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Twin gestation

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https://www.readbyqxmd.com/read/28210482/delayed-interval-delivery-can-save-the-second-twin-evidence-from-a-systematic-review
#1
REVIEW
S Feys, Y Jacquemyn
BACKGROUND: In case of preterm birth in twins, it is not well established if the second twin benefits from a delayed-interval delivery. OBJECTIVE: The main objective of this systematic review is to evaluate survival benefit of the second twin from delayed interval delivery compared to the first twin. Secondly, we will evaluate the survival benefit of the procedure when performed equal to or after 24 weeks gestational age of the first born. METHODS: Delayed interval delivery was defined as every attempt to perform a delayed interval delivery with at minimum placement of a high ligature of the umbilical cord and a delay of delivery of at least 24 hours...
December 2016: Facts, Views & Vision in ObGyn
https://www.readbyqxmd.com/read/28210479/pregnant-after-assisted-reproduction-a-risk-pregnancy-is-born-18-years-perinatal-outcome-results-from-a-population-based-registry-in-flanders-belgium
#2
W Ombelet, G Martens, L Bruckers
BACKGROUND: Although the increased risk for perinatal morbidity and mortality of babies born after ART is largely attributed to a higher rate of multiple gestations, a significantly worse perinatal outcome for singleton pregnancies following ART compared to pregnancies after natural conception has been reported as well. Most studies only include IVF/ICSI pregnancies; studies describing the perinatal outcome of pregnancies after non-IVF assisted reproduction are scarce. METHODS AND MATERIALS: Population-based cohort study with three exposure groups: a study group of pregnancies (1) after ovarian stimulation (OS), with or without artificial insemination (AI), (2) after IFV or ICSI and (3) a naturally conceived (NC) comparison group...
December 2016: Facts, Views & Vision in ObGyn
https://www.readbyqxmd.com/read/28208945/perinatal-outcome-of-second-twin-with-respect-to-mode-of-delivery-an-observational-study
#3
Rujul Rashmin Jhaveri, Trupti K Nadkarni
INTRODUCTION: With the advent of assisted reproductive techniques, multi-fetal pregnancies are on the rise. While caesarean section is the defined mode of delivery for triplets and higher order pregnancies, the picture for twin delivery is not so clear. While a trial for vaginal delivery is attempted, the second twin is considered vulnerable to complications. Whether this translates into worsened perinatal outcomes is not well defined. AIM: To study the perinatal outcome and to identify the various factors influencing the perinatal outcome of second twin with respect to mode of delivery...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28202184/high-prevalence-of-same-sex-twins-in-patients-with-cloacal-exstrophy-support-for-embryological-association-with-monozygotic-twinning
#4
Brenna S Fullerton, Eric A Sparks, Amber M Hall, Cristine S Velazco, Biren P Modi, Dennis P Lund, Tom Jaksic, W Hardy Hendren
PURPOSE: Previous studies have hypothesized that cloacal exstrophy may be caused by errors early in embryological development related to monozygotic twinning. This study reports the prevalence of twins in a large cohort of patients with cloacal exstrophy. METHODS: Patients with cloacal exstrophy treated 1974-2015 were reviewed for reports of multiple gestation or conjoined twinning. The genetic sex of the patient and their twin, and any mention of anomaly in the twin were recorded...
January 30, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28193317/identification-of-differentially-expressed-placental-transcripts-during-multiple-gestations-in-the-eurasian-beaver-castor-fiber-l
#5
A Lipka, L Paukszto, M Majewska, J P Jastrzebski, K Myszczynski, G Panasiewicz, B Szafranska
The Eurasian beaver is one of the largest rodents that, despite its high impact on the environment, is a non-model species that lacks a reference genome. Characterising genes critical for pregnancy outcome can serve as a basis for identifying mechanisms underlying effective reproduction, which is required for the success of endangered species conservation programs. In the present study, high-throughput RNA sequencing (RNA-seq) was used to analyse global changes in the Castor fiber subplacenta transcriptome during multiple pregnancy...
February 14, 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/28186636/triplet-pregnancy-from-the-transfer-of-two-blastocysts-demonstrating-a-twin-reversed-arterial-perfusion-sequence-with-a-conjoined-twins-pump-fetus
#6
Hongxia Yuan, Qichang Zhou, Jing Li, Shi Zeng
The incidence of monochorionic gestation is increased eight-fold following assisted reproductive techniques [1]. Monochorionic triplet pregnancies are rare, occurring in 1 in 45 500 deliveries [2], and are associated with high mortality and morbidity. Both conjoined twins and the twin reversed arterial perfusion (TRAP) sequence are unique complications of monochorionic pregnancy. The present study describes transvaginal ultrasonography findings from a monochorionic diamniotic triplet pregnancy at 10 weeks of gestation following double embryo transfer; a TRAP sequence, with a pair of conjoined twins as a "pump" fetus was identified...
February 10, 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28185120/-one-for-sorrow-two-for-joy-american-embryo-transfer-guideline-recommendations-practices-and-outcomes-for-gestational-surrogate-patients
#7
REVIEW
Pamela M White
In January 2016, Melissa Cook, a California gestational surrogate experiencing a multiple-birth pregnancy following the in vitro fertilization (IVF) transfer of three embryos comprised of donor eggs and sperm provided by the intended father, went to the media when the intended father requested that she undergo a fetal reduction because twins were less expensive to raise than triplets. Much of the legal interest in this case to date has centered on the enforceability of surrogacy contracts. However, the Cook case also raises troubling issues about fertility treatment practices involving gestational surrogates, twin preference, and third-party reproduction medical decision-making...
February 9, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28182768/clinical-validation-of-a-model-predicting-the-risk-of-preterm-delivery
#8
Yohann Dabi, Sophie Nedellec, Claire Bonneau, Blandine Trouchard, Roman Rouzier, Alexandra Benachi
OBJECTIVES: To validate a model predicting the risk of threatened preterm delivery and to establish the optimal threshold for this risk scoring system. MATERIALS AND METHODS: Two cohorts were studied: one of singleton pregnancies without preterm premature rupture of membranes (PPROM) and no cervical cerclage (cohort 1) and one of twin pregnancies without PPROM and no cervical cerclage (cohort 2). Patients were included from January 1st 2013 until December 31st 2013 by the Regional Perinatal Network of Ile de France with patients transferred because of threatened preterm delivery at 22 to 32 weeks of gestation...
2017: PloS One
https://www.readbyqxmd.com/read/28177372/factors-affecting-fecal-egg-counts-in-periparturient-katahdin-ewes-and-their-lambs
#9
D R Notter, J M Burke, J E Miller, J L M Morgan
Selection for low fecal egg counts (FEC) can be used to genetically enhance resistance to gastrointestinal nematode parasites in growing lambs, thereby reducing the frequency of use of anthelmintics, facilitating marketing of organic lamb, and reducing the risk of development of anthelmintic resistance by the parasite. Recording of FEC in lambs has, therefore, been incorporated into several national sheep genetic evaluation programs. Ewes in late gestation and early lactation are also vulnerable to parasite infection and commonly experience a periparturient rise in FEC...
January 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28176485/preterm-birth-prevention-in-twin-pregnancies-with-progesterone-pessary-or-cerclage-a-systematic-review-and-meta-analysis
#10
REVIEW
A Jarde, O Lutsiv, C K Park, J Barrett, J Beyene, S Saito, J M Dodd, P S Shah, J L Cook, A B Biringer, L Giglia, Z Han, K Staub, W Mundle, C Vera, L Sabatino, S K Liyanage, S D McDonald
BACKGROUND: About half of twin pregnancies deliver preterm, and it is unclear whether any intervention reduces this risk. OBJECTIVES: To assess the evidence for the effectiveness of progesterone, cerclage, and pessary in twin pregnancies. SEARCH STRATEGY: We searched Medline, EMBASE, CINAHL, Cochrane Central Register of Controlled Trials, and ISI Web of Science, without language restrictions, up to 25 January 2016. SELECTION CRITERIA: Randomised controlled trials of progesterone, cerclage, or pessary for preventing preterm birth in women with twin pregnancies, without symptoms of threatened preterm labour...
February 8, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28174536/exploring-the-pharmacokinetic-profile-of-remifentanil-in-mid-trimester-gestations-undergoing-fetal-intervention-procedures
#11
Judith A Smith, Roopali V Donepudi, Pedro S Argoti, Anita L Giezentanner, Ranu Jain, Noemi Boring, Elisa Garcia, Kenneth J Moise
Background: Indications for surgery during pregnancy have increased. Specifically fetal interventions have increased from conditions that were considered lethal like twin-twin transfusion syndrome and severe fetal anemia to non-lethal conditions like myelomeningocele. The optimal anesthetic agent for in utero surgery is yet to be determined. Success of the procedure is often dictated by the efficacy of the anesthetic to immobilize the fetus without over-sedating mom. Remifentanil is used as preferred agent due to its short half-life however pharmacokinetics in pregnancy is unknown...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28170117/prevention-of-preterm-birth-with-pessary-in-twins-poppt-a-randomized-controlled-trial
#12
Vincenzo Berghella, Lorraine Dugoff, Jack Ludmir
OBJECTIVES: To evaluate if cervical pessary placement prevents PTB in twin gestations with a short midtrimester transvaginal ultrasound (TVU) cervical length (CL). METHODS: Multicenter randomized controlled trial of asymptomatic women with twin gestations with a TVU CL ≤30 mm at 18(0) -27(6) weeks. TVU CL screening was performed at the time of the anatomy scan at 18(0) -23(6) , and at subsequent scheduled ultrasounds prior to 28 weeks. Women with a TVU CL ≤30 mm at 18(0) -27(6) weeks were randomized to receive the Bioteque cup cervical pessary or no pessary...
February 7, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28168654/worldwide-prevalence-of-adverse-pregnancy-outcomes-associated-with-in-vitro-fertilization-intracytoplasmic-sperm-injection-among-multiple-births-a-systematic-review-and-meta-analysis-based-on-cohort-studies
#13
REVIEW
Jia-Bi Qin, Xiao-Qi Sheng, Hua Wang, Guo-Chong Chen, Jing Yang, Hong Yu, Tu-Bao Yang
PURPOSE: To perform a systematic review and meta-analysis of reported estimates of adverse pregnancy outcomes among multiple births conceived with in vitro fertilization (IVF)/intracytoplasmic sperm injection (ICSI). METHODS: PubMed, Google Scholar, Cochrane Libraries and Chinese databases were searched through May 2016 for cohort studies assessing adverse pregnancy outcomes associated with IVF/ICSI multiple births. Random-effects meta-analyses were used to calculate pooled estimates of adverse pregnancy outcomes and, where appropriate, heterogeneity was explored in group-specific analyses...
February 6, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28166660/population-based-study-on-antenatal-corticosteroid-treatment-in-preterm-small-for-gestational-age-and-non-small-for-gestational-age-twin-infants
#14
Shlomit Riskin-Mashiah, Brian Reichman, David Bader, Amir Kugelman, Valentina Boyko, Liat Lerner-Geva, Arieh Riskin
OBJECTIVES: To assess the associations between antenatal corticosteroid use (ACU), mortality and severe morbidities in preterm, twin neonates and compare these between small for gestational-age (SGA) and non-SGA twins. MATERIALS AND METHODS: Population-based study using data collected by the Israel National Very Low Birth Weight infant database from 1995-2012, comprising twin infants of 24-31 weeks' gestation, without major malformations. Univariate and multivariable logistic regression analyses were performed...
February 6, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28164073/perinatal-factors-associated-with-neonatal-thyroid-stimulating-hormone-in-normal-newborns
#15
Seong Yong Lee
PURPOSE: This study was to evaluate the effect of neonatal, maternal, and delivery factors on neonatal thyroid-stimulating hormone (TSH) of healthy newborns. METHODS: Medical records of 705 healthy infants born through normal vaginal delivery were reviewed. Neonatal TSH levels obtained by neonatal screening tests were analyzed in relation to perinatal factors and any associations with free thyroxine (FT4) and 17-α hydroxyprogesterone (17OHP) levels. RESULTS: An inverse relationship was found between TSH and sampling time after birth...
December 2016: Annals of Pediatric Endocrinology & Metabolism
https://www.readbyqxmd.com/read/28163434/aortic-and-pulmonary-artery-calcification-an-unusual-manifestation-of-twin-to-twin-transfusion-syndrome
#16
Sumitra Venkatesh, J Sanyukta, S Jain, S S Prabhu, S Kulkarni
Twin-to-twin transfusion syndrome (TTTS) at times complicates monochorionic twin gestations, resulting in conditions ranging from discordant sizes to fetal demise of one baby. Various types of cardiac defects have been described in the recipient twin of this syndrome. Isolated great artery calcification, i.e. aortic and pulmonary artery calcification is one such uncommon condition associated with TTTS. Calcification of the walls of great vessels may be due to chronic vascular injury sustained as a result of circulatory volume overload in the recipient twin...
January 2017: Annals of Pediatric Cardiology
https://www.readbyqxmd.com/read/28152279/pulmonary-vein-stenosis-of-ex-premature-infants-with-pulmonary-hypertension-and-bronchopulmonary-dysplasia-epidemiology-and-survival-from-a-multicenter-cohort
#17
Linda Mahgoub, Tarek Kaddoura, A Rebecca Kameny, Paloma Lopez Ortego, Rachel D Vanderlaan, Ashok Kakadekar, Frank Dicke, Ivan Rebeyka, Christopher A Calderone, Andrew Redington, Maria Jesus Del Cerro, Jeff Fineman, Ian Adatia
BACKGROUND: Pulmonary vein stenosis is emerging as an important clinical problem in ex-premature infants. METHODS: We sought to describe the epidemiology of pulmonary vein stenosis affecting ex-premature infants by a multicenter retrospective cohort study of patients from seven children's hospitals diagnosed between 2000-2014. RESULTS: We identified 39 ex-premature patients (26 males, median gestational age 28 weeks range 22-36 weeks, birth weight 1...
February 2, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28150444/the-influence-of-chorionicity-and-gestational-age-at-single-fetal-loss-on-the-risk-of-preterm-birth-in-twin-pregnancies-analysis-of-the-stork-multiple-pregnancy-cohort
#18
Francesco D'Antonio, Basky Thilaganathan, Tiran Dias, Asma Khalil
BACKGROUND: Single intrauterine death (sIUD) in twin pregnancies is associated with a significant risk of co-twin demise and preterm birth (PTB), especially in monochorionic (MC) twins. However, it is yet to be established whether the gestational age at loss may influence the pregnancy outcome. The aim of this study was to explore the risk of PTB according to the gestational age at the diagnosis of sIUD. METHODS: A cohort study of all twin pregnancies from a large regional network of 9 hospitals over a ten-year period...
February 2, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28141940/are-early-pregnancy-complications-more-common-in-women-with-hyperemesis-gravidarum
#19
Sinead R Morgan, Lisa Long, Jemma Johns, Chloe Angwin, Supriya Maitra, Jackie A Ross
Ultrasound evaluation is usually requested for women presenting with hyperemesis gravidarum (HG) in early pregnancy. This is to check viability as well as to diagnose multiple pregnancies and exclude gestational trophoblastic disease (GTD). The aim of this retrospective case control study was to evaluate the early pregnancy outcomes in women with HG and to compare them with an asymptomatic control group. 790 women referred with HG between 2002 and 2014 were matched for gestational age and maternal age with an asymptomatic patient attending for a reassurance or dating scan...
January 31, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28141714/developmental-coordination-disorder-plus-a-diagnosis-by-exclusion
#20
Jodi Santosuosso, Kristin Strand, Brooke B Surran, N Paul Rosman, Marilyn Augustyn
Cayden is a 6.3-year-old boy who you have been following in our practice since birth. He was born at 35.5 weeks at 6 pounds 4 ounces following a fraternal twin gestation. Both children were "on target" with their milestones, but Cayden did not seem to progress as quickly as his sister. He did not initiate play with his sister when they were toddlers and Cayden was the "shy" one.
February 2017: Journal of Developmental and Behavioral Pediatrics: JDBP
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