Fetal heart rate patterns and chronic exposure to antiepileptic drugs.

Abstract:

:Fetal heart rate (FHR) characteristics of fetuses exposed and not exposed to antiepileptic drugs (AEDs) were studied. FHR is considered to reflect central nervous system (CNS) integrity. Three intervals during pregnancy were investigated: 20, 32, and 38 weeks. At 32 and 38 weeks, FHR was studied in relation to quiet (C1F) and active (C2F) sleep periods. For each tracing, a baseline was determined and accelerations and decelerations were identified. To assess FHR variability, the long-term irregularity, interval difference and absolute beat-to-beat indexes, and the bandwidth were calculated for 30-s intervals between accelerations and decelerations. No marked differences were noted between study and control groups concerning basal FHR and the occurrence of accelerations. For FHR derived from the fetal ECG, all indexes of FHR variability and the bandwidth were lower for the study group as compared with the control group, although the differences did not reach statistical significance. Our study shows that chronic prenatal exposure to AEDs does not seriously interfere with modulation of fetal heart rhythm by the CNS.

journal_name

Epilepsia

journal_title

Epilepsia

authors

Swartjes JM,van Geijn HP,Meinardi H,Mantel R

doi

10.1111/j.1528-1157.1992.tb02353.x

subject

Has Abstract

pub_date

1992-07-01 00:00:00

pages

721-8

issue

4

eissn

0013-9580

issn

1528-1167

journal_volume

33

pub_type

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