feasibility of trans vaginal sonographic cervical changes for the diagnosis of cervical incompetence

Sixty seven pregnant women at risk of developing cervical incompetence and 20 control pregnant women were examined prospectively by transvaginal sonography [TVS] to differentiate between the competent and the incompetent cervices. Patients were divided in to 5 groups based on method of diagnosis. Means and standard deviations for ultrasound measurements showed highly significant differences between all prediagnotic and postdiagnostic measurements as well as between all prettereatment and postreatment measuremenets [P < 0.001]. By combined clinical and ultrasound criteria 38 [56.7%] patients were identified as having cervical incompetence and 29 [43 3%] patients were saved unnecessary cerclage