Use of cervical ultrasonography in prediction of spontaneous preterm birth in twin gestations

Article Abstract:

A woman with a twin pregnancy whose cervix is shorter than one inch in length has a greater risk of a premature delivery, according to a study of 131 women who had cervical ultrasound scans. A shorter than normal cervix was as good as other predictors of premature birth.

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Use of cervical ultrasonography in prediction of spontaneous preterm birth in triplet gestations

Article Abstract:

Women with a triplet pregnancy whose cervix is less than one inch in length have a greater risk of premature birth, according to a study of 51 women. An abnormally short cervix was as good as other predictors of premature birth.

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The natural history of a positive response to transfundal pressure in women at risk for cervical incompetence

Article Abstract:

Pregnant women whose cervices shorten in response to pressure on the uterus may require cervical cerclage to prevent preterm delivery. Researchers performed transvaginal ultrasound examinations in the midtrimester of pregnancy on 10 women at risk for cervical incompetence. Women whose cervices appeared on ultrasound to shorten in response to pressure applied to the uterus were considered to be at risk for preterm delivery. The cervices of these women changed over the next one to three weeks in preparation delivery. These women received cervical cerclage, or surgical suturing of the cervical opening, to prevent preterm delivery.

Physiological aspects

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