Preterm Birth Clinical Trial
Official title:
Pessary in Prevention of Preterm Birth for Women With Twin Pregnancies and Short Cervical Length
Spontaneous preterm birth (SPTB) remains the number one cause of perinatal mortality in many
countries, including the United States. Multiple gestations are at increased risk of SPTB. A
short cervical length (CL) on transvaginal ultrasound (TVU) has been shown to be a good
predictor of SPTB, in both singletons and twins.
The cervical pessary is a silicone device that has been used to prevent SPTB. The efficacy of
the cervical pessary has been assessed in several populations including singletons with short
CL, unselected twins, twins with short CL, and triplet pregnancies. Several randomized
clinical trials (RCTs) have been published, and several are ongoing. However, no consensus on
use of the cervical pessary in pregnancy or guidelines for management have been assessed.
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