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Twin pregnancies

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https://www.readbyqxmd.com/read/29166472/congenital-zika-virus-infection-in-twin-pregnancies
#1
Beuy Joob, Viroj Wiwanitkit
No abstract text is available yet for this article.
October 2017: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/29166263/effects-of-melatonin-implantation-on-the-fertility-potentials-of-kivircik-and-charollais-ewes-and-rams-during-the-non-breeding-season
#2
M Cevik, C Yilmazer, A Kocyigit
This study examined the effect of melatonin implantation during the non-breeding season on the reproductive performance of ewes and the testicular dimensions of rams. In seasonally anestrus Kivircik and Charollais ewes and rams were subjected to melatonin. Estrus response was significantly higher in treated than control ewes of both breeds (p<0.001). The pregnancy rate was significantly lower (p<0.001) in the control than in the treated animals. The twinning rate was significantly lower in melatonin implanted Kivircik than Charollais ewes (p<0...
September 26, 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/29155475/weight-discordance-and-perinatal-mortality-in-twin-pregnancies-a-systematic-review-and-meta-analysis
#3
REVIEW
Francesco D'Antonio, Anthony O Odibo, Federico Prefumo, Asma Khalil, Danilo Buca, Maria Elena Flacco, Marco Liberati, Lamberto Manzoli, Ganesh Acharya
OBJECTIVES: The primary aim of this systematic review was to explore the strength of association between birthweight (BW) discordance and perinatal mortality in twin pregnancies; the secondary aim was to ascertain the contribution of gestational age and growth restriction in determining mortality in growth discordant twins. METHODS: Medline, Embase, Cinahl and Clinicaltrials.gov databases were searched. Only studies reporting the risk of mortality in twin pregnancies affected compared to those not affected by weight discordance were included...
November 20, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29153672/an-intermediate-sflt-1-plgf-ratio-indicates-an-increased-risk-for-adverse-pregnancy-outcome
#4
Janine Hoffmann, Victoria Ossada, Marie Weber, Holger Stepan
OBJECTIVE: The sFlt-1/PlGF ratio is a valid marker in diagnosing or excluding preeclampsia. The currently used cut offs frame an intermediate zone of 33-85 (<34(0) weeks) or 33-110 (≥34(0) weeks), respectively. In this study we sought to evaluate the relevance of an intermediate sFlt-1/PlGF ratio for the clinical pregnancy course and outcome. MATERIAL AND METHODS: We retrospectively analysed 533 consecutive patients with sFlt-1/PlGF ratio measurements for suspected preeclampsia...
October 2017: Pregnancy Hypertension
https://www.readbyqxmd.com/read/29153312/discordant-intrauterine-transfusion-in-dichorionic-twin-pregnancy-with-rh-isoimmunization
#5
Jing Wu, Lin-Huan Huang, Yan-Min Luo, Qun Fang
Discordant intrauterine transfusion (IUT) in twin pregnancy with Rh isoimmunization is uncommon and complicated. We report a gravida 3, para 2 woman with a dichorionic diamniotic (DCDA) twin pregnancy and two fetuses received discordant transfusions. Middle cerebral artery peak systolic velocity (MCA-PSV) was used to evaluate the anemic degree in each foetus. IUT was performed 3 times in twin A and 4 times in twin B to reverse foetal anaemia. Transfusions were distinct due to the different tolerance to IUT, and the procedure could be continued in one foetus even if the other one underwent complications...
November 7, 2017: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/29152887/association-between-maternal-sleep-practices-and-late-stillbirth-findings-from-a-stillbirth-case-control-study
#6
Aep Heazell, M Li, J Budd, Jmd Thompson, T Stacey, R S Cronin, B Martin, D Roberts, E A Mitchell, Lme McCowan
OBJECTIVE: To report maternal sleep practices in women who experienced a stillbirth compared with controls with ongoing live pregnancies at similar gestation. DESIGN: Prospective case-control study. SETTING: Forty-one maternity units in the United Kingdom. POPULATION: Women who had a stillbirth after ≥ 28 weeks' gestation (n = 291) and women with an ongoing pregnancy at the time of interview (n = 733). METHODS: Data were collected using an interviewer-administered questionnaire that included questions on maternal sleep practices before pregnancy, in the four weeks prior to, and on the night before the interview/stillbirth...
November 20, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/29146097/descriptive-study-of-current-therapeutic-practices-clinical-reproductive-findings-and-incidence-of-pregnancy-loss-in-intensively-managed-thoroughbred-mares
#7
B V Rose, M Firth, B Morris, J M Roach, D C Wathes, K L P Verheyen, A M de Mestre
Therapeutic practices in equine reproductive medicine have dramatically evolved over the last 20 years but current usage is not described. The aims of this study were to provide a description of medication use and clinical findings of reproductive examinations alongside measures of reproductive efficiency in thoroughbreds. A prospective cohort study was conducted in the 2013 and 2014 breeding seasons. Mare and stallion details, information on veterinary interventions and findings of reproductive ultrasound scans were collected using questionnaires and entered into a custom-designed Microsoft Access database...
November 10, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/29142885/successful-glycemic-control-using-a-flash-glucose-monitoring-system-for-a-pregnant-woman-with-diabetes-a-case-report
#8
Miyako Kishimoto, Saori Tamada, Yoko Oshiba
Background: Glucose control for pregnant women with glucose intolerance is important, as hyperglycemia may adversely affect the mother and the fetus. Case presentation: We report the case of a pregnant Japanese woman who experienced gestational diabetes mellitus during her first pregnancy and developed impaired glucose tolerance after the delivery. During her second pregnancy with twins, she required up to 75 units of injected insulin to control her postprandial hyperglycemia and occasionally experienced hypoglycemia...
2017: Journal of Diabetes and Metabolic Disorders
https://www.readbyqxmd.com/read/29142449/single-blastocyst-transfer-the-key-to-reduce-multiple-pregnancy-rates-without-compromising-the-live-birth-rate
#9
Uma M Sundhararaj, Monali V Madne, Reeta Biliangady, Sumana Gurunath, Ambika G Swamy, Indu S T Gopal
Background: Historically, to achieve higher pregnancy rates, multiple embryos were transferred after an in-vitro fertilisation (IVF). However, this practice is being reassessed, because it leads to multiple pregnancies that is known to cause adverse maternal and fetal outcomes. Aim: To compare the pregnancy outcomes in fresh IVF or intracytoplasmic sperm injection (ICSI) cycles among women undergoing elective single blastocyst transfer (eSBT) vs. those undergoing double blastocyst transfer (DBT)...
July 2017: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/29122542/twin-twin-transfusion-syndrome-what-we-have-learned-from-clinical-trials
#10
REVIEW
Fatiha Djaafri, Julien Stirnemann, Imen Mediouni, Claire Colmant, Yves Ville
Monochorionic twin pregnancies are at increased risk for adverse outcome compared to dichorionic twin pregnancies and singletons. Monochorionic-specific complications include twin-twin transfusion syndrome (TTTS), twin anemia-polycythemia sequence, single intrauterine fetal demise and its consequences on the co-twin, and selective intrauterine growth restriction. Whereas the natural history of monochorionic-specific complications carries a high risk of fetal death or severe neurologic disability, a framework now exists, based on well-designed clinical trials, for optimal treatment of these entities...
November 6, 2017: Seminars in Fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29117757/the-effect-of-prenatal-vaginal-progesterone-on-cervical-length-in-twin-pregnancies
#11
Isabela K R Agra, Mário H B Carvalho, Wagner R Hernandez, Rossana P V Francisco, Marcelo Zugaib, Maria L Brizot
PURPOSE: The aim of this study was to investigate the influence of vaginal progesterone on cervical length in asymptomatic nonselected twin gestations. METHODS: This was a secondary analysis of a randomized, double-blind, placebo-controlled trial of twin pregnancies exposed to vaginal progesterone or placebo. The cervical length was examined at six different time periods: 18-21(+6) weeks (T1), 21-23(+6) weeks (T2), 24-26(+6) weeks (T3), 27-29(+6) weeks (T4), 30-32(+6) weeks (T5) and 33-34(+6) weeks (T6)...
November 8, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29117383/assisted-reproductive-technology-in-europe-2013-results-generated-from-european-registers-by-eshre
#12
C Calhaz-Jorge, C De Geyter, M S Kupka, J de Mouzon, K Erb, E Mocanu, T Motrenko, G Scaravelli, C Wyns, V Goossens
STUDY QUESTION: Are there any changes in the treatments involving ART and IUI initiated in Europe during 2013 compared with previous years? SUMMARY ANSWER: An increase in the overall number of ART cycles resulting from a higher number of countries reporting data was evident, the pregnancy rates (PRs) in 2013 remained stable compared with those reported in 2012, the number of transfers with multiple embryos (3+) was lower than ever before yet the multiple delivery rates (DRs) remained unchanged, and IUI activity and success rates were similar to those of last years...
October 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29116935/outcomes-of-physical-examination-indicated-cerclage-in-twin-pregnancies-with-acute-cervical-insufficiency-compared-to-singleton-pregnancies
#13
Jee Yoon Park, Soo-Hyun Cho, Se Jeong Jeon, Song Yi Kook, Hyunsoo Park, Kyung Joon Oh, Joon-Seok Hong
OBJECTIVES: To compare pregnancy outcomes of physical examination-indicated cerclage in twin pregnancies with acute cervical insufficiency with that of singletons. METHODS: This retrospective cohort study included 88 consecutive women (17 twins and 71 singletons) who had undergone physical examination-indicated cerclage because of acute cervical insufficiency (defined as painless cervical dilation with (1) prolapsed and/or visible membranes at the external cervical os on speculum examination and (2) a functional cervical length of zero on transvaginal ultrasound) between 160/7 and 236/7 weeks...
November 8, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/29115085/prediction-of-amnionicity-using-the-number-of-yolk-sacs-in-monochorionic-multifetal-pregnancy
#14
Sue Yeon Park, Jin Hoon Chung, You Jung Han, Si Won Lee, Moon Young Kim
The purpose of this article was to evaluate the accuracy of predicting amnionicity using the number of yolk sacs by diagnostic ultrasound examination in monochorionic (MC) multifetal pregnancies between 7 + 0 and 9 + 6 gestational weeks. A total of 97 patients with MC multifetal pregnancies underwent early ultrasound examination from 2004 to 2014 at Cheil General Hospital and Women's Healthcare Center. All patients for whom the number of yolk sacs was reported were included in this study. We compared the number of yolk sacs with amnionicity confirmed by an intertwine membrane...
December 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/29108135/regimens-of-ultrasound-surveillance-for-twin-pregnancies-for-improving-outcomes
#15
REVIEW
Jane G Woolcock, Rosalie M Grivell, Jodie M Dodd
BACKGROUND: Increased ultrasound surveillance of twin pregnancies has become accepted practice due to the higher risk of complications. There is no current consensus however as to the method and frequency of ultrasound monitoring that constitutes optimal care. OBJECTIVES: To systematically review the effects of different types and frequency of ultrasound surveillance for women with a twin pregnancy on neonatal, fetal and maternal outcomes. SEARCH METHODS: We searched Cochrane Pregnancy and Childbirth's Trials Register, ClinicalTrials...
November 7, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29107981/prevalence-and-risk-factors-of-monochorionic-diamniotic-twinning-after-assisted-reproduction-a-six-year-experience-base-on-a-large-cohort-of-pregnancies
#16
Bing Song, Zhao-Lian Wei, Xiao-Feng Xu, Xue Wang, Xiao-Jin He, Huan Wu, Ping Zhou, Yun-Xia Cao
OBJECTIVE: To characterize the incidence and risk factors for monochorionic diamniotic(MC-DA) twinning after assisted reproductive technologies (ART). DESIGN: Retrospective population-based study. SETTING: The study was conducted in China; Department of Reproductive Medicine Center at The First Affiliated Hospital of Anhui Medical University. POPULATION: A cohort of 8860 clinical pregnancies after embryo transfer (ET) carried out in our center between 2011 and 2016 were retrospectively analyzed for the incidence of MC-DA twinning...
2017: PloS One
https://www.readbyqxmd.com/read/29105215/re-outcome-of-monochorionic-twin-pregnancy-with-selective-intrauterine-growth-restriction-according-to-umbilical-artery-doppler-flow-pattern-of-smaller-twin-systematic-review-and-meta-analysis-d-buca-g-pagani-g-rizzo-a-familiari-m-e-flacco-l-manzoli-m-liberati
#17
COMMENT
https://www.readbyqxmd.com/read/29103877/ethical-considerations-in-the-care-of-complicated-twin-pregnancies
#18
Naomi T Laventhal, Marjorie C Treadwell
Twin gestations are increasing in prevalence worldwide, and are potentially subject to medical complications which present uniquely complex ethical and psychosocial challenges for the pregnant patient and obstetrician to navigate. In this article, we explore these issues as they relate to medical decision-making in cases of discordant growth and discordant anomalies in both monochorionic and dichorionic twin pregnancies, including those affected by twin-twin transfusion syndrome, with particular attention to scenarios in which the individual fetuses hold competing interests...
November 2, 2017: Seminars in Fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29103351/cervical-pessary-for-preventing-preterm-birth-a-meta-analysis
#19
Zhen Jin, Liqin Chen, Dongyan Qiao, Chhavi, Astha, Baiyun Sun, Lina Wang, Hong Yu
OBJECTIVE: To evaluate the efficacy of cervical pessary in the prevention of preterm birth and its influence on pregnancy and maternal outcomes, so as to provide a clinical basis for cervical pessary to prevent premature delivery. METHOD: The databases of PubMed, Web of Science, CNKI, WanFang Data, etc, were used to search for the eligible articles. The relevant data were abstracted by two independent reviewers and performed with Stata 12.0. RESULT: Pregnancy Result: the PTB rates of pessary and control group before 28, 32, 34 and 37 weeks were analyzed and the combined RR (95%CI) values were 0...
November 5, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29101996/introduction-biomarkers-of-embryo-viability-the-search-for-the-holy-grail-of-embryo-selection
#20
Zev Rosenwaks
Over the past four decades we have witnessed great progress and increasing pregnancy success rates with in vitro fertilization. However, this apparent success has been accompanied by the burden of multiple pregnancies. While efforts to reduce the number of embryos transferred have had a salutary impact on the incidence of high order multiple pregnancies, twin gestations have not diminished significantly. Thus, the search for a marker of embryo quality with the goal of selecting the single best embryo for transfer continues to be the major challenge facing our field...
November 2017: Fertility and Sterility
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