Noninvasive Prenatal Testing

Book Description :

Since its introduction in 2012, cell-free (cf) DNA based Non-Invasive Prenatal Testing (NIPT) has been employed to test for fetal chromosome abnormalities, and gene mutations that lead to a variety of genetic conditions, by millions of pregnant women, in more than 90 countries worldwide. With Noninvasive Prenatal Testing (NIPT): Applied Genomics in Prenatal Screening and Diagnosis, Dr Lieve Page-Christiaens and Dr Hanns-Georg Klein have compiled the first authoritative volume on cfDNA NIPT methods and their clinical implementation. Provides a thorough, practical examination of the history of NIPT, NIPT laboratory techniques and bioinformatics, NIPT screening and diagnostics for a wide range of disorders and birth defects Presents leading, international experts who discuss the application of NIPT in early screening for common aneuploidies, fetal chromosome anomalies, autosomal trisomies, fetal blood group typing, and maternal constitutional and acquired copy number variants Includes full color imagery that enhances concept illustration, along with detailed descriptions of the benefits (and limitations) of NIPT Offers clinicians, researchers, genetic counselors and reproductive specialists of all kinds the required background information, methodologies and essential patient counseling techniques

Book Description :

This important new publication summarises the recent exciting advances in screening for Down's syndrome. It addresses important clinical questions such as: risk assessment, who to screen, when to screen, which techniques to use, and the organisation of screening programmes nationally and internationally. An international and authoritative team of authors has been invited to assess the latest developments in this rapidly advancing area. The volume provides a critical and much needed evaluation of the potential and limitations of new and established techniques for screening for Down's syndrome. It will serve as an essential source of information for all those involved in pre-natal diagnosis and the provision of obstetric care.

Book Description :

Human Reproductive and Prenatal Genetics presents the latest material from a detailed molecular, cellular and translational perspective. Considering its timeliness and potential international impact, this all-inclusive and authoritative work is ideal for researchers, students, and clinicians worldwide. Currently, there are no comprehensive books covering the field of human reproductive and prenatal genetics. As such, this book aims to be among the largest and most useful references available. Features chapter contributions from leading international scientists and clinicians Provides in-depth coverage of key topics in human reproductive and prenatal genetics, including genetic controls, fertilization and implantation, in vitro culture of the human embryo for the study of post-implantation development, and more Identifies how researchers and clinicians can implement the latest genetic, epigenetic, and –omics based approaches

Book Description :

The purpose of this manual is to provide an educational genetics resource for individuals, families, and health professionals in the New York - Mid-Atlantic region and increase awareness of specialty care in genetics. The manual begins with a basic introduction to genetics concepts, followed by a description of the different types and applications of genetic tests. It also provides information about diagnosis of genetic disease, family history, newborn screening, and genetic counseling. Resources are included to assist in patient care, patient and professional education, and identification of specialty genetics services within the New York - Mid-Atlantic region. At the end of each section, a list of references is provided for additional information. Appendices can be copied for reference and offered to patients. These take-home resources are critical to helping both providers and patients understand some of the basic concepts and applications of genetics and genomics.

Book Description :

Clinical Ethics at the Crossroads of Genetic and Reproductive Technologies offers thorough discussions on preconception carrier screening, genetic engineering and the use of CRISPR gene editing, mitochondrial gene replacement therapy, sex selection, predictive testing, secondary findings, embryo reduction and the moral status of the embryo, genetic enhancement, and the sharing of genetic data. Chapter contributions from leading bioethicists and clinicians encourage a global, holistic perspective on applied challenges and the moral questions relating the implementation of genetic reproductive technology. The book is an ideal resource for practitioners, regulators, lawmakers, clinical researchers, genetic counselors and graduate and medical students. As the Human Genome Project has triggered a technological revolution that has influenced nearly every field of medicine, including reproductive medicine, obstetrics, gynecology, andrology, prenatal genetic testing, and gene therapy, this book presents a timely resource. Provides practical analysis of the ethical issues raised by cutting-edge techniques and recent advances in prenatal and reproductive genetics Contains contributions from leading bioethicists and clinicians who offer a global, holistic perspective on applied challenges and moral questions relating to genetic and genomic reproductive technology Discusses preconception carrier screening, genetic engineering and the use of CRISPR gene editing, mitochondrial gene replacement therapy, ethical issues, and more

Book Description :

Covers genetic disorders most likely to be of interest to primary-care physicians.

Book Description :

Prenatal diagnosis is the most important and fast moving area in obstetrics. This important new title is intended to become the definitive international book on the subject. Features: * Strong editorial team - offering a combination of geneticist and obstetrician * Both editors are of renowned international standing * Expert contributors from the UK, USA, Europe and Australia * Final chapter will summarise the major developments in the field - cross-referenced to and from the relevant chapters * Current, in-depth coverage of prenatal diagnosis

Book Description :

Prenatal Genetic Counseling: Practical Support for Prenatal Diagnostics, Decision-Making, and Dealing with Uncertainty provides a foundation for new research and a one-stop source for physicians, genetic counselors, psychologists, social workers, general practitioners, grief workers, translational researchers, and administrators seeking to work in the field of clinical genomics ethically and in full consideration of patients’ psychological well-being. Here, an international team of experienced counselors and clinician-scientists lay out the range of methods and technologies applied in prenatal decision-making, including NIPT; invasive testing with microarray analysis or whole genome sequencing; ultrasound screening; and prenatal diagnosis for known hereditary conditions, among others. From here, they examine specific challenges in the clinical translation. In a field where decisions about life or death of a child are made, professionals are bound to encounter uncertainty. This book was co-created by health care practitioners, scientists, patients and students to provide insights and direction for offering support straight from the heart to couples faced with fetal anomalies. To make this possible for all couples, diversity in prenatal genetic counseling is also addressed. Finally, next steps in prenatal genetic counseling research and clinical implementation are discussed. As we are challenged by the rapid advances in prenatal genomics, so are our patients. Learning from our patients with every encounter, this book aims to offer access to the insights we gathered as well as to stimulate lifelong learning. Features a range of international chapter authors addressing prenatal medicine from bench-to-bedside, including health care practitioners, scientists, patients and students. Covers use and psychological implications of technologies applied in prenatal decision-making, including NIPT, invasive testing with microarray analysis; exome sequencing; whole genome sequencing; and ultrasound screening and addresses diversity in prenatal genetic counseling Discusses next steps for prenatal genetic counseling research and common challenges in the clinic, with detailed case descriptions offering insights from the authors’ counseling experiences

Book Description :

Technological advances continue to expand the number of genetic disorders that can be diagnosed in utero. Utilization of this new technology has de manded special expertise available in relatively few academic centers. As these new applications have become more widespread so have the realities of the medicolegal implications. Notwithstanding the laboratory challenges, most legal action, at least in the United States, has arisen from the physician's failure to inform a patient about the risks of a genetic disorder or the oppor tunities presented by prenatal diagnosis. Hence an extensive thorough reex amination of the subject seems appropriate and timely. The steady escalation in the number of prenatal genetic studies now being done in the western world makes it imperative for the physician to have a thorough comprehension of the subject in its entirety. I am, therefore, fortu nate in having colleagues who as acknowledged experts have shared their knowledge and experience in order to make this volume a major critical repository of facts and guidance about prenatal genetic diagnosis. The subject matter ranges from a consideration of required genetic counseling through the intricacies of establishing prenatal diagnoses. Special attention is focused on new advances using ultrasound, a-fetoprotein, fetoscopy, and first trimester diagnosis. Both ethical and legal implications are discussed in detail, as is the development of public policy.

Book Description :

Background: There are few studies on the uptake of non-invasive prenatal screening, but those available suggest substantial variation in uptake in the initial years in which it was offered. There is a need to update the earlier evidence and determine whether there has been any change in usage trends as the number of users have increased. This will help inform policy makers about NIPT uptake under currently existing policies and guidelines which can help inform whether to maintain or refine policies on NIPT. Objectives: The primary objective of this thesis was to investigate recent trends in NIPT utilization, and the secondary objective was to identify differences between pregnant individuals aged 40 years and above and/or with a history of previous aneuploidy who opted for first-tier (first-line screening) or second-tier (contingent screening) NIPT and pregnant individuals aged less than 40 years with no history of previous aneuploidy. Methods: This retrospective cohort study used a province wide birth registry from Ontario and the population studied comprised pregnant individuals with an expected date of delivery from August 1st, 2016 to March 31st, 2020. Results: Of 536,748 pregnant individuals resident in Ontario during the study period, 27,733 were classified as high-risk of giving birth to a baby with a chromosomal aneuploidy and 509,015 were classified as low-risk of giving birth to a baby with a chromosomal aneuploidy. Uptake of NIPT has increased every year since 2016. We found substantial variation in NIPT between regions within the province. Highest uptake was found in urban areas, highest neighbourhood of income and education quintiles, high-risk population, among those with a prenatal care visit in the first trimester, multiple pregnancy, multigravidity, body mass index within the normal range (18.5-24.9 kg/m2), and OHIP funding. Conclusion: Our results suggest a need to provide more education/training about NIPT and funding eligibility to health professionals and pregnant individuals, including low-risk pregnant individuals in the first-tier (first-line screening) NIPT funding policy, to ensure equitable assess.

Book Description :

This book presents the findings of the RCOG Study Group findings on genetics underlying reproductive function.

Book Description :

Recent advances in genomic sequencing and bioinformatics have led to development of noninvasive detection methods with detection rates approaching those obtained with amniocentesis and chorionic villus sampling (CVS). Recently, a novel prenatal testing method has become available. This method, known as non-invasive prenatal testing (NIPT), is a molecular approach for assessing fetal aneuploidy using cell-free fetal deoxyribonucleic acid (cffDNA) from the plasma of pregnant women. NIPT has a false positive rate of about 0.2% and detection rate of about 98% for Down syndrome. NIPT has been used for assessing abnormalities such as trisomy 21, trisomy 18, and trisomy 13. Approximately 10% to 15% of the cell free deoxyribonucleic acid (DNA) in maternal blood comprises of cffDNA. The half-life of cffDNA is short and clears from maternal circulation soon after delivery. Hence, there is no risk of fetal DNA persisting from one pregnancy to the next and confounding test results. The cost of NIPT ranges from US$800 to US$2000 in the USA and from US$500 to US$1500 elsewhere. A Canadian economic study reported a cost range of C$600 to C$800 for NIPT. Among other factors, cost implications for introducing this new technology in clinical practice will need to be considered. At present there is some uncertainty around the incorporation of NIPT into current strategies for prenatal screening and diagnosis. The purpose of this report is to provide information on the cost-effectiveness of non-invasive pre-natal testing and to describe evidence-based guidelines for its use.

Book Description :

Clinical Applications for Next Generation Sequencing provides readers with an outstanding postgraduate resource to learn about the translational use of NGS in clinical environments. Rooted in both medical genetics and clinical medicine, the book fills the gap between state-of-the-art technology and evidence-based practice, providing an educational opportunity for users to advance patient care by transferring NGS to the needs of real-world patients. The book builds an interface between genetic laboratory staff and clinical health workers to not only improve communication, but also strengthen cooperation. Users will find valuable tactics they can use to build a systematic framework for understanding the role of NGS testing in both common and rare diseases and conditions, from prenatal care, like chromosomal abnormalities, up to advanced age problems like dementia. Fills the gap between state-of-the-art technology and evidence-based practice Provides an educational opportunity which advances patient care through the transfer of NGS to real-world patient assessment Promotes a practical tool that clinicians can apply directly to patient care Includes a systematic framework for understanding the role of NGS testing in many common and rare diseases Presents evidence regarding the important role of NGS in current diagnostic strategies

Book Description :

This second edition volume expands on the first edition with more detailed methodologies on prenatal testing and diagnosis, and also covers next-generation sequencing techniques. The chapters in this book are divided into three sections: preimplantation genetic testing, traditional prenatal testing, and non-invasive prenatal testing. This book covers topics such as molecular testing for preimplantation genetic diagnosis of single gene disorders; DNA extraction from various types of prenatal specimens; prenatal diagnosis of cystic fibrosis and Tay-Sachs disease; chromosomal SNP microarrays; and isolation of cell-free DNA from maternal plasma. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Practical and thorough, Prenatal Diagnosis, Second Edition is a valuable resource for any researcher interested in reproducing these techniques in their clinical laboratories.

Book Description :

This book explores the recent clinical and research findings in the field of prenatal screening and diagnosis. It presents new devices and tests such as real-time 3D ultrasound, ultrafast fetal MRI, and next-generation sequencing and discusses genetic counseling and fetal therapy. Written by pioneering scientists, the book is divided into six themed parts: ultrasound examination, genetic tests, genetic disorders, chromosomal diseases, genetic counseling, and techniques, presenting carefully prepared original data.This thought-provoking, instructive and informative book is intended for geneticists, obstetricians, pediatricians, genetic counselors and nurses. Although the incidence of congenital abnormalities such as structural, chromosomal and genetic disorders is very low, it is important to have accurate information on their incidence and likely outcome, and on the screening and diagnosis of congenital abnormalities during pregnancy care. This book provides valuable insights into prenatal screening, genetic counseling and fetal diagnosis.

Book Description :

Groundbreaking, comprehensive, and developed by a panel of leading international experts in the field, Textbook of Assisted Reproduction provides a multidisciplinary overview of the diagnosis and management of infertility, which affects 15% of all couples around the world. The book aims to cover all aspects of assisted reproduction. Particular attention is given to topics such as the assessment of infertile couples; assisted reproductive techniques (ARTs) including ovulation induction, intra uterine insemination (IUI), in vitro fertilization (IVF) and intracytoplasmic sperm injection (clinical and laboratory aspects); reproductive genetics; and obstetric and perinatal outcomes.

Book Description :

Download Implementing Non invasive Prenatal Testing NIPT book written by , available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Book Description :

The routinization of non-invasive prenatal genetic testing (NIPT) raises urgent questions about disability rights and reproductive justice. Supporters defend NIPT on the grounds that genetic information about the fetus helps would-be parents make better family planning choices. Prenatal Genetic Testing, Abortion, and Disability Justice challenges that assessment by exploring how NIPT can actually constrain pregnant women's options. Prospective parents must balance a complicated array of factors, including the familial, social, and financial support they can reasonably expect to receive if they choose to carry a disabled fetus to term and raise after birth, causing many pregnant women to "choose" termination. Focusing on the US, the book explores the intent and effects of prenatal screening in connection to women's bodily autonomy and disability rights, addressing themes at the intersection of genetic medicine, policymaking, critical disabilities studies, and political theory. Knight and Miller shift debates about reprogenetics from bioethics to political practice, as well as thoroughly critiquing the neoliberal state and the eugenic technologies that support it. Providing concrete suggestions for reforming medical practice, welfare policy, and cultural norms surrounding disability, this book highlights sites of necessary reform to envision how prospective parents can make truly free choices about prenatal genetic testing and selection abortion.

Book Description :

Developmental and Fetal Origins of Differences in Monozygotic Twins: From Genetics to Environmental Factors examines the major causes of discordance in monozygotic twins, from genetic, to environmental influences, including discussions on the genetic, epigenetic, fetal and environmental factors. Twin differences discussed include malformations, deformations and disruptions secondary to inequitable division of the early embryo, chromosome and single gene mosaicism, Nonrandom X chromosome inactivation, mitochondrial heteroplasmy, epigenetic variation, and variable and inequitable blood supply, among other influences. Differences in hemoglobin levels, placentation and amniotic fluid are also examined, while full color images illustrate discordant anomalies and twin differences throughout. Examines the major causes of discordance in monozygotic twins and their relevance for future studies and clinical management Discusses NIPT in MZ twins, twin imaging during fetal development, blood tests and forensic analysis Features contributions from international experts in twin genetics and developmental biology

Book Description :

Raising hopes for disease treatment and prevention, but also the specter of discrimination and "designer genes," genetic testing is potentially one of the most socially explosive developments of our time. This book presents a current assessment of this rapidly evolving field, offering principles for actions and research and recommendations on key issues in genetic testing and screening. Advantages of early genetic knowledge are balanced with issues associated with such knowledge: availability of treatment, privacy and discrimination, personal decision-making, public health objectives, cost, and more. Among the important issues covered: Quality control in genetic testing. Appropriate roles for public agencies, private health practitioners, and laboratories. Value-neutral education and counseling for persons considering testing. Use of test results in insurance, employment, and other settings.