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F49Subclassification of small‐for‐gestational‐age fetus using fetal Doppler velocimetry
Author(s) -
Kanenishi K.,
Yamashiro C.,
Tanaka H.,
Kuno A.,
Yanagihara T.,
Hata T.
Publication year - 2000
Publication title -
ultrasound in obstetrics and gynecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.202
H-Index - 141
eISSN - 1469-0705
pISSN - 0960-7692
DOI - 10.1046/j.1469-0705.2000.00015-1-49.x
Subject(s) - medicine , small for gestational age , fetus , obstetrics , umbilical artery , amniotic fluid , gestation , middle cerebral artery , gestational age , meconium , apgar score , amniotic fluid index , velocimetry , pregnancy , genetics , physics , ischemia , biology , optics
Background Our purpose was to determine whether small‐for‐gestational‐age (SGA) fetus can be divided to subclassified groups using fetal Doppler velocimetry. Method Fifty‐four pregnant women with SGA infant delivered after 37 weeks of gestation were studied. After 24 weeks of gestation, fetal middle cerebral artery pulsatility index (MCAPI) and umbilical artery pulsatility index (UAPI) were measured at 2‐to 3‐week intervals using Doppler ultrasound. Perinatal outcomes were compared in subclassifid SGA groups using fetal Doppler velocimetry. Results The number of SGA fetuses with normal MCAPI and UAPI (normal SGA group) was 39, and those with significantly low MCAPI but normal UAPI (eventful SGA group) 15, respectively. Birth age and birth weights in eventful SGA group were significantly earlier and lower than those in normal SGA group, respectively ( P < 0.05, and P < 0.005). There were significant increases in operative deliveries, abnormal FHR patterns and decreased amniotic fluid in eventful SGA group. However, there were no significant differences in meconium staining of amniotic fluid, low Apgar score, neonatal acidosis, and NICU admission between the two groups. Conclusion These results suggest that SGA fetus with abnormally low MCAPI but normal UAPI has more poor perinatal outcomes, compared with that with normal MCAPI and UAPI.