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Prenatal ultrasound

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https://www.readbyqxmd.com/read/29145274/diagnosis-of-fetal-megacystis-with-chromosomal-abnormality-by-2d-prenatal-ultrasound-a-case-report
#1
Fuman She, Shengwen Dong, Bibo Yuan, Xiaoli Gao
RATIONALE: The pathogenesis of fetal megacystis is divided into obstructive and nonobstructive. Megacystis combined with chromosomal abnormalities is rare and most of the cases are nonobstructive. PATIENT CONCERNS: The fetus showed posterior urethral obstructive megacystis with features of bladder enlargement, "keyhole" feature, and thick bladder wall. DIAGNOSES: Here, we present a case of fetal megacystis diagnosed by ultrasound at pregnancy week 15+2 and with multisystem abnormalities...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29143321/interobserver-agreement-on-standardized-ultrasound-and-histopathologic-signs-for-the-prenatal-diagnosis-of-placenta-accreta-spectrum-disorder
#2
Nurit Zosmer, Eric Jauniaux, Catey Bunce, Jenie Panaiotova, Hizbullah Shaikh, Kypros H Nicholaides
OBJECTIVE: To evaluate interobserver agreement in assessment of ultrasound signs and histopathologic findings associated with placenta accreta spectrum (PAS) disorders. METHODS: A retrospective study was conducted using data for patients prenatally diagnosed with PAS disorders at a UK hospital between January 31, 2012, and March 30, 2017. Ultrasound images (including gray-scale and color Doppler imaging [CDI] parameters) and histopathologic slides were reviewed by two observers; the level of agreement was calculated...
November 16, 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/29136677/thymus-growth-and-fetal-immune-responses-in-diabetic-pregnancies
#3
Katharina Warncke, Ramona Lickert, Stephanie Eitel, Karl-Philipp Gloning, Ezio Bonifacio, Eva-Maria Sedlmeier, Petra Becker, Jan Knoop, Andreas Beyerlein, Anette-Gabriele Ziegler
Type 1 diabetes (T1D) during pregnancy possibly affects the development of the thymus and the maturation of the immune system in the offspring. The aim of the ImmunDiabRisk study was to investigate thymus growth and maternal and fetal immune responses in pregnancies with and without T1D. The thymus circumferences of the fetuses of pregnant women with T1D (n=49) and without diabetes (n=59) were measured using ultrasound around the 29th gestational week and standardized for gestational age. Simultaneously, the frequencies and total numbers of cell markers were analyzed by flow cytometry in maternal peripheral blood, and at birth in umbilical cord blood...
November 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/29136274/diagnostic-accuracy-of-magnetic-resonance-imaging-in-detecting-the-severity-of-abnormal-invasive-placenta-a-systematic-review-and-meta-analysis
#4
Alessandra Familiari, Marco Liberati, Philip Lim, Giorgio Pagani, Giuseppe Cali, Danilo Buca, Lamberto Manzoli, Maria Elena Flacco, Giovanni Scambia, Francesco D'Antonio
Accurate prenatal diagnosis of abnormally invasive placenta (AIP) is fundamental because it significantly reduces maternal morbidities MATERIAL AND METHODS: Medline, Embase, CINAHL and The Cochrane databases were searched. The primary aim of the present review was to elucidate the diagnostic accuracy of prenatal magnetic resonance imaging (MRI) in recognizing the severity of AIP, defined as the depth and topography of invasion. The secondary aim was to ascertain the strength of association between each MRI sign and the depth of placental invasion and to test their individual predictive accuracy in detecting such invasion...
November 14, 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/29135270/-effectiveness-of-prenatal-ultrasound-in-fetal-and-neonatal-malformations-and-examination-of-difficulty-and-uncertainty-factors
#5
Fanni Rebeka Erős, Artúr Beke
INTRODUCTION AND AIM: The birth prevalence of congenital malformations is around 2-3%. The aim of this study was to examine the efficacy of ultrasound diagnostics in detecting congenital malformations. METHOD: We have processed the prenatal sonographic and postnatal clinical details of 1867 inborn abnormalities in 1200 fetuses over a 7-year period. RESULTS: The mean maternal age upon delivery/abortion was 29.96 ± 5.88 years. In 671 cases, the pregnancy concluded in delivery with a mean gestational age of 35...
November 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/29133166/determination-of-threshold-value-for-follow-up-of-isolated-antenatal-hydronephrosis-detected-in-the-second-trimester
#6
Ravi de Roo, Bart J Voskamp, C Emily Kleinrouweler, Ben W Mol, Eva Pajkrt, Antonia H M Bouts
INTRODUCTION: Isolated antenatal hydronephrosis (ANH), defined as a dilation of the renal pelvis (≥5 mm), is one of the most common abnormalities detected on prenatal ultrasound. However, established cut-off values for postnatal follow-up differ between countries and are based on little evidence. The current protocol in the Netherlands for follow-up might be too conservative. OBJECTIVE: To assess the applicability of a higher threshold for follow-up of isolated antenatal hydronephrosis (ANH) than the current practice, without the risk of missing significant postnatal urinary tract obstruction...
June 21, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/29133165/infant-crossed-renal-ectopia-with-upj-obstruction-repaired-via-robot-assisted-laparoscopic-pyeloplasty
#7
K Puttmann, G O Huang, J T White, K Kukreja, A Seth, C J Koh
INTRODUCTION: We present a robot-assisted approach to surgical treatment of UPJ obstruction associated with crossed renal ectopia in a male infant. METHODS: A 31 year-old woman presented at 37 weeks gestation for prenatal hydronephrosis and delivered at 39 weeks. Renal ultrasound identified the bladder and right kidney in a crossed ectopic position in the left pelvis, and MRI showed the cystic lesion to be hydronephrosis associated with a ureteropelvic junction obstruction of the crossed ectopic right kidney...
October 27, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/29131362/sex-discordance-identification-following-non-invasive-prenatal-testing
#8
Ebony J Richardson, Fergus P Scott, Andrew C McLennan
OBJECTIVE: To characterize genotype-phenotype discordance identified in the routine clinical setting, and explore the associated diagnostic and counseling challenges. METHOD: Cases were derived from a cohort of pregnant women who attended a multi-site specialist prenatal screening and ultrasound service for non-invasive prenatal testing by cell-free DNA analysis and mid-trimester fetal morphology assessment. RESULTS: Seven cases of genotype-phenotype discordance were identified from a cohort of 12,919 women between June 2013 - March 2017 (incidence 1/1845 pregnancies)...
November 13, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/29128491/screening-for-fetal-chromosomal-and-subchromosomal-disorders
#9
REVIEW
Sarah Harris, Dallas Reed, Neeta L Vora
Screening for fetal chromosomal disorders has evolved greatly over the last four decades. Initially, only maternal age-related risks of aneuploidy were provided to patients. This was followed by screening with maternal serum analytes and ultrasound markers, followed by the introduction and rapid uptake of maternal plasma cell-free DNA-based screening. Studies continue to demonstrate that cfDNA screening for common aneuploidies has impressive detection rates with low false-positive rates. The technology continues to push the boundaries of prenatal screening as it is now possible to screen for less common aneuploidies and subchromosomal disorders...
November 8, 2017: Seminars in Fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29127960/thoracoscopic-lobectomy-for-congenital-lung-lesions
#10
REVIEW
Jarrett Moyer, Hanmin Lee, Lan Vu
Congenital lung lesions (CLLs) comprise a heterogeneous group of developmental and histologic entities often diagnosed on screening prenatal ultrasound. Most fetuses with CLL are asymptomatic at birth; however, the risk of malignancy and infection drives the decision to prophylactically resect these lesions. The authors describe their approach to minimally invasive lobectomy in children with CLLs, postoperative care, and management of procedure-specific complications.
December 2017: Clinics in Perinatology
https://www.readbyqxmd.com/read/29125628/genomics-based-non-invasive-prenatal-testing-for-detection-of-fetal-chromosomal-aneuploidy-in-pregnant-women
#11
REVIEW
Mylène Badeau, Carmen Lindsay, Jonatan Blais, Leon Nshimyumukiza, Yemisi Takwoingi, Sylvie Langlois, France Légaré, Yves Giguère, Alexis F Turgeon, William Witteman, François Rousseau
BACKGROUND: Common fetal aneuploidies include Down syndrome (trisomy 21 or T21), Edward syndrome (trisomy 18 or T18), Patau syndrome (trisomy 13 or T13), Turner syndrome (45,X), Klinefelter syndrome (47,XXY), Triple X syndrome (47,XXX) and 47,XYY syndrome (47,XYY). Prenatal screening for fetal aneuploidies is standard care in many countries, but current biochemical and ultrasound tests have high false negative and false positive rates. The discovery of fetal circulating cell-free DNA (ccfDNA) in maternal blood offers the potential for genomics-based non-invasive prenatal testing (gNIPT) as a more accurate screening method...
November 10, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29119576/natural-course-of-fetal-axillary-lymphangioma-based-on-prenatal-ultrasound-studies
#12
Theera Tongsong, Suchaya Luewan, Jiraporn Khorana, Sirinart Sirilert, Cholaros Charoenratana
This series and literature review aimed to prenatally characterize the nature of axillary lymphangioma. A total of 30 cases, including our 5 cases, were analyzed. Insights gained from this review are as follows: Septate and nonseptate cysts seem to be different entities. The nonseptate type tends to be small and transient but more highly associated with aneuploidies. Septate cysts are very rarely associated with other abnormalities and hydrops fetalis, unlike cystic hygroma colli, but are more progressive with gestational age and associated with adverse outcomes...
November 9, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29113511/analysis-of-the-clinical-outcomes-of-fetal-bowel-dilatation-combined-with-other-abnormal-ultrasonographic-features
#13
Suting Xu, Wei Zhong, Zhuanxing Shen, Changping Dai, Huimin Xia, Qiansi Guan, Lihua Bai, Jiakang Yu
OBJECTIVES: To explore the significance of fetal bowel dilatation combined with other abnormal ultrasound features in the diagnosis of gastrointestinal malformation. METHODS: A retrospective study of fetuses with bowel dilatation was performed, from August 2012 to October 2015. All the cases were identified from the ultrasound database and all observations of the relationship of prenatal abnormal abdominal ultrasound features and intestinal malformation were performed through the infancy stage...
November 7, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29112643/assessment-of-fetal-congenital-heart-diseases-by-4-dimensional-ultrasound-using-spatiotemporal-image-correlation-pictorial-review
#14
Edward Araujo Júnior, Gabriele Tonni, Nathalie Jeanne Bravo-Valenzuela, Fabricio Da Silva Costa, Simon Meagher
The aim of this pictorial review is to describe the technical advances achieved through the application of 4-dimensional (4D) ultrasound using spatiotemporal image correlation (STIC) over conventional 2-dimensional ultrasound in the prenatal detection of congenital heart disease (CHD). Spatiotemporal image correlation is a volume imaging technique that simplifies fetal heart studies while providing more diagnostic information than is typically available from traditional 2-dimensional studies. Four-dimensional software allows the study of cardiac anatomy and function during a single cardiac cycle and has greatly contributed to diagnostic enhancement of CHD...
November 6, 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/29094487/effectiveness-of-fetal-cardiac-screening-for-congenital-heart-disease-using-a-combination-of-the-four-chamber-view-and-three-vessel-view-during-the-second-trimester-scan
#15
Mina Itsukaichi, Takehiro Serikawa, Kosuke Yoshihara, Hiroshi Suzuki, Kazufumi Haino, Masayuki Yamaguchi, Takayuki Enomoto, Koichi Takakuwa
AIM: We aimed to assess the accuracy and effectiveness of fetal cardiac screening for congenital heart disease (CHD) during the second trimester by general obstetricians in a non-selected population. METHODS: In this multicenter, prospective cohort study of fetal cardiac screening, four-chamber and three-vessel views were recorded by obstetricians at 18-21 gestational weeks (GW). A total of 3005 fetuses that were scheduled for delivery at our institution were included...
November 2, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/29093756/a-case-of-placental-trisomy-18-mosaicism-causing-a-false-negative-nipt-result
#16
Jiexia Yang, Yiming Qi, Fangfang Guo, Yaping Hou, Haishan Peng, Dongmei Wang, Haoxin Oy, Aihua Yin
Background: The non-invasive prenatal testing that evaluates circulating cell free DNA, and has been established as an additional pregnancy test for detecting the common fetal trisomies 21, 18 and 13 is rapidly revolutionizing prenatal screening as a result of its increased sensitivity and specificity. However, false positive and false negative results still exist. Case presentation: We presented a case in which the non-invasive prenatal testing results were normal at 15 gestational age (GA), but an ultrasound examination at 30GA showed that the fetus had heart abnormalities, and the third trimester ultrasound at 33GA noted multiple anomalies including a 3...
2017: Molecular Cytogenetics
https://www.readbyqxmd.com/read/29080223/comparison-of-first-tier-cell-free-dna-screening-for-common-aneuploidies-with-conventional-publically-funded-screening
#17
Sylvie Langlois, JoAnn Johnson, François Audibert, Jean Gekas, Jean Claude Forest, André Caron, Keli Harrington, Melanie Pastuck, Hasna Meddour, Amélie Tétu, Julian Little, François Rousseau
OBJECTIVE: This study evaluates the impact of offering cfDNA screening as a first tier test for trisomies 21 and 18. METHODS: This is a prospective study of pregnant women undergoing conventional prenatal screening who were offered cfDNA screening in the first trimester with clinical outcomes obtained on all pregnancies. RESULTS: 1198 pregnant women were recruited. The detection rate of trisomy 21 with standard screening was 83% with a false positive rate of 5...
October 28, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/29078654/unusual-case-of-subxiphoid-uniportal-vats-right-upper-lobectomy-in-a-patient-with-interrupted-inferior-vena-cava-with-azygous-continuation
#18
Firas Emad Abu Akar, Chenlu Yang, Yiming Zhou, Lei Lin, Diego Gonzalez-Rivas, Lei Jiang
Interrupted IVC (also known as Azygos continuation of the inferior vena cava) is a relatively uncommon congenital condition with prevalence 1.5% (0.2-3%) of the general population (Bass et al.). Although it's usually asymptomatic condition, splenic or cardiac abnormalities could be associated (Hardwick et al.). Incidental diagnosis during prenatal ultrasound screening or by routine imaging is the most common scenario. Special attention is required during right side thoracic procedures surgical resections in order to avoid scarifying the azygos vein that could lead to fatal results (Effler et al...
2017: J Vis Surg
https://www.readbyqxmd.com/read/29075046/a-novel-approach-to-prenatal-measurement-of-the-fetal-frontal-lobe-using-three-dimensional-sonography
#19
Steffen A Brown, Rebecca Hall, Lauren Hund, Hilda L Gutierrez, Timothy Hurley, Bradley D Holbrook, Ludmila N Bakhireva
OBJECTIVE: While prenatal 3D ultrasonography results in improved diagnostic accuracy, no data are available on biometric assessment of the fetal frontal lobe. This study was designed to assess feasibility of a standardized approach to biometric measurement of the fetal frontal lobe and to construct frontal lobe growth trajectories throughout gestation. STUDY DESIGN: A sonographic 3D volume set was obtained and measured in 101 patients between 16.1 and 33.7 gestational weeks...
March 2017: Journal of Reproductive Medicine
https://www.readbyqxmd.com/read/29072377/-congenital-ileal-stenosis-late-clinical-manifestations-of-early-prenatal-suspicion
#20
Avi On, Mary Abdo, Sammi Haddad, Wail Naser, Said Abozaid
Congenital stenosis (partial obstruction) of the small intestine is uncommon in comparison to atresia (complete obstruction). The clinical manifestations of stenosis could be delayed up to several weeks post-delivery. We present a case wherein a baby with a prenatal ultrasound examination showed a suspicious picture of small bowel obstruction. However, the clinical manifestations after delivery and imaging studies were misleading and non-classic; therefore, the resection of the stenotic portion of the ileum was delayed until the baby was one month of age...
October 2017: Harefuah
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