Transvaginal sonographic assessment of cervix in prediction of admission to delivery interval in preterm premature rupture of membranes.

Mean time interval between the membrane rupture and delivery was 96.9 h. Majority of the women (63.8% (n = 51)) delivered within 48 hours. Transvaginal sonographic cervical length was not shown to be associated with latency interval (p = .559), whereas. Posterior cervical angle was shown to be significantly associated with the interval (hazard ratio 1.03, 95%CI: 1.01-1.06; p = .003) Conclusions: Posterior cervical angle assessment using transvaginal sonography is an useful tool in the assessing the latency interval in women with preterm premature rupture of membranes (PPROM). This could help in counselling and planning timely referral to centres with neonatal facilities.