[Cervical cerclage--when is it effective?]

Area of Science:

• Obstetrics and Gynecology
• Maternal-Fetal Medicine

Context:

• Cervical incompetence poses a risk for preterm delivery and second-trimester abortions.
• Different types of cervical cerclage (primary, secondary, tertiary) are used to manage cervical incompetence.
• Expectant management is an alternative to cerclage in some cases.

Purpose:

• To compare the effectiveness of primary, secondary, and tertiary cervical cerclage versus expectant management.
• To evaluate the impact of timing and cervical length on cerclage success.

Summary:

• A retrospective study of 145 pregnant women with cervical incompetence compared cerclage to expectant management.
• Primary cerclage showed similar effectiveness to expectant management.
• Secondary cerclage significantly improved gestational age at delivery and reduced preterm births compared to expectant management.
• Tertiary cerclage was associated with unfavorable outcomes, irrespective of treatment.
• Placing cerclage before 18 weeks' gestation and maintaining cervical length >= 25 mm improved outcomes.

Impact:

• Findings suggest that secondary cervical cerclage is beneficial for preventing preterm delivery in specific patient groups.
• The study highlights the importance of timing and cervical length in optimizing cerclage outcomes.
• Results may inform clinical decision-making regarding the management of cervical incompetence.