TITLE:
Accuracy of Transvaginal Ultrasound in Prediction of Latency Period in Women with Preterm Premature Rupture of Membranes
AUTHORS:
Ahmed Shrief Abd Elhamid, Ahmed Hamdi El-Sefi, Tarek Aly Raafat
KEYWORDS:
Preterm Prelabor Rupture of Membranes, Latency Period, Transvaginal Ultrasound, Posterior Uterocervical Angle, Anterior Uterocervical Angle, Cervical Length
JOURNAL NAME:
Open Journal of Obstetrics and Gynecology,
Vol.10 No.11,
November
27,
2020
ABSTRACT: Background: Preterm prelabor rupture of membranes (PPROM) is a major cause of Pretem
Birth (PTB), Pretem Birth (PTB) is the most significant cause of perinatal
morbidity and mortality worldwide. Cervical length (CL), posterior
uterocervical angle (PUCA) and anterior uterocervical angle (AUCA) have been
postulated in several studies to have an important role in prediction of PTB.
Up to our knowledge, this is the first study that combines the three cervical
parameters in prediction of latency period in women with PPROM. Aim of the Work: To assess the accuracy of cervical length, posterior uterocervical angle
and anterior uterocervical angle in prediction of latency period in women with
Preterm prelabor rupture of membranes. Subjects and Methods: A Prospective cohort study on 205
women with PPROM was held at Ain Shams University Maternity Hospital, a
transvaginal ultrasound was performed to measure cervical length, posterior
uterocervical angle, anterior uterocervical angle. Results: A total of
205 pregnant women with PPROM were included in this study, the latency grade
was within 2 days in 57 (27.8%) of cases while was after 2 days in 148 (72.2%)
of cases. As regards cervical length cut-off value 25.0 mm, sensitivity was
78.9%, specificity was 65.5%, posterior uterocervical angle cut-off value
108.0°, sensitivity was 93.0%, specificity was 60.1%, and anterior
uterocervical angle cut-off value 106.0°, sensitivity was 93.0%, specificity
was 71.6%. Conclusion: The
combination of cervical length (CL), posterior uterocervical angle (PUCA) and
anterior uterocervical angle (AUCA) measurements greatly predicts the
latency period in women with PPROM, and Anterior uterocervical angle (AUCA) ≥ 106.0°had the highest diagnostic value in predicting latency period
within two days.