Value of direct film, amniotic fluid glucose concentration and non stress test in predicting chorioamnionitis in preterm premature rupture of membranes

ABSTRACT

The aim of this study was to evaluate the diagnostic value of direct film examination, estimation of amniotic fluid glucose level and non-stress test [NST] as rapid and simple tests in the early diagnosis of intramiotic infection in cases with preterm premature rupture of membranes [PROM]. The study included 30 pregnant female patients with PROM and no clinical evidence of chorioamnioitis. Amniotic fluid culture revealed the presence of microorganisms in 17 cases [56.7%] with Mycoplasma species and Listeria monocytogenes being the most commonly isolated organisms [35.3% and 23.5% respectively]. Direct film showed very sensitivity with 100% specificity. The sensitivity and specificity of amniotic fluid glucose concentration infection. 7 out of the 17 culture positive cases developed clinical chorioamnionitis. Direct film, amniotic fluid glucose level and NST showed sensitivities of 42.2%, 85.7% and 71.4% respectively in assessing development of clinical infection. None of these 3 tests is sufficiently sensitive, although mostly highly specific, to be used alone as a predictor of chorioamnioitis