Modification of cervical length after cervical pessary insertion: correlation weeks of gestation.

Objectives: To observe the modifications in cervical length (CL) in patients with and without cervical pessary (Arabin® ASQ 65/25/32) and correlate these modifications with gestational age at delivery.

Study Design: Prospective study of asymptomatic singleton pregnancies (PECEP-Trial) between weeks 20 + 0 and 23 + 6 with maternal short cervix (<25 mm) randomised into two groups: expectant management and cervical pessary.

Results: This study included 380 pregnant women: 190 with pessary and 190 without pessary.