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  • Author: Catherine Ford x
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Abstract

Objective: To determine the combination of amniotic fluid (AF) tests with the best diagnostic accuracy for predicting intrauterine infection/inflammation (IUI) in patients with clinical suspicion of chorioamnionitis.

Study design: This is a retrospective study of 34 pregnant women who presented with uterine tenderness, maternal fever, maternal tachycardia, and/or fetal tachycardia and underwent AF analysis. IUI diagnosis was based on placental histology, positive AF bacterial cultures, and/or Gram stain.

Result: Logistic regression analysis revealed a significant relationship between IUI and AF glucose. Glucose is more sensitive than culture or Gram stain (64% vs. 40% and 20%, [iw-0.3]respectively). Culture and glucose combined achieved the best diagnostic accuracy (sensitivity, 71%; specificity, 100%; positive and negative predictive values, 100–83%, respectively).

Conclusion: Positive AF Gram stain or glucose <15 mg/dL strongly suggests IUI in symptomatic patients. If both tests are negative, the result of culture should aid the management.

Abstract

Objective

To assess the value of incorporating amniotic fluid (AF) analysis in the management of patients with clinical chorioamnionitis.

Methods

This was a retrospective cohort study of all women carrying a singleton fetus and managed at our center between 2000 and 2009. We included only those women suspected of chorioamnionitis based on one or more of the following: (1) uterine tenderness, (2) maternal fever, (3) maternal and/or fetal tachycardia and (4) purulent discharge. The management was deemed to be justified if (1) pregnancy was terminated <24 weeks and histology confirmed chorioamnionitis; (2) delivery was performed expeditiously after initial assessment and histology confirmed chorioamnionitis; (3) delivery was delayed for 2–7 days and the patient completed a course of antenatal steroids before 34 weeks; and (4) delivery was delayed ≥7 days and histology was not indicative of chorioamnionitis, or delivery occurred after 37 weeks. Univariate and logistic regression analyses were used as appropriate.

Results

Of the 77 women with suspected chorioamnionitis, AF analysis was performed in 43 (55.8%) cases, and the management was justified in 63 (81.8%) cases based on the aforementioned criteria. Stepwise regression analysis confirmed AF analysis as a predictor of justified management. The rates of composite morbidity, neonatal sepsis, neonatal death and admissions to neonatal intensive care unit were lower in the justified management group.

Conclusion

Incorporation of AF analysis into clinical assessment does improve the management of suspected chorioamnionitis.

Biopolitics, Economics, and Literature on the Cusp of Modernity
Series: Forms of Living
Shared Legacies of Race and Reconciliation