). METHODS: A retrospective case-control study was conducted at Ren Ji Hospital, Shanghai, China, from March 2014 to October 2016. The levels of D-dimer (DD), fibrinogen degradation products (FDP), activated partial thromboplastin time (APTT), prothrombin time (PT), thrombin time (TT), fibrinogen (Fg), and platelet aggregation in response to arachidonic acid (AA) and adenosine diphosphate (ADP) were collected...
May 15, 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28360822/impact-of-blood-hypercoagulability-on-in-vitro-fertilization-outcomes-a-prospective-longitudinal-observational-study
#4
Grigoris T Gerotziafas, Patrick Van Dreden, Emmanuelle Mathieu d'Argent, Eleftheria Lefkou, Matthieu Grusse, Marjorie Comtet, Rabiatou Sangare, Hela Ketatni, Annette K Larsen, Ismail Elalamy
BACKGROUND: Blood coagulation plays a crucial role in the blastocyst implantation process and its alteration may be related to in vitro fertilization (IVF) failure. We conducted a prospective observational longitudinal study in women eligible for IVF to explore the association between alterations of coagulation with the IVF outcome and to identify the biomarkers of hypercoagulability which are related with this outcome. METHODS: Thirty-eight women eligible for IVF (IVF-group) and 30 healthy, age-matched women (control group) were included...
2017: Thrombosis Journal
https://www.readbyqxmd.com/read/28262243/pitfalls-in-the-diagnostic-management-of-pulmonary-embolism-in-pregnancy
#5
Cécile Tromeur, Liselotte M van der Pol, Frederikus A Klok, Francis Couturaud, Menno V Huisman
Women are at increased risk of venous thromboembolism (VTE) during pregnancy and VTE remains one of the main causes of maternal mortality in developed countries (Konstantinides SV, et al. Eur Heart J 2014; 35(43):3033-69, 69a-69k). Although an accurate diagnosis of acute pulmonary embolism (PE) in pregnant patients is thus of crucial importance, the diagnostic management of suspected PE is challenging for this specific patient category. As D-dimer levels increase physiologically throughout pregnancy, the optimal D-dimer threshold to rule out PE during pregnancy remains unknown...
March 2017: Thrombosis Research
https://www.readbyqxmd.com/read/27913507/diagnosis-of-suspected-venous-thromboembolism
#6
REVIEW
Clive Kearon
The primary goal of diagnostic testing for venous thromboembolism (VTE) is to identify all patients who could benefit from anticoagulant therapy. Test results that identify patients as having a ≤2% risk of VTE in the next 3 months are judged to exclude deep vein thrombosis (DVT) or pulmonary embolism (PE). Clinical evaluation, with assessment of: (1) clinical pretest probability (CPTP) for VTE; (2) likelihood of important alternative diagnoses; and (3) the probable yield of D-dimer and various imaging tests, guide which tests should be performed...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27720446/use-of-clinical-prediction-rules-and-d-dimer-tests-in-the-diagnostic-management-of-pregnant-patients-with-suspected-acute-pulmonary-embolism
#7
REVIEW
L M Van der Pol, A T A Mairuhu, C Tromeur, F Couturaud, M V Huisman, F A Klok
Because pregnant women have an increased risk of venous thromboembolism (VTE) and at the same time normal pregnancy is associated with symptoms, mimicking those present in the setting of acute pulmonary embolism (PE), the latter diagnosis is frequently suspected in this patient category. Since imaging tests expose both mother and foetus to ionizing radiation, the ability to rule out PE based on non-radiological diagnostic tests is of paramount importance. However, clinical decision rules have only been scarcely evaluated in the pregnant population with suspected PE, while D-dimer levels lose diagnostic accuracy due to a physiological increase during normal pregnancy...
March 2017: Blood Reviews
https://www.readbyqxmd.com/read/27671047/-study-on-the-dynamic-changes-of-d-dimer-during-pregnancy-and-early-puerperium
#8
D Xu, S P Cai, J W Xu, C Liang, J He
Objective: To explore the dynamic changes of D-dimers during pregnancy and early puerperium(within 3 days postpartum). Methods: A retrospective study was performed among 8 367 healthy women who had term singleton delivery in Women's Hospital, School of Medicine, Zhejiang University from January 2007 to December 2014. D-dimers concentrations during pregnancy and early puerprium of all the cases were collected. Data of 21 065 D-dimers tests were assigned to 5 groups according to the time of sampling, including early pregnancy(≤12 gestation weeks), middle pregnancy(12-28 gestation weeks), late pregnancy(>28 gestation weeks), 1 postpartum(within 48 hours postpartum)and 2 postpartum(48- 72 hours postpartum)...
September 25, 2016: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/27592487/clinical-study-on-the-influence-of-phloroglucinol-on-plasma-angiotensin-ii-and-d-dimer-index-in-patients-with-severe-pregnancy-induced-hypertension
#9
RANDOMIZED CONTROLLED TRIAL
Liang Ai, Xinzhi Lan, Limin Wang, Yanjie Xu, Bin Zhang
To observe the effect of phloroglucinol on plasma angiotensin II and D-dimer index when it was applied to patients with severe pregnancy-induced hypertension. 212 cases of severe pregnancy-induced hypertension patients diagnosed clinically were selected to be randomly divided into the research group and the control group. The research groups were given phloroglucinol, while the control groups were given magnesium sulfate. The plasma angiotensin II and D-dimer index in patients were detected before treatment and after 7 days respectively with statistical analysis of results...
July 2016: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/27512498/perinatal-determinants-of-d-dimer-levels-in-a-cross-sectional-study-of-low-risk-pregnant-women
#10
N M Murphy, A S Khashan, D I Broadhurst, O Gilligan, K O'Donoghue, L C Kenny
BACKGROUND: To examine perinatal determinants of the antenatal levels of D-dimers. METHODS: Cross-sectional study of 760 low risk pregnant women recruited into five gestational groups. Variables examined in antenatal groups included maternal age, body mass index, parity, smoking, family history venous thromboembolism (VTE) and previous use of the oral contraceptive pill (OCP). Onset of labour and mode of delivery were also examined in the post-natal group. RESULTS: D-dimer levels in group 4 (38-40 + 6) were significantly lower in the women with a history of taking the OCP when compared to those that had not taken it in the past (P = 0...
June 2016: Obstetric Medicine
https://www.readbyqxmd.com/read/27504325/a-prospective-study-of-the-clinical-profile-outcome-and-evaluation-of-d-dimer-in-cerebral-venous-thrombosis
#11
Venkatesh Thammishetti, Subrahmanyam Dharanipragada, Debdatta Basu, Ramesh Ananthakrishnan, Deepanjali Surendiran
INTRODUCTION: Cerebral Venous Thrombosis (CVT) is a well known disease with diverse clinical presentation and causes. With advances in neuroimaging and changing lifestyles, the clinical profile and causes of CVT are changing. D-dimer has been studied in early diagnosis of CVT with variable results. This prospective study was carried out to assess the clinical profile of CVT and role of D-dimer in diagnosis of CVT. AIM: To study various aspects of CVT and role of D-dimer...
June 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27487510/evaluation-of-bone-marrow-with-particular-consideration-of-the-megakaryocyte-lineage-and-coagulation-profile-in-the-pregnant-fallow-deer-dama-dama
#12
A Snarska, P Sobiech
The aim of the study was to evaluate the megakaryocyte lineage of bone marrow and coagulation parameters in fallow deer during the last month of pregnancy. The animals were managed in the barn-feeding system. Twenty female fallow deer, aged 2-3 years, divided into 2 groups were used in the study. Group 1 comprised the females in the last month of pregnancy, and the non-pregnant females were used as the control. All the animals were clinically healthy. Coagulation parameters were measured in all the deer: thrombin time (TT), prothrombin time (PT), activated partial thromboplastin time (APTT), and plasma concentrations of fibrinogen, D-dimer, and antithrombin III...
2016: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/27294274/relationship-between-plasma-d-dimer-concentration-and-three-dimensional-ultrasound-placental-volume-in-women-at-risk-for-placental-vascular-diseases-a-monocentric-prospective-study
#13
Cécile Fanget, Céline Chauleur, Amandine Stadler, Emilie Presles, Marie-Noëlle Varlet, Jean-Christophe Gris, Tiphaine Raia-Barjat
INTRODUCTION: The aim of this study was to correlate placental volumes deduced from three-dimensional ultrasound and virtual organ computer-aided analysis (VOCAL) software with systemic concentrations of D-dimer and soluble endothelial protein C receptor (sEPCR). METHODS: This was a monocentric experimental prospective study conducted from October 2008 to July 2009. Forty consecutive patients at risk of placental vascular pathology (PVP) recurrence or occurrence were included...
2016: PloS One
https://www.readbyqxmd.com/read/27190521/large-d-dimer-fluctuation-in-normal-pregnancy-a-longitudinal-cohort-study-of-4-117-samples-from-714-healthy-danish-women
#14
Katrine K Hedengran, Malene R Andersen, Steen Stender, Pal B Szecsi
Introduction. D-dimer levels increase throughout pregnancy, hampering the usefulness of the conventional threshold for dismissing thromboembolism. This study investigates the biological fluctuation of D-dimer in normal pregnancy. Methods. A total of 801 healthy women with expected normal pregnancies were recruited. D-dimer was repeatedly measured during pregnancy, at active labor, and on the first and second postpartum days. Percentiles for each gestational week were calculated. Each individual D-dimer was normalized by transformation into percentiles for the relevant gestational age or delivery group...
2016: Obstetrics and Gynecology International
https://www.readbyqxmd.com/read/27179442/maternal-and-pregnancy-characteristics-affect-plasma-fibrin-monomer-complexes-and-d-dimer-reference-ranges-for-venous-thromboembolism-in-pregnancy
#15
Karin B Grossman, Roopen Arya, Alberto B Peixoto, Ranjit Akolekar, Ismini Staboulidou, Kypros H Nicolaides
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...
October 2016: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27174330/acute-fatty-liver-of-pregnancy-a-retrospective-analysis-of-56-cases
#16
Yan-Ping Zhang, Wei-Qi Kong, Sheng-Ping Zhou, Yun-Hui Gong, Rong Zhou
BACKGROUND: Acute fatty liver of pregnancy (AFLP) is a rare but life-threatening complication occurring in the third trimester. It is often fatal to both mother and fetus. The complicated clinical manifestations as well as an insufficient understanding of the disease make the precise diagnosis and effective treatment of AFLP challenging. A full understanding of the risk factors, clinical features, and test findings of AFLP is critical for its timely diagnosis and treatment. METHODS: We performed a retrospective study of 56 patients with AFLP between June 2008 and July 2013...
May 20, 2016: Chinese Medical Journal
https://www.readbyqxmd.com/read/27123352/a-successful-mother-and-neonate-outcome-for-a-woman-with-essential-thrombocytosis-and-fv-leiden-heterozygosity
#17
Marianna Politou, Serena Valsami, Irontianta Gkorezi-Ntavela, Vasilios Telonis, Efrosyni Merkouri, Panagiotis Christopoulos
Essential thrombocytosis (ET) and FV Leiden heterozygosity represent an acquired and hereditable hypercoagulable state, respectively. An uncommon case of coexistence of ET and FV Leiden heterozygosity in a 36-year-old pregnant woman and her successful pregnancy outcome is described. She was considered to be at high risk of thrombosis during her pregnancy and she was treated with both prophylactic dose of LMWH and aspirin daily throughout her pregnancy and for a 6-week period postpartum. The efficacy of the anticoagulation treatment was monitored in various time points not only by measuring anti-Xa levels and D-Dimers but also with new coagulation methods such as rotation thromboelastometry and multiplate...
2016: Case Reports in Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27119048/diagnosing-pulmonary-embolism-in-pregnancy-are-biomarkers-and-clinical-predictive-models-useful
#18
Barbara V Parilla, Rachel Fournogerakis, Amy Archer, Suela Sulo, Lisa Laurent, Patricia Lee, Benazir Chhotani, Kathleen Hesse, Erik Kulstad
Objective The objective of this study was to evaluate whether trimester-specific D-dimer levels or the modified Wells score (MWS) is a useful risk stratification tool to exclude pregnant women at low risk of pulmonary embolism (PE) from diagnostic imaging. Study Design This is a prospective and retrospective cohort study. Pregnant women who underwent diagnostic imaging for suspected PE were prospectively enrolled. D-dimer serum levels were drawn, and a MWS was assigned. Pregnant women diagnosed with a PE before study launch who underwent diagnostic imaging and had a D-dimer level drawn were also evaluated...
April 2016: American Journal of Perinatology Reports
https://www.readbyqxmd.com/read/27089657/-pre-thrombotic-hypercoagulable-state-hypercoagulable-disease
#19
Hideo Wada
A pre-thrombotic (hypercoagulable) state is observed in patients with thrombophilia, malignant diseases, pregnancy, auricular fibrillation, connective tissue diseases, prosthetic replacement arthroplasty, infection, or old age, and these states are also caused by dehydration, remaining in the same position for a long time, or estrogen drugs. Such patients have a high risk of developing thrombosis. The pre-thrombotic state is diagnosed or excluded by fibrin-related markers (FRMs), such as soluble fibrin (SF), fibrinogen and fibrin degradation products (FDP), and D-dimer...
December 2015: Rinsho Byori. the Japanese Journal of Clinical Pathology
https://www.readbyqxmd.com/read/27061783/reference-intervals-of-routine-coagulation-assays-during-the-pregnancy-and-puerperium-period
#20
Jiao-Mei Gong, Yong Shen, Yan-Xia He
BACKGROUND: Significant changes occur in the coagulation and fibrinolytic systems during pregnancy and puerperium in the plasma levels. However, reference ranges based on healthy people are not optimal for informing clinical decisions during the pregnancy and puerperium. Therefore, it is essential to explore coagulation assays' reference ranges during the pregnancy and puerperium. METHODS: Prothrombin time (PT), activated partial thromboplastin time (APTT), thrombin time (TT), fibrinogen (Fib...
November 2016: Journal of Clinical Laboratory Analysis
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