Urethral syndrome (abacterial cystitis)--search for a pathogen.

Area of Science:

• Urology
• Microbiology
• Pathology

Background:

• Recurrent urethral syndrome, also known as abacterial cystitis, affects numerous women.
• The etiology of this condition remains largely enigmatic, with limited understanding of potential causes.

Purpose of the Study:

• To investigate the microbiological, cytological, and histological factors associated with recurrent urethral syndrome.
• To identify potential etiological agents or underlying pathological processes in affected women.

Main Methods:

• Extensive microbiological analysis of bladder aspirates and voided urine.
• Cytological examination of urethral samples.
• Histological examination of bladder biopsies.
• Cystoscopic evaluation.

Main Results:

• Microbiological investigations identified a potential cause in only 4 out of 31 patients (Streptococcus species, wall-deficient Streptococcus, Lactobacillus, Ureaplasma urealyticum).
• Lactobacilli were common in voided urine of both patients and controls.
• Chlamydia trachomatis and Herpes simplex were detected in one patient.
• Urethral cytology was normal in all patients.
• Cystoscopy revealed trigonitis in 26 patients.
• Bladder biopsies showed squamous metaplasia (15 patients) and lymphocytic infiltration (29 patients).

Conclusions:

• The study suggests that recurrent urethral syndrome is unlikely to be primarily caused by bladder infections in most cases.
• Findings support an inflammatory etiology, evidenced by cystoscopic and histological changes.
• Further research is needed to fully elucidate the pathogenesis of this syndrome.