Breech
presentation
is
defined
as
a
____________________
in
a
longitudinal
lie
____________________
the
buttocks
or
feet
closest
to
the
cervix
.
This
occurs
in
3
-
4%
of
all
deliveries
.
The
percentage
of
breech
____________________
decreases
with
advancing
gestational
age
____________________
22
-
25%
of
____________________
prior
to
28
weeks'
gestation
to
7
-
15%
of
births
at
32
weeks'
gestation
to
3
-
4%
of
births
at
term
.
Predisposing
factors
for
breech
presentation
____________________
prematurity
,
uterine
malformations
____________________
fibroids
,
polyhydramnios
,
placenta
previa
,
fetal
abnormalities
(
eg
,
CNS
malformations
,
neck
masses
,
aneuploidy
)
,
and
multiple
gestations
.
Fetal
abnormalities
are
observed
in
17%
of
preterm
breech
deliveries
and
in
9%
of
term
breech
deliveries
.
Perinatal
mortality
is
____________________
2
-
to
4
-
fold
with
breech
presentation
,
regardless
of
the
mode
of
delivery
.
____________________
are
most
often
associated
with
malformations
,
prematurity
,
and
____________________
fetal
demise
.
