Management of Fetal Growth Arrest in One of Dichorionic Twins: Three Cases and a Literature Review

Kudoh, Shoji; Kimura, Fuminori; Murakami, Takashi

doi:10.1155/2015/289875

Cited by 3 publications

(1 citation statement)

References 17 publications

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“…The recommended management for sFGR in DC twin pregnancies is the same as that of growth restricted singletons [1,5]. However, the evidence available to support this is scarce [6], and most of the literature on this subject largely focuses on MC twins. sFGR in MC twins is thought to be caused by an unequal sharing of the placenta and distribution of blood through placental anastomoses [7], whereas in DC twins, from placental insufficiency in one of the placentas [4]-explaining the higher incidence of pre-eclampsia in DC than MC twins with sFGR [8].…”

Section: Introductionmentioning

confidence: 99%

Selective Fetal Growth Restriction in Dichorionic Twin Pregnancies: Diagnosis, Natural History, and Perinatal Outcome

Antonakopoulos

Pateisky

Liu

et al. 2020

JCM

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This study aims to evaluate the natural history, disease progression, and outcomes in dichorionic twins with selective fetal growth restriction (sFGR) according to different diagnostic criteria and time of onset. Dichorionic twins seen from the first trimester were included. sFGR was classified according to the Delphi consensus, and was compared to the outcomes of those classified by the International Society of Ultrasound in Obstetrics and Gynecology (ISUOG) diagnostic criteria. Early sFGR occurred before 32-weeks, and late sFGR after 32-weeks. Disease progression, neonatal outcomes such as gestation at delivery, birthweight, neonatal unit (NNU) admission, and morbidities were compared. One-hundred twenty-three of 1053 dichorionic twins had sFGR, where 8.4% were classified as early sFGR, and 3.3% were late sFGR. Disease progression was seen in 36%, with a longer progression time (5 vs. 1 week) and higher progression rate (40% vs. 26%) in early sFGR. Perinatal death was significantly higher in the sFGR than the non-sFGR group (24 vs. 16 per 1000 births, p = 0.018), and those with early sFGR had more NNU admissions than late sFGR (p = 0.005). The ISUOG diagnostic criteria yielded a higher number of sFGR than the Delphi criteria, but similar outcomes. sFGR have worse perinatal outcomes, with early onset being more prevalent. Use of the Delphi diagnostic criteria can reduce over-diagnosis of sFGR and avoid unnecessary intervention.

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Section: Introductionmentioning

confidence: 99%

Selective Fetal Growth Restriction in Dichorionic Twin Pregnancies: Diagnosis, Natural History, and Perinatal Outcome

Antonakopoulos

Pateisky

Liu

et al. 2020

JCM

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THE CONCISE GUIDE TO PHARMACOLOGY 2017/18: G protein‐coupled receptors

Alexander

Christopoulos

Davenport

et al. 2017

British J Pharmacology

740

655

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The Concise Guide to PHARMACOLOGY 2017/18 provides concise overviews of the key properties of nearly 1800 human drug targets with an emphasis on selective pharmacology (where available), plus links to an open access knowledgebase of drug targets and their ligands (www.guidetopharmacology.org), which provides more detailed views of target and ligand properties. Although the Concise Guide represents approximately 400 pages, the material presented is substantially reduced compared to information and links presented on the website. It provides a permanent, citable, point-in-time record that will survive database updates. The full contents of this section can be found at http://onlinelibrary.wiley.com/doi/10.1111/bph.13878/full. G protein-coupled receptors are one of the eight major pharmacological targets into which the Guide is divided, with the others being: ligand-gated ion channels, voltage-gated ion channels, other ion channels, nuclear hormone receptors, catalytic receptors, enzymes and transporters. These are presented with nomenclature guidance and summary information on the best available pharmacological tools, alongside key references and suggestions for further reading. The landscape format of the Concise Guide is designed to facilitate comparison of related targets from material contemporary to mid-2017, and supersedes data presented in the 2015/16 and 2013/14 Concise Guides and previous Guides to Receptors and Channels. It is produced in close conjunction with the Nomenclature Committee of the Union of Basic and Clinical Pharmacology (NC-IUPHAR), therefore, providing official IUPHAR classification and nomenclature for human drug targets, where appropriate. Conflict of interestThe authors state that there are no conflicts of interest to declare.

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Potential for Porphyry Copper Deposits in Northern Tōhoku (or the Exploration Potential for Base and Precious Metal Deposits in Japan 2020)

Arribas

Mizuta

2018

Resource Geology

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There are no known porphyry copper deposits in Japan. Attempts were made in the past to explain this paradox as the Japanese islands sit above a subduction zone of the type widely accepted to give rise to porphyry-type deposits within subvolcanic magmatic-hydrothermal systems. Is it possible that porphyry copper systems are incompatible with the volcanoplutonic setting of the Japanese islands? In other words, is the established model for the genesis of porphyry copper systems not completely correct, or is it that the elusive Japanese porphyry deposit has not yet been found? We argue that, until proven otherwise, the answer lies in the latter option. In this article, we focus on Akita Prefecture and the surrounding areas and consider the potential for the existence of porphyry copper deposits mainly from an empirical and practical point of view, in contrast with the obviously important petrogenetic and/or tectonic perspectives. We argue that this region is representative of the T ohoku province of northern Honshu and that it serves as a proxy for Japan in general. Akita is rich in mineralization styles and deposits, including two main magmatic-hydrothermal deposit types of Neogene age: (i) middle Miocene submarine stratiform volcanogenic massive sulfide (VMS) deposits (Kuroko) and (ii) late Miocene to Pleistocene Ag-Au-bearing polymetallic epithermal/subepithermal veins. In particular the Au-Ag-bearing polymetallic veins, which are comparable to intermediate-sulfidation epithermal deposits commonly associated with porphyry copper systems, were discovered and mined for several centuries before the first Kuroko deposits were found in the late 1800s. Osarizawa, the last active vein mine, closed in 1978. Kuroko deposits, the main source of metal production in Akita in the 20th century, had peak of production in the 1970s, followed by a rapid decline during the 1980s and complete cessation of all mining by 1995. Not surprisingly, the end of mining in Akita, combined with a series of strategic decisions made by the Government and the Japanese metal mining industry, coincided with a cessation of mineral exploration, both in Akita and throughout Japan, with the exception of VMS deposits offshore and limited exploration for bonanza-grade, low-sulfidation epithermal gold deposits in Hokkaido. Our analysis of post-1945 regional exploration in northern T ohoku indicates that Kuroko deposits were by far the dominant target and that the number of drill holes in the 1990s accounted for less than 4% of the total completed from the early 1960s to 1995. These data indicate that essentially no mineral exploration has been conducted in T ohoku for Au-Agbearing polymetallic vein deposits during the past 30+ years. We conclude that exploration stopped too early and certainly before it could have benefited from the significant applicable metallogenic and technological breakthroughs of the last few decades.

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Management of Fetal Growth Arrest in One of Dichorionic Twins: Three Cases and a Literature Review

Cited by 3 publications

References 17 publications

Selective Fetal Growth Restriction in Dichorionic Twin Pregnancies: Diagnosis, Natural History, and Perinatal Outcome

Selective Fetal Growth Restriction in Dichorionic Twin Pregnancies: Diagnosis, Natural History, and Perinatal Outcome

THE CONCISE GUIDE TO PHARMACOLOGY 2017/18: G protein‐coupled receptors

Potential for Porphyry Copper Deposits in Northern Tōhoku (or the Exploration Potential for Base and Precious Metal Deposits in Japan 2020)

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