Objective: This study aimed to compare the efficacy of combined use of Arabin pessary, cervical cerclage and progesterone with progesterone-only management of pregnant women at high risk of preterm birth.
Materials And Methods: The study included 203 pregnant women at high risk of preterm birth who were randomised to receive Arabin pessary (Group 1, n = 82) and progesterone, circular cervical cerclage and progesterone (Group 2, n = 121) or progesterone treatment only (Group3, controls, n = 50). Patients in the pessary and cerclage group also received progesterone.