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Twin pregnancies

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https://www.readbyqxmd.com/read/29331829/additional-small-dose-of-prostaglandin-f2%C3%AE-at-timed-artificial-insemination-failed-to-improve-pregnancy-risk-of-lactating-dairy-cows
#1
J A Sauls, B E Voelz, L G D Mendonça, J S Stevenson
Two experiments were performed to test the hypothesis that administering PGF2α concurrent with timed artificial insemination (AI) in lactating dairy cows would enhance pregnancy per AI (P/AI). In experiment 1, lactating Holstein cows (n = 289) in one herd were enrolled after a non-pregnancy diagnosis (30-36 d after AI) to synchronize subsequent ovulation before AI. Cows were assigned randomly to receive (im) 10 mg of PGF2α concurrent with timed AI (Day 0; treatment) or no injection (control). Blood samples were collected on Days -3, 0, and 13 to determine serum concentrations of progesterone...
January 3, 2018: Theriogenology
https://www.readbyqxmd.com/read/29325265/-clinical-analysis-of-105-intrauterine-fetal-deaths-in-17-years
#2
S Wang, H X Yang
Objective: To study the cause of intrauterine fetal death (IUFD) in 17 years. Methods: From June 1(st), 2000 to May 31(st), 2017, 65 621 women delivered in Peking University First Hospital. Clinical data of 105 cases of IUFD (including 82 singleton pregnancies and 23 twin pregnancies) during the 17 years were analyzed retrospectively. Results: (1) In singleton pregnancies, the leading cause of IUFD was maternal complications, including severe pre-eclampsia (36/82, 43.9%) and diabetes mellitus (6/82, 7.3%). The second reason was umbilical cord factors (13/82, 15...
December 25, 2017: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/29324601/potentially-preventable-stillbirth-in-a-diverse-u-s-cohort
#3
Jessica M Page, Vanessa Thorsten, Uma M Reddy, Donald J Dudley, Carol J Rowland Hogue, George R Saade, Halit Pinar, Corette B Parker, Deborah Conway, Barbara J Stoll, Donald Coustan, Radek Bukowski, Michael W Varner, Robert L Goldenberg, Karen Gibbins, Robert M Silver
OBJECTIVE: To estimate the proportion of potentially preventable stillbirths in the United States. METHODS: We conducted a secondary analysis of 512 stillbirths with complete evaluation enrolled in the Stillbirth Collaborative Research Network from 2006 to 2008. The Stillbirth Collaborative Research Network was a multisite, geographically, racially, and ethnically diverse, population-based case-control study of stillbirth in the United States. Cases of stillbirth underwent standard evaluation that included maternal interview, medical record abstraction, biospecimen collection, postmortem examination, placental pathology, and clinically recommended evaluation...
January 9, 2018: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29322346/study-on-the-incidence-and-influences-on-heterotopic-pregnancy-from-embryo-transfer-of-fresh-cycles-and-frozen-thawed-cycles
#4
Shan Xiao, Meilan Mo, Xiaodong Hu, Hongzhan Zhang, Shiru Xu, Zhuran Wang, Yong Zeng
PURPOSE: The purpose of this study was to determine the heterotopic pregnancy rate using fresh versus frozen-thawed embryo transfers and factors associated with heterotopic pregnancy (HP). Management and clinical outcomes after heterotopic pregnancy were also evaluated. METHODS: In this retrospective cohort study, we included 12,484 women who had clinical pregnancies after in vitro fertilization treatment at our fertility center between 2012 and 2017. Patients received fresh day 3 embryos (F-D3 group), fresh day 5 blastocysts (F-D5 group), frozen-thawed day 3 embryos (T-D3 group), or frozen-thawed day 5 or 6 blastocysts (T-D5/6 groups) transfers...
January 11, 2018: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/29316011/roles-of-venovenous-anastomosis-and-umbilical-cord-insertion-abnormalities-in-birthweight-discordance-in-monochorionic-diamniotic-twin-pregnancies-without-twin-twin-transfusion-syndrome
#5
Hiroko Konno, Takeshi Murakoshi, Akiko Yamashita, Mitsuru Matsushita
AIM: We evaluated risk factors for birthweight discordance in monochorionic diamniotic (MCDA) twin pregnancies without twin-twin transfusion syndrome (TTTS). METHODS: We investigated all MCDA twin placentas injected with colored dye at our institution between 2007 and 2015. We excluded pairs of twins with TTTS, fetal demise, or severe fetal malformation. All pairs of twins were assigned to the discordant group (birthweight discordance ≥ 25%) or the concordant group (birthweight discordance < 25%)...
January 5, 2018: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/29315321/inner-cell-mass-incarceration-in-8-shaped-blastocysts-does-not-increase-monozygotic-twinning-in-preimplantation-genetic-diagnosis-and-screening-patients
#6
Yi-Fan Gu, Qin-Wei Zhou, Shuo-Ping Zhang, Chang-Fu Lu, Fei Gong, Yue-Qiu Tan, Guang-Xiu Lu, Ge Lin
BACKGROUND: The use of assisted reproductive technology (ART) has been reported to increase the incidence of monozygotic twinning (MZT) compared with the incidence following natural conception. It has been hypothesized that splitting of the inner cell mass (ICM) through a small zona hole may result in MZT. In this study, using a cohort of patients undergoing preimplantation genetic diagnosis/screening (PGD/PGS), we compared the clinical and neonatal outcomes of human 8-shaped blastocysts hatching with ICM incarceration with partially or fully hatched blastocysts, and attempted to verify whether this phenomenon increases the incidence of MZT pregnancy or negatively impact newborns...
2018: PloS One
https://www.readbyqxmd.com/read/29314091/the-relationship-between-preoperative-fetal-head-circumference-and-2-year-cognitive-performance-after-laser-surgery-for-twin-twin-transfusion-syndrome
#7
Andrew H Chon, Mary Rose Mamey, Sheree M Schrager, Douglas L Vanderbilt, Ramen H Chmait
OBJECTIVE: To determine the relationship between preoperative fetal head circumference (HC) and cognitive performance among children treated with laser surgery for twin-twin transfusion syndrome (TTTS). METHODS: Donor and recipient twin HCs were measured preoperatively (16 - 26 weeks' gestation) and at 2 years corrected age. Multilevel multivariate regression models were used to test pregnancy and child-level risk factors for lower Battelle Developmental Inventory 2nd Edition (BDI-2) scores...
January 4, 2018: Prenatal Diagnosis
https://www.readbyqxmd.com/read/29304544/obstetric-history-and-likelihood-of-preterm-birth-of-twins
#8
Sarah Rae Easter, Sarah E Little, Julian N Robinson, Hector Mendez-Figueroa, Suneet P Chauhan
OBJECTIVE:  The objective of this study was to investigate the relationship between preterm birth in a prior pregnancy and preterm birth in a twin pregnancy. STUDY DESIGN:  We performed a secondary analysis of a randomized controlled trial evaluating 17-α-hydroxyprogesterone caproate in twins. Women were classified as nulliparous, multiparous with a prior term birth, or multiparous with a prior preterm birth. We used logistic regression to examine the odds of spontaneous preterm birth of twins before 35 weeks according to past obstetric history...
January 5, 2018: American Journal of Perinatology
https://www.readbyqxmd.com/read/29302809/preeclampsia-acts-differently-in-in-vitro-fertilization-versus-spontaneous-twins
#9
Rania Okby, Avi Harlev, Kira Nahum Sacks, Ruslan Sergienko, Eyal Sheiner
OBJECTIVE: To investigate risk factors and pregnancy outcome of spontaneous vs in-vitro fertilization (IVF) twins complicated with preeclampsia. STUDY DESIGN: A retrospective population-based cohort study comparing maternal and neonatal outcome in IVF vs spontaneously conceived twins was conducted. Deliveries occurred in a tertiary medical center between the years 1988 and 2010. Women who conceived after ovulation induction and those with chronic hypertension were excluded from the study...
January 4, 2018: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/29301441/use-of-the-fetal-myocardial-performance-index-in-monochorionic-diamniotic-twin-pregnancy-a-prospective-cohort-and-nested-case-control-study
#10
Amanda Henry, Saranya Gopikrishna, Aditi Mahajan, Jennifer Alphonse, Neama Meriki, Alec W Welsh
AIMS: Assess clinical utility of the fetal Myocardial Performance Index (MPI) in evaluation and management of monochorionic, diamniotic twin (MCDA) pregnancies. METHODS: Prospective cohort of a) initially uncomplicated MCDA b) Complicated MCDA, including twin-twin transfusion syndrome (TTTS), selective intrauterine growth restriction (sIUGR), and liquor and/or growth discordance (L/GD) not meeting TTTS or sIUGR criteria. TTTS and sIUGR were case-control matched...
January 4, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29298686/a-single-center-experience-with-12-consecutive-cases-of-pregnancy-among-patients-with-membranous-ventricular-septal-aneurysm
#11
Kana Wang, Xiaodong Wang, Haiyan Yu, Xinghui Liu, Aiyun Xing, Yong You
BACKGROUND: Membranous ventricular septal aneurysm (MVSA) is a rare cardiac anomaly that can occur as an isolated entity or being associated with other cardiac malformations. Complications of MVSA include thromboembolism, arrhythmia, rupture, bacterial endocarditis, right ventricular outflow tract obstruction, and atrioventricular valve diseases.The success rate of pregnancy and delivery in patients with MVSA has not been reported in the literature. This study was to assess the clinical implications of this condition from our center's experience...
January 3, 2018: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/29298662/influence-of-weight-gain-according-to-institute-of-medicine-2009-recommendation-on-spontaneous-preterm-delivery-in-twin-pregnancies
#12
Paola Algeri, Francesca Pelizzoni, Davide Paolo Bernasconi, Francesca Russo, Maddalena Incerti, Sabrina Cozzolino, Salvatore Andrea Mastrolia, Patrizia Vergani
BACKGROUNDS: Maternal total weight gain during pregnancy influences adverse obstetric outcomes in singleton pregnancies. However, its impact in twin gestation is less understood. Our objective was to estimate the influence of total maternal weight gain on preterm delivery in twin pregnancies. METHODS: We conducted a retrospective cohort study including diamniotic twin pregnancies with spontaneous labor delivered at 28 + 0 weeks or later. We analyzed the influence of total weight gain according to Institute of Medicine (IOM) cut-offs on the development of preterm delivery (both less than 34 and 37 weeks)...
January 3, 2018: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/29297615/re-fetal-cardiac-remodeling-in-twin-pregnancy-conceived-by-assisted-reproductive-technology-b-valenzuela-alcaraz-m-cruz-lemini-m-rodriguez-lopez-a-gonce-l-garcia-otero-h-ayuso-m-sitges-b-bijnens-j-balasch-e-gratacos-and-f-crispi-ultrasound-obstet-gynecol-2018
#13
https://www.readbyqxmd.com/read/29289935/association-between-total-dose-of-ritodrine-hydrochloride-and-pulmonary-oedema-in-twin-pregnancy-a-retrospective-cohort-study-in-japan
#14
Satoshi Shinohara, Rei Sunami, Yuzo Uchida, Shuji Hirata, Kohta Suzuki
OBJECTIVE: Pulmonary oedema is recognised as a severe side effect of ritodrine hydrochloride. Recently, the number of twin pregnancies has been increasing. Few studies have reported the association between total dose of ritodrine hydrochloride prior to delivery and pulmonary oedema in twin pregnancy. We aimed to examine this association and determine the optimal cut-off threshold of total ritodrine hydrochloride dose to predict the incidence of pulmonary oedema in twin pregnancy based on obstetric records...
December 29, 2017: BMJ Open
https://www.readbyqxmd.com/read/29287298/polyhydramnios-affecting-a-recipient-like-twin-risk-of-progression-to-twin-twin-transfusion-syndrome-and-outcomes
#15
Erin E Washburn, Teresa N Sparks, Kristen A Gosnell, Larry Rand, Juan M Gonzalez, Vickie A Feldstein
OBJECTIVE:  The significance of polyhydramnios of one twin in the absence of oligohydramnios of the cotwin in monochorionic diamniotic (MCDA) twin pregnancies (polyhydramnios affecting a recipient-like twin [PART]) is unknown. Our aim is to assess the risk of progression to twin-twin transfusion syndrome (TTTS) with PART, progression to ≥ stage II TTTS, and neonatal survival. STUDY DESIGN:  This study was a retrospective cohort study of MCDA twin pregnancies with PART evaluated at a referral center from 2008 to 2015...
December 29, 2017: American Journal of Perinatology
https://www.readbyqxmd.com/read/29286910/selective-iugr-in-dichorionic-twins-what-can-doppler-assessment-and-growth-discordancy-say-about-neonatal-outcomes
#16
Paola Algeri, Matteo Frigerio, Maria Lamanna, Petya Vitanova Petrova, Sabrina Cozzolino, Maddalena Incerti, Salvatore Andrea Mastrolia, Nadia Roncaglia, Patrizia Vergani
OBJECTIVE: The aim of the present study was to assess, in a population of dichorionic twin pregnancies with selective growth restriction, the effect of inter-twin differences by use of Doppler velocimetry and fetal growth discordancy on perinatal outcomes. METHODS: This was a retrospective study including dichorionic twin pregnancies from January 2008 to December 2015 at the Department of Obstetrics and Gynecology of Fondazione MBBM. Only dichorionic twin pregnancies affected by selective intrauterine growth restriction (IUGR) delivering at ≥24 weeks were included in the study...
December 29, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/29285069/correlation-of-hypertensive-disorders-in-pregnancy-with-procedures-of-in-vitro-fertilization-and-pregnancy-outcomes
#17
Fang Xiong, Lingqing Hu, Yun Zhang, Xiao Xiao
We investigated the correlation of hypertensive disorders in pregnancy with different procedures of in vitro fertilization, and analyzed pregnancy outcomes of patients with hypertensive disorders in pregnancy. A retrospective analysis was performed on the medical records of 658 maternity patients who conceived through in vitro fertilization in Maternal and Child Health Hospital of Wuxi. Patients were divided into two groups according to different fertilization procedures: i) the routine in vitro fertilization-embryo transfer group (IVF-ET group, 377 cases) and ii) intra-cytoplasmic sperm injection-embryo transfer group (ICSI-ET group, 281 cases)...
December 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29279782/a-singleton-infant-with-bilateral-renal-agenesis-and-normal-pulmonary-function
#18
Lovya George, Winston Manimtim, Jotishna Sharma
Bilateral renal agenesis leads to anhydramnios and other sequelae including pulmonary hypoplasia. There have been rare case reports of normal pulmonary function in the presence of bilateral renal agenesis in monoamniotic discordant twins, but this has never been reported in a singleton pregnancy. The few reported cases in twins have all been fatal in the neonatal period with no reported cases of survival beyond 2 months. We describe the first case of a singleton infant with bilateral renal agenesis who had normal pulmonary function and did well on peritoneal dialysis for 4 years while awaiting a renal transplant...
2017: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/29277048/comparison-of-planned-caesarean-delivery-and-planned-vaginal-delivery-in-women-with-a-twin-pregnancy-a-nation-wide-cohort-study
#19
Simone M T A Goossens, Sabine Ensing, Mark A H B M van der Hoeven, Frans J M E Roumen, Jan G Nijhuis, Ben W Mol
OBJECTIVE: To compare, in women with twin pregnancy with the first twin in cephalic position, neonatal morbidity and mortality rates after planned Ceasarean delivery (CD) versus planned vaginal delivery (VD). STUDY DESIGN: A nationwide cohort study on women pregnant with twins and the first child in cephalic position, who delivered between 32 + 0-41 + 0 weeks between 2000 and 2012 in the Netherlands, using multivariate logistic regression analysis to compare neonatal morbidity and mortality according to planned delivery mode, and looked at subgroups 32 + 0-36 + 6 and 37 + 0-41 + 0 weeks...
December 15, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/29275238/simultaneous-pregnancy-in-each-uterine-cavity-of-a-double-uterus-in-a-young-nigerian-multipara-who-presented-with-a-retained-second-twin-following-an-unsupervised-preterm-labor-at-home-case-report
#20
Emmanuel Oluchikwu Ani, Emmanuel Ajuluchukwu Ugwa, Aminu Bashir Taiye, Iwasam Elemi Agbor, Ibrahim Shaaibu Suleiman
INTRODUCTION: Simultaneous pregnancy in each uterine cavity of a double uterus is unusual but is a recognized risk factor for preterm labour and other poor obstetrics outcomes. The work has been reported in line with the SCARE criteria. PRESENTATION OF CASE: We report an unusual case of simultaneous pregnancy in each uterine cavity of a double uterus in a young African grand multipara who presented with a retained second twin following a preterm labour at home. DISCUSSION: A double or didelphys uterus as reported in the literatures is still uncommon even in Africa...
December 13, 2017: International Journal of Surgery Case Reports
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