o_1977r8vv9vk1ts2ms0kd8pksa.pdf

392 D. Maulik, R. Figueroa
and 36 weeks' gestation with small for gestational age
fetuses to study whether the frequency of fetal surveillance
could be safely reduced in the cases with
normal umbilical artery Doppler [18]. In comparison
with those who had fortnightly surveillance, those
undergoing twice-weekly fetal surveillance were delivered
4 days earlier (264 vs 268 days; p = 0.04) and
were more likely to have labor induced (n=70, 82%,
vs n=54, 66%; p=0.02). There were no differences in
the neonatal outcome between the groups. Given the
small sample size associated with preliminary nature
of the study the authors prudently advised a larger
trial for a more definitive recommendation.
Williams and associates [19] conducted a prospective
randomized study where 1,360 at risk women at
³32 weeks of gestation were randomized to either
umbilical artery Doppler studies or nonstress testing.
Women with umbilical artery S/D ratios > 90 th percentile
or equivocal nonstress testing had the amniotic
fluid index determined. Induction of labor and delivery
were recommended when the amniotic fluid index
was