Pathogenic bacteria of postoperative incision infections in perianal abscess and their risk factors
OBJECTIVE To investigate the pathogenic bacteria of postoperative incision infection in perianal abscess and their risk factors.METHODS A total of 115 patients who underwent incision and drainage for perianal abscess in Xingtai People's Hospital from Jan.2020 to Dec.2022 were selected and were divided into infected and non-in-fected groups according to postoperative incision infection,34 and 81 cases respectively.The pathogenic bacteria and their drug resistance of postoperative incision infection in patients with perianal abscess were analyzed.The clinical data of the two groups were analyzed and the risk factors of postoperative incision infection in patients with perianal abscess were summarized by logistic analysis.RESULTS A total of 51 strains of pathogenic bacteria were isolated from perianal abscess patients with postoperative incision infection,of which 31 strains of gram-negative bacteria accounted for 60.78％,and 20 strains of gram-positive bacteria accounted for 39.22％,mainly Escherichia coli,Staphylococcus aureus and Pseudomonas aeruginosa.Escherichia coli had higher drug resistance to ceftriax-one and piperacillin,while was more sensitive to imipenem.Staphylococcus aureus had higher resistance to peni-cillin and erythromycin,while was more sensitive to vancomycin and teicolanin.Pseudomonas aeruginosa had higher resistance rate to ceftazidime and ceftriaxone,while was more sensitive to ciprofloxacin.Logistic regression analysis showed that the duration of hospitalization,deep abscess and perianal skin infection were the factors af-fecting postoperative incision infection in perianal abscess patients(P＜0.05).CONCLUSION The main pathogens of postoperative incision infection in patients with perianal abscess were Escherichia coli,Staphylococcus aureus and Pseudomonas aeruginosa.According to these risk factors,targeted treatment and intervention could be per-formed to reduce the risk of postoperative incision infection in patients with perianal abscess.
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