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Placental grading in the complicated or high‐risk pregnancy.
Author(s) -
Clair M R,
Rosenberg E,
Tempkin D,
Andreotti R F,
Bowie J D
Publication year - 1983
Publication title -
journal of ultrasound in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 91
eISSN - 1550-9613
pISSN - 0278-4297
DOI - 10.7863/jum.1983.2.7.297
Subject(s) - medicine , amniotic fluid , obstetrics , pregnancy , grading (engineering) , fetus , respiratory distress , gestation , placenta , high risk pregnancy , fetal distress , gynecology , surgery , engineering , biology , genetics , civil engineering
A classification of the changes seen in the placentas of nondiabetic, non‐high‐risk obstetrical patients, and its relationship to fetal pulmonary maturity, has been the subject of two recent reports. Successful (100 per cent) correlation has been concluded from these studies when a Grade III placenta has been demonstrated in gestations of 33 weeks to term. To determine whether the same high degree of reliability would hold for the diabetic and high‐risk obstetrical patient, 78 such patients were analyzed. All except one delivered at 33 weeks to term, and all had amniotic fluid lecithin‐sphingomyelin (L/S) ratio determinations within 48 hours of sonographic placental grading and within seven days of delivery. Of the Grade III placentas (n = 13), 23 per cent had "immature" L/S ratios. However, there was no case of infantile respiratory distress syndrome (IRDS) in infants of patients with Grade III placentas. These findings suggest that placental grading may need to be part of a multifactorial assessment of fetal maturity in the diabetic or high‐risk pregnancy.