Maternal white blood cell count cannot identify the presence of microbial invasion of the amniotic cavity or intra-amniotic inflammation in women with preterm prelabor rupture of membranes
Abstrakt
The main aim of this study was to determine the relationship between the maternal white blood cell (WBC) count at the time of hospital admission in pregnancies complicated by pre-term prelabor rupture of membranes (PPROM) and the presence of microbial invasion of the amniotic cavity (MIAC) and/or intra-amniotic inflammation (IAI). The second aim was to test WBC diagnostic indices with respect to the presence of MIAC and/or IAI.
Four hundred and seventy-nine women with singleton pregnancies complicated by PPROM, between February 2012 and June 2017, were included in this study. Maternal blood and amniotic fluid samples were collected at the time of admission.
Maternal WBC count was assessed. Women with MIAC or IAI had higher WBC counts than those without (with MIAC: median, 12.8 x 10(9) /L vs. without MIAC: median, 11.9 x 10(9) /L; p = 0.0006; with IAI: median, 13.7 x 10(9) /L vs. without IAI: median, 11.9 x 10(9)/L; p < 0.0001).
The maternal WBC count at the time of admission showed poor diagnostic indices for the identification of the presence of both MIAC and IAI.