W. Li, Z. Weiyuan, Z. Yanhui
The study of maternal and fetal plasma catecholamines levels during pregnancy and delivery
Background: To study maternal and fetal plasma levels
of catecholamines (CA) during pregnancy and delivery,
especially changes in CA levels during fetal distress and
conditions of different modes of delivery.
Methods: Maternal and fetal plasma NE, E and DA
levels were determined by high performance liquid
chromatography (HPLC) for 16 non-pregnant women,
19 cases of early pregnancy, 17 cases of mid pregnancy,
late pregnancy, spontaneous vaginal delivery and 53
cases of cesarean section.
Results: Plasma NE and DA levels decreased gradually
with the advance of gestational weeks, and levels of plasma NE were significantly lower than those of non-pregnant
women (P < 0.05). The levels of plasma CA
in patients who had elective cesarean section were significantly
lower than those who had vaginal delivery
and emergency cesarean section (P < 0.01). However,
CA levels of the cord artery in the vaginal delivery
group were significantly higher than those in the cesarean
section group (P < 0.01).
Conclusion: Vaginal delivery is better than cesarean
section for the newborn. If cesarean section is necessary,
it is best for the newborn after onset of labor.
Journal of Perinatal Medicine, Walter de Gruyter
Print ISSN: 1619-3997
Volume: 27, 07/1999
Pages: 195 - 198
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