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KMID : 0357920110450010036
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Korean Journal of Pathology
2011 Volume.45 No. 1 p.36 ~ p.44
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Pathologic Differences between Placentas from Intrauterine Growth Restriction Pregnancies with and without Absent or Reversed End Diastolic Velocity of Umbilical Arteries
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Yoo Chang-Young
Jang Dong-Gyu
Jo Yun-Sung
Yoo Jin-Young
Lee Guisera
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Abstract
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Background : Abnormal umbilical artery Doppler velocimetry is one of the important findings of intrauterine growth restriction (IUGR) and IUGR is associated with high perinatal morbidity and mortality. In addition, this abnormal Doppler velocimetry is correlated with placental insufficiency. The aim of this study was to determine the pathologic differences in the placentas from IUGR pregnancies with and without the absent or reversed end diastolic velocity (AREDV).
Methods : Among the cases that had undergone prenatal follow-up in our institute, a retrospective slide review was conducted for 18 cases of IUGR with AREDV and 17 cases with IUGR that had normal end-diastolic flow of the umbilical artery.
Results : The birth weight and the other clinical parameters were not different among the two groups. Grossly, the placental wei ght percentiles were significantly smaller in AREDV group when they were adjusted according to gestational age. Histologically, chronic deciduitis, mural hypertrophy of the decidual arteries, an intimal fibrin cushion of the large fetal vessels, increased syncytial knots, villous agglutinations, avascular villi, villous stromal-vascular karyorrhexis, and acute atherosis were more frequently found in the AREDV group and their presence showed statistical significance.
Conclusions : These findings suggest that pathologic abnormalities due to fetal and maternal vasculopathies in the placenta may be the cornerstone for inducing AREDV in the umbilical artery.
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KEYWORD
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Fetal growth retardation, Umbilical arteries, Doppler velocimetry, Placenta, Pathology
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