title: A reevaluation of placental grading and its clinical significance.
abstract: Pregnancies complicated by preeclampsia or intrauterine growth retardation have an earlier and faster placental maturation than normal. This is demonstrated in a study of 1,096 obstetrical examinations of 473 non-diabetic mothers. It is recommended that a pregnancy demonstrating grade I maturational changes prior to 27 weeks, grade II changes prior to 32 weeks, or especially grade III changes prior to 34 weeks be followed clinically and ultrasonically for possible complications.
mesh_terms: D005260:Female; D005317:Fetal Growth Retardation / Q000473:pathology; D005865:Gestational Age; D006801:Humans; D010920:Placenta / Q000473:pathology*; D011225:Pre-Eclampsia / Q000473:pathology; D011247:Pregnancy; D011248:Pregnancy Complications / Q000473:pathology*; D012306:Risk; D014463:Ultrasonography