Objective: To evaluate the combined identification of placental alpha-1 microglobulin (PAMG-1) in cervicovaginal secretions and ultrasound cervical length measurement in pregnant women with symptoms of threatening premature bith (PB) and intact fetal membranes to predict the time of labor onset.
Materials And Methods: A prospective observational study including 137 pregnant women at a gestational age of 22-37 weeks with symptoms of PB. Presence of PAMG-1 was determined using the commercially available test kit (Parsagen Diagnostics Inc, Boston, USA) and the cervical length was measured using ultrasound.