The study of maternal and fetal plasma catecholamines levels during pregnancy and delivery
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W. Li
Abstract
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.
Copyright (c)1999 by Walter de Gruyter GmbH & Co. KG
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- The study of morphology and circulation of early embryo by three-dimensional ultrasound and power Doppler
- The merit of routine cord blood pH measurement at birth
- The influence of maternal erythrocyte deformability on fetal growth, gestational age and birthweight
- Reproductive choice in individuals HIV-1 infected in South Eastern Italy
- The sensitivity of the trivariate analysis using maternal serum alpha-feto protein, human chorionic gonadotrophin and maternal age in screening for fetal aneuploidy in mothers above the age of 35
- Neonatal and pediatric outcome of infants born to mothers with Antiphospholipid Syndrome
- Changes in cervical resistance and collagen fluorescence during gestation in rats
- The study of maternal and fetal plasma catecholamines levels during pregnancy and delivery
- Is adolescent pregnancy associated with adverse perinatal outcome?
- Physical exercise during pregnancy - physiological considerations and recommendations
- Endothelin-1 levels in infants with pulmonary hypertension receiving extracorporeal membrane oxygenation
- Maternal and neonatal outcome of twin pregnancies complicated by single fetal death
- A fatal case of congenital disseminated langerhans cell histiocytosis
- Treatment of severe postpartum hemorrhage by rectally administered gemeprost pessaries
