Delivery of the fetal head at cesarean section may
be sometimes extremely arduous, and serious
maternal and fetal complications may compound the
difficult delivery. Some practitioners use vacuum
extraction to assist delivery of the fetal head during a
cesarean [2, 11, 12]. This practice may decrease the
risk of extension of the uterine incision and may be
particularly helpful in the presence of high floating
head. However, Arads et al. [3] demonstrated a
prolongation of the U-D interval (the interval between
the final uterine incision and complete delivery) in
cases of vacuum extraction at a cesarean section.
This prolongation was due to the time required for
application of the vacuum cup and build up of negative
pressure. Prolongation of the U-D interval may have
an undesirable effect on the fetus. To decrease these
required time duration, we usually use the hospital
piped-vacuum supply, and develop the required
vacuum (300 mmHg) for ventouse delivery by
connecting it with a suitable pressure reduction valve.