gynecology and obstetrics
Cervical Insufficiency
Introduction
Cervical insufficiency (formerly called cervical incompetence) is painless cervical dilation resulting in 2nd-trimester pregnancy loss. Transvaginal cervical ultrasonography during the 2nd trimester may be used to assess risk or monitor. Treatment is reinforcement of the cervix with suture material (cerclage). Cervical insufficiency is painless cervical dilation resulting in 2nd-trimester pregnancy loss in the absence of clinical contractions, labor, or both. Estimated incidence varies greatly (1/100 to 1/2000). 