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Maternal serum and vaginal fluid C-reactive protein levels do not predict early-onset neonatal infection in preterm premature rupture of membranes

Abstract

Objective:

The aim of this study was to evaluate the usefulness of maternal serum and vaginal fluid C-reactive protein (CRP) determinations in the prediction of neonatal congenital infection.

Study Design:

Fifty women between 24 and 36 weeks gestation, complicated by preterm premature rupture of membranes (pPROM), were divided into two groups according to the presence (n=14) or absence (n=36) of early-onset newborns' infection.

Result:

Maternal serum and vaginal fluid CRP concentrations were comparable between both groups. Serum CRP levels 10 and 15 mg l–1 predicted neonatal infection with a sensitivity of 47 and 47%, specificity of 63 and 76%, positive predictive value (PPV) of 38 and 47%, and negative predictive value (NPV) of 72 and 76%, respectively. The cutoff value of vaginal CRP 2.4 mg l–1 predicted infection with a sensitivity of 71%, specificity of 47%, PPV of 34%, and NPV of 81%. Receiver-operating characteristic curve analysis revealed that the predictive performance of CRP was poor.

Conclusion:

Maternal serum and vaginal fluid CRP determinations after pPROM are of poor predictive value in neonatal early-onset infection prediction.

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Torbé, A., Kowalski, K. Maternal serum and vaginal fluid C-reactive protein levels do not predict early-onset neonatal infection in preterm premature rupture of membranes. J Perinatol 30, 655–659 (2010). https://doi.org/10.1038/jp.2010.22

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