Preterm labor

Question 1

Percentage or preterm birth:
Spontaneous ____
Indicated _____
After PPROM ___

Answer 1

Spontaneous 40-45%
Indicated 30-35%
After PPROM 30-35%

Question 2

Hx of prior spontaneous preterm birth at <34 weeks gestation AND a short cervical length (<2.5 cm) detected on transvaginal ultrasound in the 2nd trimester prior to fetal viability

Answer 2

Cerclage

Question 3

History-indicated cerclage

Answer 3

placed at 13-14 weeks, clear history of cervical insufficiency

Question 4

Exam indicated cerclage

Answer 4

13-14 weeks

clear history of cervical insufficiency

Question 5

Ultrasound indicated cerclage

Answer 5

Shortened cervical length, previous birth <34w

Question 6

Ehlers Danlos preterm birth rate

Answer 6

25%

Question 7

Max gestational age for
Magnesium for neuroprotection ____
Tocolysis___
BMZ____

Answer 7

Magnesium for neuroprotection: 32w0d
Tocolysis: 34w0d
BMZ: 34w0d, up to 36w6d*

*know the specifics about re-dosing