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
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
The cervical length after the cerclage procedure was determined to be statistically significantly shorter in the emergency group (20.24[+ or -]3.97 mm) compared with the therapeutic group (29.90[+ or -]4.65 mm) (p=0.001).
2x2 contingency table was used to calculate sensitivity, specificity, positive predictive value, negative predictive value and diagnostic accuracy of transperineal US in accurate assessment of cervical length taking transvaginal US as gold standard.
Serial transvaginal ultrasound showed no changes in cervical length. At 38 weeks, cervical polypectomy was performed smoothly under spinal anesthesia.
Pregnancies, n 23 GA at cerclage, weeks [22.sup.+3] ([17.sup.+5] to [25.sup.+3]) Indication Ultrasound-indicated, n (%) 8 (35%) Cervical length, mm 8(5-14) Physical examination-indicated, n (%) 17 (65%) Dilatation of cervix, n 10 Prolapsed membranes, n 5 ROM during cerclage, n (%) 0 (0%) Surgery completed, n (%) 23 (100%) GA, gestational age; ROM, rupture of membranes.
A systematic ultrasound examination was performed which measured the cervical length three times.
Ulusoy, "Importance of cervical length in dysmenorrhoea aetiology," Journal of Obstetrics and Gynaecology, vol.
Cost-effectiveness of transvaginal ultrasound cervical length screening in singletons without a prior preterm birth: an update.
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 > 0.05).
Combined fetal fibronectin and cervical length and spontaneous preterm birth in asymptomatic triplet pregnancies.
We analyzed five variables: sex, previous fibroscopy, cervical length (<5 cm, 5.5 to 6.5 cm, and [greater than or equal to]7 cm), cervical risk factors, and general risk factors.
At a cut-off level for cervical length of 3.4 cm in our study with 1,074 scans, we would identify 20 possibly preventable preterm births, treat 11 patients for each preterm birth prevented, and screen 53 patients to identify one patient to treat for preterm birth.
Following the taking of the swabs, the attending clinician did a standard ultrasound exam to determine fetal biometry, fetal position, cervical length, as well as a digital exam of the cervix.

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