Fetal Cardiac Effects of Tocolytic Nifedipine and Magnesium Sulfate

Comparison of Fetal Cardiac Functions in Pregnant Women Using Nifedipine and Magnesium Sulfate for Tocolysis

The potential unexpected effects of nifedipine and MgSO4, the tocolytic agents used for the indication of preterm labor, on fetal heart will be determined. In this study, the fetal echocardiographic findings of nifedipine and MgSO4 will be compared.

This study will include pregnancies at 24-34 weeks of gestation that are using nifedipine and MgSO4 for tocolysis. Fetal echocardiographic findings of these pregnancies will be recorded

Inclusion Criteria:-Patients with preterm labor indication at 24-34 weeks of gestation

-Treated with nifedipine or MgSO4 for tocolysis

Exclusion Criteria:

• Multiple pregnancy
• premature rupture of membranes
• Chorioamnionitis
• Placental abruption
• Severe fetal growth restriction
• Congenital anomalies of the fetus
• Preeclampsia
• Oligohydramnios
• Maternal diabetes
• Contraindications for the use of nifedipine and/or MgSO4 in the mother