Numbers 2 Flashcards
% death if MCDA twins have a discordant NT >20%
30%
UK CS rate
25%
15% EMCS
10% ELCS
VBAC - risk of rupture 1 previous CS
1:200
VBAC risk of rupture if 2 previous CS
1.7%
VBAC risk of rupture if previous uterine rupture
5%
VBAC risk of rupture if previous classical CS scar
12%
VBAC risk of rupture if preterm
<0.5%
VBAC risk of rupture with oxytocin
0.8%
VBAC risk of rupture with prostaglandins
2.4%
VBAC + induction increases risk of CS by
1.5x
VBAC success rate
72-75%
VBAC + 1 previous VD success rate
85-90%
VBAC + 2 prev CS success rate
71%
VBAC success rate if previous breech
84%
VBAC success rate if previous fetal distress
74%
VBAC success rate if previous labour dystocia
64%
VBAC success rate if previous CS for dystocia, no previous VD, BMI >30 and IOL
40%
VBAC success rate if >4kg EFW
<50%
VBAC success rate if IUD
87%
VBAC rupture rate if IUD
2.4%
VBAC and instrumental delivery
39%
VBAC and OASI
5%
VBAC and perinatal death
4:10,000
VBAC and HIE
8:10,000
VBAC and unexplained SB
10:10,000
Planned vaginal breech birth perinatal mortality
2:1000
Planned vaginal cephalic birth perinatal mortality
1:1000
CS >39/40 perinatal mortality
0.5:1000
Transient neonatal respiratory morbidity in ELCS
4-5%
Transient neonatal respiratory morbidity in ELCS <39/40
6%
Transient neonatal respiratory morbidity in ELCS at 37/40
11%
Risk of maternal death in ELCS
13:100,000
Risk of maternal death in VBAC
4:100,000
% CS at full dilatation
4-5%
% of placenta praevia at term if placenta covers os at 20/40
11%
% of placenta praevia if placenta covers os at 20/40, anterior placenta and previous CS
55%
% of hysterectomy if placenta praevia and 1 previous CS
33%
% of future placenta praevia in women with current placenta praevia and 1 previous CS
23%
% of fetal varicella syndrome if VZV infection <28/40
1%
Risk of ectopic with salpingostomy
20%
Risk of malignancy of endometrial polyp
3%
% of endometrial polyps in postmenopausal women
11.8%