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[Urinary bacteria in elderly patients with urinary incontinence and low levels of daily activity].

The results of bacteria isolated from the urine of inactive elderly patients with urinary incontinence in 1982, 87, 93 and 95 were compared and the chronological changes of urinary bacteria were analyzed. The following results were obtained: (1) The most common bacteria isolated from the patients in 1995 were D-group Enterococcus, followed by Providencia rettgeri, E. coli, Pseudomonas aeruginosa and Proteus mirabilis. It is thought that the main cause of the more frequent isolation of Enterococcus is an abuse of cephems and fecal contamination. (2) The most common bacteriaisolated from the patients who were managed with an indwelling urethral catheter were Proteus and Providencia species, and their incidence tended to decrease from 1982 to 1995. (3) Infection with Pseudomonas species tended to increase, as did that Staphylococcus species, especially Methicillin-resistant Staphylococcus aureus and then decreased. Based on these findings, it is important to assess and treat dysuria before inserting an indwelling urethral catheter, and to select an antibacterial agent that is effective in elderly patients with urinary incontinence and limited activity.