cervical length


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cervical length

The length between the external os and the functional internal os of the uterine cervix. At term, the average cervical length is 3.5 to 4.0 cm. A length of 2.0 cm or less is associated with an increased risk of preterm labor.
See also: length
References in periodicals archive ?
Cost-effectiveness of transvaginal ultrasound cervical length screening in singletons without a prior preterm birth: an update.
Joseph Mercy Hospital, and her associates looked at preterm delivery data before and after implementation of a universal cervical length screening protocol at a single tertiary referral center.
No significant differences were noted in baseline characteristics between the two treatment groups in either PTB history cohort or non-PTB history cohort, including gestational age at the treatment, cervical length, prior obstetric history (including gravidity, parity, and prior PTBs), and maternal complications during pregnancy (all P > 0.
Using bivariate analysis, we found no statistically significant correlation between the incidence of complications and sex, previous fibroscopy, or cervical length (table 1).
Therefore, in the context of our high tobacco use population, routine cervical length screening may not make good financial sense.
Among the Brazilian population, women under the age of 20 years have been found to have shorter cervical lengths, and therefore a higher prevalence of cervical incompetence (16).
Whether to apply the cerclage or manage the patient conservatively by monitoring cervical length by ultrasound also remains debatable.
Eligible patients had a transvaginal ultrasound scan done to confirm cervical length of less than 2.
7) asked which is better in predicting the outcome of induction of labour with prostaglandins in women with an unfavourable cervix--the use of a clinically obtained Bishop's score, or the ultrasonographically obtained cervical length.
Cervical length < or = 25 mm in low-risk women: a case control study of cerclage with rest vs rest alone.
Mid-cervical length decreases during pregnancy, from 4 cm at 16 weeks to almost 3cm at 34 weeks (normal mean cervical length in the middle of the third quarter is 3.

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