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"Trisomy 18"

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https://www.readbyqxmd.com/read/27896246/quantitative-fluorescent-polymerase-chain-reaction-for-rapid-prenatal-diagnosis-of-fetal-aneuploidies-in-chorionic-villus-sampling-in-a-single-institution
#1
You Jung Shin, Jin Hoon Chung, Do Jin Kim, Hyun Mee Ryu, Moon Young Kim, Jung Yeol Han, June Seek Choi
OBJECTIVE: To validate quantitative fluorescent polymerase chain reaction (QF-PCR) via chorionic villus sampling (CVS) for the diagnosis of fetal aneuploidies. METHODS: We retrospectively reviewed the medical records of consecutive pregnant women who had undergone CVS at Cheil General Hospital between December 2009 and June 2014. Only cases with reported QF-PCR before long-term culture (LTC) for conventional cytogenetic analysis were included, and the results of these two methods were compared...
November 2016: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/27889224/fetal-megacystis-a-systematic-review
#2
REVIEW
K Taghavi, C Sharpe, M D Stringer
: Fetal megacystis is variably defined and understood. The literature on fetal megacystis was systematically reviewed, focusing on prenatal diagnosis, associations and outcomes. This yielded a total of 18 primary references and eight secondary references. Fetal megacystis has an estimated first-trimester prevalence of between 1:330 and 1:1670, with a male to female ratio of 8:1. In the first trimester, megacystis is most commonly defined as a longitudinal bladder dimension of ≥7 mm...
October 8, 2016: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/27818252/associated-anomalies-in-cases-with-anotia-and-microtia
#3
Claude Stoll, Yves Alembik, Beatrice Dott, Marie-Paule Roth
Infants with anotia and microtia (AM) often have other non-AM associated congenital anomalies. The purpose of this investigation was to assess the prevalence and the types of these associated anomalies in a defined population. The associated anomalies in infants with AM were collected in all livebirths, stillbirths and terminations of pregnancy during 29 years in 387,067 consecutive births in the area covered by our population-based registry of congenital malformations. Of the 146 cases with AM registered during this period, representing a prevalence of 3...
November 3, 2016: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/27816335/developmental-changes-in-aortic-mechanical-properties-in-normal-fetuses-and-fetuses-with-cardiovascular-disease
#4
Mio Taketazu, Masaya Sugimoto, Hirofumi Saiki, Hirotaka Ishido, Satoshi Masutani, Hideaki Senzaki
BACKGROUND: We hypothesized that fetal aortic mechanical properties assessed by aortic diameter (AoD) and flow show maturational changes during the gestational period, and that these properties are different in fetuses with congenital heart diseases and fetuses with normal development. METHODS: Phasic changes in ascending AoD along with Doppler flow profile were measured in 84 consecutive normal fetuses (gestational age, 18-36 weeks) and in 30 consecutive fetuses with cardiovascular diseases (gestational age, 22-39 weeks)...
September 28, 2016: Pediatrics and Neonatology
https://www.readbyqxmd.com/read/27760457/factors-affecting-parental-decisions-to-terminate-pregnancy-in-the-presence-of-chromosome-abnormalities-a-japanese-multicenter-study
#5
Miyuki Nishiyama, Akihiko Sekizawa, Kohei Ogawa, Hideaki Sawai, Hiroaki Nakamura, Osamu Samura, Nobuhiro Suzumori, Setsuko Nakayama, Takahiro Yamada, Masaki Ogawa, Yukiko Katagiri, Jun Murotsuki, Yoko Okamoto, Akira Namba, Haruka Hamanoue, Masanobu Ogawa, Kiyonori Miura, Shunichiro Izumi, Yoshimasa Kamei, Haruhiko Sago
OBJECTIVE: To investigate the rates of termination of pregnancy (TOP) for fetal chromosomal abnormalities and factors related to such parental decision in Japan. METHODS: A multicenter retrospective cohort study of chromosomal abnormalities diagnosed before 22 weeks of gestation between April 2008 and March 2015. The pregnancy outcomes and parental decisions were investigated. RESULTS: Among 931 fetuses with chromosome abnormalities, the total TOP rate was 75...
October 19, 2016: Prenatal Diagnosis
https://www.readbyqxmd.com/read/27739366/clinical-experience-of-non-invasive-prenatal-chromosomal-aneuploidy-testing-in-190-277-patient-samples
#6
H Hu, H Liu, C Peng, T Deng, X Fu, C Chung, E Zhang, C Lu, K Zhang, Z Liang, Y Yang
OBJECTIVES: To detect trisomy 21, 18, and 13 in 190,277 clinical samples from the medical diagnostic laboratories of ten hospitals. METHODS: The study assessed the clinical performance of non-invasive prenatal testing (NIPT) in detecting trisomy 21, 18, and 13 in 190,277 clinical samples using semiconductor sequencing technology. RESULTS: NIPT participants were at a mean gestation of 17.79 weeks (range, 9-36) and age of 31.12 years (range, 18-46) at the time of testing in average...
October 13, 2016: Current Molecular Medicine
https://www.readbyqxmd.com/read/27694391/using-targeted-sequencing-of-paralogous-sequences-for-noninvasive-detection-of-selected-fetal-aneuploidies
#7
Christopher K Ellison, Youting Sun, Grant Hogg, Jesse Fox, Helen Tao, Erin McCarthy, Bright Sagoe, Mostafa A Azab, Amin R Mazloom, John Tynan, Timothy Burcham, Sung K Kim, Dirk van den Boom, Mathias Ehrich, Taylor J Jensen
BACKGROUND: Current methods for noninvasive prenatal testing (NIPT) ascertain fetal aneuploidies using either direct counting measures of DNA fragments from specific genomic regions or relative measures of single nucleotide polymorphism frequencies. Alternatively, the ratios of paralogous sequence pairs were predicted to reflect fetal aneuploidy. We developed a NIPT assay that uses paralog sequences to enable noninvasive detection of fetal trisomy 21 (T21) and trisomy 18 (T18) using cell-free DNA (cfDNA) from maternal plasma...
December 2016: Clinical Chemistry
https://www.readbyqxmd.com/read/27686549/-the-study-of-relationship-between-fetal-radius-loss-and-chromosomal-abnormality
#8
R Q Yang, Z Y Liu, J Hu, Y Nan, L M Fan
Objective: To explore the relationship between fetal radius loss and chromosomal abnormalities. Methods: Collect data of 3 100 cases pregnant women who had been checked in the second hospital of Jilin University from 2012 to 2015.There were 8 cases of absent radius, except 1 case of fetal lost follow-up, the remaining 7 cases had complete ultrasound, chromosome examination and the result of induction.The relationship between fetal radius loss and chromosomal abnormalities were analysed. Results: There were 1 case of 21 trisomy syndrome, 1 case of trisomy 13 syndrome, 2 cases of trisomy 18, 2 cases of chromosome translocation, 1 case of normal chromosome result and 1 case was lost to follow-up of the 8 absent radius fetuses...
September 20, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/27668198/screening-for-chromosomal-abnormalities-using-combined-test-in-the-first-trimester-of-pregnancy
#9
Soo Yeon Park, In Ae Jang, Min Ah Lee, Young Ju Kim, Sun Hee Chun, Mi Hye Park
OBJECTIVE: This study was designed to review the screening performance of combined test at the Ewha Womans University Mokdong hospital. METHODS: All women admitted for routine antenatal care between January 1st 2008 and December 31st 2012 with a known pregnancy outcome were included in this study, totaling 1,156 women with singleton pregnancies presenting at 10 to 13 weeks of gestation. Women were offered screening using a combination of maternal serum pregnancy-associated plasma protein-A, free β-human chorionic gonadotropin and fetal nuchal translucency thickness...
September 2016: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/27643592/perspectives-on-the-care-and-advances-in-the-management-of-children-with-trisomy-13-and-18
#10
John C Carey, Tomoki Kosho
The trisomy 13 and trisomy 18 syndromes are important and relatively common chromosome conditions each consisting of a recognizable pattern of multiple congenital anomalies, an increased neonatal and infant mortality, and a marked cognitive and motor disability in older children. Because of the medically serious nature of the outcomes, the traditional approach to management in the newborn and early infancy periods has been to withhold technological support and surgery. In the last decade a rich dialogue has emerged in the literature; one view makes the case for pure comfort care for the benefit of the child while the other view supports full intervention in appropriate situations...
September 2016: American Journal of Medical Genetics. Part C, Seminars in Medical Genetics
https://www.readbyqxmd.com/read/27636887/dna-genotyping-of-suspected-partial-hydatidiform-moles-detects-clinically-significant-aneuploidy
#11
Terence J Colgan, Martin C Chang, Shabin Nanji, Elena Kolomietz
The diagnosis of partial hydatidiform mole (PM) is especially difficult early in gestation as the morphology of nonmolar abortus (NMA) may mimic PM. Molecular genotyping analysis can definitively identify diandric triploidy, the genetic basis for PM, whereas NMA cases show a biparental inheritance. This 4-year retrospective study sought to determine what proportion of NMA cases which were initially suspected as being PM was aneuploid, and whether this knowledge of aneuploidy status is clinically useful. Cases with atypical villous morphology on histopathology suggestive of PM were subjected to molecular genotyping...
September 15, 2016: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/27617759/-survival-medical-care-and-quality-of-life-in-children-with-trisomy-13-and-18
#12
A Kusztrich, D Hüseman, L Garten, H Neitzel, C Bührer
BACKGROUND: While infants with trisomy 13 (T13) and trisomy 18 (T18) are known to die early, parents want to know more about life expectancy and quality of life. METHODS: 30-year single-center retrospective chart analysis (1980-2010) of cytogenetically confirmed T13 and T18 cases. Mothers of infants who had lived 3 months or longer were approached to judge their infant's quality of life and talk about their experiences with medical staff. RESULTS: Data of 18/20 T13 infants and 18/21 T18 infants could be retrieved...
September 2016: Klinische Pädiatrie
https://www.readbyqxmd.com/read/27617135/a-case-of-anterior-segment-dysgenesis-with-iridolenticular-adhesions-in-trisomy-18
#13
Paldeep S Atwal
Trisomy 18 (or Edwards syndrome) has an incidence of 1 in 6,000 to 8,000 live births, making it the second most common trisomy after trisomy 21. Ophthalmologic anomalies include epicanthal folds, hypertelorism, and hypoplastic supraorbital ridges, whereas corneal opacities, microcornea, congenital glaucoma, cataract, retinal depigmentation, retinal vascular tortuosity, colobomatous microphthalmia, and cyclopia are thought to be less common; iridolenticular adhesions have not been previously reported. Our patient was a female with confirmed trisomy 18 with ophthalmologic examination revealing corneal opacities and iridolenticular adhesions...
December 2015: Journal of Pediatric Genetics
https://www.readbyqxmd.com/read/27617134/hepatoblastoma-associated-with-trisomy-18
#14
Leonardo I Valentin, Luis Perez, Prakash Masand
Very few reports exist in the literature regarding a possible association between trisomy 18 patients and the incidence of hepatoblastoma. Fewer reports exist on patients with multifocal hepatoblastoma. We reviewed our institutional database for the past 10 years and found three cases with this possible association to the tumor.
December 2015: Journal of Pediatric Genetics
https://www.readbyqxmd.com/read/27616633/evidence-for-feasibility-of-fetal-trophoblastic-cell-based-noninvasive-prenatal-testing
#15
Amy M Breman, Jennifer C Chow, Lance U'Ren, Elizabeth A Normand, Sadeem Qdaisat, Li Zhao, David M Henke, Rui Chen, Chad A Shaw, Laird Jackson, Yaping Yang, Liesbeth Vossaert, Rachel H V Needham, Elizabeth J Chang, Daniel Campton, Jeffrey L Werbin, Ron C Seubert, Ignatia B Van den Veyver, Jackie L Stilwell, Eric P Kaldjian, Arthur L Beaudet
OBJECTIVE: The goal was to develop methods for detection of chromosomal and subchromosomal abnormalities in fetal cells in the mother's circulation at 10-16 weeks' gestation using analysis by array comparative genomic hybridization (CGH) and/or next-generation sequencing (NGS). METHOD: Nucleated cells from 30 mL of blood collected at 10-16 weeks' gestation were separated from red cells by density fractionation and then immunostained to identify cytokeratin positive and CD45 negative trophoblasts...
November 2016: Prenatal Diagnosis
https://www.readbyqxmd.com/read/27614983/early-bilateral-gonadoblastoma-in-a-young-child-with-mosaicism-for-turner-syndrome-and-trisomy-18-with-y-chromosome
#16
Jayne M MacMahon, Maureen J O'Sullivan, Michael McDermott, Feargal Quinn, Thomas Morris, Andrew J Green, David R Betts, Susan M O'Connell
Mosaic Turner syndrome (TSM) commonly occurs in the form of 45,X/46,XX and 45,X/46,X,i(X)(q10). Mosaicism for a Y chromosome, 45,X/46,XY, has been well documented and is associated with increased risk of gonadoblastoma (GB). To date, there are only six reported cases of TSM with a trisomy 18 karyotype, and only two of these were phenotypically female with 45,X/47,XY,+18 karyotype. We present the case of a phenotypically female infant born with dysmorphic features. G-banded karyotype and interphase FISH of blood showed 45,X in 95% and 47,XY,+18 (trisomy 18) in 5% of cells analysed...
September 10, 2016: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/27597552/screening-for-trisomy-18-using-traditional-combined-screening-vs-ultrasound-based-protocol-in-tertiary-center-environment
#17
Marcin Wiechec, Anna Knafel, Agnieszka Nocun, Artur Ludwin, Inga Ludwin, Marek Maczka, Damian Zietek, Marcin Pasternok, Dietmar Moosburger, Sebastian Zalewski, Wioletta Rozmus-Warcholinska
OBJECTIVES: To compare the screening performances of combined screening test risk algorithm for trisomy 18 (T18) using various cutoffs with a multiparameter ultrasound-based method. To compare the general and maternal age (MA)-based screening performances for T18 by means of combined screening and an ultrasound-based method. METHODS: This was a prospective, multicenter study based on a mixed-risk non-selected population of women referred to referral centers for a first-trimester screening...
September 5, 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27591300/epidemiology-of-chromosomal-trisomies-in-the-east-of-ireland
#18
R McDonnell, C Monteith, M Kennelly, A Martin, D Betts, V Delany, S A Lynch, S Coulter-Smith, S Sheehan, R Mahony
BACKGROUND: Chromosomal trisomies are associated with advancing maternal age. In Ireland, information on the total prevalence and outcome of trisomy affected pregnancies is unavailable. This study aimed to ascertain more precise data on Trisomies 21, 18 and 13 in a large Irish region during the period 2011-2013. METHODS: Multiple information sources were used in case finding, including a regional congenital anomaly register, all maternity and paediatric hospitals in the region and the regional Department of Clinical Genetics...
September 2, 2016: Journal of Public Health
https://www.readbyqxmd.com/read/27580119/segmental-duplication-qf-pcr-a-simple-and-alternative-method-of-rapid-aneuploidy-testing-for-developing-country-like-india
#19
Srinivasan Muthuswamy, Sarita Agarwal
BACKGROUND: Aneuploidy screening is becoming an integral part of routine prenatal screening in developing countries like India, and the need for more cheaper and rapid aneuploidy testing methods are required to relive the anxiety and financial burden among the high-risk couples. Segmental duplication quantitative fluorescent polymerase chain reaction (SD-QF-PCR) emerged as an alternative aneuploidy diagnostic method. METHODS: This study was conducted to optimize and access the utility of SD-QF-PCR in routine prenatal diagnosis to complement existing short tandem repeats (STR) based QF-PCR...
August 31, 2016: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/27566680/wilms-tumor-and-trisomy-18-is-there-an-association
#20
John C Carey, Ann M Barnes
No abstract text is available yet for this article.
September 2016: American Journal of Medical Genetics. Part C, Seminars in Medical Genetics
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