title: Placental site, parity, and date of quickening.
abstract: The influence of placental site and parity on the date of quickening was studied in 112 gravidas. With placental site on the anterior uterine wall, quickening occurred at a mean gestational age of 19 weeks in primigravidas, and 17 weeks, five days in multiparas. With placental site on the posterior uterine wall, quickening occurred at a mean gestational age of 18 weeks in primigravidas, and 16 weeks, one day in multiparas. It is concluded that placental site influences quickening independent of parity and that it is a major factor in determining the stage at which fetal movements are first felt.
mesh_terms: D005260:Female; D005323:Fetal Monitoring; D005333:Fetus / Q000502:physiology*; D005865:Gestational Age; D006801:Humans; D009068:Movement; D010298:Parity; D010920:Placenta / Q000033:anatomy & histology*; D011247:Pregnancy; D013997:Time Factors; D014463:Ultrasonography