What is the characteristic of an accreta type of invasive placenta?

An accreta type of invasive placenta is characterized by implantation of the placenta into the myometrium. In cases of placenta accreta, the placental villi adhere too deeply into the uterine wall, which means that they penetrate beyond the normal implantation site involving the decidua and into the myometrium itself. This deeper invasion is what distinguishes accreta from other conditions of abnormal placentation, such as placenta previa or placenta increta, where the degree of invasion varies.

Understanding this characteristic is crucial for clinicians, as it significantly impacts management during delivery and can pose risks for severe hemorrhage and complications if not properly addressed. Knowledge of the precise type of placentation is vital for planning surgical intervention and assessing the need for potential blood transfusions or surgical measures to manage potentiate complications.