The likely success of external cephalic version for breech presentation can be predicted using a simple score based on clinical parameters.
Clinical parameters:
(1) maternal parity
(2) cervical dilatation
(3) estimated fetal weight
(4) placental location
(5) station
|
Parameter |
Finding |
Points |
|
parity |
0 |
0 |
|
|
1 |
1 |
|
|
>=2 |
2 |
|
dilatation |
>= 3 cm |
0 |
|
|
1 - 2 cm |
1 |
|
|
0 cm |
2 |
|
estimated fetal weight |
< 2500 grams |
0 |
|
|
2500-3500 grams |
1 |
|
|
> 3500 grams |
2 |
|
placenta |
anterior |
0 |
|
|
posterior |
1 |
|
|
lateral or fundal |
2 |
|
station of presenting part |
-1, 0, +1, +2 |
0 |
|
|
-2 |
1 |
|
|
-3 |
2 |
score =
= SUM(points for 5 parameters)
Interpretation:
• minimum score 0
• maximum score 10
• successful external version occurred in all cases where score >= 9
• no successful external versions occurred if score <= 2
|
Score |
Percent Successful External Version |
|
0 |
0% |
|
1 |
0% |
|
2 |
0% |
|
3 |
15% |
|
4 |
35% |
|
5 |
60% |
|
6 |
63% |
|
7 |
70% |
|
8 |
80% |
|
9 |
100% |
|
10 |
100% |
Specialty: Obstetrics & Gynecology
ICD-10: ,
