Author/Authors :
Kalantari, M. Department of Radiology - Mahdieh Hospital - Shahid Beheshti University of Medical Sciences, Tehran, Iran , Mostaghel, N. Department of Obstetrics and Gynecology - Taleghani Hospital - Shahid Beheshti University of Medical Sciences, Tehran, Iran , Khoshnood Shariati, M. Department of Pediatrics - Mahdieh Hospital - Shahid Beheshti University of Medical Sciences, Tehran, Iran , Amiri, Z. Department of Basic Sciences - National Nutrition and Food Research Institute - Shahid Beheshti University of Medical Sciences, Tehran, Iran , Piri, S. , Ghazal, A. Mahdieh Hospital, Tehran, Iran
Abstract :
Background/Objective: In order to predict the time of labor in patients with preterm premature
rupture of membrane (PPROM), different factors have been studied resulting in different detection
rates. Recently, sonographic measurement of myometrial thickness (MT) has been introduced and
studied as an applicable and noninvasive method in predicting the length of latency interval (LI) of
labor (the period from PPROM to start of labor). The objective of our study was to determine the
correlation between MT and LI in pregnant women with PPROM led to oligohydramnios.
Patients and Methods: This was a cross-sectional study on 24 cases with PPROM. The
sonographic measurement of myometrial thickness and the latency interval of patients with PPROM
without labor pain were recorded. Gestational age was between 26-34 weeks and amniotic fluid
index (AFI) was less than 5 percentile. The data were analyzed using SPSS software.
Results: The mean±SD maternal age was 29.2±1.2 years. The AFI in all women was less than 5%
percentile of normal fluid for that gestational age. The mean±SD of gestational age was 29.1±2.2
weeks. The mean±SD of MT was 6.5±1.5 mm interiorly, 7.9±4.2 mm fundal, 6.6±1.7 mm in the
lower segment and 7.8±2.2 mm laterally. The mean LT was 545±4.7 hours.
Conclusion: Our study showed that there is no significant correlation between MT and LI in
pregnant women with PPROM and reduced AFI.
