Abstract：Objective To investigate the potential risk factors of urinary tract infection(UTI)caused by transrectal ultrasound(TRUS)guided prostate biopsy, and provide related nursing measures. Methods A retrospective analysis based on 102 prostate cancer patients undergoing transrectal ultrasound(TRUS)guided prostate biopsy was carried out. Patients were divided into the infected and the uninfected group. Multivariable logistic regression analysis was performed to investigate the potential factors of UTI. The relationship between time of using antibiotic and treatment effect(level of urinary-leukocyte)was illustrated by the curve. Results In 102 patients who underwent biopsy, 15 patients(14.71%)with symptoms of UTI. There were 14 strains of pathogenic bacteria detected by UC and bacteria identification, in which gram-negative bacteria accounting for 11 cases, including 9 cases of e. coli. Multivariate analysis showed that history of urinary tract infection, merging, infections of the prostate, age70, preoperative use of antibiotics, indwelling catheter time 4 days were correlated with postoperative UTI(P0.05). The treatment effect on 15 patients appeared a downward trend with time prolonging. Conclusion In the process of UTI after biopsy, escherichia coli.plays an important role in pathogenic bacteria. And people have a history of UTI, infections of the prostate, age 70 years old, didn’t use of antibiotics previously, with indwelling urethral tube time 4 days have higher risk of suffering UTI. It is required to carry out antibiotic therapy to control the condition.
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