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Relationship between type and weight of placenta and neonate birth weight in twin pregnancy

100%
Waszak M., Cieślik K., Kempiak J., Bręborowicz G., Gadzinowski J.
Anthropological Review
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2013
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vol. 76
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issue 2
173-182
EN
The relationship between the type and size of placenta and the development of twin fetuses is still discussed in perinatology. The objective of this paper is to answer the question whether the final weight and size of placenta is a limiting factor for fetal growth in twin pregnancy. The study material consisted of 1,261 pairs of fetuses from monochorionic (MC) and dichorionic (DC) twin pregnancies, born by cesarean section between pregnancy weeks 22 and 41 at the Perinatology and Gynecology Department of the Poznan University of Medical Sciences between 2003 and 2009. Histological examination of secundines, placental weights, and birth weight of twins were evaluated, and the newborn condition was assessed by the Apgar score. Statistical evaluation by analysis of variance assessed placental growth related to gestational age and also the effect of placental-fetal weight ratio on neonate clinical condition. We observed an increase in placenta growth until 38 weeks of pregnancy in twins sharing one placenta and until 36 weeks of pregnancy in twins with separate placentas. Between 22 and 35 weeks of pregnancy, the placental-fetal weight ratio in twins sharing one placenta was higher and they were also smaller than twins with separate placentas The placental-fetal weight ratio was comparable in all twins at delivery and was associated with the clinical condition of newborns. Newborns who received an Apgar score of 8 or more 10 minutes post delivery had a lower ratio than neonates with Apgar score equal to or lower than 7 (p≤0.01). Although these latter twins had both smaller placentas and smaller birth weights, their placental-fetal weight ratios were significantly higher than those of twins born in good condition. Placental growth decreases before pregnancy term but does not limit fetal birth weight in twin pregnancy.
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Stan rozwoju mowy dzieci urodzonych z ciąży bliźniaczej i ciąży pojedynczej – analiza porównawcza

84%
Balcerzak K.
Logopedia
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2020
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vol. 49
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issue 2
177-196
PL
W niniejszym artykule podjęto temat rozwoju mowy dzieci urodzonych z ciąży mnogiej. Z uwagi na specyficzne uwarunkowania społeczne, a także szczególne obciążenia neotologiczne bliźniąt, należą one do grupy dzieci z ryzykiem zaburzeń rozwojowych. Przejawem zaburzeń rozwoju dzieci z ciąż mnogich mogą być zaburzenia dynamiki w nabywaniu systemu językowego. Na potrzeby niniejszego opracowania badań dokonano analizy porównawczej stanu kompetencji i sprawności językowych w zakresie poszczególnych podsystemów języka grupy dzieci z ciąży pojedynczej oraz grupy bliźniąt. Za problemem badawczy przyjęto pytanie: czy szczególne uwarunkowania biologiczne i środowiskowe bliźniąt determinują dynamikę nabywania przez nie systemu językowego? Badaniem objęto dziewięcioro dzieci 3-letnich, w tym trzy pary rodzeństwa bliźniaczego stanowiących grupę badaną oraz troje dzieci urodzonych z ciąży pojedynczej, stanowiących grupę kontrolną.
EN
This article presents the subject of speech development of twin-born children. Due to the significant importance of environmental and neotological factors, twins are considered to be at risk of developmental disorders. This is manifested by language delay and quantitative and qualitative differences in all aspects of the language, compared to children born from single pregnancies. In this study it was made a comparative analysis of the state of linguistic competences of all language subsystems in the group of single- and twin-born children. The research problem has become the question: do the specific biological and environmental conditions of twin pregnancy determine the dynamics of acquiring the language system by them? The study concerned nine 3-year-old children, including three pairs of twins constituting the research group and three children born from a single pregnancy constituting the control group.
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