investigating frequency of infection and its related risk factors after trans rectal ultrasound-guided biopsy of prostate: a cross-sectional study

Introduction: infectious complications following transrectal ultrasound-guided prostate biopsy (trus-bx) have been observed to be increasing. this research aimed to assess the incidence of infection in patients who underwent trus-bx and identify the associated risk factors. methods: this prospective cross-sectional study included 439 patients who underwent trus-bx. the frequency of infection and its related risk factors were assessed using a checklist based on various variables. the patients’ data were recorded according to the study’s inclusion and exclusion criteria. results: the average age of the patients was 64.6±8.7 years old —infection after trus-bx was observed in 2.1% of patients (n=9). lower age (p-value=0.005) and benign prostatic hyperplasia (bph) (p-value=0.047) showed a significant association with an increased risk of infection after trus-bx in univariate analysis. however, in multivariate analysis, age was the only factor significantly associated with infectious complications, indicating a decreased risk of infection in older patients (p-value=0.009). we did not find a significant association between infection after prostate biopsy and previous prostate biopsy or surgery, urethral catheterization, prostate cancer or prostatitis pathology report, diabetes mellitus, and serum creatinine level. conclusions: according to this study, infection after prostate biopsy occurs in 2.1 % of cases, and younger patients are more at risk.