title: Anterior placental location predisposes for occiput posterior presentation near term.
abstract: 325 sonographies were performed in singleton pregnancies past 36 weeks with the fetus in a vertex position in order to examine a possible association between placental localization and occiput posterior presentation (OP). OP was found in 11.6% of all cases. The distribution of the placental locations in the OP group differed significantly from the occiput anterior (OA) group. Also, an anterior placental location was seen significantly more often in the OP group.
authors.affiliation: Department of Obstetrics and Gynecology, Vaasa Central Hospital, Finland.
authors.forename: M
authors.initials: M
authors.lastname: Gardberg
authors.forename: M
authors.initials: M
authors.lastname: Tuppurainen
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007746:Labor Presentation; D010920:Placenta / Q000000981:diagnostic imaging*; D011247:Pregnancy; D011263:Pregnancy Trimester, Third; D016216:Ultrasonography, Prenatal