DR. RAZAQ O. MASHA, FRCOG
Consultant, Ob/Gyn Dept.
Breech presentation occurs in 3-4% of
all deliveries. The percentage of
breech deliveries decreases with
advancing gestational age from 25% of
births prior to 28 weeks gestation to 7%
of births at 32 weeks gestation to 1-3%
of births at term
PREDISPOSING FACTORS
 Prematurity
 Uterine malformations or fibroids
 Placenta praevia
 Fetal abnormalities, (e.g. CNS
malformations, neck masses)
 Multiple gestations
Fetal abnormalities are observed in 17% of preterm
breech deliveries and 9% of term breech deliveries.
Perinatal Mortality is increased 2-4 fold with breech
presentation, regardless of the mode of delivery.
Deaths are most often associated with malformations,
prematurity and intrauterine fetal demise.
TYPES OF BREECHES:
 Frank breech (50-70%) – Hips flexed,
knees extended
 Complete breech (5-10%) – Hips
flexed, knees flexed
 Footling or incomplete (10-30%) One
or both hips extended, foot presenting
EXTERNAL CEPHALIC VERSION (ECV)
This is the trans-abdominal manual rotation of
the fetus into a cephalic presentation.
 Improved outcome may be related to the
use of non stress tests both before and
after ECV
 Improved selection of low-risk fetuses
 Rh immune globulin to prevent
isoimmunization
PROCEDURE:
 Prepare for the possibility of
caesarean delivery.
 Perform a non-stress test – to
confirm fetal well being.
 Perform the ECV, in or near a
delivery suite
 After ECV, repeat the non-stress
test.
 Administer Rh immune globulin to
women who are Rh- negative
RISKS:
 Precipitation of labour or premature
rupture of membranes
 Abruptio placentae
 Feto-maternal haemorrhage
 Cord entanglement
 Fractured fetal bones
CONTRAINDICATIONS:
 Multiple gestations
 Contra indications to vaginal
delivery (e.g. herpes simplex virus
infection, placenta praevia)
 Non reassuring fetal heart rate
tracing
VAGINAL BREECH DELIVERY
The three types of vaginal breech deliveries
are described:
 Spontaneous breech delivery. No
traction or manipulation of the infant is
used. This occurs predominantly in very
preterm deliveries.
 Assisted breech delivery: The most
common type of vaginal breech delivery.
 Total breech extraction. Use for a non
cephalic second twin and caesarean
deliveries
RISKS:
♣ Lower apgar scores
♣ Fetal head entrapment
♣ Cervical spine injury
♣ Cord prolapse

24-breech.ppt breech presentation mechanism

  • 1.
    DR. RAZAQ O.MASHA, FRCOG Consultant, Ob/Gyn Dept.
  • 2.
    Breech presentation occursin 3-4% of all deliveries. The percentage of breech deliveries decreases with advancing gestational age from 25% of births prior to 28 weeks gestation to 7% of births at 32 weeks gestation to 1-3% of births at term
  • 3.
    PREDISPOSING FACTORS  Prematurity Uterine malformations or fibroids  Placenta praevia  Fetal abnormalities, (e.g. CNS malformations, neck masses)  Multiple gestations Fetal abnormalities are observed in 17% of preterm breech deliveries and 9% of term breech deliveries. Perinatal Mortality is increased 2-4 fold with breech presentation, regardless of the mode of delivery. Deaths are most often associated with malformations, prematurity and intrauterine fetal demise.
  • 4.
    TYPES OF BREECHES: Frank breech (50-70%) – Hips flexed, knees extended  Complete breech (5-10%) – Hips flexed, knees flexed  Footling or incomplete (10-30%) One or both hips extended, foot presenting
  • 5.
    EXTERNAL CEPHALIC VERSION(ECV) This is the trans-abdominal manual rotation of the fetus into a cephalic presentation.  Improved outcome may be related to the use of non stress tests both before and after ECV  Improved selection of low-risk fetuses  Rh immune globulin to prevent isoimmunization
  • 6.
    PROCEDURE:  Prepare forthe possibility of caesarean delivery.  Perform a non-stress test – to confirm fetal well being.  Perform the ECV, in or near a delivery suite  After ECV, repeat the non-stress test.  Administer Rh immune globulin to women who are Rh- negative
  • 7.
    RISKS:  Precipitation oflabour or premature rupture of membranes  Abruptio placentae  Feto-maternal haemorrhage  Cord entanglement  Fractured fetal bones
  • 8.
    CONTRAINDICATIONS:  Multiple gestations Contra indications to vaginal delivery (e.g. herpes simplex virus infection, placenta praevia)  Non reassuring fetal heart rate tracing
  • 9.
    VAGINAL BREECH DELIVERY Thethree types of vaginal breech deliveries are described:  Spontaneous breech delivery. No traction or manipulation of the infant is used. This occurs predominantly in very preterm deliveries.  Assisted breech delivery: The most common type of vaginal breech delivery.  Total breech extraction. Use for a non cephalic second twin and caesarean deliveries
  • 10.
    RISKS: ♣ Lower apgarscores ♣ Fetal head entrapment ♣ Cervical spine injury ♣ Cord prolapse