Korean J Urol.  2013 Feb;54(2):117-122.

Microbiological Characteristics of Acute Prostatitis After Transrectal Prostate Biopsy

• Bang JH
• Choe HS
• Lee DS
• Lee SJ
• Cho YH

Abstract

PURPOSE
We aimed to identify microbiological characteristics in patients with acute prostatitis after transrectal prostate biopsy to provide guidance in the review of prevention and treatment protocols.
MATERIALS AND METHODS
A retrospective analysis of medical records was performed in 1,814 cases who underwent prostate biopsy at Seoul St. Mary's Hospital and St. Vincent's Hospital over a 5 year period from 2006 to 2011. Cases in which acute prostatitis occurred within 7 days after the biopsy were investigated. Before starting treatment with antibiotics, sample collections were done for culture of urine and blood. Culture and drug susceptibility was identified by use of a method established by the Clinical and Laboratory Standards Institute.
RESULTS
A total of 1,814 biopsy procedures were performed in 1,541 patients. For 1,246 patients, the procedure was the first biopsy, whereas for 295 patients it was a repeat biopsy. Twenty-one patients (1.36%) were identified as having acute bacterial prostatitis after the biopsy. Fifteen patients (1.2%) had acute prostatitis after the first biopsy, and 6 patients (2.03%) experienced acute prostatitis after a repeat biopsy. Even though the incidence of acute bacterial prostatitis was higher after repeat biopsy than that after the first biopsy, there was no statistically significant intergroup difference in terms of incidence (chi2=1.223, p=0.269). When the collected urine and blood samples were cultured, Escherichia coli was found in samples from 15 patients (71.4%), Klebsiella pneumoniae in 3 patients (14.3%), Enterobacter intermedius in 1 patient (4.8%), E. aerogenes in 1 patient (4.8%), and Pseudomonas aeruginosa in 1 patient (4.8%). A fluoroquinolone-resistant strain was confirmed in 5 cases (23.8%) in total. Three cases of E. coli and 1 case of Klebsiella had extended-spectrum beta-lactamase activity.
CONCLUSIONS
Empirical treatment of acute prostatitis should be done with consideration of geographical prevalence and drug resistance. This study will provide meaningful information for the management of acute prostatitis after transrectal prostate biopsy.

Keyword

Acute diseases; Beta-lactamases; Biopsy; Fluoroquinolone; Prostate

MeSH Terms

Acute Disease
Anti-Bacterial Agents
beta-Lactamases
Biopsy
Drug Resistance
Enterobacter
Escherichia coli
Humans
Incidence
Klebsiella
Klebsiella pneumoniae
Medical Records
Prevalence
Prostate
Prostatitis
Pseudomonas aeruginosa
Retrospective Studies
Sprains and Strains
Anti-Bacterial Agents
beta-Lactamases

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