deceleration

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Related to late deceleration: variable deceleration

deceleration

[dē‚sel·ə′rā·shən]
(mechanics)
The rate of decrease of speed of a motion.
References in periodicals archive ?
These include the nonreactive NST with normal biophysical profile and the reactive NST with late deceleration.
23) Therefore, if late deceleration patterns are present, the fetus should be delivered as soon as possible.
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.
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.
Evaluating for the presence of these factors is important and can be most helpful with recurrent late decelerations, as these patterns in general are poorly predictive for acidemia.
Austin, or some other physician, of the late decelerations and the damage being done to the fetus.
It is best to focus on actual findings instead, noting such things as a prolonged second stage, late decelerations, and non- reassuring patterns.
Periodic FHR changes included five defined FHR changes, namely accelerations, early decelerations, late decelerations, variable decelerations, and sinusoidal pattern.
After 2 more hours, the FHR tracing lacks variability, with late decelerations and no spontaneous accelerations--a Category 3 tracing, which is predictive of abnormal acid-base status.

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