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First trimester ultrasound

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https://www.readbyqxmd.com/read/28533844/utility-of-first-trimester-obstetric-ultrasonography-before-13-weeks-of-gestation-a-retrospective-study
#1
Felix Uduma Uduma, Anelkan Abaslattai, Dianabasi Udoete Eduwem, Morgan Ekanem, Philip Chinedu Okere
INTRODUCTION: First trimester pregnancy is defined as twelve weeks after the last menstrual period. Ultrasonography has revolutionized validation and management of first trimester pregnancies. The aim was to analyze ultrasonographic findings of first trimester pregnancies in University of Uyo teaching hospital (UUTH), Uyo, Nigeria. METHODS: The departmental ultrasonographic records of pregnant women who were referred to Radiology department of UUTH, Uyo, Nigeria...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28521069/experiences-and-expectations-in-the-first-trimester-of-pregnancy-a-qualitative-study
#2
Stina Lou, Michal Frumer, Mette M Schlütter, Olav B Petersen, Ida Vogel, Camilla P Nielsen
BACKGROUND: A dominant context for pregnant women in the Western world is medical technologies such as ultrasound and screening. It has been argued that such technologies may result in tentative pregnancies, which may be particularly prominent in the first trimester. However, little is known about how women experience early pregnancy. OBJECTIVE: To explore the everyday experiences and expectations of first trimester pregnant women in a medicalized context of comprehensive and routine prenatal screening...
May 18, 2017: Health Expectations: An International Journal of Public Participation in Health Care and Health Policy
https://www.readbyqxmd.com/read/28518169/population-based-impact-of-noninvasive-prenatal-screening-on-screening-and-diagnostic-testing-for-fetal-aneuploidy
#3
Lisa Hui, Briohny Hutchinson, Alice Poulton, Jane Halliday
PurposeTo assess the population-wide impact of noninvasive prenatal screening (NIPS) on combined first-trimester screening (CFTS), early ultrasound (11-13 weeks), and invasive prenatal diagnosis in a state with over 73,000 births per year.MethodsAnalysis of population-based data from 2000 to 2015 including (i) invasive prenatal tests, (ii) CFTS uptake, and (iii) total births. Utilization of early ultrasound was analyzed before and after NIPS (2010-2015).ResultsInvasive testing decreased significantly by 39...
May 18, 2017: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/28514880/the-uterocervical-angle-and-its-relationship-with-preterm-birth
#4
Alba Farràs Llobet, Laia Regincós Martí, Teresa Higueras, Inés Zulema Calero Fernández, Andrea Gascón Portalés, María M Goya Canino, Elena Carreras Moratonas
OBJECTIVES: To determine whether the uterocervical angle (UCA) correlates with the risk of spontaneous preterm birth (sPTB) <34 weeks and assess its interobserver variability. STUDY DESIGN: Case-control study of 275 women including 34 who started labor spontaneously and gave birth before 34 weeks of gestation (preterm group) and 241 who gave birth at term (control group). Images used to report cervical length were re-measured for UCA. RESULTS: Mean UCA in the second trimester was wider in the preterm group (105...
May 17, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28511860/first-trimester-fetal-echocardiography-identification-of-cardiac-structures-for-screening-from-6-to-13%C3%A2-weeks-gestational-age
#5
Darren Hutchinson, Angela McBrien, Lisa Howley, Yuka Yamamoto, Priya Sekar, Tarek Motan, Venu Jain, Winnie Savard, Lisa K Hornberger
BACKGROUND: Early fetal echocardiography (FE), performed at 12 to 16 weeks' gestational age (GA), can be used to screen for fetal heart disease akin to that routinely performed in the second trimester. The efficacy of FE at earlier GAs has not been as well explored, particularly with recent advances in ultrasound technology. The aim of this study was to evaluate the efficacy of early FE in assessing fetal heart structure, and the added benefit of color Doppler (CD), from as early as 6 weeks through to 13(+6) weeks' GA...
May 13, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28510070/sonographic-detection-of-open-spina-bifida-in-the-first-trimester-review-of-the-literature
#6
César Meller, Horacio Aiello, Lucas Otaño
In the beginnings, sonographic diagnosis of open spina bifida (OSB) relied on the meticulous scanning of the fetal vertebrae for abnormalities but many defects were missed. After the mid-1980s, however, with the description of the intracranial findings in the second trimester (the "lemon sign" and the "banana sign"), the prenatal diagnosis of OSB was enhanced. In the last 2 decades, there has been widespread uptake of routine ultrasound examination in the first trimester of pregnancy with the purpose of the measurement of fetal crown-rump length to determine gestational age, to screen for trisomy 21 and other aneuploidies, mainly with the nuchal translucency, and for diagnosis of many major abnormalities...
May 16, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28501362/mode-of-conception-does-not-appear-to-affect-placental-volume-in-the-first-trimester
#7
Sara J Churchill, Erica T Wang, Marcy Akhlaghpour, Ellen H Goldstein, Dina Eschevarria, Naomi Greene, Matthew Macer, Temeka Zore, John Williams, Margareta D Pisarska
OBJECTIVE: To study whether infertility treatments, including IVF and non-IVF fertility treatments, are associated with diseases of placental insufficiency in early gestation. First trimester placental volumes by ultrasound and chorionic villi weight during sampling (CVS) were performed to detect differences between pregnancies conceived spontaneously versus with fertility treatments. DESIGN: Retrospective cohort. SETTING: Academic tertiary center...
May 10, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28498241/serum-human-chorionic-gonadotropin-normogram-for-the-detection-of-gestational-trophoblastic-neoplasia
#8
Yalcke Eysbouts, Rick Brouwer, Petronella Ottevanger, Leon Massuger, Fred Sweep, Chris Thomas, Antonius van Herwaarden
OBJECTIVE: The aim of this study was to develop a serum human chorionic gonadotropin (hCG) normogram for both uneventful complete and partial hydatidiform moles in the first-trimester ultrasound era. METHODS: An hCG normogram for both complete and partial hydatidiform moles was constructed, based on 639 patients with uneventful serum hCG regression after evacuation between 1990 and 2014. Serum hCG was measured by an in-house-developed radioimmunoassay, detecting both intact hCG and free β-subunit...
June 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28495235/prenatal-detection-of-megacystis-not-always-an-adverse-prognostic-factor-experience-in-25-consecutive-cases-in-a-tertiary-referral-center-with-complete-neonatal-outcome-and-follow-up
#9
Marcella Pellegrino, Daniela Visconti, Vincenzo Davide Catania, Luisa D'Oria, Carlo Manzoni, Maria Giovanna Grella, Alessandro Caruso, Lucia Masini, Giuseppe Noia
INTRODUCTION: Megacystis is a condition of abnormal enlarged fetal bladder for gestational age, which is usually associated with urological malformations that may constitute a life-threatening condition for the baby. OBJECTIVE: The purpose of this study was to assess the prognostic and etiological criteria of fetal megacystis and to describe the neonatal outcome in a large series collected in a single tertiary center. STUDY DESIGN: A retrospective observational study was conducted between 2008 and 2012...
April 14, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28493464/first-trimester-ultrasound-screening-for-trisomy-21-based-on-maternal-age-fetal-nuchal-translucency-and-different-methods-of-ductus-venosus-assessment
#10
Philipp Wagner, Jiri Sonek, Jessika Klein, Markus Hoopmann, Harald Abele, Karl Oliver Kagan
OBJECTIVE: To examine whether combining the dichotomous assessment of the a-wave and the Ductus venosus (DV) PIV measurement improves first-trimester-screening performance. METHODS: Retrospective study performed at the University Hospital of Tuebingen based on singleton pregnancies that underwent first-trimester-screening including DV flow assessment. In each case, the risk of trisomy 21 was calculated based on maternal age, fetal NT, and DV flow either as dichotomous classification of the a-wave, as measurement of the DV PIV, or both...
May 11, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28492766/clinical-epidemiological-description-of-live-births-with-microcephaly-in-the-state-of-sergipe-brazil-2015
#11
Cibelle Mendes Cabral, Martha Elizabeth Brasil da Nóbrega, Priscila Leal E Leite, Mércia Simone Feitosa de Souza, Daniela Cabral Pizzi Teixeira, Taíse Ferreira Cavalcante, Raulinna Gomes de Souza Lima, Lúcia Maria Sayde de Azevedo Tavares, Priscila Bochi de Souza, Eduardo Saad
OBJECTIVE: to describe the clinical and epidemiological characteristics of microcephaly cases in live births in Sergipe, Brazil, and to calculate the prevalence in its municipalities. METHODS: this is a descriptive study on live births from September 1st to November 30th, 2015, with data from medical records and interviews with mothers. RESULTS: 83 cases of microcephaly were confirmed, with three deaths; prevalence in the 26 municipalities with confirmed cases ranged from 18 to 185/10,000 live births; the median of head circumference was 31 cm (range: 22...
April 2017: Epidemiologia e Servicos de Saude: Revista do Sistema Unico de Saude do Brasil
https://www.readbyqxmd.com/read/28487015/macroscopic-and-microscopic-morphology-of-first-trimester-miscarriage-and-subsequent-pregnancy-outcome-an-exploratory-study
#12
Isabelle M A van Gruting, Moira A Müller, Krijn van Groningen, Niek Exalto
INTRODUCTION: Reduced chorionic villous vascularization is associated with first trimester miscarriage and second trimester fetal loss. Differences in villous vascularization have been observed in combination with complications in the third trimester of pregnancy. The aim of this study was to investigate whether abnormal morphology and reduced chorionic villous vascularization in first trimester miscarriages are associated with an increased risk on adverse outcome and/or pregnancy complications in subsequent pregnancy...
May 2017: Placenta
https://www.readbyqxmd.com/read/28468653/a-description-of-the-methods-of-the-aspirin-supplementation-for-pregnancy-indicated-risk-reduction-in-nulliparas-aspirin-study
#13
Matthew K Hoffman, Shivaprasad S Goudar, Bhalachandra S Kodkany, Norman Goco, Marion Koso-Thomas, Menachem Miodovnik, Elizabeth M McClure, Dennis D Wallace, Jennifer J Hemingway-Foday, Antoinette Tshefu, Adrien Lokangaka, Carl L Bose, Elwyn Chomba, Musaku Mwenechanya, Waldemar A Carlo, Ana Garces, Nancy F Krebs, K Michael Hambidge, Sarah Saleem, Robert L Goldenberg, Archana Patel, Patricia L Hibberd, Fabian Esamai, Edward A Liechty, Robert Silver, Richard J Derman
BACKGROUND: Preterm birth (PTB) remains the leading cause of neonatal mortality and long term disability throughout the world. Though complex in its origins, a growing body of evidence suggests that first trimester administration of low dose aspirin (LDA) may substantially reduce the rate of PTB. METHODS: Hypothesis: LDA initiated in the first trimester reduces the risk of preterm birth. Study Design Type: Prospective randomized, placebo-controlled, double-blinded multi-national clinical trial conducted in seven low and middle income countries...
May 3, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28461175/in-office-hysteroscopic-extraction-of-intrauterine-devices-in-pregnant-patients-who-underwent-prior-ultrasound-guided-extraction-failure
#14
Shlomo B Cohen, Jerome Bouaziz, Alexandra Bar On, Eyal Schiff, Motti Goldenberg, Roy Maschiach
STUDY OBJECTIVE: To determine an effective method of intrauterine device (IUD) retrieval from pregnant women who had previous unsuccessful ultrasound-guided IUD extraction failure. DESIGN: Retrospective cohort study (Canadian task force classification II-1) SETTING: Gynecology department of an outpatient clinic. PATIENTS: Pregnant patients in their first trimester with IUD in situ who underwent prior unsuccessful ultrasound-guided IUD extraction...
April 28, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28457106/detection-rate-and-sonographic-signs-of-trisomy-21-fetuses-at-14-17-weeks-of-gestation
#15
Eliezer Bronshtein, Ido Solt, Moshe Bronshtein, Ayala Gover, Igal Wolman, Zeev Blumenfeld
BACKGROUND: Early prenatal ultrasound is an important part of prenatal screening in Israel. No studies have described the rate of trisomy 21 [T21] identification at 14-17 weeks gestation. OBJECTIVES: To describe the rate of T21 identification by transvaginal sonograms (TVS) at 14-17 weeks gestation. METHODS: We conducted a historical prospective study. Since 1986, early TVS of 72,000 fetuses at 14-17 weeks gestation have been prospectively recorded together with prenatal screening data at a private ultrasound center (AL-KOL, Haifa)...
January 2017: Israel Medical Association Journal: IMAJ
https://www.readbyqxmd.com/read/28456373/book-genetics-for-obstetricians-and-gynaecologists-chapter-genetic-markers-on-ultrasound-scan
#16
REVIEW
Janani Sivanathan, Basky Thilaganathan
Prenatal diagnosis is a rapidly evolving speciality. Screening for aneuploidy begins with non-sonographic features of background risk of maternal age and past and family history. It is possible to diagnose major structural defects in the foetus using second trimester scans. Serum biochemistry markers in the early second trimester were added to increase the detection rate of aneuploidy. However, as some of these abnormalities were amenable to detection earlier in the first trimester, newer modalities were introduced...
March 21, 2017: Best Practice & Research. Clinical Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/28453631/prenatal-cerebellar-growth-trajectories-and-the-impact-of-periconceptional-maternal-and-fetal-factors
#17
I V Koning, J Dudink, I A L Groenenberg, S P Willemsen, I K M Reiss, R P M Steegers-Theunissen
STUDY QUESTION: CAN WE assess human prenatal cerebellar growth from the first until the third trimester of pregnancy and create growth trajectories to investigate associations with periconceptional maternal and fetal characteristics? SUMMARY ANSWER: Prenatal growth trajectories of the human cerebellum between 9 and 32 weeks gestational age (GA) were created using three-dimensional ultrasound (3D-US) and show negative associations with pre-pregnancy and early first trimester BMI calculated from self-reported and standardized measured weight and height, respectively...
June 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28421190/first-trimester-crown-rump-length-and-embryonic-volume-of-fetuses-with-structural-congenital-abnormalities-measured-in-virtual-reality-an-observational-study
#18
L Baken, B Benoit, A H J Koning, P J van der Spek, E A P Steegers, N Exalto
Background. With the introduction of three-dimensional (3D) ultrasound it has become possible to measure volumes. The relative increase in embryonic volume (EV) is much larger than that of the crown-rump length (CRL) over the same time period. We examined whether EV is a better parameter to determine growth restriction in fetuses with structural congenital abnormalities. Study Design, Subjects, and Outcome Measures. CRL and EV were measured using a Virtual Reality (VR) system in prospectively collected 3D ultrasound volumes of 56 fetuses diagnosed with structural congenital abnormalities in the first trimester of pregnancy (gestational age 7(+5) to 14(+5) weeks)...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28414187/metatropic-dysplasia-in-third-trimester-of-pregnancy-and-a-novel-causative-variant-in-the-trpv4-gene
#19
Sara Bargiacchi, Matteo Della Monica, Roberto Biagiotti, Elena Andreucci, Serena Ciabattoni, Paolo Poggi, Marco Di Maurizio, Claudio Defilippi, Ettore Cariati, Sabrina Giglio
Prenatal diagnosis of skeletal dysplasias is particularly difficult for many reasons and differentiating these disorders in the prenatal period can be challenging because they are rare and many of the ultrasound findings are not necessarily pathognomonic for a specific disorder. The diagnosis is often made just after birth or exitus. The prenatal diagnosis of osteochondrodysplasias is based predominantly upon fetal ultrasound findings and it focuses substantially on the possible lethality of the disorder, without always being able to find a specific name for the disorder...
April 13, 2017: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/28413694/first-neonatal-demise-with-travel-associated-zika-virus-infection-in-the-united-states-of-america
#20
Nikolaos Zacharias, Janice Whitty, Sarah Noblin, Sophia Tsakiri, Jose Garcia, Michael Covinsky, Meenakshi Bhattacharjee, David Saulino, Nina Tatevian, Sean Blackwell
Zika virus is increasingly recognized as a fetal pathogen worldwide. We describe the first case of neonatal demise with travel-associated Zika virus infection in the United States of America, including a novel prenatal ultrasound finding. A young Latina presented to our health care system in Southeast Texas for prenatal care at 23 weeks of gestation. Fetal Dandy-Walker malformation, asymmetric cerebral ventriculomegaly, single umbilical artery, hypoechoic fetal knee, dorsal foot edema, and mild polyhydramnios were noted upon initial screening prenatal sonography at 26 weeks...
April 2017: American Journal of Perinatology Reports
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