Risk factors and pathogenic bacteria distribution of cesarean section infection

Chou lin; Wang Guohe; Zhang Lili; Zhu Yanhong; Zhang Huiling

doi:10.3969/j.issn.1672-8521.2017.02.008

Abstract：Objective:To investigate the risk factors of incision infection after cesarean section and the pathogenic bacteria distribution for providing a basis for clinical treatment.Methods:The clinical data were retrospectively analyzed of 140 puerperants with cesarean section infection who admitted from Mar.2014 to Mar.2017 in the Zhengzhou People's Hospital of Henan Province.The risk factors such as birth process,operation time,premature rupture of fetal membranes,blood loss,infection-associated underlying diseases,prophylactic antibiotics use,times of invasive examination and hospital stay etc.were assessed by univariate and multivariate analysis.The secretions from the incision were sampled for bacterial culture,and the distribution of the main pathogenic bacteria was analyzed.Results:The reproductive tract infection,no using of antibiotics pre-operation,vaginal examination undergone ≥ 3 times,operation time more than 1 hour,the blood loss ≥ 400 ml and exist of underlying disease were the independent risk factors for cesarean section infection.The main pathogenic bacteria were Escherichia coli (81 strains,46.29％),followed by Pseudomonas aeruginosa(28 strains,16.00％) and Enterococcus(25 strains,14.29％).Conclusions:Incision infection after cesarean section is correlated with the reproductive tract infection,not use of antibiotics preoperation,more than 3 times of vaginal examination,operation time more than 1 hour,the blood loss ≥ 400 ml and the underlying disease.The main pathogenic bacteria are gram-negative bacteria.