1
|
Litwinska E, Litwinska M, Czuba B, Gach A, Kwiatkowski S, Kosinski P, Kaczmarek P, Wielgos M. Amniocentesis in Twin Pregnancies: Risk Factors of Fetal Loss. J Clin Med 2022; 11:jcm11071937. [PMID: 35407545 PMCID: PMC9000006 DOI: 10.3390/jcm11071937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 03/11/2022] [Accepted: 03/28/2022] [Indexed: 12/10/2022] Open
Abstract
This study aims to determine if second trimester amniocentesis in twin pregnancies provides a significant independent contribution in the prediction of miscarriage or fetal loss at any stage of pregnancy. This was a retrospective cohort study of women with twin gestations booked for routine prenatal care in four fetal medicine units in Poland in the years 2010-2020. The study population included: (1) twin pregnancies that underwent amniocentesis at 16-20 weeks' gestation; (2) twin pregnancies that did not require any further testing and were followed-up routinely. Univariable and multivariable regression analysis was used to define which maternal and pregnancy characteristics provided a significant independent contribution in the prediction of miscarriage and fetal loss at any stage of pregnancy. In the study period, 2645 twin pregnancies were eligible for analysis. There were 144 cases of miscarriage defined as fetal loss of one or both twins before 24 weeks and 40 cases of intrauterine death of one or both twins after 24 weeks. A total number of 162 twin pregnancies underwent amniocentesis at 16-20 weeks' gestation. The rate of miscarriage before 24 weeks and the rate of fetal loss at any stage of pregnancy in the group that underwent amniocentesis was 10.49% and 13.58%, respectively, compared to 5.11% and 6.52% that did not undergo amniocentesis. Multivariable regression analysis showed that factors providing a significant independent contribution in the prediction of miscarriage and fetal loss at any stage of pregnancy were monochorionicity (MC), large intertwin discordance in crown-rump length (CRL), low Pregnancy Related Plasma Protein (PAPP-A) MoM and nuchal translucency (NT) above 95th centile. Amniocentesis in twin pregnancies does not provide a significant contribution in the prediction of miscarriage or fetal loss at any stage of pregnancy.
Collapse
Affiliation(s)
- Ewelina Litwinska
- 1st Department of Obstetrics and Gynecology, Medical University of Warsaw, 03-242 Warsaw, Poland; (M.L.); (M.W.)
- Correspondence: ; Tel.: +48-601-636-778
| | - Magdalena Litwinska
- 1st Department of Obstetrics and Gynecology, Medical University of Warsaw, 03-242 Warsaw, Poland; (M.L.); (M.W.)
| | - Bartosz Czuba
- Women’s Health, Faculty of Health Sciences in Katowice, Medical University of Silesia, 40-055 Katowice, Poland;
| | - Agnieszka Gach
- Department of Genetics, Polish Mother’s Memorial Hospital Research Institute, 93-338 Lodz, Poland;
| | - Sebastian Kwiatkowski
- Clinical Department of Obstetrics and Gynecology, Pomeranian Medical University, 71-455 Szczecin, Poland;
| | - Przemyslaw Kosinski
- Department of Obstetrics, Perinatology and Gynecology, Medical University of Warsaw, 03-242 Warsaw, Poland;
| | - Piotr Kaczmarek
- Department of Gynecology, Fertility and Fetal Therapy, Polish Mother’s Memorial Hospital Research Institute, 93-338 Lodz, Poland;
| | - Miroslaw Wielgos
- 1st Department of Obstetrics and Gynecology, Medical University of Warsaw, 03-242 Warsaw, Poland; (M.L.); (M.W.)
| |
Collapse
|
2
|
Pregnancy Loss After Amniocentesis with Double-Needle Insertions in Twin Pregnancies. Twin Res Hum Genet 2022; 25:50-55. [DOI: 10.1017/thg.2022.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Abstract
The aim of this study was to determine the pregnancy loss rate of amniocentesis with double-needle insertions in twin pregnancies. This was a retrospective study of twin pregnancies who underwent amniocentesis with double-needle insertion between 2010 and 2019 at a single center. The pregnancy loss rates were recorded as single or double fetal loss before 24 weeks’ gestation and within 4 weeks after the procedure. Risk factors for pregnancy loss after amniocentesis were also assessed. A total of 678 twin pregnancies with amniocentesis were finally included. The pregnancy loss rates before 24 weeks’ gestation and within 4 weeks after the procedure were 0.9% and 1.9%, respectively. Only one fetal loss was presumed to be a direct result of the procedure. All other cases were complicated by structural or chromosomal anomalies. Twin pregnancies with abnormal ultrasound findings had a significantly higher rate of pregnancy loss with a relative risk of 4.81 (95% CI [1.03, 22.2]). Our study showed a low pregnancy loss rate after amniocentesis in twin pregnancies with double-needle insertions technique of sampling, which can help decision making in prenatal screening and diagnosis for twin pregnancies.
Collapse
|
3
|
Evaluation of a Microhaplotype-Based Noninvasive Prenatal Test in Twin Gestations: Determination of Paternity, Zygosity, and Fetal Fraction. Genes (Basel) 2020; 12:genes12010026. [PMID: 33375453 PMCID: PMC7823673 DOI: 10.3390/genes12010026] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 12/23/2020] [Accepted: 12/24/2020] [Indexed: 12/17/2022] Open
Abstract
As a novel type of genetic marker, the microhaplotype has shown promising potential in forensic research. In the present study, we analyzed maternal plasma cell-free DNA (cfDNA) samples from twin pregnancies to validate microhaplotype-based noninvasive prenatal testing (NIPT) for paternity, zygosity, and fetal fraction (FF). Paternity was determined with the combined use of the relMix package, zygosity was evaluated by examining the presence of informative loci with two fetal genome complements, and FF was assessed through fetal allele ratios. Paternity was determined in 19 twin cases, among which 13 cases were considered dizygotic (DZ) twins based on the presence of 3~10 informative loci and the remaining 6 cases were considered monozygotic (MZ) twins because no informative locus was observed. With the fetal genomic genotypes as a reference, the accuracy of paternity and zygosity determination were confirmed by standard short tandem repeat (STR) analysis. Moreover, the lower FF, higher FF, and combined FF in each DZ plasma sample were closely related to the estimated value. This present preliminary study proposes that microhaplotype-based NIPT is applicable for paternity, zygosity, and FF determination in twin pregnancies, which are expected to be advantageous for both forensic and clinical settings.
Collapse
|
4
|
Di Mascio D, Khalil A, Rizzo G, Buca D, Liberati M, Martellucci CA, Flacco ME, Manzoli L, D'Antonio F. Risk of fetal loss following amniocentesis or chorionic villus sampling in twin pregnancy: systematic review and meta-analysis. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2020; 56:647-655. [PMID: 32632979 DOI: 10.1002/uog.22143] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 06/23/2020] [Accepted: 06/24/2020] [Indexed: 02/05/2023]
Abstract
OBJECTIVE To assess the rate of fetal loss following amniocentesis or chorionic villus sampling (CVS) in twin pregnancy. METHODS MEDLINE, EMBASE and Cochrane databases were searched for studies reporting procedure-related complications following amniocentesis or CVS in twin pregnancy. The primary outcome was the rate of procedure-related fetal loss. The secondary outcomes were fetal loss occurring before 24 weeks of gestation and fetal loss occurring within 4 weeks after the procedure. Head-to-head meta-analyses were used to compare directly each outcome, between women undergoing amniocentesis and those not undergoing amniocentesis and between women undergoing CVS and those not undergoing CVS, and to compute pooled risk differences (RD) between women exposed and those not exposed to each invasive procedure. Additionally, meta-analyses of proportions were used to estimate the pooled rates of each of the three outcomes in women undergoing amniocentesis or CVS and in controls. RESULTS Sixteen studies (3419 twin pregnancies undergoing and 2517 not undergoing an invasive procedure) were included. Head-to-head meta-analyses comparing directly twin pregnancies undergoing and those not undergoing amniocentesis showed a higher risk for overall fetal loss in those undergoing amniocentesis (odds ratio (OR), 1.46 (P = 0.04); RD, 0.013 (P = 0.04)), while there was no difference in the risk of either fetal loss before 24 weeks of gestation (OR, 1.59 (P = 0.06); RD, 0.010 (P = 0.11)) or fetal loss within 4 weeks after the procedure (OR, 1.38 (P = 0.3); RD, 0.003 (P = 0.8)). Overall, the pooled rate of fetal loss was 2.4% (95% CI, 1.4-3.6%) in twin pregnancies undergoing amniocentesis compared with 2.4% (95% CI, 0.9-4.6%) in those not undergoing amniocentesis. Head-to-head meta-analyses directly comparing twin pregnancies undergoing and those not undergoing CVS showed no significant difference in either overall fetal loss (OR, 1.61 (P = 0.5); RD, 0.003 (P = 0.8)) or fetal loss before 24 weeks of gestation (OR, 1.61 (P = 0.5); RD, 0.003 (P = 0.8)). Overall, the pooled rate of fetal loss was 2.0% (95% CI, 0.0-6.5%) in twin pregnancies undergoing CVS compared with 1.8% (95% CI, 0.3-4.2%) in those not undergoing CVS. CONCLUSION The risk of fetal loss following amniocentesis and CVS in twins is lower than reported previously and the rate of fetal loss before 24 weeks of gestation, or within 4 weeks after the procedure, did not differ from the background risk in twin pregnancy not undergoing invasive prenatal testing. These data can guide prenatal counseling for twin pregnancies undergoing invasive procedures. © 2020 International Society of Ultrasound in Obstetrics and Gynecology.
Collapse
Affiliation(s)
- D Di Mascio
- Department of Maternal and Child Health and Urological Sciences, Sapienza University of Rome, Rome, Italy
| | - A Khalil
- Fetal Medicine Unit, St George's University Hospitals NHS Foundation Trust, University of London, London, UK
- Vascular Biology Research Centre, Molecular and Clinical Sciences Research Institute, St George's University of London, London, UK
| | - G Rizzo
- Division of Maternal and Fetal Medicine, Ospedale Cristo Re, University of Rome Tor Vergata, Rome, Italy
- Department of Obstetrics and Gynecology, The First I.M. Sechenov Moscow State Medical University, Moscow, Russia
| | - D Buca
- Center for Fetal Care and High-Risk Pregnancy, Department of Obstetrics and Gynecology, University of Chieti, Chieti, Italy
| | - M Liberati
- Center for Fetal Care and High-Risk Pregnancy, Department of Obstetrics and Gynecology, University of Chieti, Chieti, Italy
| | - C A Martellucci
- Department of Biomedical Sciences and Public Health, University of the Marche Region, Ancona, Italy
| | - M E Flacco
- Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - L Manzoli
- Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - F D'Antonio
- Center for Fetal Care and High-Risk Pregnancy, Department of Obstetrics and Gynecology, University of Chieti, Chieti, Italy
| |
Collapse
|
5
|
Xie Y, Qu N, Lin S, Jiang H, Zhang Y, Zhang X, Liang H, Chen F, Ou X. Noninvasive prenatal paternity testing by maternal plasma DNA sequencing in twin pregnancies. Electrophoresis 2020; 41:1095-1102. [PMID: 32249439 DOI: 10.1002/elps.202000036] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 03/26/2020] [Indexed: 11/10/2022]
Abstract
SNPs, combined with massively parallel sequencing technology, have proven applicability in noninvasive prenatal paternity testing (NIPPT) for singleton pregnancies in our previous research, using circulating cell-free DNA in maternal plasma. However, the feasibility of NIPPT in twin pregnancies has remained uncertain. As a pilot study, we developed a practical method to noninvasively determine the paternity of twin pregnancies by maternal plasma DNA sequencing based on a massively parallel sequencing platform. Blood samples were collected from 15 pregnant women (twin pregnancies at 9-18 weeks of gestation). Parental DNA and maternal plasma cell-free DNA were analyzed with custom-designed probes covering 5226 polymorphic SNP loci. A mathematical model for data interpretation was established, including the zygosity determination and paternity index calculations. Each plasma sample was independently tested against the alleged father and 90 unrelated males. As a result, the zygosity in each twin case was correctly determined, prior to paternity analysis. Further, the correct biological father was successfully identified, and the paternity of all 90 unrelated males was excluded in each case. Our study demonstrates that NIPPT can be performed for twin pregnancies. This finding may contribute to development in NIPPT and diagnosis of certain genetic diseases.
Collapse
Affiliation(s)
- Yifan Xie
- BGI Education Center, University of Chinese Academy of Sciences, Shenzhen, P. R. China.,MGI Tech Co., Ltd., Shenzhen, P. R. China
| | - Ning Qu
- Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, P. R. China.,Guangdong Province Translational Forensic Medicine Engineering Technology Research Center, Sun Yat-sen University, Guangzhou, P. R. China
| | - Shaobin Lin
- Department of Obstetrics and Gynecology, Fetal Medicine Center, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, P. R. China
| | | | | | | | - Hao Liang
- Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, P. R. China.,Guangdong Province Translational Forensic Medicine Engineering Technology Research Center, Sun Yat-sen University, Guangzhou, P. R. China
| | - Fang Chen
- MGI Tech Co., Ltd., Shenzhen, P. R. China.,Laboratory of Genomics and Molecular Biomedicine, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Xueling Ou
- Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, P. R. China.,Guangdong Province Translational Forensic Medicine Engineering Technology Research Center, Sun Yat-sen University, Guangzhou, P. R. China
| |
Collapse
|
6
|
Kim MS, Moon MJ, Kang S, Jung SH, Chang SW, Ki HJ, Kim B, Ahn E. Obstetrical Outcomes of Amniocentesis or Chorionic Villus Sampling in Dichorionic Twin Pregnancies. J Korean Med Sci 2019; 34:e142. [PMID: 31074255 PMCID: PMC6509361 DOI: 10.3346/jkms.2019.34.e142] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 04/24/2019] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Under certain situations, women with twin pregnancies may be counseled to undergo invasive prenatal diagnostic testing. Chorionic villus sampling and amniocentesis are the two generally performed invasive prenatal diagnostic tests. Studies comparing procedure-related fetal loss between first-trimester chorionic villus sampling and second-trimester amniocentesis in twin pregnancies are limited. This study aimed to evaluate the procedure-related fetal loss and the obstetrical outcomes of these two procedures, chorionic villus sampling and amniocentesis in twin pregnancies. METHODS The data from dichorionic-diamniotic twin pregnancies on which first-trimester chorionic villus sampling (n = 54) or second-trimester amniocentesis (n = 170) was performed between December 2006 and January 2017 in a single center were retrospectively analyzed. The procedure-related fetal loss was classified as loss of one or all fetuses within 4 weeks of procedure, and overall fetal loss was classified as loss of one or all fetuses during the gestation. The groups were compared with respect to the procedure-related and obstetrical outcomes. RESULTS The difference in proportion of procedure-related fetal loss rate (1.9% for chorionic villus sampling vs. 1.8% for amniocentesis; P = 1.000) and the overall fetal loss rate (7.4% for chorionic villus sampling vs. 4.7% for amniocentesis; P = 0.489) between the two groups was not significant. The mean gestational ages at delivery were not statistically significant. CONCLUSION Both the overall fetal loss rate and the procedure-related fetal loss rate of chorionic villus sampling and amniocentesis in dichorionic twin pregnancies had no statistical significance. Both procedures can be safely used individually.
Collapse
Affiliation(s)
- Mi Sun Kim
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, Seongnam, Korea
| | - Myoung Jin Moon
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, Seongnam, Korea
| | - Sukho Kang
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, Seongnam, Korea
| | - Sang Hee Jung
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, Seongnam, Korea
| | - Sung Woon Chang
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, Seongnam, Korea
| | - Hyo Jin Ki
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, Seongnam, Korea
| | - Bohye Kim
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, Seongnam, Korea
| | - Eunhee Ahn
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, Seongnam, Korea.
| |
Collapse
|
7
|
Tara F, Lotfalizadeh M, Moeindarbari S. The effect of diagnostic amniocentesis and its complications on early spontaneous abortion. Electron Physician 2016; 8:2787-2792. [PMID: 27757190 PMCID: PMC5053461 DOI: 10.19082/2787] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Accepted: 07/23/2016] [Indexed: 11/29/2022] Open
Abstract
Introduction The occurrence of early abortion after amniocentesis is a serious problem in the fields of obstetrics and gynecology, and it is always important to discover the factors influencing this phenomenon. The incidence rate has been reported in different studies, even up to about 10%. So far, no studies have been conducted in Iran on the effect of amniocentesis and related complications on early abortion. The aim of this study was to determine the effects of amniocentesis and relevant complications on the incidence of early abortion in pregnant women undergoing amniocentesis. Methods This cohort study was conducted between March 2014 and March 2016 on pregnant candidates for amniocentesis referred to the perinatology clinic at Ommol-Banin Hospital, Mashhad, Iran. Amniocentesis was performed for all patients with about 20–30cc in the same manner by a perinatologist. Maternal blood group, causes of amniocentesis, amniotic fluid profile (liquid color), status of inserting the needle through the placenta during amniocentesis, amniotic fluid leakage, and bleeding after amniocentesis were considered as exposure factors, and spontaneous abortion after amniocentesis until the end of the 20th week of pregnancy was taken as a consequence. Data were analyzed using IBM-SPSS version 20 via t-test and chi-square. Relative risk (RR) was calculated to determine the causal relationship of exposure with the consequences of spontaneous abortion during the first week after amniocentesis. Results This study was performed on 1000 pregnant women with mean age of 33.4±6.0 years (minimum 16, maximum 48 years). The incidence rate of spontaneous abortion after amniocentesis was obtained 1%. There was no association among causes of amniocentesis, maternal blood group, maternal underlying diseases, history of diseases associated with pregnancy, and spontaneous abortion. Based on the chi-square test, a significant statistical relationship was found between amniotic fluid leakage and spontaneous abortion (RR=15.37, p=0.001). There was also a significant statistical relationship between bleeding after amniocentesis and spontaneous abortion; so that in patients with more bleeding, spontaneous abortion was more prevalent (RR=6.83, P=0.001). Conclusion According to the results, it seems that amniotic fluid leakage and bleeding after amniocentesis should be considered as two serious complications of amniocentesis, which can cause the incidence of spontaneous abortion in pregnant patients undergoing amniocentesis.
Collapse
Affiliation(s)
- Fatemeh Tara
- M.D., Associate Professor, Department of Obstetrics & Gynecology, School of Medicine, Mashhad University of Medical Sciences, Iran
| | - Marzieh Lotfalizadeh
- M.D., Associate Professor, Department of Obstetrics & Gynecology, School of Medicine, Mashhad University of Medical Sciences, Iran
| | - Somayeh Moeindarbari
- M.D., Resident of Obstetrics & Gynecology, Women's Health Research Center, Department of Obstetrics & Gynecology, School of Medicine, Mashhad University of Medical Sciences, Iran
| |
Collapse
|
8
|
Zheng J, Xu C, Guo J, Wei Y, Ge H, Li X, Zhang C, Jiang H, Pan L, Tang W, Xie W, Zhang H, Zhao Y, Jiang F, Chen S, Wang W, Xu X, Chen F, Huang H, Jiang H. Effective noninvasive zygosity determination by maternal plasma target region sequencing. PLoS One 2013; 8:e65050. [PMID: 23762285 PMCID: PMC3677919 DOI: 10.1371/journal.pone.0065050] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Accepted: 04/19/2013] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Currently very few noninvasive molecular genetic approaches are available to determine zygosity for twin pregnancies in clinical laboratories. This study aimed to develop a novel method to determine zygosity by using maternal plasma target region sequencing. METHODS We constructed a statistic model to calculate the possibility of each zygosity type using likelihood ratios ( Li ) and empirical dynamic thresholds targeting at 4,524 single nucleotide polymorphisms (SNPs) loci on 22 autosomes. Then two dizygotic (DZ) twin pregnancies,two monozygotic (MZ) twin pregnancies and two singletons were recruited to evaluate the performance of our novel method. Finally we estimated the sensitivity and specificity of the model in silico under different cell-free fetal DNA (cff-DNA) concentration and sequence depth. RESULTS/CONCLUSIONS We obtained 8.90 Gbp sequencing data on average for six clinical samples. Two samples were classified as DZ with L values of 1.891 and 1.554, higher than the dynamic DZ cut-off values of 1.162 and 1.172, respectively. Another two samples were judged as MZ with 0.763 and 0.784 of L values, lower than the MZ cut-off values of 0.903 and 0.918. And the rest two singleton samples were regarded as MZ twins, with L values of 0.639 and 0.757, lower than the MZ cut-off values of 0.921 and 0.799. In silico, the estimated sensitivity of our noninvasive zygosity determination was 99.90% under 10% total cff-DNA concentration with 2 Gbp sequence data. As the cff-DNA concentration increased to 15%, the specificity was as high as 97% with 3.50 Gbp sequence data, much higher than 80% with 10% cff-DNA concentration. SIGNIFICANCE This study presents the feasibility to noninvasively determine zygosity of twin pregnancy using target region sequencing, and illustrates the sensitivity and specificity under various detecting condition. Our method can act as an alternative approach for zygosity determination of twin pregnancies in clinical practice.
Collapse
Affiliation(s)
- Jing Zheng
- Science and Technology, BGI-Shenzhen, Shenzhen, China
- Shenzhen Municipal Key Laboratory of Genome Sciences, Shenzhen, China
| | - Chenming Xu
- Key Laboratory of Reproductive Genetics, Zhejiang University, Hangzhou, China
| | - Jing Guo
- Science and Technology, BGI-Shenzhen, Shenzhen, China
- Department of Biomedical Engineering, Southeast University, Nanjing, China
| | - Yuan Wei
- Department of Gynaecology and Obstetrics, Peking University Third Hospital, Beijing, China
| | - Huijuan Ge
- Science and Technology, BGI-Shenzhen, Shenzhen, China
- Shenzhen Municipal Key Laboratory of Birth Defects Screening and Engineering, Shenzhen, China
| | - Xuchao Li
- Science and Technology, BGI-Shenzhen, Shenzhen, China
| | - Chunlei Zhang
- Science and Technology, BGI-Shenzhen, Shenzhen, China
| | - Haojun Jiang
- Science and Technology, BGI-Shenzhen, Shenzhen, China
- Department of Biomedical Engineering, Southeast University, Nanjing, China
| | - Ling Pan
- Key Laboratory of Reproductive Genetics, Zhejiang University, Hangzhou, China
| | - Weiping Tang
- East China Marketing Department, BGI-Shenzhen, Shenzhen, China
| | - Weiwei Xie
- Science and Technology, BGI-Shenzhen, Shenzhen, China
| | | | - Yangyu Zhao
- Department of Gynaecology and Obstetrics, Peking University Third Hospital, Beijing, China
| | - Fuman Jiang
- Shenzhen Clinical Laboratory, Shenzhen, China
| | - Shengpei Chen
- Science and Technology, BGI-Shenzhen, Shenzhen, China
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China
| | - Wei Wang
- Science and Technology, BGI-Shenzhen, Shenzhen, China
- East China Marketing Department, BGI-Shenzhen, Shenzhen, China
| | - Xun Xu
- Science and Technology, BGI-Shenzhen, Shenzhen, China
| | - Fang Chen
- Science and Technology, BGI-Shenzhen, Shenzhen, China
- Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Hefeng Huang
- Key Laboratory of Reproductive Genetics, Zhejiang University, Hangzhou, China
| | - Hui Jiang
- Science and Technology, BGI-Shenzhen, Shenzhen, China
- Department of Biology, University of Copenhagen, Copenhagen, Denmark
- Guangdong Provincial Key Laboratory of Human Diseases Genome, Guangdong, China
| |
Collapse
|
9
|
Lenis-Cordoba N, Sánchez MÁ, Bello-Muñoz JC, Sagalá-Martinez J, Campos N, Carreras-Moratonas E, Cabero-Roura L. Amniocentesis and the risk of second trimester fetal loss in twin pregnancies: results from a prospective observational study. J Matern Fetal Neonatal Med 2013; 26:1537-41. [PMID: 23544929 DOI: 10.3109/14767058.2013.791271] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
AIM To compare the rate of pregnancy loss between twin pregnancies undergoing a genetic amniocentesis (AC) and a control group with similar characteristics. METHODS Prospective observational study on a population of twin pregnancies referred to our prenatal diagnosis unit for screening from 1990 to 2010. Those women referred for an AC were compared with those without indication for the procedure. Primary outcomes were pregnancy loss within the 4 weeks after procedure and pregnancy loss before 24 weeks. Secondary outcome included neonatal morbidity, gestational age at delivery and birth weight. results: Maternal characteristics were similar for both groups, except for maternal age. There was neither difference in the pregnancy loss rate within 4 weeks (2.7 versus 2.6%) nor in the loss rate before 24 weeks of gestation (1.2 versus 1.1%). Gestational age at birth was 36 weeks for both groups. Chorionicity and gestational age at procedure played no role in modifying the risk. CONCLUSION Based on our results, there is no difference in the pregnancy loss rate in twin gestations, regardless of chorionicity or gestational age at procedure, either within 4 weeks after the procedure or before 24 weeks, in patients who undergo AC when compared with patients who do not.
Collapse
|