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Twin gestation

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https://www.readbyqxmd.com/read/29776396/delivery-of-the-second-twin-influence-of-presentation-on-neonatal-outcome-a-case-controlled-study
#1
Gerhard Bogner, Valentina Wallner, Claudius Fazelnia, Martina Strobl, Birgit Volgger, Thorsten Fischer, Volker R Jacobs
BACKGROUND: Spontaneous vaginal twin delivery after 32nd week of gestation is safe when first twin presenting cephalic. Aim of this study is to identify obstetric factors influencing the condition of second twin and to verify whether non-cephalic presentation and vaginal breech delivery of the second twin is safe. METHODS: This is a retrospective case controlled cohort study of 717 uncomplicated twin deliveries ≥32 + 0 weeks of gestation from 2005 to 2014 in two tertiary perinatal centers...
May 18, 2018: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/29775434/births-final-data-for-2016
#2
Joyce A Martin, Brady E Hamilton, Michelle J K Osterman, Anne K Driscoll, Patrick Drake
This report presents 2016 data on U.S. births according to a wide variety of characteristics. Trends in fertility patterns and maternal and infant characteristics are described and interpreted.Descriptive tabulations of data reported on the birth certificates of the 3.95 million births that occurred in 2016 are presented. Data are presented for maternal age, live-birth order, race and Hispanic origin, marital status, tobacco use, prenatal care, source of payment for the delivery, method of delivery, gestational age, birthweight, and plurality...
January 2018: National Vital Statistics Reports
https://www.readbyqxmd.com/read/29764452/risk-factors-for-korean-women-to-develop-an-isthmocele-after-a-cesarean-section
#3
I Y Park, M R Kim, H N Lee, Y Gen, M J Kim
BACKGROUND: The increase in number of cesarean section (CS) operations has resulted in an increase in cases of isthmocele development. The objective of this study is to determine the risk factors for isthmocele development after CS. METHODS: Isthmocele measurements were taken for 404 women with a history of at least one low transverse CS. The following potential risk factors were investigated: patient's age at CS, cause of CS, weeks of gestation at CS, premature rupture of membrane (PROM), phase of labor, type suture (single/double layer), operation time, uterine flexion (anteversion/retroversion), and blood transfusion during operation...
May 15, 2018: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/29759106/stage-specific-feed-intake-restriction-differentially-regulates-placental-traits-and-proteome-of-goats
#4
Qiongxian Yan, Juanzhi Xu, Xiaosong Wu, Dingding Su, Zhiliang Tan
A total of twenty-four healthy twin-bearing Liuyang black goats were allocated to two trials. In Trial 1, twelve goats received either the control diet (CG, n 6, 100 % feed) or restricted diet (RG, n 6, 60 % feed of CG) from gestation days 26 to 65 after synchronisation. In Trial 2, the remaining goats were randomly and equally divided into two treatments: CG and RG from days 95 to 125 of gestation. Placental traits, fetal weight, serum parameters, nitric oxide (NO), angiogenesis gene expression and cotyledon proteome were measured at the end of each trial...
May 2018: British Journal of Nutrition
https://www.readbyqxmd.com/read/29758532/evaluation-of-the-nova-vet-meter-for-sheep-side-monitoring-of-%C3%AE-hydroxybutyric-acid-bhba-and-description-of-ewe-bhba-during-late-gestation-in-three-flocks-from-the-northeastern-u-s
#5
Amanda K Jones, Rachael E Gately, Tasia D Kellogg, Steven A Zinn, Kristen E Govoni, Sarah A Reed
Prevention of metabolic diseases in small ruminants may improve production efficiency and profitability, yet ewes carrying multiples or who are in poor body condition are at increased susceptibility to develop ketosis. This study evaluated the hand-held Nova Vet Meter to accurately detect β-hydroxybutyric acid (BHBA) concentrations in ewes and determined the percentage of ewes at moderate (0.8 to 1.5 mmol/L BHBA) and greatest (≥1.6 mmol/L BHBA) risk to develop ketosis during late gestation. To validate the Nova Vet Meter, BHBA concentrations of 104 paired blood samples were measured using the Nova Vet Meter and gold-standard laboratory analysis...
May 7, 2018: Research in Veterinary Science
https://www.readbyqxmd.com/read/29753922/beckwith-wiedemann-syndrome-a-population-based-study-on-prevalence-prenatal-diagnosis-associated-anomalies-and-survival-in-europe
#6
Ingeborg Barisic, Ljubica Boban, Diana Akhmedzhanova, Jorieke E H Bergman, Clara Cavero-Carbonell, Ieva Grinfelde, Anna Materna-Kiryluk, Anna Latos-Bielenska, Hanitra Randrianaivo, Natalya Zymak-Zakutnya, Ivona Sansovic, Monica Lanzoni, Joan K Morris
Beckwith Wiedemann syndrome is a complex developmental disorder characterized by somatic overgrowth, macroglossia, abdominal wall defects, neonatal hypoglycemia, and predisposition to embryonal tumors. We present epidemiological and clinical aspects of patients with Beckwith Wiedemann syndrome diagnosed prenatally or in the early years of life, using data from EUROCAT (European Surveillance of Congenital Anomalies) registries. The study population consisted of 371 cases identified between January 1990 and December 2015 in 34 registries from 16 European countries...
May 10, 2018: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/29750375/the-ontario-birth-study-a-prospective-pregnancy-cohort-study-integrating-perinatal-research-into-clinical-care
#7
Laura N Anderson, Julia A Knight, Rayjean J Hung, Sheryl L Hewko, Ryan A Seeto, Mary-Jean Martin, Alison Fleming, Jonathon L Maguire, Stephen G Matthews, Kellie E Murphy, Nan Okun, Jennifer M Jenkins, Stephen J Lye, Alan Bocking
BACKGROUND: Pregnancy and early childhood represent critical periods that impact health throughout the life-course. The Ontario Birth Study (OBS) is a pregnancy cohort study designed as a platform for research on pregnancy complications, maternal and infant health, and the developmental origins of health and disease. METHODS: Pregnant women <17 weeks gestational age were recruited between 2013 and 2015 from antenatal clinics at Mount Sinai Hospital, Toronto, Canada...
May 11, 2018: Paediatric and Perinatal Epidemiology
https://www.readbyqxmd.com/read/29747266/-study-on-the-dynamic-variations-and-influencing-factors-of-serum-lipid-levels-during-pregnancy-and-postpartum
#8
D Xu, C Liang, L Chen, X D Wu, J He
Objective: To study the variations and influencing factors of serum triglycerides and cholesterol levels during pregnancy and postpartum. Methods: A retrospective study was performed among 5 020 healthy singleton (95.10%, 4 774/5 020) and twin (4.90%, 246/5 020) women who had delivery in Women's Hospital, Zhejiang University School of Medicine from January 2011 to December 2016. Serum triglycerides and cholesterol levels during pregnancy and postpartum of all the cases were collected. Both singleton and twin pregnant women were divided into advanced age and appropriate age groups, and then data of serum sample were assigned to 3 groups according to the gestation weeks, which were second trimester pregnancy (24-28 gestation weeks) , third trimester pregnancy (32-41 gestation weeks) and postpartum (within 72 hours after delivery) ...
April 25, 2018: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/29742661/delivery-of-the-nonpresenting-twin-first-rates-and-associated-factors
#9
Eran Weiner, Jon Barrett, Maya Ram, Hayley Lipworth, Yossi Mizrachi, Maayan Bas Lando, Nir Melamed
OBJECTIVE: To estimate the rate of delivery of the nonpresenting twin first and to identify risk factors for such an event by using a cohort of opposite-sex twins for whom the intrauterine order was well documented with ultrasonography before delivery. METHODS: We conducted a retrospective cohort study of all opposite-sex dichorionic twins in a single tertiary center between 2002 and 2016. Reports of ultrasonograms performed less than 2 weeks before birth were reviewed for information on twins' presenting order in relation to fetal sex...
May 7, 2018: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29742658/perinatal-and-peripartum-outcomes-in-vanishing-twin-pregnancies-achieved-by-in-vitro-fertilization
#10
Phillip A Romanski, Daniela A Carusi, Leslie V Farland, Stacey A Missmer, Daniel J Kaser, Brian W Walsh, Catherine Racowsky, Paula C Brady
OBJECTIVE: To compare perinatal and peripartum outcomes of vanishing twin gestations with singleton and dichorionic twin gestations in pregnancies conceived by in vitro fertilization. METHODS: We conducted a retrospective cohort study of vanishing twin pregnancies after fresh and cryopreserved autologous in vitro fertilization cycles performed at our institution from 2007 to 2015. Singleton, dichorionic twin, and dichorionic twin pregnancies with spontaneous reduction to one by 14 weeks of gestation (vanishing twins) were included...
May 7, 2018: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29740832/perinatal-outcomes-of-single-fetal-survivor-after-fetal-intervention-for-complicated-monochorionic-twins
#11
Mallory Hoffman, Mounira Habli, Roopali Donepudi, Noemi Boring, Anthony Johnson, Kenneth J Moise, Ramesha Papanna
OBJECTIVE: To compare perinatal outcomes between acute single fetal demise following FLP to planned selective reduction (SR) in complicated monochorionic (MC) twin pregnancies. METHODS: This was a secondary analysis of prospectively collected data in complicated MC twin pregnancies from two fetal centers from 2011-2016. Group 1 included women undergoing FLP for TTTS who experienced a single fetal demise within 24 hours of the procedure. Group 2 consisted of women undergoing planned SR with TTTS, and Group 3 SR for indications other than TTTS...
May 9, 2018: Prenatal Diagnosis
https://www.readbyqxmd.com/read/29740100/genetic-and-environmental-influences-on-fetal-growth-vary-during-sensitive-periods-in-pregnancy
#12
Tsegaselassie Workalemahu, Katherine L Grantz, Jagteshwar Grewal, Cuilin Zhang, Germaine M Buck Louis, Fasil Tekola-Ayele
Aberrant fetal growth is associated with morbidities and mortality during childhood and adult life. Although genetic and environmental factors are known to influence in utero growth, their relative contributions over pregnancy is unknown. We estimated, across gestation, the genetic heritability, contribution of shared environment, and genetic correlations of fetal growth measures (abdominal circumference (AC), humerus length (HL), femur length (FL), and estimated fetal weight (EFW)) in a prospective cohort of dichorionic twin gestations recruited through the NICHD Fetal Growth Studies...
May 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29734407/effect-of-developmental-stage-of-embryos-at-freezing-on-live-birth-outcomes-after-frozen-embryo-transfer
#13
X J Zhang, Q Lv, L H Min, X H Cao, X J Li
  Purpose Our objective was to evaluate the birth outcomes of FET from different developmental stage of embryo at freezing (Day 3, Day 5 and Day 6). Methods All vitrified-warmed day 3 (D3) and day 5/6 (D5, D6) embryo transfers during the time period from January 2013 until December 2015 were included in the study. The Birthweight, Low birthweight (LBW), sexual distinction, gestation and for singleton births and twins conceived by FET were compared retrospectively between three cryopreservation strategies utilizing either D3, D5 or D6 embryo freezing...
September 2017: Cryo Letters
https://www.readbyqxmd.com/read/29730993/outcome-of-twin-pregnancies-complicated-by-a-neural-tube-defect
#14
Vanessa Ross, Karen Reidy, Lex W Doyle, Ricardo Palma-Dias, Mark P Umstad
Twin pregnancies discordant for neural tube defects (NTD) is a management dilemma. Risks of preterm delivery from polyhydramnios must be balanced with the risks of selective termination (ST) of the anomalous fetus. We investigated the prevalence of twin pregnancies discordant for NTD and the rate of pregnancy complications in our institution over a 10-year period. Cases were obtained by searching the hospital ultrasound database and findings were confirmed by expert review of ultrasound images. Outcomes of ST and expectant management were assessed...
May 7, 2018: Twin Research and Human Genetics: the Official Journal of the International Society for Twin Studies
https://www.readbyqxmd.com/read/29723347/type-ii-and-iii-selective-fetal-growth-restriction-perinatal-outcomes-of-expectant-management-and-laser-ablation-of-placental-vessels
#15
Mariana Yumi Miyadahira, Maria de Lourdes Brizot, Mário Henrique Burlacchini de Carvalho, Sckarlet Ernandes Biancolin, Rita de Cássia Alam Machado, Vera Lúcia Jornada Krebs, Rossana Pulcineli Vieira Francisco, Cleisson Fábio Andrioli Peralta
OBJECTIVES: To describe the perinatal outcomes of type II and III selective fetal growth restriction (sFGR) in monochorionic-diamniotic (MCDA) twin pregnancies treated with expectant management or laser ablation of placental vessels (LAPV). METHODS: Retrospective analysis of cases of sFGR that received expectant management (type II, n=6; type III, n=22) or LAPV (type II, n=30; type III, n=9). The main outcomes were gestational age at delivery and survival rate. RESULTS: The smaller fetus presented an absent/reversed "a" wave in the ductus venosus (arAWDV) in all LAPV cases, while none of the expectant management cases presented arAWDV...
2018: Clinics
https://www.readbyqxmd.com/read/29713738/fetal-median-sacral-artery-anatomy-study-by-micro-ct-imaging
#16
P Meignan, A Binet, A R Cook, H Lardy, G Captier
PURPOSE: The median sacral artery (MSA) is the termination of the dorsal aorta, which undergoes a complex regression and remodeling process during embryo and fetal development. The MSA contributes to the pelvic vascularization and may be injured during pelvic surgery. The embryological steps of MSA development, anastomosis formation and anatomical variations are linked, but not fully understood. METHODS: The pelvic vascularization and more precisely the MSA of a human fetus at 22 weeks of gestation (GW) were studied using micro-CT imaging...
April 30, 2018: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29709428/developmental-outcome-in-a-group-of-twins-relation-to-perinatal-factors-and-general-movements
#17
Tamara Dostanic, Breda Sustersic, Darja Paro-Panjan
BACKGROUND: The quality of general movements (GMs) has proven to have predictive value for the developmental outcome, but this has not yet been studied in twins. AIMS: Our aim was to analyse the quality of GMs and neurological and developmental outcome in relation to the gestational age (GA), mode of conception and other perinatal risk factors in a group of twins. STUDY DESIGN: The documentation of twins referred for follow-up in the period from 1998 to 2016 was studied retrospectively...
April 20, 2018: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/29704280/prediction-of-adverse-pregnancy-outcome-in-monochorionic-diamniotic-twin-pregnancies-complicated-by-selective-fetal-growth-restriction
#18
Caitriona Monaghan, Erkan Kalafat, Julia Binder, Baskaran Thilaganathan, Asma Khalil
OBJECTIVE: To identify key factors implicated in adverse perinatal outcome in monochorionic twin pregnancies complicated by selective fetal growth restriction. METHODS: This is a retrospective cohort study conducted in a single tertiary referral centre included all monochorionic diamniotic (MCDA) twin pregnancies complicated by selective fetal growth restriction (sFGR). The presence of co-existing twin to twin transfusion syndrome (TTTS) was noted. Fetal biometry and Doppler indices, including the umbilical artery (UA) and ductus venosus (DV), were recorded at the time of diagnosis...
April 28, 2018: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29694819/prenatal-correction-of-x-linked-hypohidrotic-ectodermal-dysplasia
#19
Holm Schneider, Florian Faschingbauer, Sonia Schuepbach-Mallepell, Iris Körber, Sigrun Wohlfart, Angela Dick, Mandy Wahlbuhl, Christine Kowalczyk-Quintas, Michele Vigolo, Neil Kirby, Corinna Tannert, Oliver Rompel, Wolfgang Rascher, Matthias W Beckmann, Pascal Schneider
Genetic deficiency of ectodysplasin A (EDA) causes X-linked hypohidrotic ectodermal dysplasia (XLHED), in which the development of sweat glands is irreversibly impaired, an condition that can lead to life-threatening hyperthermia. We observed normal development of mouse fetuses with Eda mutations after they had been exposed in utero to a recombinant protein that includes the receptor-binding domain of EDA. We administered this protein intraamniotically to two affected human twins at gestational weeks 26 and 31 and to a single affected human fetus at gestational week 26; the infants, born in week 33 (twins) and week 39 (singleton), were able to sweat normally, and XLHED-related illness had not developed by 14 to 22 months of age...
April 26, 2018: New England Journal of Medicine
https://www.readbyqxmd.com/read/29693547/the-role-of-clinical-factors-in-the-association-of-gestational-diabetes-amongst-women-aged-15-49-years-residing-in-yazd-iran
#20
Mohammad Hasan Lotfi, Hossein Fallahzadeh, Masoud Rahmanian, Hossein Lashkardoost, Andishe Hamedi
BACKGROUND: Gestational diabetes mellitus (GDM) has occurred in Fourteen percent of all pregnancies in the world. Epidemiological evidences about risk factors of GDM may be different from region to region and are unknown, exactly. This study examines the role of clinical factors in the association of gestational diabetes in Yazd, Iran. METHODS: This study was carried out on 168 women with gestational diabetes and 168 women as controls after matching for age and place of residence...
April 16, 2018: Diabetes & Metabolic Syndrome
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