Ximi Elga


Concepto de RCIU, Clasificación: PEG, RCIU. Etiología, Fisiopatología, Diagnóstico, Manejo, Pronóstico. Concept of IUGR, Classification: SGA. Dra. Sofía Córdoba V. Residente II Año Ginecología y Obstetricia HCG Tutor: Dr. Manrique Leal M. Fisiopatología del RCIU mediante el. 14 ago. Objetivos específicos: • Compreender a fisiopatologia da doença, sua RCIU: Gemelares monocoriônicos > Dicoriônicos > gestações únicas.

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The file contains 60 pages and is free to view, download or print. Dietary restriction after the 3rd day of pregnancy led to low placental glycogen concentrations on the 18th day and disappearance on the 21st day.

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The placentas were separated from their membranes, weighed and processed for histopathological study morphology and histochemistry. Fill out the form below to receive a free trial or learn more about access:.

Placental glycogen stores also decreased after the 18th day in the control groups and in the groups submitted to dietary restriction from the 1st day of pregnancy. Your institution must subscribe to JoVE’s Medicine section to access this content. Figure 3 – Percentage of small for gestational age newborn rats from the control group, the group submitted to dietary restriction from the 1st day and the group submitted to dietary restriction after the 3rd day of pregnancy, fisiopatollogia determined on the 18th and 21st days of pregnancy.


Quinta El Sol J Ped ;46 2: Please recommend JoVE to your librarian.

Basic studies and clinical implications. The present results permit us to explain the occurrence of IUGR due to protein-calorie malnutrition introduced after the 3rd day of pregnancy.

Evidence for altered placental blood flow and vascularity in compromised pregnancies. Faculdade de Medicina, Universidade Estadual Paulista. La huella es de 28 x 5,75 mm. Figure 1 – Mean weight of newborn rats from the control group, the group submitted to dietary restriction from the 1st day and the group submitted to dietary restriction after the 3rd day of pregnancy, as determined on the 18th and 21st days of pregnancy.

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Maternal protein-calorie malnutrition was the cause of IUGR in rats, with the following physiopathologic peculiarities:. Figure 2 – Mean weight of the placentas from the control groups, the group submitted to dietary restriction from the 1st day and the group submitted to dietary restriction after fisiopatklogia 3rd day of pregnancy, as determined on the 18th and 21st fisiopatlogia of pregnancy. How to cite this article. A subscription to J o VE is required to view this article.

Los resultados representativos de los estudios Doppler fetoplacentaria se muestran en la Figura 2. In the present study, between the 18th and the 21st day of pregnancy the placenta showed a decrease in membrane thickness in all groups Table 2 and Figures 6 and 7. In contrast, placental glycogen stores had already decreased by the 18th day of pregnancy in rats submitted to dietary restriction on the 3rd day of pregnancy Table 2 and Figures 6 and 7.

Since moderate diabetes is a model of fetal macrosomia, we may infer that maternal hyperglycemia causes fetal hyperglycemia and hyperinsulinism.

The continuation of maternal malnutrition up to the 21st day was associated with decreased fetal weight and increased incidence of intrauterine growth retardation even though placental weight was maintained and glycogen stores evolved normally.


Mechanotransduction of shear in the endothelium: The action of severe maternal hyperglycemia depletes the fetal pancreas, which loses the ability to produce insulin at the end of pregnancy.

The nature of the etiologic agent, the time when the attack occurred during pregnancy and its duration affect the type of IUGR. Endocrine regulation of human fetal growth: This leads to the removal of glycogen deposited in the placenta which, converted into energy, increases the weight of newborn rats.

Forty-one normoglycemic pregnant Wistar rats. Doppler velocimetry of the uterine artery as a screening test for gestational hypertension. Calderon 12 demonstrated that the endocrine pancreas of newborn rats with moderate diabetes has large islets with increased insulin production, as observed by immunohistochemistry using specific antibodies. In severe diabetes, a IUGR model, severe maternal hyperglycemia causes intense fetal hyperglycemia leading to depletion of fetal pancreatic function.

Ultrasonography in Experimental Reproductive Investigations on Rats. Histopathologic examination of the fetal pancreases did not shown the effects of maternal malnutrition Table 1 and Figures 4 and 5.

Br J Obstet Gynaecol. Calculation of food ingestion. The role of uterine artery Doppler in predicting adverse pregnancy outcome. Murine Echocardiography and Ultrasound Imaging. A more in-depth study of the placenta and pancreas of newborn rats has permitted the understanding of the deviations in fetal growth occurring in the presence of moderate and severe diabetes.

Fisiopatologia rciu pdf file

Changes in complicated pregnancies. An evaluation of the efficacy of Doppler flow velocity waveform analysis as a screening test in pregnancy.

Newborn rats with severe diabetes showed increased glycogen deposition in the placenta from the 18th to the 21st day of pregnancy.