"Amniotic fluid sludge has been identified as a potential marker of adverse pregnancy and perinatal outcomes. Amniotic fluid sludge is associated with spontaneous pre-term labour and, therefore, lower gestational age at birth, lower neonatal birthweight, and increased neonatal intensive care unit admission rate and neonatal death 4."
"It is also usually associated with a shortened cervical length; when the patient presents with both aspects, the pre-term labour risk increases 5."
"Amniotic fluid sludge is a finding on obstetric transvaginal ultrasound. Defined as free-floating hyperechogenic material in close proximity to the cervical internal os within the amniotic cavity with intact fetal membranes 1. On ultrasound, it presents as a dense, homogenous mass 2."
"It is also usually associated with a shortened cervical length; when the patient presents with both aspects, the pre-term labour risk increases 5."