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Fetal Copeptin After Oxytocin Challenge Test — CopOCT  

Pregnancy Clinical Trial

Official title:
Fetal Copeptin After Oxytocin Challenge Test

Clinical Trial Summary

The relationship of uterine contractions on fetal copeptin levels in umbilical cord blood is studied.

Clinical Trial Description

Background: Vaginal delivery evokes a dramatic surge in stress hormones facilitating the transition of the infant to extra-uterine life. Infants born by elective cesarean section (C-section) are known to have a higher risk for compromised birth adaptation. Labor is vital for vaginal delivery and triggers fetal stress hormone release. Fetal plasma copeptin, a surrogate marker of arginine vasopressin, has been found to be 100 to 1000-fold increased after vaginal delivery as compared to elective C-section. However, the relationship of labor intensity and fetal stress hormone release is largely unknown.

Objective: The purpose of this study is to determine fetal copeptin in newborns delivered by C-section to mothers who had an oxytocin challenge test (OCT) just prior to birth as compared to those without OCT.

Protocol: Pregnant women at term are eligible to participate if no uterine contractions are reported within the last 24 hours and no contractions are recorded in cardiotocogram over 30 minutes. Further inclusion and exclusion criteria see below. After written informed consent, all participants get an infusion line and participants receive OCT or placebo. The OCT is standardized as follows: 5 IE Syntocinon (oxytocin) in 500 mL Ringer, infusion rate begins with 12 ml/h and is increased by steps of additional 12 ml/h until three contractions within ten minutes are recorded. Subsequently, infusion is stopped. The placebo is Ringer infusion without Syntocinon. C-section is done about 1 to 3 hours after OCT or placebo and arterial umbilical cord blood is collected at birth. Maternal and newborn data are recorded within the first few days after birth, including maternal blood loss, neonatal adaptation, and postnatal weight loss. ;

Study Design

Observational Model: Case Control, Time Perspective: Cross-Sectional

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT01962701
Study type Observational
Source University of Zurich
Contact
Status Completed
Phase N/A
Start date January 2013
Completion date June 2014
View Details
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