• V Karamisheva, S Ivanov, A Nikolov, D Jordanova, G Dimitrov, and A Nachev.
• Akush Ginekol (Sofiia). 2014 Jan 1; 53 Suppl 1: 15-9.

AimTo determine whether the presence of fetal fibronectin in vaginal secretions of patients with symptoms suggestive of preterm labor predicts preterm delivery. Fetal fibronectin, a large molecular weight glycoprotein produced in the chorion, is expressed in cervical and vaginal secretions in women with disruption of the choriodecidual junction by labor or by inflammation.MethodsA prospective observational longitudinal study from January 2013 till December 2013 was performed on patients between 24 and 32 weeks of gestation with symptoms of preterm labor, intact membranes, and cervical dilation < 4 cm (total patients = 86). The endpoint was the delivery at 34 weeks or more. The screening methods used were: the fFN test and the cervical length measurement by transvaginal according to an established protocol.ConclusionThe presence of FFN in vaginal or cervical secretions before 35 weeks is a is a strong predictor that preterm delivery is unlikely within the next 7 to 14 days. The predictive power of FFN is stronger at earlier gestation ages (24-29 wks) than it is later in pregnancy and is stronger for short-term prediction (7-14 d).

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