Preterm Parturition and PROM - Erez

Question 1

What are the definitions for low birth weight?

Answer 1

<2500g is low birth weight

<1500g is very low birth weight

<1000g is extremely low birth weight

Question 2

What are the common precursors of preterm parturition?

Answer 2

30% are indicated at the discretion of a physician (due to preeclampsia and other maternal pathologies)

Some pathology includes chorioamnionitis and vascular, and a mixture of them

Question 3

How does fetal fibronectin relate to premature parturition?

Answer 3

Anchors the membranes to the uterine wall

Before 24 weeks: Not related to premature birth

After 24 weeks: when secreted in high concentrations into the vagina and membranes detaching from the decidua and triggers parturition

26% of women with high fetal fibronectin and cervical length <30mm will deliver within 46h

44% within a week