Purpose: Recent studies have highlighted an increasing trend of infectious complications due to fluoroquinolone-resistant organisms among men undergoing transrectal prostate biopsy. This study evaluated the current incidence of infective complications after trans-rectal prostate biopsy for identification of risk factors in Korean men who received fluoroquinolone prophylaxis. Materials and Methods: A prospective, multicenter study was conducted in Korea from January to December 2015. Prostate biopsies performed with fluoroquinolone prophylaxis during 3 months in each center were included. A pre-biopsy questionnaire was used for identification of patient characteristics. Clinical variables including underlying disease, antibiotic prophylaxis, enema, povidoneiodine cleansing of the rectum, and infectious complications were evaluated. The primary outcome was the post-biopsy infection rate after fluoroquinolone prophylaxis. Univariable and multivariable analyses were used for identification of risk factors for infectious complications. Results: The study included 827 patients, of whom 93 patients (11.2%) reported receiving antibiotics in the previous 6 months and 2.5% had a history of prostatitis. The infectious complication rate was 2.2%. Post-biopsy sepsis was reported in 2 patients (0.2%). In multivariable analysis predictors of post-biopsy sepsis included person performing biopsy (adjusted odds ratio [OR], 4.05; 95% confidence interval [CI], 1.31-12.5; p=0.015) and operation history within 6 months (adjusted OR, 5.65; 95% CI, 1.74-18.2; p=0.004).
Conclusions:The post-prostate biopsy infectious complication rate in this study was 2.2%. Person performing biopsy (non-urologists) and recent operation history were independent risk factors for infectious complications after trans-rectal prostate biopsy. . Fluoroquinolones (FQs) are particularly useful in this setting owing to their broad spectrum of activity against intestinal flora as well as their high prostatic tissue levels after oral administration [2,3].
KeywordsDespite antibiotic prophylaxis, several recent studies have reported an increased rate of infective complications following transrectal prostate biopsy in both North America and Europe [4][5][6][7][8]. A recent review of the literature found that up to 6.3% of patients required hospitalization due to post-biopsy complications [4]. This has led to increased use of multiple broad-spectrum antibiotics for prophylaxis; however, this practice may accelerate the development of resistant bacteria [9,10]. The most common pathogen implicated in post-transrectal prostate biopsy sepsis is Escherichia coli, accounting for approximately 75-90% of infectious complications. Antimicrobial-resistant E. coli has been increasingly reported in post-biopsy sepsis over the past decade [8]. The link between prior FQ exposure, colonization with fluoroquinolone-resistant (FQ-R) E. coli, and subsequent post-biopsy infection with FQ-R E. coli was also recently demonstrated [11]. The risk of post-biopsy infection is increased by 7-f...