Infection
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Inclusion criteria for acute uncomplicated cystitis were studied in a total of 307 patients. The data on recurrence should be grouped according to age or menopause, because recurrence was observed only in postmenopausal patients, and the mean age was significantly higher in the recurrence group than in the non-recurrence group. Bacteriuria of 10(3) and 10(4) cfu/ml could be included only when urine was collected by catheterization or very careful clean-catch method, because the incidence of uropathogens was significantly low even in patients with bacteriuria of 10(4) cfu/ml, when urine was collected by conventional midstream catch.
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We examined the value of the dipstick test for detecting pyuria and bacteriuria in the diagnosis of urinary tract infection (UTI). The dipstick esterase test could be quickly assessed and could easily detect leukocyte esterase in the urine. This was well correlated with the conventional sedimentation method. ⋯ One of the reasons for this is the formation of biofilm around the indwelling catheter. We attempted to evaluate the effect of catheter exchange just before treatment of catheter-associated UTI with either 300 or 600 mg/day of levofloxacin, one of the newer quinolones. However, we are unable to find any apparent effect on the drug's efficacy.