Inclusion Criteria:  > 37 weeks uncomplicated singleton pregnancy Elective cesarean delivery Cesarean section under regional anesthesia  Exclusion Criteria:  < 37 weeks pregnancy Surgery performed under general anesthesia Emergent cesarean Multiple pregnancy Medically unstable mother or fetus Uncontrolled maternal diabetes Major congenital malformation of chromosomal abnormality of the fetus Intrauterine growth retardation Prenatal asphyxia suspicion True knot in the umbilical cord İn case of meconium aspiration syndrome suspicion