Characterization of amniotic fluid sludge in preterm and term gestations.

Objective: To describe the characteristics of amniotic fluid sludge obtained from patients in term and preterm gestations.

Methods: This cross-sectional study included patients with dense aggregates of particulate matter detected in amniotic fluid, observed with transvaginal sonography. All patients were in labor and had an impending delivery, either preterm or at term.