Eureka is a city in McPherson County, South Dakota, United States. The population was 868 at the 2010 census. Eureka is located at 45Â°46â²9â³N 99Â°37â²19â³W / 45.76917Â°N 99.62194Â°W / 45.76917; -99.62194 (45.769069, -99.621953).
Placental abruption (also known as abruptio placentae) is a complication of pregnancy, wherein the placental lining has separated from the uterus of the mother prior to delivery.
Placental abruption (placenta detaches prematurely from the uterus). Unknown cause. Placenta previa is a condition in which the placenta is attached close to or covering the cervix (opening of the uterus). Placenta previa occurs in about one in every 200 live births.