Possibilities of ultrasound diagnostics of structural disorders of placenta

Zakharov, S. M.; Чечнева, М. А.; Будыкина, Т. С.

doi:10.17116/rosakush20191906116

Cited by 2 publications

(1 citation statement)

References 22 publications

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“…По данным литературы [9] Согласно клиническим рекомендациям [12,13], 50-й перцентиль пульсационного индекса артерий пуповины равен 1,21 на сроках второго ультразвукового скрининга и 0,965 на сроках третьего скрининга. В нашем исследовании были получены идентичные средние значения пульсационного индекса: при втором ультразвуковом скрининге 1,13±0,1 и при третьем 0,95±0,1, что укладывается в показатели нормы.…”

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Specific features of human placenta anatomy in pregnancy achieved by in vitro fertilization

Mitrofanova,

Lutsai,

Sirik

2023

Science and Innovations in Medicine

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Aim to evaluate the qualitative and quantitative morphological characteristics of placentas of pregnant women after in vitro fertilization (IVF) registered in the prenatal period and after birth. Material and methods. The retrospective study of medical records of pregnant and puerperia women focused on the chorion and placenta parameters registered by ultrasound examinations in the I, II, III trimesters. The patients' inclusion criteria were singleton pregnancy and birth at 37-41 weeks' gestation. The types of assisted reproductive technologies and delivery were not specified in this study. The patients were divided into 2 groups according to their age: 1 Group I period of adulthood, 2 Group II period of adulthood. The postpartum placenta morphometry included registration of shape, diameter, weight, thickness of the placenta, the place of attachment and length of the umbilical cord, the type of vessels branching. Results. 1. The ultrasound characteristics of the placenta anatomy during pregnancy achieved by IVF are generally normal and do not have specific features. The pathological location of the chorion in the uterine cavity in the first trimester of pregnancy is characterized by a risk factor the older age group. The weight of the placenta during full-term pregnancy after in vitro fertilization is higher than normal, its average area is larger due to a decrease in thickness. A large proportion of pathological (sheath) attachment of the umbilical cord can lead to more frequent complications of pregnancy acute placental insufficiency.

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Section: Discussionunclassified

Specific features of human placenta anatomy in pregnancy achieved by in vitro fertilization

Mitrofanova,

Lutsai,

Sirik

2023

Science and Innovations in Medicine

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Novel Ultrasound Technologies in Assessing the State of the Mother–placenta–fetus System

Zalesskaia,

Zubareva,

Dobrokhotova

et al. 2023

Acta med. Eurasica

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The leading process in early pregnancy is forming the mother–placenta–fetus system. The central link of the mother–placenta–fetus system is the placenta. The structural features of the placenta reflect complex relationship between the mother's body and the fetus. Disorder in forming and functioning of the placenta underlies the development of complications such as early termination of pregnancy, placental insufficiency, fetal growth retardation syndrome, preeclampsia, premature birth. In this regard, an integrated approach in studying the hemodynamic system of mother–placenta–fetus is of particular importance. Ultrasound examination remains one of the most promising diagnostic methods. The aim of the study is to increase the effectiveness of diagnosis and prediction of gestational complications associated with violation of hemodynamic parameters in the mother–placenta–fetus system. Materials and methods. The study included 40 patients between the 30th and 32nd weeks of pregnancy with a singleton spontaneous pregnancy: 20 patients with normal course of pregnancy and 20 patients with a diagnosis of placental insufficiency. Ultrasound examination included standard echography in B-mode, color Doppler mapping and the use of modern techniques – three-dimensional imaging technology and innovative techniques of high-precision microvascular imaging SMI (Superb Micro-Vascular Imaging). Results and discussion. In patients with normal pregnancy, a variant of a three-dimensional model of the vascular network with a complex massive vascular network prevailed, whereas in the group with placental insufficiency, a three-dimensional vascular model looked simple: several intertwined vessels. Visual assessment of the placental vascular tree using SMI technology revealed the absence of a clear vascular pattern in the area of interest in patients with placental insufficiency, whereas active placental blood flow was determined in patients with normal pregnancy. Conclusions. The use of modern ultrasound technologies enables to obtain information about the state of placental blood flow, which gives the opportunity to diagnose the development of placental insufficiency in a timely manner.

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Possibilities of ultrasound diagnostics of structural disorders of placenta

Cited by 2 publications

References 22 publications

Specific features of human placenta anatomy in pregnancy achieved by in vitro fertilization

Specific features of human placenta anatomy in pregnancy achieved by in vitro fertilization

Novel Ultrasound Technologies in Assessing the State of the Mother–placenta–fetus System

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