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P06.04: Association between cervical length measured by transperineal ultrasound before labour and time of delivery
Author(s) -
Chan Y.V.,
Hui W.,
Lau W.L.,
Leung W.C.
Publication year - 2018
Publication title -
ultrasound in obstetrics and gynecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.202
H-Index - 141
eISSN - 1469-0705
pISSN - 0960-7692
DOI - 10.1002/uog.19669
Subject(s) - medicine , receiver operating characteristic , ultrasound , area under the curve , obstetrics , log rank test , gynecology , vaginal delivery , transvaginal ultrasound , survival analysis , pregnancy , surgery , radiology , genetics , biology
Method 2D ultrasound examinations were performed on nulliparous women with uncomplicated pregnancy within 12 hours of admission for show, irregular uterine contractions before onset of labour, in addition to digital vaginal examination on admission. Cervical length (CL) was measured by transperineal ultrasound and repeated up to two times where possible. Time of delivery and other demographic data were later retrieved from hospital’s electronic database. Relationship between cervical length and time of delivery was analyzed using Kaplan Meier survival curves, with delivery within 3 days set as primary end point. The accuracy of CL for the prediction of time of delivery within 3 days was analyzed by means of the area under the receiver operating characteristic (ROC) curve (AUC). Conclusion Cervical length measured by transperineal ultrasound before onset of labour was associated with delivery within 3 days, but there was poor predictive value. P06.04Association between cervical length measured by transperineal ultrasound before labour and time of delivery

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