2025年1月6日 · Fetal decelerations refer to short-term but clear decreases of the fetal heart rate (FHR) identified during fetal heart monitoring. They are classified into three categories according to their shape and timing related to uterine contractions: early, late, and variable decelerations.

In the normal fetus, there is an interplay between the sympathetic (acceleration) and parasympathetic (deceleration) nervous systems in the control of heart rate. These systems exert their control via the cerebral cortex, the medulla oblongata, the …

Variable decelerations are NOT good! Notice that every time mom has a contraction the baby’s heart rate majorly decreases. Remember a normal fetal heart rate is 110-160 bpms. The cause of the decrease fetal heart rate is due to umbilical cord compression.

2024年3月9日 · Three types of deceleration may occur: early, late, and variable. While early decelerations are usually normal, late and variable decelerations can point to a problem. Early deceleration describes the symmetrical decreases and return-to-normal of the fetal heart rate that is linked to uterine contractions.

2023年8月28日 · Decelerations are temporary decreases in the fetal heart rate (FHR) during labor. Hon and Quilligan first described three types of decelerations (early, variable, and late) in 1967 based on the shape and timing of decelerations relative to uterine contractions.[1] Intrapartum FHR monitoring allows for the identification of changes associated with fetal …

Fetal heart rate patterns are classified as reassuring, nonreassuring or ominous. Nonreassuring patterns such as fetal tachycardia, bradycardia and late decelerations with good short-term...

Fetal heart rate (FHR) decelerations are the commonest aberrant feature on cardiotocographs and considered “center-stage” in the interpretation of EFM.

2018年1月10日 · Decelerations are temporary drops in the fetal heart rate. There are three basic types of decelerations: early decelerations, late decelerations, and variable decelerations.

Fetal heart rate (FHR) recordings are the only non‐invasive tool that we have to continuously monitor the wellbeing of fetuses during labour. Recordings are most commonly derived from a Doppler ultrasound transducer on the maternal abdomen that measures the contractions of …

The first type of hypoxia was described to develop progressively over time and to be labeled by a sequence of fetal events observed in the CTG: decelerations, the disappearance of accelerations, the increase in baseline HR, and the loss of variability preceding fetal decompensation.