Fluoroquinolone resistance and clinical characteristics of acute bacterial prostatitis in Japan: A multicenter study by the Japanese Research Group for Urinary Tract Infection
Abstract
OBJECTIVE
This multicenter study aimed to analyze the risk factors for fluoroquinolone (FQ) resistance and to clarify the clinical characteristics of acute bacterial prostatitis (ABP) in Japan.
METHODS
A total of 124 patients clinically diagnosed with ABP at 13 medical institutions participating in the Japanese Research Group for Urinary Tract Infection between January and December 2017 were retrospectively reviewed.
RESULTS
Of the 124 patients included in this study, 37 were outpatients, and 87 were inpatients. The main underlying medical conditions before the onset of ABP were severe dysuria, urinary retention, transurethral manipulation, indwelling urinary catheter, and transrectal prostate biopsy (TRBx). The main symptoms were fever (≥ 37.5°C), prostate tenderness, dysuria, micturition pain, urinary retention, and macrohematuria. Bacteremia was observed in 14 patients. Prostatic abscess was observed in three patients. Escherichia coli was the predominant organism, accounting for 48% (51/106). FQ-resistant E. coli was detected in 33% (17/51), and extended-spectrum beta-lactamases-producing E. coli in 12% (6/51). TRBx (odds ratio [OR] = 48.60, 95% confidence interval [CI]: 5.49-430.00, p < 0.001) and inpatient status (OR = 29.00, 95% CI: 1.95-430.00, p = 0.014) were risk factors for the detection of FQ-resistant bacteria.
CONCLUSIONS
The detection rate of FQ-resistant bacteria was significantly higher with TRBx ABP and inpatient status. These findings have important…
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