Background Premature rupture of membranes (PROM) may cause intra-uterine infection and fetal death. A diagnostic tool that is non-invasive, specific and quick is needed to predict PROM. Human chorionic gonadotrophin (hCG), a-fetoprotein (AFP) and interleukin 6 (IL-6), which are present in vaginal fluid, were reported to be potential markers for PROM but have not yet been used in the clinic. This study was designed in a daily routine semi-emergency setting to evaluate the clinical practicability of using these markers in diagnosing PROM.
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