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Effect of morphological and functional changes in the secundines on biometric parameters of newborns from dichorionic twin pregnancies
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Abstract
Objectives: The aim of the study was to determine if, and to what extent, structural and functional changes of the secundines influence biometric parameters of neonates from dichorionic twin pregnancies.
Material and methods: The study included neonates from dichorionic, diamniotic twin pregnancies, along with their secundines. Based on histopathological examination of the secundines, the mass and dimensions of the placenta, length and condition of the umbilical cord, chorionicity, focal lesions, and microscopic placental abnormalities were determined for 445 pairs of twins. Morphological development of examined twins was characterized on the basis of their six somatic traits, while birth status of the newborns was assessed based on their Apgar scores. Statistical analysis included Student t-tests, Snedecor’s F-tests, post-hoc tests, non-parametric chi-squared Pearson’s tests, and determination of Spearman coefficients
of rank correlation.
Results: The lowest values of analyzed somatic traits were observed in twins who had placentas with velamentous or marginal cord insertion. Inflammatory lesions in the placenta and placental abruption turned out to have the greatest impact of all analyzed abnormalities of the secundines. Inflammatory lesions in the placenta were associated with lower values of biometric parameters and a greater likelihood of preterm birth. Neonates with a history of placental abruption were characterized by significantly lower birth weight and smaller chest circumference.
Conclusions: Morphological changes in the secundines have a limited impact on biometric parameters of neonates from dichorionic twin pregnancies. In turn, functional changes exert a significant effect and more often contribute to impaired fetal development.
Abstract
Objectives: The aim of the study was to determine if, and to what extent, structural and functional changes of the secundines influence biometric parameters of neonates from dichorionic twin pregnancies.
Material and methods: The study included neonates from dichorionic, diamniotic twin pregnancies, along with their secundines. Based on histopathological examination of the secundines, the mass and dimensions of the placenta, length and condition of the umbilical cord, chorionicity, focal lesions, and microscopic placental abnormalities were determined for 445 pairs of twins. Morphological development of examined twins was characterized on the basis of their six somatic traits, while birth status of the newborns was assessed based on their Apgar scores. Statistical analysis included Student t-tests, Snedecor’s F-tests, post-hoc tests, non-parametric chi-squared Pearson’s tests, and determination of Spearman coefficients
of rank correlation.
Results: The lowest values of analyzed somatic traits were observed in twins who had placentas with velamentous or marginal cord insertion. Inflammatory lesions in the placenta and placental abruption turned out to have the greatest impact of all analyzed abnormalities of the secundines. Inflammatory lesions in the placenta were associated with lower values of biometric parameters and a greater likelihood of preterm birth. Neonates with a history of placental abruption were characterized by significantly lower birth weight and smaller chest circumference.
Conclusions: Morphological changes in the secundines have a limited impact on biometric parameters of neonates from dichorionic twin pregnancies. In turn, functional changes exert a significant effect and more often contribute to impaired fetal development.
Keywords
velamentous cord insertion; marginal cord insertion; limited maternofetal exchange; inflammatory lesions of the secundines; placental abruption
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About this articleTitle
Effect of morphological and functional changes in the secundines on biometric parameters of newborns from dichorionic twin pregnancies
Journal
Issue
Article type
Research paper
Pages
755-762
Published online
2016-11-30
Page views
1226
Article views/downloads
1535
DOI
Pubmed
Bibliographic record
Ginekol Pol 2016;87(11):755-762.
Keywords
velamentous cord insertion
marginal cord insertion
limited maternofetal exchange
inflammatory lesions of the secundines
placental abruption
Authors
Małgorzata Waszak
Krystyna Cieślik
Marek Pietryga
Jacek Lewandowski
Marek Chuchracki
Ewa Nowak-Markwitz
Grzegorz Bręborowicz
