Excluding 8 cases (8.42 %) which cervical cerclage were applied, 87 patients were administered vaginal progesterone and in 9 cases (10.34 %) cervical shortening were continued despite progesterone treatment. Four out of these nine cases (44.44 %) had cervical cerclage and their deliveries were delayed after 34 th gestational week. Vaginal…[Read more]