Study on group B streptococci in perinatal pregnant women reproductive tract infections and adverse pregnancy outcomes

Abstract

Objective To analyze the perinatal pregnant women vaginal group B streptococcus(GBS) infection and and adverse pregnancy outcomes and provide evidences which were for clinicians to formulate effective prevention and treatment measures. Methods From January 2013 to February 2015, the vaginal secretions were sampled from 795 cases of perinatal pregnant women for culture identification of GBS, and the clinical symptoms and adverse pregnancy outcomes were observed. The final results were statistical analyzed. Results In the 795 pregnant women,there were 256 GBS carriers, the carrier rate was 32.2%. There was statistically significance(χ2=19.095,P<0.01)between less than 30 years old group(28.9%)and greater than or equal to 30 years old group(42.3%).The different incidence rate of clinical symptoms between GBS negative cases and GBS positive cases(18.8%,8.0%)was also had statistically significance(χ2=39.514,P<0.01).Compared with the GBS negative groups,the different incidence rate of premature rupture of membranes,preterm delivery,intrauterine infection and neonatal infections of GBSalso existed statistical significance(χ2=29.355,10.543, 31.797,13.291,all P<0.01). Conclusion The carrier rate of perinatal pregnant women GBS was higher in this region, and the elderly were easier to be infected. Perinatal pregnant women infected with GBS can increase the occurrence of adverse pregnancy outcomes, and should be given clinical intervention. Key words: Streptococcal infections; Pregnancy outcome; Pregnant women