Ávila DS, Alfaro MT, Olmedo SJ

Language: Spanish
References: 21
Page: 11-20
PDF size: 569.49 Kb.

ABSTRACT

The placenta is a complex organ responsible for the secretion of hormones and enzymes, transportation of nutrients and metabolic products and allows gas exchange. With increasing maternal age and caesarean sections the incidence of placenta previa and placental accretism has incrased, becoming both conditions in problems to modern obstetrics. Placenta previa refers to a placental implantation in the lower uterine segment, very near or with any degree of coverage of the internal cervical os. It usually presents as painless bleeding by the end of the 2nd trimester. Placental accretism refers to a placenta which presents an adhesion disorder or some degree of invasion either to the uterus or adjacent structures. Both conditions represent a risk of intrapartum hemorrhage with high maternal and fetal morbility associated. Next generalities about these pathologies are presented.

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