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Early J, Arrabal P. Preterm prelabor rupture of membranes after first-trimester chorionic villus sampling: A case report and review of the literature. Case Rep Womens Health 2024; 41:e00577. [PMID: 38226353 PMCID: PMC10788396 DOI: 10.1016/j.crwh.2023.e00577] [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: 11/16/2023] [Revised: 12/13/2023] [Accepted: 12/14/2023] [Indexed: 01/17/2024] Open
Abstract
Rupture of membranes in the first trimester is extremely rare. Generally at this gestational age, rupture is a complication of invasive genetic testing. Little is known about the complications or sequelae of such an occurrence and therefore the management options are limited. This article reports the case of a 35-year-old woman who had rupture of membranes after chorionic villus sampling in the first trimester; it describes her pregnancy course and eventual positive outcome. Regardless of gestational age at time of fluid loss, treatment options are limited. This article reviews the evidence regarding first-trimester rupture and the outcomes of expectant management.
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Affiliation(s)
- Jacqueline Early
- Sinai Hospital of Baltimore, United States of America
- Danbury Hospital, 24 Hospital Ave, Danbury CT 06810, United States
| | - Pedro Arrabal
- Sinai Hospital of Baltimore, United States of America
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Holmes LB, Nasri HZ. Terminal transverse limb defects with "nubbins". Birth Defects Res 2021; 113:1007-1014. [PMID: 34240582 DOI: 10.1002/bdr2.1931] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 06/08/2021] [Indexed: 01/02/2023]
Abstract
BACKGROUND A terminal transverse limb defect with absence of the forearm and hand or just the hand is an uncommon limb deformity in an otherwise healthy newborn. Most of the affected infants also have tiny digit-like nubbins on the stump of the affected limb, a finding that could represent an attempt at regeneration following vascular obstruction in early limb development. METHODS One hundred ninety-four newborn infants with a limb deficiency were identified among 289,365 births in an active malformations surveillance program at Brigham and Women's Hospital in Boston, MA from 1972 to 2012. Twenty-eight infants with terminal transverse limb defects were identified. RESULTS Twenty-four had tiny digit-like nubbins (0.5 cm in length) on the stump at one of three levels: the proximal portion of the forearm, the wrist or the forefoot. The examination of the placentas of eight affected infants showed no evidence of amnion rupture. Three of these 28 infants had associate chromosome abnormalities: trisomy 21, chromosome 11q deletion and the deletion of 22q11.2. CONCLUSION Terminal transverse limb defects reflect failure of early limb development. Awareness of this phenotype at birth, or when identified by ultrasound screening, can provide more accurate counseling than occurs with the more common misdiagnosis of "amniotic band syndrome."
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Affiliation(s)
- Lewis B Holmes
- Medical Genetics and Metabolism Unit, MassGeneral Hospital for Children, Boston, Massachusetts, USA.,Department of Pediatrics, Harvard Medical School, Boston, Massachusetts, USA
| | - Hanah Z Nasri
- Medical Genetics and Metabolism Unit, MassGeneral Hospital for Children, Boston, Massachusetts, USA
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Lee JY, Kwon JY, Na S, Choe SA, Seol HJ, Kim M, Kim MA, Park CW, Kim K, Ryu HM, Hwang HS, Shim JY. Clinical Practice Guidelines for Prenatal Aneuploidy Screening and Diagnostic Testing from Korean Society of Maternal-Fetal Medicine: (2) Invasive Diagnostic Testing for Fetal Chromosomal Abnormalities. J Korean Med Sci 2021; 36:e26. [PMID: 33496085 PMCID: PMC7834898 DOI: 10.3346/jkms.2021.36.e26] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 11/06/2020] [Indexed: 11/20/2022] Open
Abstract
The Korean Society of Maternal Fetal Medicine proposed the first Korean guideline on prenatal aneuploidy screening and diagnostic testing, in April 2019. The clinical practice guideline (CPG) was developed for Korean women using an adaptation process based on good-quality practice guidelines, previously developed in other countries, on prenatal screening and invasive diagnostic testing for fetal chromosome abnormalities. We reviewed current guidelines and developed a Korean CPG on invasive diagnostic testing for fetal chromosome abnormalities according to the adaptation process. Recommendations for selected 11 key questions are: 1) Considering the increased risk of fetal loss in invasive prenatal diagnostic testing for fetal genetic disorders, it is not recommended for all pregnant women aged over 35 years. 2) Because early amniocentesis performed before 14 weeks of pregnancy increases the risk of fetal loss and malformation, chorionic villus sampling (CVS) is recommended for pregnant women who will undergo invasive prenatal diagnostic testing for fetal genetic disorders in the first trimester of pregnancy. However, CVS before 9 weeks of pregnancy also increases the risk of fetal loss and deformity. Thus, CVS is recommended after 9 weeks of pregnancy. 3) Amniocentesis is recommended to distinguish true fetal mosaicism from confined placental mosaicism. 4) Anti-immunoglobulin should be administered within 72 hours after the invasive diagnostic testing. 5) Since there is a high risk of vertical transmission, an invasive prenatal diagnostic testing is recommended according to the clinician's discretion with consideration of the condition of the pregnant woman. 6) The use of antibiotics is not recommended before or after an invasive diagnostic testing. 7) The chromosomal microarray test as an alternative to the conventional cytogenetic test is not recommended for all pregnant women who will undergo an invasive diagnostic testing. 8) Amniocentesis before 14 weeks of gestation is not recommended because it increases the risk of fetal loss and malformation. 9) CVS before 9 weeks of gestation is not recommended because it increases the risk of fetal loss and malformation. 10) Although the risk of fetal loss associated with invasive prenatal diagnostic testing (amniocentesis and CVS) may vary based on the proficiency of the operator, the risk of fetal loss due to invasive prenatal diagnostic testing is higher in twin pregnancies than in singleton pregnancies. 11) When a monochorionic twin is identified in early pregnancy and the growth and structure of both fetuses are consistent, an invasive prenatal diagnostic testing can be performed on one fetus alone. However, an invasive prenatal diagnostic testing is recommended for each fetus in cases of pregnancy conceived via in vitro fertilization, or in cases in which the growth of both fetuses differs, or in those in which at least one fetus has a structural abnormality. The guidelines were established and approved by the Korean Academy of Medical Sciences. This guideline is revised and presented every 5 years.
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Affiliation(s)
- Ji Yeon Lee
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Korea
| | - Ji Young Kwon
- Department of Obstetrics and Gynecology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sunghun Na
- Department of Obstetrics and Gynecology, Kangwon National University Hospital, Kangwon National University School of Medicine, Chuncheon, Korea
| | - Seung Ah Choe
- Department of Preventive Medicine, Korea University College of Medicine, Seoul, Korea
| | - Hyun Joo Seol
- Department of Obstetrics and Gynecology, Kyung Hee University Hospital at Gangdong, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Minhyoung Kim
- Department of Obstetrics and Gynecology, MizMedi Hospital, Seoul, Korea
| | - Min A Kim
- Department of Obstetrics and Gynecology, Gangnam Severance Hospital, Institute of Women's Life Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Chan Wook Park
- Department of Obstetrics and Gynecology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | | | - Hyun Mee Ryu
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Korea
| | - Han Sung Hwang
- Department of Obstetrics and Gynecology, Research Institute of Medical Science, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea.
| | - Jae Yoon Shim
- Mirae & Heemang Obstetrics and Gynecology Clinic, Seoul, Korea.
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A Comprehensive Approach to Care of Women of Advanced Maternal Age. Nurs Womens Health 2019; 23:124-134. [PMID: 30825416 DOI: 10.1016/j.nwh.2019.02.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 12/19/2018] [Accepted: 01/01/2019] [Indexed: 12/19/2022]
Abstract
Advanced maternal age, historically defined as ages 35 years and older, is used to describe the later years in the female reproductive life span when rates of adverse pregnancy outcomes increase. The preconception period represents an opportunity to ensure the use of safe medications and optimize care for medical comorbidities. Routine prenatal care should be augmented with counseling on fetal aneuploidy with a detailed anatomic survey. Surveillance for preterm labor and preeclampsia is recommended. Growth assessment and antepartum testing for specific women are advised, particularly those ages 40 years and older and those with select medical problems. Despite an increased incidence of complications, most women of advanced maternal age will have normal pregnancies and will benefit from the compassionate care provided by midwives, advanced practice registered nurses (including nurse practitioners and clinical nurse specialists), and perinatal nurses.
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Ghi T, Sotiriadis A, Calda P, Da Silva Costa F, Raine-Fenning N, Alfirevic Z, McGillivray G. ISUOG Practice Guidelines: invasive procedures for prenatal diagnosis. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2016; 48:256-268. [PMID: 27485589 DOI: 10.1002/uog.15945] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 04/15/2016] [Indexed: 06/06/2023]
Affiliation(s)
- T Ghi
- Department of Obstetrics and Gynecology, University of Parma, Parma, Italy
| | - A Sotiriadis
- Department of Obstetrics and Gynecology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - P Calda
- Department of Obstetrics and Gynecology, Charles University in Prague, First Faculty of Medicine and General Teaching Hospital, Prague, Czech Republic
| | - F Da Silva Costa
- Monash Ultrasound for Women and Perinatal Services, Monash Medical Centre, Melbourne, Victoria, Australia
| | - N Raine-Fenning
- Division of Child Health, Obstetrics and Gynaecology, School of Medicine, University of Nottingham, Nottingham, UK - Nurture Fertility, The Fertility Partnership
| | - Z Alfirevic
- Department of Women's and Children's Health, University of Liverpool, Liverpool, UK
| | - G McGillivray
- Victorian Clinical Genetics Services, Mercy Hospital for Women, Murdoch Children's Research Institute, Melbourne, Australia
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Abstract
Prenatal diagnostic testing is available for a growing number of disorders. The goal of prenatal diagnosis was initially focused on the identification of Down syndrome in women aged 35 years and older, but invasive prenatal genetic techniques can now detect a far broader array of conditions. The risks of invasive procedures have also decreased over time. Advances in genomic medicine allow testing for smaller but significant chromosomal abnormalities known as copy number variants, in addition to major aneuploidies and structural rearrangements. Molecular DNA techniques can detect many single-gene conditions. In the future, it is likely that whole-exome and whole-genome sequencing will be applied to prenatal genetic testing to allow identification of yet more genetic disorders. With advances in technology, the indications for testing have likewise evolved far beyond recommendations based solely on maternal age to include a more patient-centered view of the goals of prenatal testing.
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Affiliation(s)
- Mary E Norton
- University of California, San Francisco, San Francisco, CA.
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Guía de práctica clínica: Diagnóstico prenatal de los defectos congénitos. Cribado de anomalías cromosómicas. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.diapre.2012.06.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Abstract
Abstract
BACKGROUND
Emerging antenatal interventions and care delivery to the fetus require diagnostic support, including laboratory technologies, appropriate methodologies, establishment of special algorithms, and interpretative guidelines for clinical decision-making.
CONTENT
Fetal diagnostic and therapeutic interventions vary in invasiveness and are associated with a spectrum of risks and benefits. Fetal laboratory assessments are well served by miniaturized diagnostic methods for blood analysis. Expedited turnaround times are mandatory to support invasive interventions such as cordocentesis and intrauterine transfusions. Health-associated reference intervals are required for fetal test interpretation. Fetal blood sampling by cordocentesis carries substantial risk and is therefore performed only when fetal health is impaired, or at risk. When the suspected pathology is not confirmed, however, normative fetal data can be collected. Strategies for assurance of sample integrity from cordocenteses and confirmation of fetal origin are described. After birth, definitive assessment of prenatal environmental and/or drug exposures to the fetus can be retrospectively assessed by analysis of meconium, hair, and other alternative matrices. A rapidly advancing technology for fetal assessment is the use of fetal laboratory diagnostic techniques that use cell-free fetal DNA collected from maternal plasma, and genetic analysis based on molecular counting techniques.
SUMMARY
Developmental changes in fetal biochemical and hematologic parameters in health and disease are continually delineated by analysis of our collective outcome-based experience. Noninvasive technologies for fetal evaluation are realizing the promise of lower risk yet robust diagnostics; examples include sampling and analysis of free fetal DNA from maternal blood, and analysis of fetal products accessible at maternal sites. Application of diagnostic technologies for nonmedical purposes (e.g., sex selection) underscores the importance of ethical guidelines for new technology implementation.
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Affiliation(s)
- Sharon M Geaghan
- Department of Pathology, Stanford University School of Medicine, Palo Alto, California
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Allanson E, Dickinson JE, Charles AK, Goldblatt J. Fetal oromandibular limb hypogenesis syndrome following uterine curettage in early pregnancy. ACTA ACUST UNITED AC 2011; 91:226-9. [DOI: 10.1002/bdra.20798] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2011] [Revised: 01/27/2011] [Accepted: 02/04/2011] [Indexed: 11/12/2022]
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Philip-Sarles N. Malformations congénitales de la main et génétique. ACTA ACUST UNITED AC 2008; 27 Suppl 1:S7-20. [DOI: 10.1016/j.main.2008.07.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Golden CM, Ryan LM, Holmes LB. Chorionic villus sampling: A distinctive teratogenic effect on fingers? ACTA ACUST UNITED AC 2003; 67:557-62. [PMID: 14632304 DOI: 10.1002/bdra.10078] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
BACKGROUND An increased frequency of major limb malformations, especially terminal transverse limb defects, have been described in several studies of birth defects in children who had been exposed to the prenatal diagnosis procedure known as chorionic villus sampling (CVS). Vascular disruption has been proposed as the mechanism behind the fetal effect. We postulate that this mechanism is more likely to affect one or two middle fingers, rather than all five fingers. A recent report of the frequency of defects in any or all fingers in an unexposed control population enabled us to assess whether CVS is associated with an increased frequency of defects involving one or two fingers, as well as terminal transverse limb defects. METHODS The frequency of limb-reduction defects affecting one or more fingers or toes, including those with constriction rings and tissue loss, in published studies of 20,236 children who had been exposed to CVS was compared with the frequency in 161,252 newborn infants who had not been exposed to CVS. Children with recognized genetic disorders were excluded. RESULTS Several aspects of the limb deficiencies were more common in the CVS-exposed infants than in unexposed controls. The former were more likely to have: 1) any type of limb deficiency involving one or more fingers (p < .001); 2) absence/ hypoplasia of two fingers (p < .001); and 3) absence/hypoplasia of all five fingers (p = .015). The absence of the distal portion of the third finger was a distinctive type of limb-reduction defect in CVS-exposed infants. CONCLUSIONS The occurrence of deficiencies in one or two fingers, including those designated as "amniotic band deformities," are as common as terminal transverse limb defects in CVS-exposed infants, and both are much more common than in unexposed infants. The absence of the distal portion of the third finger, with tapering and stiff joints, appears to be a distinctive effect of exposure to CVS.
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Affiliation(s)
- Caroline M Golden
- Genetics and Teratology Unit, MassGeneral Hospital for Children, Department of Pediatrics, Harvard Medical School, Boston, Massachusetts 02114-2696, USA
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Abstract
The value of all noninvasive prenatal tests must be viewed with the perspective of the consequences of invasive testing. Regarding second trimester noninvasive testing, biochemical screening is more accurate in establishing risk than maternal age alone. One or more major ultrasound abnormalities, nuchal thickening, or a shortened humerus should raise concern for Down syndrome regardless of the patient's a priori risk based on age or biochemical markers. Isolated minor ultrasound markers should not be used in calculating risk in low-risk patients regarding Down syndrome unless the biochemical profile already places the patient at risk or in a borderline risk zone. If the ultrasound finding is hyperechoic bowel, problems other than aneuploidy may be the cause, including cystic fibrosis, infection, or hemorrhage, and these problems must be considered if hyperechoic bowel is an isolated finding. Improved risk adjustment seems to be applicable to a priori high-risk patients with completely normal sonograms. Genetic sonograms with specific risk adjustment schemata may be used to adjust a priori risk (either maternal age or biochemical screening results) at centers in which this has proven to be accurate, but whether this is statistically sound remains to be determined. The goal of second trimester ultrasound screening is to identify at-risk fetuses better and offer invasive testing to a more select group of patients. As the value of first trimester screening becomes more evident and practical, and if the risk of chorionic villus sampling becomes an acceptable norm, the patient population that reaches the second trimester of pregnancy will be select. Therefore, we can anticipate that second trimester screening and invasive testing may be needed only in a minority of cases, and the practice standards of prenatal testing and sonography (including minor ultrasound markers) will change entirely.
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MESH Headings
- Amniocentesis
- Aneuploidy
- Chorionic Villi Sampling
- Chromosome Disorders/blood
- Chromosome Disorders/diagnosis
- Chromosome Disorders/diagnostic imaging
- Chromosomes, Human, Pair 13/genetics
- Chromosomes, Human, Pair 18/genetics
- Chromosomes, Human, Pair 21/genetics
- Cordocentesis
- Female
- Humans
- Pregnancy
- Pregnancy Trimester, First/blood
- Pregnancy Trimester, First/genetics
- Pregnancy Trimester, Second/blood
- Pregnancy Trimester, Second/genetics
- Trisomy/diagnosis
- Ultrasonography, Prenatal
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Affiliation(s)
- Nancy E Budorick
- Department of Radiology, Columbia University, Columbia Presbyterian Medical Center, Milstein Hospital Building 4-156, 177 Fort Washington Avenue, New York, NY 10032, USA.
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Shanske AL, Pande S, Aref K, Vega-Rich C, Brion L, Reznik S, Timor-Tritsch IE. Omphalocele-exstrophy-imperforate anus-spinal defects (OEIS) in triplet pregnancy after IVF and CVS. BIRTH DEFECTS RESEARCH. PART A, CLINICAL AND MOLECULAR TERATOLOGY 2003; 67:467-71. [PMID: 12962293 DOI: 10.1002/bdra.10058] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Omphalocele-exstrophy-imperforate anus-spinal defects (OEIS) complex is a rare sporadic condition. CASE We identified an infant with major malformations resembling OEIS. He was the product of a 30-week triplet pregnancy conceived by in vitro fertilization (IVF) and evaluated by chorionic villi sampling (CVS). In this article, we review the possible pathogenetic mechanisms in this case, including IVF, multiple gestation, trauma to the uterus or uterine vessels following CVS, and placenta accreta. CONCLUSIONS We conclude that the cumulative effects of all or some of these factors may have resulted in uteroplacental insufficiency adequate to produce this phenotype. This case provides additional evidence for the uterine vascular pathogenesis of OEIS complex in humans.
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MESH Headings
- Abnormalities, Multiple/embryology
- Abnormalities, Multiple/etiology
- Abnormalities, Multiple/pathology
- Anus, Imperforate/embryology
- Anus, Imperforate/etiology
- Anus, Imperforate/pathology
- Bladder Exstrophy/embryology
- Bladder Exstrophy/etiology
- Bladder Exstrophy/pathology
- Chorionic Villi Sampling
- Female
- Fertilization in Vitro
- Hernia, Umbilical/embryology
- Hernia, Umbilical/etiology
- Hernia, Umbilical/pathology
- Humans
- Infant, Newborn
- Male
- Maternal Age
- Pregnancy
- Pregnancy, High-Risk
- Spinal Dysraphism/embryology
- Spinal Dysraphism/etiology
- Spinal Dysraphism/pathology
- Triplets
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Affiliation(s)
- Alan L Shanske
- Center for Congenital Disorders, Children's Hospital at Montefiore, Albert Einstein College of Medicine, Bronx, New York 10467, USA.
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Hwang SJ, Beaty TH, McIntosh I, Hefferon T, Panny SR. Association between homeobox-containing geneMSX1 and the occurrence of limb deficiency. ACTA ACUST UNITED AC 1998. [DOI: 10.1002/(sici)1096-8628(19980203)75:4<419::aid-ajmg14>3.0.co;2-r] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Chang HH, Tse Y, Kaufman MH. Analysis of interdigital spaces during mouse limb development at intervals following amniotic sac puncture. J Anat 1998; 192 ( Pt 1):59-72. [PMID: 9568561 PMCID: PMC1467739 DOI: 10.1046/j.1469-7580.1998.19210059.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
A spectrum of limb abnormalities ranging from adactyly, syndactyly, acrosyndactyly to nail hypoplasia was encountered in mouse embryos subjected to amniotic sac puncture at the corresponding gestational stage when human chorionic villus sampling (cvs) would normally be performed clinically. Previous skeletal studies revealed that, apart from the occasional incidence of fusion of 2 distal phalanges, syndactyly usually only affected the soft tissues within the interdigital spaces. A similar situation was also observed in cases of adactyly; while the skeletal elements of the digits were present, the soft tissues in the interdigital spaces failed to separate. A transient period of bradycardia is induced, possibly secondary to compression of the embryo by the extraembryonic membranes and uterine muscles following amniotic sac puncture. These factors, we believe, produce temporary hypoxia/ischaemia of the distal extremities, and may lead to the modification of the interdigital mesenchymal tissues within the autopods. In order to investigate the mechanism(s) underlying soft tissue syndactyly, limbs recovered at 0.5, 4, 8, 12, 24, or 36 h following amniotic sac puncture (ASP) were examined histologically. Vascular disruption in the form of localised areas of haemorrhage, vascular dilatation and congestion and the presence of fluid-filled cavities occurred in relation to the marginal vein and vascular plexus in the interdigital spaces. It is hypothesised that this interfered with the normal equilibrium of the preset programs of mitosis/cell death and apoptosis within the mesenchymal cells of the interdigital spaces. Apoptosis in these areas was inhibited in the majority of the experimental limbs analysed 4 h after ASP. Instead of undergoing necrosis/apoptosis, increased mitotic activity was usually observed from 8 h following ASP at the sites where apoptosis would normally be expected to be seen. The aberrant fate of the interdigital mesenchyme following ASP and the underlying mechanism(s) involved are discussed, as is the critical importance of an adequate vascular supply to the interdigital spaces during the morphogenesis of the autopod. We believe that this report contributes to understanding the mechanism(s) which lead to syndactyly following ASP, and the limb defects occasionally seen following cvs when this is undertaken during early gestation.
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Affiliation(s)
- H H Chang
- Department of Anatomy, University Medical School, Edinburgh, UK
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Luijsterburg AJ, van der Zee DC, Gaillard JL, Los FJ, Brandenburg H, van Haeringen A, Vermeij-Keers C. Chorionic villus sampling and end-artery disruption of the fetus. Prenat Diagn 1997; 17:71-6. [PMID: 9021831 DOI: 10.1002/(sici)1097-0223(199701)17:1<71::aid-pd21>3.0.co;2-j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A fetus with transverse limb reduction defects and jejunal atresia after exposure to chorionic villus sampling (CVS) at 9 weeks of amenorrhoea is described. A theory involving disruption of end-arteries due to the CVS procedure is suggested.
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Affiliation(s)
- A J Luijsterburg
- Department of Anatomy, University Hospital Rotterdam, Erasmus University Rotterdam, The Netherlands
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Foster UG. Academicians are more likely to share each other's toothbrush than each other's nomenclature [Cohen, 1982]. AMERICAN JOURNAL OF MEDICAL GENETICS 1996; 66:471-4. [PMID: 8989471 DOI: 10.1002/(sici)1096-8628(19961230)66:4<471::aid-ajmg18>3.0.co;2-r] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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