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ductus venosus

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https://www.readbyqxmd.com/read/28635180/renal-vascularization-indexes-and-fetal-hemodynamics-in-fetuses-with-growth-restriction
#1
Giovana Farina Doro, Janaína Campos Senra, Agatha Sacramento Rodrigues, Seizo Miyadahira, Renata Lopes Ribeiro, Rossana Pulcinelli Vieira, Lisandra Stein Bernardes
OBJECTIVE: To identify the correlation between the renal vascularization index (VI), the flow index (FI) and the vascularization and flow index (VFI) and placental and fetal hemodynamics in fetuses with growth restriction. METHOD: Bidimensional ultrasound and three-dimensional power Doppler with the VOCAL technique were used to determine the renal vascular indexes and fetal and placental hemodynamics in fetuses below the 10(th) percentile for fetal weight. Partial correlation analysis (controlled for renal depth and gestational age) was performed...
June 20, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28629280/absent-ductus-venosus-case-series-from-two-tertiary-centres
#2
Giuseppe Maria Maruotti, Gabriele Saccone, M D Andrea Ciardulli, Laura Letizia Mazzarelli, Vincenzo Berghella, M D Pasquale Martinelli
INTRODUCTION: Congenital absence of the ductus venosus (ADV) is a rare vascular anomaly often associated with fetal cardiac and extracardiac anomalies, aneuploidies, and hydrops. The prognosis depends on the patterns of abnormal venous circulation, on the associated malformations and on chromosomal aberrations. METHODS: We performed a retrospective audit of all consecutive cases with ADV referred in our centres and analysed the outcomes. RESULTS: A total of six cases with prenatally diagnosed ADV were identified...
June 19, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28614966/persistently-elevated-nuchal-translucency-and-the-fetal-heart
#3
Trisha V Vigneswaran, Tessa Homfray, Lindsey D Allan, John M Simpson, Vita Zidere
We describe the outcome of fifteen cases with an elevated nuchal translucency (NT) which persisted into the second trimester as nuchal edema (NE) > 6 mm whom underwent fetal echocardiography. Cases were identified following retrospective review of cardiac and genetic findings with NE. Minor congenital heart disease was identified in 3/15 by the second trimester. Agenesis of the ductus venosus was evident in four. Pulmonary valve stenosis was diagnosed in one fetus at the 20-week scan and hypertrophic cardiomyopathy in one...
June 14, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28613398/fetal-and-umbilical-doppler-ultrasound-in-high-risk-pregnancies
#4
REVIEW
Zarko Alfirevic, Tamara Stampalija, Therese Dowswell
BACKGROUND: Abnormal blood flow patterns in fetal circulation detected by Doppler ultrasound may indicate poor fetal prognosis. It is also possible that false positive Doppler ultrasound findings could lead to adverse outcomes from unnecessary interventions, including preterm delivery. OBJECTIVES: The objective of this review was to assess the effects of Doppler ultrasound used to assess fetal well-being in high-risk pregnancies on obstetric care and fetal outcomes...
June 13, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28598448/fetal-ductus-venosus-pulsatility-index-and-diameter-during-second-and-third-trimester-of-gestation
#5
P Pokharel, M A Ansari
INTRODUCTION: The ductus venosus is a small funnel shaped vessel found posterior to the fetal liver connecting the intra-abdominal umbilical vein and the inferior vena cava. It is one of the three physiological shunts in the fetus. The main objective of this study is to construct the reference table and normogram for fetal ductus venosus Pulsatility Index and diameter with gestational age. METHODS: This was a prospective cross sectional study conducted during August 2011 to July 2012 taking 294 uncomplicated pregnancies using systemic random sampling method...
January 2017: JNMA; Journal of the Nepal Medical Association
https://www.readbyqxmd.com/read/28591361/doppler-velocimetry-in-fetal-rats-exposed-to-enoxaparin-and-unfractionated-heparin-ufh-during-pregnancy
#6
Flavio Renato de Almeida Senefonte, Ricardo Dutra Aydos, Vanessa Marcon de Oliveira, Marco Antonio Costa Bósio, Ernesto Antonio Figueiró-Filho
Purpose: To evaluate the effects of enoxaparin and unfractionated heparin (UFH) administered in prophylactic and therapeutic doses on fetal vessels in healthy pregnant Wistar rats, according to Doppler velocimetry measurements. Methods: Fifty animals were assigned to one of five groups: controls (saline), prophylactic and therapeutic enoxaparin (1 and 2 mg/kg/day, respectively), and prophylactic and therapeutic UFH (72 and 400 UI/kg/day, respectively). Uterine horns were examined by ultrasound for identification of live fetuses...
May 2017: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/28574580/echographic-features-and-perinatal-outcomes-in-fetuses-with-congenital-absence-of-ductus-venosus
#7
Raquel Garcia-Delgado, Raquel Garcia-Rodriguez, Azahar Romero Requejo, Marta Armas Roca, Luciana Obreros Zegarra, Margarita Medina Castellano, Jose A Garcia Hernandez
The purpose of this study was to describe the echographic features and perinatal outcomes of fetuses with absence of ductus venosus (ADV) MATERIAL AND METHODS: Retrospective review of 10 cases with ADV diagnosed by prenatal ultrasonography between January 2014 and February 2016 at a single referral center. Prenatal findings, umbilical shunting type, perinatal outcomes, and autopsy reports were reviewed RESULTS: A total of 11 491 fetuses underwent a first and second trimester screening during the study period...
June 2, 2017: Acta Obstetricia et Gynecologica Scandinavica
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
#8
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/28456373/book-genetics-for-obstetricians-and-gynaecologists-chapter-genetic-markers-on-ultrasound-scan
#9
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/28455084/recipient-umbilical-artery-elongation-redundancy-in-twin-twin-transfusion-syndrome
#10
Roopali Donepudi, Lovepreet K Mann, Christoph Wohlmuth, Anthony Johnson, Michael W Bebbington, Kenneth J Moise, David S Boudreaux, Helena Gardiner, Ramesha Papanna
BACKGROUND: Chronic hypertension in adults causes arterial lengthening in major arteries, but the effects of early fetal hypertension on the twin-twin transfusion syndrome recipient's vascular architecture remains unknown. OBJECTIVE: We hypothesize that arterial cord redundancy is related to recipient hypertension and subsequent heart failure. Our objectives were to: (1) establish a 3-dimensional color Doppler ultrasound method of measuring umbilical arterial length relative to its corresponding venous segment in the umbilical cord using artery vein angle; (2) compare recipient artery vein angle to gestational age-matched controls; and (3) test the association of artery vein angle with recipient heart failure...
April 25, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28433734/prospective-association-of-fetal-liver-blood-flow-at-30-weeks-gestation-with-newborn-adiposity
#11
Satoru Ikenoue, Feizal Waffarn, Masanao Ohashi, Kaeko Sumiyoshi, Chigusa Ikenoue, Claudia Buss, Daniel L Gillen, Hyagriv N Simhan, Sonja Entringer, Pathik D Wadhwa
BACKGROUND: The production of variation in adipose tissue accretion represents a key fetal adaptation to energy substrate availability during gestation. Because umbilical venous blood transports nutrient substrate from the maternal to the fetal compartment and because the fetal liver is the primary organ in which nutrient interconversion occurs, it has been proposed that variations in the relative distribution of umbilical venous blood flow shunting either through ductus venosus or perfusing the fetal liver represents a mechanism underlying this adaptation...
April 20, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28424441/spontaneous-echocardiographic-contrast-due-to-ductus-venosus
#12
İlker Ertuğrul, Vehbi Doğan, Senem Özgür, Utku Arman Örün, Selmin Karademir
Spontaneous echocardiographic contrast is defined as a phenomenon of discrete reflections appearing in the cardiac chambers or great vessels. It has been associated with several conditions leading to microbubble formation or low blood flow. This is a report of a neonate with spontaneous echocardiographic contrast related to patent ductus venosus.
March 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28403927/relevance-of-routine-doppler-sampling-at-the-two-umbilical-arteries-in-the-follow-up-of-dichorionic-twin-pregnancies-with-intrauterine-growth-restricted-fetuses
#13
A J Vivanti, E Lecarpentier, A-G Cordier, F Proulx, V Tsatsaris, A Benachi
OBJECTIVE: The aim of this study is to assess if the presence of bilateral absent or reverse end-diastolic velocity (AREDV) indicates a poorer prognosis than unilateral AREDV in dichorionic-diamniotic twin pregnancies complicated by intrauterine growth restriction. METHODS: A prospective observational study of 36 dichorionic-diamniotic twin pregnancies complicated by intrauterine growth restriction. One hundred and fifty seven ultrasound (US) examinations were performed...
March 2017: Journal of gynecology obstetrics and human reproduction
https://www.readbyqxmd.com/read/28345186/use-of-the-fetal-myocardial-performance-index-in-assessment-and-management-of-the-small-for-gestational-age-fetus-a-cohort-and-nested-case-control-study
#14
Amanda Henry, Jennifer Alphonse, Dominique Tynan, Alec W Welsh
OBJECTIVES: To assess the clinical utility of the fetal Myocardial Performance Index (MPI) in assessment and management of the fetus referred to Fetal Medicine services for Small for Gestational Age/Intrauterine Growth Restriction (SGA/IUGR). METHODS: Prospective cohort study in metropolitan Australia. Consenting patients referred at 24-38 weeks' gestation for suspected singleton SGA/IUGR (estimated fetal weight [EFW] <10(th) centile for gestation and/or abnormal umbilical artery [UA] Doppler) had MPI performed in addition to routine measures, and were followed through to birth...
March 27, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28295792/biventricular-impact-of-mild-to-moderate-pulmonary-valve-stenosis-in-fetal-life
#15
L Guirado, F Crispi, N Masoller, M Bennasar, E Marimon, J Carretero, E Gratacós, J M Martínez, M K Friedberg, O Gómez
OBJECTIVES: to define the pattern of fetal echocardiographic changes associated with isolated pulmonary valve stenosis (PS) and to correlate the echocardiographic findings with the neonatal outcome and the need of postnatal pulmonary valvuloplasty within the first 12 months of life. METHODS: a prospective cohort study was designed on 16 fetuses with isolated PS and 48 controls matched by gestational age at scan (+/- 2 weeks). Fetal standard ultrasound and comprehensive echocardiography, which included cardiovascular morphometric parameters, systolic and diastolic functional and timing-measurements, were performed in all cases...
March 10, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28295158/first-trimester-ultrasound-tests-alone-or-in-combination-with-first-trimester-serum-tests-for-down-s-syndrome-screening
#16
REVIEW
S Kate Alldred, Yemisi Takwoingi, Boliang Guo, Mary Pennant, Jonathan J Deeks, James P Neilson, Zarko Alfirevic
BACKGROUND: Down's syndrome occurs when a person has three, rather than two copies of chromosome 21; or the specific area of chromosome 21 implicated in causing Down's syndrome. It is the commonest congenital cause of mental disability and also leads to numerous metabolic and structural problems. It can be life-threatening, or lead to considerable ill health, although some individuals have only mild problems and can lead relatively normal lives. Having a baby with Down's syndrome is likely to have a significant impact on family life...
March 15, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28281301/doppler-assessment-of-patients-with-twin-to-twin-transfusion-syndrome-and-survival-following-fetoscopic-laser-surgery
#17
Enrique Gil Guevara, Andrea Pazos, Otilia Gonzalez, Pilar Carretero, Francisca S Molina
OBJECTIVE: To investigate fetal-survival rates following laser surgery for twin-to-twin transfusion syndrome (TTTS) and the impact of Doppler analysis. METHODS: The present retrospective single-center study included data from patients with pregnancies exhibiting TTTS treated with fetoscopic laser surgery between January 1, 2007, and December 31, 2016. Perinatal outcomes were examined and variables were compared between the donor and recipient fetuses that survived and died, respectively...
June 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28279117/progression-of-doppler-changes-in-early-onset-small-for-gestational-age-fetuses-how-frequent-are-the-different-progression-sequences
#18
José Morales-Roselló, Asma Khalil, Victoria Fornés-Ferrer, José Alberola-Rubio, David Hervas-Marín, Núria Peralta Llorens, Alfredo Perales-Marín
OBJECTIVE: To evaluate the progression of Doppler abnormalities in early-onset fetal smallness (SGA). METHODS: A total of 948 Doppler examinations of the umbilical artery (UA), middle cerebral artery (MCA) and ductus venosus (DV), belonging to 405 early-onset SGA fetuses, were studied, evaluating the sequences of Doppler progression, the interval examination-labor at which Doppler became abnormal and the cumulative sum of Doppler anomalies in relation with labor proximity...
March 27, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28254208/molecular-cytogenetic-characterization-of-jacobsen-syndrome-11q23-3-q25-deletion-in-a-fetus-associated-with-double-outlet-right-ventricle-hypoplastic-left-heart-syndrome-and-ductus-venosus-agenesis-on-prenatal-ultrasound
#19
Chih-Ping Chen, Liang-Kai Wang, Pei-Chen Wu, Tung-Yao Chang, Schu-Rern Chern, Peih-Shan Wu, Yen-Ni Chen, Shin-Wen Chen, Chen-Chi Lee, Chien-Wen Yang, Wayseen Wang
OBJECTIVE: We present molecular cytogenetic characterization of Jacobsen syndrome (11q23.3-q25 deletion) in a fetus associated with double outlet right ventricle (DORV), hypoplastic left heart syndrome (HLHS), and ductus venosus (DV) agenesis on prenatal ultrasound. CASE REPORT: A 26-year-old woman underwent prenatal ultrasound examination at 22 weeks of gestation, which revealed intrauterine growth restriction, short femurs, DORV, HLHS, DV agenesis, single umbilical artery, and curly fourth toe of the left foot...
February 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28182335/how-to-monitor-pregnancies-complicated-by-fetal-growth-restriction-and-delivery-before-32-weeks-post-hoc-analysis-of-truffle-study
#20
W Ganzevoort, N Mensing Van Charante, B Thilaganathan, F Prefumo, B Arabin, C M Bilardo, C Brezinka, J B Derks, A Diemert, J J Duvekot, E Ferrazzi, T Frusca, K Hecher, N Marlow, P Martinelli, E Ostermayer, A T Papageorghiou, D Schlembach, K T M Schneider, T Todros, A Valcamonico, G H A Visser, A Van Wassenaer-Leemhuis, C C Lees, H Wolf
OBJECTIVES: In the recent TRUFFLE study, it appeared that, in pregnancies complicated by fetal growth restriction (FGR) between 26 and 32 weeks' gestation, monitoring of the fetal ductus venosus (DV) waveform combined with computed cardiotocography (CTG) to determine timing of delivery increased the chance of infant survival without neurological impairment. However, concerns with the interpretation were raised, as DV monitoring appeared to be associated with a non-significant increase in fetal death, and some infants were delivered after 32 weeks, at which time the study protocol no longer applied...
June 2017: Ultrasound in Obstetrics & Gynecology
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