title: A thick placenta: a predictor of adverse pregnancy outcomes.
abstract: OBJECTIVE
  The aim of this study is to evaluate the efficacy of an ultrasonographic measurement of placental thickness and the correlation of a thick placenta with adverse perinatal outcome.
  
  
  METHODS
  Placental thickness was measured in single gravidas, 16 to 40 weeks of gestation, between 2005 and 2009. Placentas were considered to be thick if their measured thickness were above the 95th percentile for gestational age.
  
  
  RESULTS
  The incidence of thick placentas was 4.3% (138/3,183). Perinatal morbidity and neonatal conditions were worse in cases with thick placenta rather than without thick placenta.
  
  
  CONCLUSIONS
  Ultrasonographic measurement of placental thickness is a simple method to estimate placental size. Thick placenta may be a useful predictor of adverse pregnancy outcomes.
authors: Department of Obstetrics and Gynecology, Yamaguchi Grand Medical Center, 77 Oosaki, Houhu, 747-8511 Japan.
authors: Ichiro
authors: I
authors: Miwa
authors: Department of Obstetrics and Gynecology, Yamaguchi Grand Medical Center, 77 Oosaki, Houhu, 747-8511 Japan.
authors: Masakatsu
authors: M
authors: Sase
authors: Department of Obstetrics and Gynecology, Yamaguchi Grand Medical Center, 77 Oosaki, Houhu, 747-8511 Japan.
authors: Mayumi
authors: M
authors: Torii
authors: Department of Obstetrics and Gynecology, Yamaguchi Grand Medical Center, 77 Oosaki, Houhu, 747-8511 Japan.
authors: Hiromi
authors: H
authors: Sanai
authors: Department of Obstetrics and Gynecology, Yamaguchi Grand Medical Center, 77 Oosaki, Houhu, 747-8511 Japan.
authors: Yasuhiko
authors: Y
authors: Nakamura
authors: Department of Obstetrics and Gynecology, Yamaguchi Grand Medical Center, 77 Oosaki, Houhu, 747-8511 Japan.
authors: Kazuyuki
authors: K
authors: Ueda
keywords: Measurement of placental thickness; Perinatal outcome; Thick placenta; Ultrasonography