What is pseudo sinusoidal pattern?
Pseudo-sinusoidal fetal heart rate (pseudo-SHR) pattern, characterised by intermittent episodes of sinusoidal heart rate and normal fetal heart rate (FHR), is considered benign although its pathophysiologic mechanism remains obscure.
What causes pseudo sinusoidal pattern?
FETAL CONDITIONS ASSOCIATED WITH SHR PATTERN: SHR pattern has been reported with the following fetal conditions: (1) severe fetal anemia of several etiologies; (2) effects of drugs, particularly narcotics; (3) fetal asphyxia/hypoxia; (4) fetal infection; (5) fetal cardiac anomalies; (6) fetal sleep cycles; and (7) …
What is a sinusoidal pattern fetal heart rate?
SINUSOIDAL PATTERN It is also characterized by a stable baseline heart rate of 120 to 160 bpm and absent beat-to-beat variability. It indicates severe fetal anemia, as occurs in cases of Rh disease or severe hypoxia.
What is pseudo sinusoidal CTG?
The pseudo sinusoidal pattern is a false sinusoidal pattern. While it may on outward appearance share some features of the sinusoidal pattern, it is not as smooth and is not regular. The hallmark feature of a pseudo sinusoidal trace is the appearance of some period of normal baseline variability and accelerations.
How long does sinusoidal pattern last?
These authors noted that SHR pattern appeared approximately 19 min following alphaprodine administration and persisted for approximately 60 min. All infants were delivered with normal 5-minute Apgar scores without any perinatal deaths. In 27 cases of sinusoidal FHR pattern during labor, Ayromlooi et al.
Can narcotics cause sinusoidal pattern?
Other narcotics, such as butorphanol and nalbuphine, cause a sinusoidal fetal heart rate pattern that can mimic signs of hypoxia, although these drugs do not cause hypoxic injury.
How long does a sinusoidal pattern last?
What does FMP mean on a CTG?
Figure 1 Hewlett-Packard M-1350-A cardiotocogram with fetal movement profile (FMP). movements as well as fetal heart rate; this would negate the need to record fetal movements by ultrasound, which is very time-consuming. However, the accuracy of the actograph in identifying fetal movements is not known.
Is sinusoidal a Category 3?
NICHD Category III (CIII) fetal heart rate tracing (FHR) is defined as having either sinusoidal pattern or absent baseline variability plus recurrent late decelerations, recurrent variable decelerations, or bradycardia.
