Women with variable and late deceleration
were more in our study compared to early deceleration, and this variable and late deceleration
was also more likely to have meconium stain liquor colour.
These include the nonreactive NST with normal biophysical profile and the reactive NST with late deceleration
are indicators of fetal hypoxia.(23) Therefore, if late deceleration
patterns are present, the fetus should be delivered as soon as possible.(24)
It used to be thought that late decelerations
were extremely worrisome, but we have learned that these patterns are usually less threatening to the fetus's accumulation of metabolic acidosis than are severe variable decelerations.
Non-reassuring 22 31.0 8 11.4 30 43 a) Late deceleration
12 17.1 4 5.7 16 22.8 b) Variable 10 14.0 2 3 12 17 c) Bradycardia -- -- 2 3 2 3 Total 26 44 70 Table-IV Mode of Delivery in Various Patterns in Cases With Risk Factor S.No.
A late deceleration
has a nadir that occurs after the peak of the contraction.
"You certainly wouldn't be able to pick up a late deceleration
using a Doptone, and you'd be pretty lucky to pick up a sporadic variable deceleration by using a Doptone."
While baseline changes and late decelerations
can be detected by intermittent auscultation, baseline variability cannot, and, for many, assessment by CTG would be an essential prerequisite for induction, and for the high-risk labour that follows.
If the ominous pattern persisted or if the indeterminable pattern and normal AT groups had significant variations as well as prolonged or late decelerations
in the absence of beat-to-beat variability, then cesarean section was performed.
For example, the sudden onset of recurrent, significant variable decelerations is more concerning in the context of a prior cesarean delivery, and late decelerations
are more concerning in a patient with placental abruption, fetal growth restriction, or poorly controlled maternal diabetes.
are associated with decreased uterine blood flow and are result of: hypoxia, cord compression, excessive uterine activity, maternal hypotension, etc.
* Recurrent Late Decelerations
. These patterns are believed to reflect uteroplacental insufficiency, which is usually caused by uterine tachysystole, maternal hypoxia, or maternal hypotension, the latter of which often occurs after the administration of regional anesthesia.