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monochorionic twin pregnancy

Yaniv Zipori, Karen Reidy, T Gilchrist, Lex W Doyle, Mark P Umstad
BACKGROUND: Monochorionic diamniotic (MCDA) twin pregnancies are associated with adverse perinatal outcome. Intertwin discordances at the time of nuchal translucency (NT) screening may have a value in the prediction of fetal loss or twin-to-twin transfusion syndrome. We aimed to determine the ability of intertwin NT and crown rump length (CRL) discordances among MCDA twins to predict adverse outcomes. MATERIAL AND METHODS: All MCDA twins with a documented routine ultrasound at 11 to 13+6 weeks' gestation, and known pregnancy outcome between August 2003 and August 2012 were included...
October 21, 2016: Twin Research and Human Genetics: the Official Journal of the International Society for Twin Studies
Y Wang, Y Wei, P B Yuan, X J Wang, Y Y Zhao
Objective: To analyze the prognosis of surviving monochorionic co-twin after single intrauterine fetal demise (sIUFD). Methods: Retrospectively analyzed the twin pregnancy cases admitted in Peking University Third Hospital between Jan 2008 and Feb 2015. We recorded perinatal characteristics, neuroimage in co-twin, and followed up the neonatal outcome. Results: 47 cases were found, including 45 cases of monochorionic diamniotic (MCDA) and 2 cases of monochorionic monoamniotic (MCMA). Median gestational age at sIUFD was 27 weeks...
October 11, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
Shiraz A Maskatia, Rodrigo Ruano, Alireza A Shamshirsaz, Pouya Javadian, Joshua A Kailin, Michael A Belfort, Carolyn A Altman, Nancy A Ayres
INTRODUCTION: Twin-twin transfusion syndrome (TTTS) is the major cause for fetal demise in monochorionic diamniotic pregnancies. Estimated combined cardiac output (CCO) has not been studied in this setting. The primary aims of this study were to compare CCO in twin donor and recipient fetuses and assess differences in CCO before and after laser coagulation therapy. A secondary aim was to evaluate the relationship of CCO with perinatal mortality, defined as intrauterine or neonatal mortality (≤30 days of age) in fetuses that underwent laser coagulation therapy...
October 19, 2016: Echocardiography
Rosemary Townsend, Asma Khalil
PURPOSE OF REVIEW: Selective intrauterine growth restriction (sIUGR) in twin pregnancies presents a complex management problem for the fetal medicine specialist. This review summarizes what is currently known about sIUGR pathophysiology, particularly in monochorionic pregnancies and looks at the results of early trials of fetal intervention in high-risk sIUGR pregnancies. RECENT FINDINGS: sIUGR in monochorionic pregnancies is due to unequal placental sharing, but the clinical outcome is determined by the characteristics of the placental vascular anastomoses...
October 15, 2016: Current Opinion in Obstetrics & Gynecology
Liran Hiersch, Mayan Eitan, Eran Ashwal, Boaz Weisz, Benny Chayen, Shlomo Lipitz, Yoav Yinon
OBJECTIVE: To estimate the risk for twin anemia-polycythemia sequence (TAPS) and adverse perinatal outcome in monochorionic diamniotic (MCDA) twin pregnancies with amniotic fluid discordance (AFD). METHODS: Retrospective cohort study of 34 MCDA pregnancies with AFD (intertwin difference of ≥3 cm in maximal vertical pocket measurement) without meeting the criteria for twin to twin transfusion syndrome (TTTS) or selective intrauterine growth restriction (sIUGR)...
October 12, 2016: Prenatal Diagnosis
T Ghi, L Franchi, S Fieni, A Dall'Asta, N Gaibazzi, C Siniscalchi, G Pedrazzi, E Sciatti, I Bonadei, E Vizzardi, E Montaguti, D Degli Esposti, C Borghi, R Orabona, F Prefumo, T Frusca
OBJECTIVES: To assess longitudinally the echocardiographic findings in a cohort of women carrying an uncomplicated monochorionic (MC) twin pregnancy and compare them with those obtained from dichorionic (DC) twin gestations. METHODS: Healthy women with MC twin pregnancies were submitted to serial transthoracic maternal echocardiography during the first, second and third trimester. Cases with severe obstetric complications after enrollment were eventually excluded...
August 2016: Journal of Maternal-fetal & Neonatal Medicine
R Radulescu-Botica
No abstract text is available yet for this article.
September 2016: Ultrasound in Obstetrics & Gynecology
C Martínez-Payo, L Avilleira, G Villa López, Y Nieto Jimenez, A Gomez Manrique, M Ruiz de Azúa Ballesteros
No abstract text is available yet for this article.
September 2016: Ultrasound in Obstetrics & Gynecology
I Mediouni, G E Chalouhi, J Stirneman, A Carrier, L J Salomon, Y Ville
No abstract text is available yet for this article.
September 2016: Ultrasound in Obstetrics & Gynecology
Martin J C van Gemert, Michael G Ross, Peter G J Nikkels, Jeroen P H M van den Wijngaard
BACKGROUND: Acardiac monochorionic twins lack cardiac function but grow by passive perfusion of the pump twin's deoxygenated arterial blood through placental arterioarterial (AA) and venovenous (VV) anastomoses and by hypoxia-mediated neovascularization. Pump twins therefore must continuously increase their cardiac output which may cause heart failure. Our aims were: to adapt our twin-twin transfusion syndrome model for acardiac twin pregnancies, to simulate pump and acardiac twin development, and to examine the model for early prognostic markers of pump twin survival...
September 15, 2016: Birth Defects Research. Part A, Clinical and Molecular Teratology
Francesco D'Antonio, Alessandra Familiari, Basky Thilaganathan, Aris T Papageorghiou, Lamberto Manzoli, Asma Khalil, Amar Bhide
The first aim of this study was to ascertain the diagnostic performance of first trimester ultrasound in detecting congenital anomalies in twins. The secondary aim was to explore the strength of association between different pregnancy characteristics and early detection of structural anomalies in a large unselected population of twin pregnancies. A systematic review of the published literature was also carried out MATERIAL AND METHODS: Retrospective analysis of prospectively collected data from consecutive twin pregnancies booked for antenatal care from 1996 till 2014...
September 13, 2016: Acta Obstetricia et Gynecologica Scandinavica
Oliver T Stirrup, Asma Khalil, Francesco D'Antonio, Baskaran Thilaganathan
INTRODUCTION: This study investigates patterns of intertwin size discordance in dichorionic diamniotic (DCDA) and monochorionic diamniotic (MCDA) twin pregnancies. MATERIAL AND METHODS: Ultrasound measurements of twin pregnancies, from 14 weeks to term, were collected by 9 hospitals over a 10-year period. This analysis considers the modelled and observed levels of discordance in abdominal circumference (AC) and estimated fetal weight (EFW) in relation to gestational age...
September 14, 2016: Fetal Diagnosis and Therapy
N V Nizyaeva, K V Kostyukov, K A Gladkova, G V Kulikova, A I Shchegolev
Monochorionic multiple pregnancy has a higher risk for obstetric complications, including those due to the development of twin-to-twin transfusion syndrome and reversed arterial perfusion syndrome (TRAP sequence). The latter occurs in 0.1% of all monochorionic pregnancies. The basis for TRAP sequence is a relationship between arterial and venous anastomoses from the appropriate placental areas, causing a recipient fetus to develop at the expense of a donor fetus. The presence of abnormal anastomoses is considered to be a main cause of acardia...
July 2016: Arkhiv Patologii
Fiona Cheong-See, Ewoud Schuit, David Arroyo-Manzano, Asma Khalil, Jon Barrett, K S Joseph, Elizabeth Asztalos, Karien Hack, Liesbeth Lewi, Arianne Lim, Sophie Liem, Jane E Norman, John Morrison, C Andrew Combs, Thomas J Garite, Kimberly Maurel, Vicente Serra, Alfredo Perales, Line Rode, Katharina Worda, Anwar Nassar, Mona Aboulghar, Dwight Rouse, Elizabeth Thom, Fionnuala Breathnach, Soichiro Nakayama, Francesca Maria Russo, Julian N Robinson, Jodie M Dodd, Roger B Newman, Sohinee Bhattacharya, Selphee Tang, Ben Willem J Mol, Javier Zamora, Basky Thilaganathan, Shakila Thangaratinam
OBJECTIVE: To determine the risks of stillbirth and neonatal complications by gestational age in uncomplicated monochorionic and dichorionic twin pregnancies. DESIGN: Systematic review and meta-analysis. DATA SOURCES: Medline, Embase, and Cochrane databases (until December 2015). REVIEW METHODS: Databases were searched without language restrictions for studies of women with uncomplicated twin pregnancies that reported rates of stillbirth and neonatal outcomes at various gestational ages...
September 6, 2016: BMJ: British Medical Journal
Amirhossein Moaddab, Ahmed A Nassr, Jimmy Espinoza, Rodrigo Ruano, Zhoobin H Bateni, Amir A Shamshirsaz, George T Mandy, Stephen E Welty, Hadi Erfani, Edwina J Popek, Michael A Belfort, Alireza A Shamshirsaz
Twin anemia polycythemia sequence (TAPS) is defined by significant intertwin hemoglobin discordance without the amniotic fluid discordance that characterizes twin-twin-transfusion syndrome (TTTS) in monochorionic twin pregnancies. TAPS is an uncommon condition which can either occur spontaneously, or following fetoscopic laser ablation for TTTS. This complication is thought to result from chronic transfusion through very small placental anastomoses; however, the pathogenesis of TAPS remains unknown. Consequently, there is no consensus in the management of TAPS...
October 2016: European Journal of Obstetrics, Gynecology, and Reproductive Biology
Rebecca McDonald, Ryan Hodges, Michelle Knight, Mark Teoh, Andrew Edwards, Peter Neil, Euan M Wallace, Philip DeKoninck
INTRODUCTION: Monochorionic-diamniotic (MCDA) twin pregnancies are high risk, due to twin-to-twin transfusion syndrome (TTTS), twin anaemia polycythaemia sequence (TAPS) and intrauterine growth restriction (IUGR). There is limited evidence to guide ultrasound surveillance protocols. Using a retrospective cohort, we aimed to provide insight into the optimal interval of ultrasound surveillance. METHODS: Retrospective cohort of women with MCDA pregnancies who received antenatal care at Monash Medical Centre (January 2011-October 2014)...
August 25, 2016: Fetal Diagnosis and Therapy
Hiroshi Kawamura, Keisuke Ishii, Aki Mabuchi, Ryo Yamamoto, Shusaku Hayashi, Nobuaki Mitsuda
AIM: To evaluate the incidence of twin-twin transfusion syndrome (TTTS) and the perinatal outcome at 28 days of age in monochorionic diamniotic (MCDA) pregnancies complicated with isolated polyhydramnios (I-Poly) and isolated oligohydramnios (I-Oligo) diagnosed < 26 weeks of gestation. METHODS: This was a retrospective study of women with MCDA pregnancies diagnosed with I-Poly or I-Oligo before 26 weeks of gestation over a period of six years. The incidence of subsequent TTTS and neonatal outcome in terms of intact survival (IS) at 28 days of age were evaluated...
August 24, 2016: Journal of Obstetrics and Gynaecology Research
Jae Young Kwack, Su-Bun Jeon, Keuna Kim, Soo-Jeong Lee, Yong Soon Kwon
A 31-year-old nulliparous woman with severe diffuse uterine adenomyosis, which replaced nearly the whole uterine myometrium, visited our hospital due to severe dysmenorrhea, menorrhagia, and a desire to have a baby. The patient had a history of two spontaneous abortions. Laparotomic adenomyomectomy with transient occlusion of uterine arteries (TOUA) was performed safely and the patient tried in vitro fertilization and achieved a intrauterine twin pregnancy after recovery time of the operation. At 31+6 weeks of gestation, a male neonate baby weighing 1,620 g and a male neonate baby weighing 1,480 g were born by transverse lower segment cesarean delivery...
July 2016: Obstetrics & Gynecology Science
R E Bohîlțea, M M Cîrstoiu, A I Ciuvica, O Munteanu, O Bodean, D Voicu, C A Ionescu
A velamentous umbilical cord is characterized by membranous umbilical vessels at the placental insertion site that are prone to compression and rupture, especially when they are located in the membranes covering the cervical os (vasa praevia). The velamentous insertion of the umbilical cord, with a reported incidence of 1% in singleton pregnancies and 15% in monochorionic twin gestations, has been associated with obstetric complications: fetal growth restriction, prematurity, congenital anomalies, low Apgar scores, fetal bleeding with acute fetal distress and placental retention...
April 2016: Journal of Medicine and Life
Warwick B Dunn, J William Allwood, Tim Van Mieghem, R Katie Morris, Fiona L Mackie, Caroline E Fox, Mark D Kilby
INTRODUCTION: Twin-twin transfusion syndrome (TTTS) complicates 15% of monochorionic twin pregnancies, often being associated with recipient cardiac dysfunction. Untreated, it has a fetal mortality rate of at least 90%; although treatment by fetoscopic laser coagulation significantly improves prognosis. Measurement of recipient amniotic fluid metabolites, such as cardiac Troponin T and atrial natriuretic polypeptide, correlate with cardiac function in this fetus. The aim of this study is to describe the amniotic fluid metabolomic profile in TTTS, relate this to fetal recipient cardiac function and assess the metabolomic changes induced by fetoscopic laser coagulation...
August 2016: Placenta
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