Analysis on the Factors of Maternal Puerperal Infections and Relevant Pathogenic Bacterial Resistance from 2017 to 2022
Objectives To conduct a retrospective analysis of puerperal infection influencing factors,pathogenic bacteria distribution characteristics and drug resistance in a hospital from January 1st,2017 to December 31st,2022.Methods A retrospective analysis was conducted on 500 cases of puerperal infection in the obstetric department of a hospital from 2017 to 2022.The incidence rate of puerperal infection was calculated,and the cases were divided into infected group and uninfected group according to the infection situation.General information of the puerperal infection was collected and influencing factors of puerperal infection were analyzed.The species and distribution of pathogenic bacteria and the resistance of common antibiotics were analyzed.Results(1)There were 45 cases of puerperal infections with an infection rate of 9.00%,and the main sites of infection included the perineum and surgical incisions,and the incidence of infection was 15(33.33%)and 11(24.44%),respectively;(2)comparing with the uninfected group,the infected group suffered from pregnancy complications[223(49.01)vs.35(77.78)],peripartum anemia[234(51.43)vs.35(33(73.33)],inflammation of reproductive tract[223(49.01)vs 3530(66.67)],scarred uterus[215(47.25)vs 31(68.89)],premature rupture of membranes[209(45.93)vs 32(71.11)],and postpartum hemorrhage[265(58.24)vs 36(80.00)]were significantly higher.And all of the above factors were independent risk factors for puerperal infections in multifactorial logistic regression analysis(P＜0.05);(3)the main types of pathogens for maternal puerperal infections were gram-negative bacteria,and the main pathogens were E.coli,hemolytic streptococci and S.aureus,with the proportions of 46.43%,14.29%,and 12.50%in that order;the rate of E.coli resistance to Imipenem was 0.00%,and the rate of resistance to Imipenem was 0.00%,and the rate of resistance to Imipenem was 0.00%.E.coli was 0.00%resistant to imipenem,S.aureus and hemolytic streptococcus were 0.00%resistant to meropenem and vancomycin,and all the three pathogenic bacteria were 100.00%resistant to ampicillin.Conclusions Various obstetric factors such as pregnancy complications could increase the risk of puerperal infection.The perineum and surgical incision were susceptible sites.Gram-negative bacteria were the main pathogens,mainly E.coli,hemolytic streptococcus and S.aureus,and all of them were highly resistant to ampicillin.
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