Analysis of vaginal microflora in the patients with preterm premature rupture of membrane

Abstract

Objective To investigate the vaginal microecosystem condition and evaluate the clinical significance of vaginal microflora in the patients with preterm premature rupture of membrane(PPROM). Methods A retrospective study was conducted in 300 pregnant women of 28-36+ 6 gestational weeks, who were admitted in Yili State Youyi Hospital from January 2013 to December 2013. One hundred and fifty pregnancy women with preterm premature rupture of membranes were in the PPROM group, and 150 patients without PPROM were in the control group. Microecological evaluation of vaginal discharge was performed by Gram stained. Enumeration data were analyzed by t test and measurement data were analyzed by Chi-square test. Results In the PPRPM group, 53 cases of 150 cases were Gram-positive coccus (34.67%). Compared with the control group (12.00%, 18/150), there was significant difference ( χ2=21.54, P<0.01). In the control group, 101 cases of 150 cases were Gram-positive bacilli (67.33%). Compared with the PPROM group (31.33%, 41/150), there was significant difference ( χ2=38.89, P<0.01). The rate of normal floraintensity (63.33%, 95/150) in the PPROM groupversus (88.00%, 132/150) in the control group ( χ2=17.28, P<0.01). The rate of normal bacterial diversity(60.00%, 95/150) in the PPROM group versus (90.67%, 136/150) in the control group ( χ2=37.96, P<0.01). The incident rate of bacterial vaginosis (BV), vulvovaginalcandidiasis (VVC), BV with VVC, and vaginal dysbacteriosisin the PPROM group were 21.33% (32/150), 24.00% (36/150), 13.33% (20/150) and 32.00% (48/150), respectively. In the control group, the incidence rate of BV, VVC, BV with VVC, and vaginal dysbacteriosis were 10.67% (16/150), 10.67% (16/150), 1.33% (2/150) and 20.67% (31/150), respectively.Compared in the two group, 2 value were 6.33, 9.27, 27.33, 4.95, respectively, which were significant difference(P=0.01, <0.01, <0.01, <0.05). In the PPROM group, 33.81% patients had vaginal microecological disturbance without any symptoms. Conclusion The incident rate of vaginal microecological disturbancewas increased in the PPROM patients. Key words: Premature rupture; Premature; Vaginosis, bacterial; Candidiasis, vulvovaginal