Key clinical point: The incidence of short cervical length is significantly affected by the method of cervical length measurement, thus necessitating knowledge of the measurement method employed.
Major finding: The lowest mean cervical length was recorded using single-line without cervico-isthmic complex (CIC; 41.04 ± 7.1 mm) compared with two-line without CIC (43.29 ± 7.36 mm) and trace without CIC (44.14 ± 7.60 mm); trace with CIC yielded the longest mean length (49.18 ± 9.05 mm). The incidence of a short cervix (<25 mm) ranged from 0.4% to 1.1%.
Study details: This was a single-center, prospective, cohort study including 1691 nulliparous or parous women with a singleton pregnancy who had undergone cervical length measurement between 18 and 22 weeks of gestation.
Disclosures: The authors reported no source of funding. BW Mol declared receiving a National Health and Medical Research Council Investigator grant and consulting fees from a few pharmaceutical companies.
Source: van Zijl MD et al. Uniform international method to measure cervical length; are we there yet? Fetal Diagn Ther. 2022 (Mar 10). Doi: 10.1159/000523996