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J Urol. 1989 Feb;141(2):328-31.

Case-control study of men with suspected chronic idiopathic prostatitis.

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Department of Urology, University of Washington School of Medicine, Seattle.


We studied prospectively 50 asymptomatic men (24 men from infertile couples and 26 normal volunteers) with no history of genitourinary infection and 34 men referred for symptoms of chronic prostatitis. Both groups were evaluated by urethral and prostatic secretion cultures for Chlamydia trachomatis, 4-glass prostatic localization cultures for facultative aerobic bacteria (Ureaplasma urealyticum, Mycoplasma hominis and selected fungi) and counts of prostatic fluid leukocytes. The men with symptoms of prostatitis had more than 1,000 leukocytes per mm. in prostatic secretions more often than did controls (11 of 27 versus 0 of 44, p less than 0.001). The concentration of Ureaplasma urealyticum in prostatic secretions was 1 log higher in prostatic fluid localization cultures than in first voided urine in 0 of 30 patients versus 13 of 50 controls (p equals 0.0014). Chlamydia trachomatis was not isolated from any patient or control. No other significant differences were found between patients and controls. We did not identify an infectious cause of chronic nonbacterial prostatitis.

[Indexed for MEDLINE]

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