Threatened Preterm Labor: What You Need to Know

Threatened preterm labor is a serious condition that can affect the health of both the mother and the baby. Here are some important things to be aware of:

Prenatal Checkups:

• Avoid vaginal ultrasound: Using a vaginal probe can easily lead to preterm labor and uterine prolapse.

• Risks of previous Cesarean section: These include low placenta previa, vasa previa, placenta previa, and the most serious risk, uterine rupture.

Screening for Threatened Preterm Labor:

• There is no scientific evidence to support the effectiveness of screening methods. Therefore, tests like vaginal ultrasound to measure cervical length, fetal fibronectin, vaginal NK test, and home contraction tracking are not recommended.

Cervix:

• Why is vaginal probe the gold standard technique for measuring cervical length?

• It avoids impacting the cervix, fetal parts, and is suitable for obese mothers.

• What is considered a short cervical length?

• According to ACOG: < 25mm.

• Important note: Preexisting cervical insufficiency, presence of contractions can lead to shortening…

• During labor, a shortened cervix will never regain its length.

Corticosteroids for Fetal Lung Maturation:

• Betamethasone and Dexamethasone are two commonly used corticosteroids because they can cross the placenta.

• Betamethasone generally acts faster and has a longer half-life.

• Dexamethasone contains sulfite, which can affect the nervous system.

• In cases of HELLP: Dexamethasone is preferred, as studies suggest it reduces brain hemorrhage.

Note:

• The information provided here is for general knowledge and should not be considered as a substitute for professional medical advice.

• Please consult with your doctor for proper guidance and treatment.