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Heidari MM, Mazrouei B, Tahmasebi M, Bagheri F, Khanjankhani Z, Khatami M, Dehghani M, Khormizi FZ. Novel nucleotide variations in the thrombomodulin (THBD) gene involved in coagulation pathways can increase the risk of recurrent pregnancy loss (RPL). Gene 2024; 895:148011. [PMID: 37979949 DOI: 10.1016/j.gene.2023.148011] [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: 10/11/2023] [Revised: 11/06/2023] [Accepted: 11/15/2023] [Indexed: 11/20/2023]
Abstract
Recurrent pregnancy loss (RPL) is a common but complex complication in fertility conditions, affecting about 15-20% of couples. Although several causes have been proposed for RPL, it occurs in about 35-60% of cases without a known explanation. A strong assumption is that genetic factors play a role in the etiology and pathophysiology of PRL. Therefore, several genes are proposed as candidates in the pathogenesis of RPL. The current study aimed to investigate the effects of nucleotide changes in the THBD (thrombomodulin) gene as an RPL-related candidate gene. This gene encodes a cell receptor for thrombin and is involved in reproductive loss in RPL cases. Its involvement in the natural anticoagulant system has been extensively studied. By genetic screening of the entire coding and noncoding regions of the THBD gene, we found twenty-seven heterozygous and homozygous nucleotide changes. Ten of them led to amino acid substitutions, seven variants were identified in the promoter region, and eight of them occurred in 3'UTR. Potentially, the pathogenicity effects of these variations on THBD protein were evaluated by several prediction tools. The numerous genomic variations prompted noticeable modifications of the protein's structural and functional properties. Furthermore, in-silico scores were consistent with deleterious effects for these mutations. The results of this study provide genetic information that will be useful in the future for clinicians, scientists, and students to understand the unknown causes of RPL better. It may also pave the way for developing diagnostic/prognostic approaches to help treat PRL patients.
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Affiliation(s)
| | | | | | | | | | | | - Mohammadreza Dehghani
- Medical Genetics Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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Dhillon-Smith RK, Melo P, Kaur R, Fox E, Devall A, Woodhead N, Coomarasamy A. Interventions to prevent miscarriage. Fertil Steril 2023; 120:951-954. [PMID: 37648141 DOI: 10.1016/j.fertnstert.2023.08.955] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 08/23/2023] [Indexed: 09/01/2023]
Abstract
The physical and psychological impact of miscarriage can be devastating. There are many lifestyle and therapeutic interventions that may prevent a miscarriage. In this review, we have outlined the key areas for health optimization to prevent pregnancy loss, drawing on the most up-to-date evidence available. The 3 key areas identified are lifestyle optimization in women, lifestyle optimization in men, and therapeutic interventions. The evidence demonstrates that the treatments to consider are first-trimester progesterone administration, levothyroxine in women with subclinical hypothyroidism, and the combination of aspirin and heparin in women with antiphospholipid antibodies.
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Affiliation(s)
- Rima K Dhillon-Smith
- Tommy's National Centre for Miscarriage Research, Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom.
| | - Pedro Melo
- Nuffield Department of Women's and Reproductive Health, University of Oxford, Oxford, United Kingdom
| | - Rosinder Kaur
- Tommy's National Centre for Miscarriage Research, Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom
| | - Emily Fox
- Tommy's National Centre for Miscarriage Research, Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom
| | - Adam Devall
- Tommy's National Centre for Miscarriage Research, Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom; WHO Collaborating Centre for Global Women's Health, Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom
| | - Natalie Woodhead
- Tommy's National Centre for Miscarriage Research, Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom
| | - Arri Coomarasamy
- Tommy's National Centre for Miscarriage Research, Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom; WHO Collaborating Centre for Global Women's Health, Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom
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Cao C, Bai S, Zhang J, Sun X, Meng A, Chen H. Understanding recurrent pregnancy loss: recent advances on its etiology, clinical diagnosis, and management. MEDICAL REVIEW (BERLIN, GERMANY) 2022; 2:570-589. [PMID: 37724255 PMCID: PMC10471095 DOI: 10.1515/mr-2022-0030] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 11/14/2022] [Indexed: 09/20/2023]
Abstract
Recurrent pregnancy loss (RPL) has become an important reproductive health issue worldwide. RPL affects about 2%-3% of reproductive-aged women, and makes serious threats to women's physical and mental health. However, the etiology of approximately 50% of RPL cases remains unknown (unexplained RPL), which poses a big challenge for clinical management of these patients. RPL has been widely regarded as a complex disease where its etiology has been attributed to numerous factors. Heretofore, various risk factors for RPL have been identified, such as maternal ages, genetic factors, anatomical structural abnormalities, endocrine dysfunction, prethrombotic state, immunological factors, and infection. More importantly, development and applications of next generation sequencing technology have significantly expanded opportunities to discover chromosomal aberrations and single gene variants responsible for RPL, which provides new insight into its pathogenic mechanisms. Furthermore, based upon patients' diagnostic evaluation and etiologic diagnosis, specific therapeutic recommendations have been established. This review will highlight current understanding and recent advances on RPL, with a special focus on the immunological and genetic etiologies, clinical diagnosis and therapeutic management.
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Affiliation(s)
- Chunwei Cao
- Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong Province, China
- Guangzhou laboratory, Guangzhou, Guangdong Province, China
- Center for Reproductive Genetics and Reproductive Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong Province, China
| | - Shiyu Bai
- Reproductive Medicine Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Jing Zhang
- Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong Province, China
- Center for Reproductive Genetics and Reproductive Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong Province, China
| | - Xiaoyue Sun
- Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong Province, China
- Center for Reproductive Genetics and Reproductive Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong Province, China
| | - Anming Meng
- Guangzhou laboratory, Guangzhou, Guangdong Province, China
| | - Hui Chen
- Reproductive Medicine Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
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Detection of factor V G1691A, Prothrombin G20210A and Methylene tetra hydro folate reductase deficiency C677T Gene mutations among Sudanese Women with recurrent spontaneous abortion. Int J Health Sci (Qassim) 2022. [DOI: 10.53730/ijhs.v6ns1.6039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The current study is a prospective analytical case control study designed to investigate the relationship between Factor V Leiden G1691A, methylenetetrahydrofolate reductase (MTHFR) C677T and to the prothrombin G20210A mutation variant and adverse pregnancy outcomes. Material and Method: The study included hundred Sudanese women who experienced three or more of the adverse pregnancy loss as case group during their reproductive in the Omdurman Maternity Hospital (Sudan) these compared with ninety-four control group healthy women with at least more than two normal pregnancies and without any history of adverse pregnancy outcome or recurrent miscarriages. The study group data collected using structure questionnaire which was used to collect information about age, parity, medical and obstetric history, smoking, family medical and obstetric history, residency and relative marriage. Blood samples were collected from participants and total genomic DNA was isolated from blood leukocytes and the frequency of these gene mutations in the patients and controls were determined using PCR-restriction fragment length. Results the mutation was detected in 8 out of 100 cases (8.0%) and in 6 out of 94 controls (6.4%) (P- Value > 0.05).
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Wu Y, Xin M, Han Q, Wang J, Yin X, He J, Yin C. Extensive serum biomarker analysis in the prethrombotic state of recurrent spontaneous abortion. J Cell Mol Med 2021; 25:6679-6694. [PMID: 34132454 PMCID: PMC8278118 DOI: 10.1111/jcmm.16671] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 04/13/2021] [Accepted: 04/20/2021] [Indexed: 12/23/2022] Open
Abstract
The prethrombotic state (PTS) is a possible cause of recurrent spontaneous abortion (RSA). The aim of this study was to identify serum biomarkers for the detection of RSA with PTS (PSRSA). A Quantibody array 440 was used to screen novel serum‐based biomarkers for PSRSA/NRSA (RSA without PTS). Proteins differentially expressed in PSRSA were analysed using bioinformatics methods and subjected to a customized array and enzyme‐linked immunosorbent assay (ELISA) validation. We used receiver operating characteristic to calculate diagnostic accuracy, and machine learning methods to establish a biomarker model for evaluation of the identified targets. 20 targets were selected for validation using a customized array, and seven targets via ELISA. The decision tree model showed that IL‐24 was the first node and eotaxin‐3 was the second node distinguishing the PSRSA and NRSA groups (an accuracy rate of 100% and an AUC of 1). Epidermal growth factor (EGF) as the node distinguished the PSRSA and NC groups (an accuracy rate of 100% and an AUC of 1). EGF as the node distinguished the NRSA and NC groups (an accuracy rate of 96.5% and an AUC of 0.998). Serum DNAM‐1, BAFF, CNTF, LAG‐3, IL‐24, Eotaxin‐3 and EGF represent a panel of promising diagnostic biomarkers to detect the PSRSA.
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Affiliation(s)
- Ying Wu
- Department of Traditional Chinese Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - Mingwei Xin
- Department of Traditional Chinese Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - Qian Han
- Department of Traditional Chinese Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - Jingshang Wang
- Department of Traditional Chinese Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - Xiaodan Yin
- Department of Traditional Chinese Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - Junqin He
- Department of Traditional Chinese Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - Chenghong Yin
- Department of Traditional Chinese Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
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Zhang Y, Zhan W, Du Q, Wu L, Ding H, Liu F, Yin A. Variants c.677 C>T, c.1298 A>C in MTHFR, and c.66 A>G in MTRR Affect the Occurrence of Recurrent Pregnancy Loss in Chinese Women. Genet Test Mol Biomarkers 2020; 24:717-722. [PMID: 33121283 PMCID: PMC7698989 DOI: 10.1089/gtmb.2020.0106] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Objective: Although genetic variants of key enzymes in the folic acid-methionine metabolic circulation, including methylenetetrahydrofolate reductase (MTHFR) and methionine synthase reductase (MTRR) were thought to be related to the risk of recurrent pregnancy loss (RPL), the results of recent studies have been inconsistent. Therefore, the present retrospective case-control study was designed to explore whether the variants c.66A>G in MTRR and c.677C>T and c.1298A>C in MTHFR are associated with the susceptibility of RPL in Southeast Chinese women. Materials and Methods: In total, samples from 237 RPL patients and 618 healthy controls were collected and genotyped by fluorescent quantitative polymerase chain reaction. The frequencies of the variants were calculated and compared between the two groups. The relative risk of the various genotypes was further determined by calculating the odds ratio (OR) at a 95% confidence interval (CI). Results: A significant positive correlation was observed between the variants MTHFR c.677C>T, MTHFR c.1298A>C, MTRR c.66A>G, and RPL susceptibility (MTHFR c.677C>T, OR = 0.74, 95% CI = 0.58-0.95, p = 0.02; MTHFR c.1298A>C, OR = 1.39, 95% CI = 1.09-1.77, p = 0.008; MTRR c.66A>G, OR = 1.38, 95% CI = 1.10-1.73, p = 0.006). Further analysis of the genotypic distributions of the three variants between the two groups showed that the MTHFR c.677C>T heterozygote was associated with lower RPL risk, while the MTHFR c.1298A>C variant and MTRR c.66A>G heterozygote were correlated with higher RPL risk (dominant model, MTHFR c.677C>T, OR = 0.70, 95% CI = 0.52-0.95, p = 0.02; MTHFR c.1298A>C, OR = 1.39, 95% CI = 1.03-1.88, p = 0.032; MTRR c.66A>G, OR = 1.62, 95% CI = 1.20-2.19, p = 0.002). Conclusion: MTHFR c.677C>T and c.1298A>C and MTRR c.66A>G were associated with RPL in Southeast Chinese women.
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Affiliation(s)
- Yan Zhang
- Medical Genetics Center, Guangdong Women and Children Hospital, Guangzhou, P.R. China.,Maternal and Children Metabolic-Genetic Disease Key Laboratory of Guangdong Women and Children Hospital, Guangzhou, P.R. China
| | - Wenli Zhan
- Medical Genetics Center, Guangdong Women and Children Hospital, Guangzhou, P.R. China
| | - Qianyi Du
- Medical Genetics Center, Guangdong Women and Children Hospital, Guangzhou, P.R. China
| | - Li Wu
- Health Care Institute, Guangdong Women and Children Hospital, Guangzhou, P.R. China
| | - Hongke Ding
- Medical Genetics Center, Guangdong Women and Children Hospital, Guangzhou, P.R. China.,Maternal and Children Metabolic-Genetic Disease Key Laboratory of Guangdong Women and Children Hospital, Guangzhou, P.R. China
| | - Fenghua Liu
- Reproductive Center, Guangdong Women and Children Hospital, Guangzhou, P.R. China
| | - Aihua Yin
- Medical Genetics Center, Guangdong Women and Children Hospital, Guangzhou, P.R. China.,Maternal and Children Metabolic-Genetic Disease Key Laboratory of Guangdong Women and Children Hospital, Guangzhou, P.R. China
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Inherited thrombophilia and placenta-mediated pregnancy complications. GINECOLOGIA.RO 2020. [DOI: 10.26416/gine.27.1.2020.2871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
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Wang P, Yang H, Wang G, Tian J. Predictive value of thromboelastography parameters combined with antithrombin III and D-Dimer in patients with recurrent spontaneous abortion. Am J Reprod Immunol 2019; 82:e13165. [PMID: 31283067 DOI: 10.1111/aji.13165] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 06/02/2019] [Accepted: 06/22/2019] [Indexed: 12/29/2022] Open
Abstract
PROBLEM To investigate the value of thromboelastography (TEG) combined with antithrombin III (AT-III) and D-Dimer in predicting the occurrence of recurrent spontaneous abortion (RSA). METHOD OF STUDY One hundred and five RSA patients and 40 fertile women were enrolled. The subjects were subjected into four groups: group 1 (40 fertile women), group 2 (58 women with 2 abortions), group 3 (30 women with 3 abortions), and group 4 (17 women with four abortions). TEG was conducted on all subjects. Clotting time, reaction time, angle degree, coagulation index, and maximum amplitude were measured. The levels AT-III, D-Dimer, platelet counts, and fibrinogen concentration were determined. The ROC curve analysis was done using MedCalc software to analyse the diagnosis accuracy of the parameters of interest and the combined approach. RESULTS The AT-III level in all group 4 was significantly lower than in fertile women. The D-Dimer concentration, platelet count, and MA in patients with four prior abortions were significantly higher than the other three groups. CI and fibrinogen concentration in patients with four prior pregnancy losses were significantly higher than group 1. The ROC curves suggested that combined use of CI, MA, AT-III, and D-Dimer was with the highest accuracy 92.8%, thus predicting the most accurate diagnosis for RSA. CONCLUSION Recurrent spontaneous abortion is associated with abnormal coagulation and anticoagulation. TEG combined with detection of AT-III and D-Dimer levels can distinguish patient with RSA from those with normal fertility and highly possibly predict the occurrence of RSA.
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Affiliation(s)
- Ping Wang
- Department of Reproductive Medicine, Dezhou People's Hospital, Dezhou, China
| | - Hongjun Yang
- Department of Reproductive Medicine, Dezhou People's Hospital, Dezhou, China
| | - Guoying Wang
- Department of Reproductive Medicine, Dezhou People's Hospital, Dezhou, China
| | - Jun Tian
- Inspection Section, Dezhou People's Hospital, Dezhou, China
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Blomqvist L, Hellgren M, Strandell A. Acetylsalicylic acid does not prevent first-trimester unexplained recurrent pregnancy loss: A randomized controlled trial. Acta Obstet Gynecol Scand 2018; 97:1365-1372. [PMID: 29972884 DOI: 10.1111/aogs.13420] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 06/28/2018] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Recurrent pregnancy loss occurs in about 1% of fertile couples. Without proper evidence for an effect, different treatments have been used when no etiological factor has been detected. The present trial is the first randomized trial to compare 75 mg acetylsalicylic acid with placebo for women with recurrent pregnancy loss. MATERIAL AND METHODS This randomized, double-blind, placebo-controlled trial was conducted at a single center between 2008 and 2015. Recurrent pregnancy loss was defined as at least 3 consecutive first-trimester miscarriages within the couple. Women < 40 years old with a body mass index < 35 kg/m2 were eligible if the workup was negative. Randomization was through a third party, who manufactured and delivered the study drugs, and occurred when fetal heartbeat was detected, to either 75 mg acetylsalicylic acid or placebo; 200 women in each group. Group allocation was concealed until all the study participants had a pregnancy outcome registered. All women attended the same control program. Primary outcome was live birth. Statistical analyses were according to intention-to-treat. RESULTS All 400 women completed the follow up. Live birth rate was 83.0% (n = 166) and 85.5% (n = 171) for the acetylsalicylic acid and placebo groups, respectively (P = 0.58). The difference was -2.5% (95% CI -10.1% to 5.1%). The risk ratio was 0.97 (95% CI 0.89-1.06). CONCLUSIONS Treatment with acetylsalicylic acid did not prevent recurrent miscarriage in women with at least three consecutive miscarriages in the first trimester, of unknown reasons and in the same relationship. The fertility prognosis is very good, the live birth rate being > 80% with or without acetylsalicylic acid.
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Affiliation(s)
- Lennart Blomqvist
- Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Obstetrics and Gynecology, Södra Älvsborg Hospital, Borås, Sweden
| | - Margareta Hellgren
- Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Obstetrics and Gynecology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Annika Strandell
- Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Obstetrics and Gynecology, Sahlgrenska University Hospital, Gothenburg, Sweden
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Acute Pulmonary Embolism in a Teenage Female - A Case Report. ACTA ACUST UNITED AC 2018; 4:101-104. [PMID: 30582003 PMCID: PMC6294988 DOI: 10.2478/jccm-2018-0015] [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: 06/25/2018] [Accepted: 07/26/2018] [Indexed: 02/05/2023]
Abstract
Thrombophilia represents a tendency towards excessive blood clotting and the subsequent development of venous thromboembolism (VTE). VTE is a rare condition in children that comprises both deep venous thrombosis (DVT) and pulmonary embolism (PE). This paper reports the case of a 16-year-old girl, admitted to the Pediatrics Clinic No. 1, Tîrgu Mureș, Romania, for dyspnea, chest pain and loss of consciousness. Her personal history showed that she had had two orthopedic surgical interventions in infancy, two pregnancies, one spontaneous miscarriage and a recent caesarian section at 20 weeks of gestation for premature detachment of a normally positioned placenta associated with a deceased fetus. Laboratory tests showed increased levels of D-dimers. Angio-Computed Tomography (Angio-CT) showed multiple filling defects in both pulmonary arteries, establishing the diagnosis of PE. The laboratory tests were undertaken to assist in the diagnoses of a possible thrombophilia underlined a low level of antithrombin III. Antiphospholipid syndrome was ruled out and genetic tests revealed no specific mutation. Anticoagulant therapy was initiated with unfractionated heparin and afterwards subcutaneously low molecular heparin was prescribed for three months. Later it has been changed to oral therapy with acenocoumarol. The patient was discharged in good general status with the recommendation of life-long anticoagulation therapy. Thrombophilia is a significant risk factor for PE, and it must be ruled out in all cases of repeated miscarriage.
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Song Y, Wang HY, Qiao J, Liu P, Chi HB. Antiphospholipid Antibody Titers and Clinical Outcomes in Patients with Recurrent Miscarriage and Antiphospholipid Antibody Syndrome: A Prospective Study. Chin Med J (Engl) 2017; 130:267-272. [PMID: 28139508 PMCID: PMC5308007 DOI: 10.4103/0366-6999.198934] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND The management of patients with recurrent miscarriage (RM) and antiphospholipid antibody syndrome (APS) includes prolonged treatment with heparin and aspirin, starting from the confirmation of pregnancy and continuing until 6 weeks after birth. This study was conducted to determine the relationship between changes in antiphospholipid antibody titers and clinical outcomes. The effect of a shortened treatment regimen was also evaluated. METHODS A prospective study of 123 patients with RM and APS between March 2012 and May 2014 was conducted. Patients were pretreated with a low dose of prednisone plus aspirin before pregnancy, and heparin was added after conception. The levels of antiphospholipid antibodies and pregnancy outcomes were evaluated. RESULTS All patients were positive for anti-β2-glycoprotein 1 (anti-β2-GP1) IgM. After prepregnancy treatment with low-dose prednisone plus aspirin, 99 of 123 patients became pregnant, and 87 of those pregnancies resulted in successful live births, while 12 resulted in miscarriage, showing a success rate of 87.9%. In the live birth group, levels of anti-β2-GP1 were 56.8 ± 49.0 RU/ml before the pretreatment regimen, 32.1 ± 26.0 RU/ml after 2 months of pretreatment, and 24.1 ± 23.1 RU/ml during early pregnancy (P < 0.05). In the miscarriage group, antiphospholipid antibody titers were 52.8 ± 30.7 RU/ml before pretreatment, 38.5 ± 34.2 RU/ml after pretreatment, and 33.9 ± 24.7 RU/ml during early pregnancy; the decrease in antiphospholipid antibodies was lower in the miscarriage group than in the live birth group (P < 0.05). Of the 24 infertile patients, the average antibody titer did not decline after pretreatment (P = 0.802). CONCLUSIONS Anti-β2-GP1 IgM was the predominant form of antibody in patients with RM and APS. The decreases in antiphospholipid antibody titers correlated with better pregnancy outcomes. The shorter treatment regimen was effective and economical.
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Affiliation(s)
- Yu Song
- Reproductive Medical Center, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing 100191, China
- Key Laboratory of Assisted Reproduction Ministry of Education, Beijing 100191, China
| | - Hai-Yan Wang
- Reproductive Medical Center, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing 100191, China
- Key Laboratory of Assisted Reproduction Ministry of Education, Beijing 100191, China
| | - Jie Qiao
- Reproductive Medical Center, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing 100191, China
- Key Laboratory of Assisted Reproduction Ministry of Education, Beijing 100191, China
| | - Ping Liu
- Reproductive Medical Center, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing 100191, China
- Key Laboratory of Assisted Reproduction Ministry of Education, Beijing 100191, China
| | - Hong-Bin Chi
- Reproductive Medical Center, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
- Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing 100191, China
- Key Laboratory of Assisted Reproduction Ministry of Education, Beijing 100191, China
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