TY - CHAP M1 - Book, Section TI - Postterm Pregnancy A1 - Cunningham, F. Gary A1 - Leveno, Kenneth J. A1 - Dashe, Jodi S. A1 - Hoffman, Barbara L. A1 - Spong, Catherine Y. A1 - Casey, Brian M. Y1 - 2022 N1 - T2 - Williams Obstetrics, 26e AB - The adjectives postterm, prolonged, postdates, and postmature are used interchangeably to describe pregnancies that have exceeded a duration considered to be the upper limit of normal. We eschew use of the term postdates because the real issue in many postterm pregnancies is uncertainty in the estimated date of delivery (EDD). Postmature is reserved for the uncommon clinical fetal syndrome in which the newborn has recognizable features indicating a pathologically prolonged pregnancy. Thus, postterm or prolonged pregnancy is our preferred term for an extended pregnancy. SN - PB - McGraw Hill CY - New York, NY Y2 - 2024/03/29 UR - obgyn.mhmedical.com/content.aspx?aid=1190766930 ER -