Morphometric and morphological characteristics of the placenta at term, in small for gestational age newborns (SGA) in the city of Temuco-Chile Características morfológicas y morfométricas de la placenta de término, en recién nacidos pequeños para la edad

Abstract

The placental metabolism, the exchange of substances and the production of hormones are vital functions of the placenta to maintain and promote the normal development of the fetus. There are risk factors that disrupt this pattern in the case of intrauterine growth retardation, whose outcome will be a small for gestational age (SGA) newborn having a higher morbidity, physical and intellectual growth pledged and greater probability of develop different pathologies during adulthood. The aims of this study are: 1. -recognize the morphometric parameters differences as the área of the villi, the área of the vessel, the number of vessels and the área of placental syncytiotrophoblast SGA in connection with placentas of newborns AGA and 2.- relate the diagnosis of neonatal SGA with morphometric characteristics. We used 25 placenta at term (37-42 weeks), 12 newborns appropriate to the gestational age (AEG), and 13 small for gestational age infants (SGA). The samples were obtained from the Matern