Summary:
The purpose of this study is Evaluation of cerebral umbilical
pulsatility ratio by color Doppler and to estimate the value of
pulsatility index ratio of cerebral umbilical vessels in the
diagnosis of small-for-gestational-age (SGA) fetuses and in
the prediction of adverse perinatal outcome . Validity of the
test were confirmed by determining sensitivity, specificity,
accuracy, positive predictive value, negative predictive value.
The study population comprised 40 pregnancies of 30-41
weeks gestation that had been diagnosed clinically as
intrauterine growth retardation (IUGR) over a period of 1
year. The cerebral - umbilical pulsatility ratio (C/U ratio)
were calculated. The pregnancies were followed up and the
final perinatal outcome of each case were noted. Various
intraparum and neonatal indicators were used to assess the
outcome, with an adverse outcome being defined as the
presence of one or more of these indicators. The most common
adverse perinatal outcome was birth asphyxia, low apgar
score, stay at NICU, still birth and caesarean section for fetal
distress. Of the 40 pregnancies in the study, 30 (75%) showed
abnormal C/U ratio. Among these, 32 (80%) were SGA and
32 (80%) had adverse perinatal outcome. Of the 30 out of 40
pregnancies that showed abnormal C/U ratio (<1.08), all 30
(80%) were SGA and had adverse perinatal outcome. The
results were correlated with parameters of fetal outcome.
Inferences drawn from the study was that C/U ratio is a tools
for prediction of SGA fetuses and adverse perinatal outcome.
Keywords: Intrauterine growth retardation, pulsatility index,
middle cerebral artery to umbilical artery pulsatility index
ratio.
(J Bangladesh Coll Phys Surg 2016; 34: 145-150)