PB 234: Prediction and Prevention of Spontaneous Preterm Birth

Question 1

How should cervical length screening be implemented in patients with a history of spontaneous preterm birth?

Answer 1

Serial TVUS CL screening from 16w 0d to 24w 0d

Question 2

True of False: Screening and antibiotic treatment for asymptomatic bacterial vaginosis is recommended in patients order to prevent preterm birth.

Answer 2

FALSE

Question 3

Vaginal progesterone is recommended for asymptomatic individuals without a history of preterm birth with a singleton pregnancy and a short cervix measuring ____.

Answer 3

Cervical length less than 25 mm

Question 4

Is intramuscular 17-OHP or pessary indicated in a multiple gestation at 18w 0d - 22w 6d with a short cervix?

Answer 4

Not indicated

Question 5

True or False: Patients with a singleton spontaneous preterm birth should be offered progesterone supplementation (either vaginal or intramuscular) in the context of a shared decision-making process incorporating the available evidence and the patient’s preference.

Answer 5

True!

Question 6

1. What are the options for someone not on progesterone with a short cervix in the second trimester in a single gestation, with a history of prior spontaneous preterm birth?
2. What if they were already on progesterone supplementation?

Answer 6

1. Vaginal progesterone, Cerclage
2. Cerclage only

Question 7

Review of Screening and Interventions for Prevention of Preterm Birth