All procedureswere performed under ultrasound guidance using the free-hand technique. In practice, either a 20- or 22-gauge spinal needle was inserted into the largest amniotic pocket that was free from fetal parts and the umbilical cord.
All procedureswere performed under ultrasound guidance using thefree-hand technique. In practice, either a 20- or 22-gauge spinal needlewas inserted into the largest amniotic pocket that was free from fetalparts and the umbilical cord.