Cited by 408Pregnancy and preeclampsia studiesNeonatal Respiratory Health ResearchMaternal and Perinatal Health Interventions

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The ultrasonic changes in the maturing placenta and their relation to fetal pulmonic maturity

Grannum, Peter A.T., Berkowitz, Richard L., Hobbins, John C.·1979·American Journal of Obstetrics and Gynecology

DOI 10.1016/0002-9378(79)90312-0

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Abstract

A practical classification of placental maturity changes has been developed based on a review of multiple ultrasound evaluations of placental texture over a 4 year period. This classification grades placentas from 0 to 3 according to specific ultrasonic findings at the basal and chorionic plates as well as within the substance of the organ itself. The placentas of 129 patients were graded according to this system at the time of ultrasound evaluation. Eighty-six patients had placentas classified as Grade 1 or greater and all of these had lecithin-sphingomyelin (L/S) ratio determinations performed. Mature L/S ratios (2.0) were found in 68% of Grade I (21/31), 88% of Grade II (28/32), and 100% of Grade III placentas (23/23). These results suggest a correlation between maturational changes of the placenta as seen by ultrasound and fetal pulmonic maturity as indicated by L/S ratio.

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Authors: Grannum, P. A. T., Berkowitz, R. L., & Hobbins, J. C.
Affiliations: Yale University (US)
Corresponding author: Grannum, Peter A.T.
ORCID: Berkowitz, Richard L.
Venue: American Journal of Obstetrics and Gynecology
Publisher: Elsevier BV
Published: 1979-04
Volume: 133
Issue: 8
Pages: 915-922
ISSN: 0002-9378 (ISSN-L)
DOI: 10.1016/0002-9378(79)90312-0
OpenAlex: W1871835765
Cited by: 408
References: 7
Citations by year: 2026: 9 · 2025: 7 · 2024: 7 · 2023: 12 · 2022: 10 · 2021: 14 · 2020: 11 · 2019: 15 · 2018: 11 · 2017: 14 · 2016: 19 · 2015: 16 · 2014: 9 · 2013: 6 · 2012: 17
FWCI: 17.01
Type: journal article
Language: en
Open access: closed
Licence: www.elsevier.com/tdm/userlicense/1.0/ (tdm)
www.elsevier.com/legal/tdmrep-license (tdm)
Locations: American Journal of Obstetrics and Gynecology (publishedVersion)
PubMed (publishedVersion)
Topics: Health Sciences › Medicine › Obstetrics and Gynecology › Pregnancy and preeclampsia studies
Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Neonatal Respiratory Health Research
Health Sciences › Medicine › Obstetrics and Gynecology › Maternal and Perinatal Health Interventions
Keywords: placental maturity, placental ultrasound, fetal lung maturity, lecithin/sphingomyelin ratio, chorionic plate, basal plate, fetal lung maturation
MeSH terms: Amniotic Fluid, Classification, Female, Fetus, Humans, Lung, Phosphatidylcholines, Placenta, Pregnancy, Sphingomyelins, Ultrasonography

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The ultrasonic changes in the maturing placenta and their relation to fetal pulmonic maturity

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