Long-term use of indwelling urinary catheters in nursing home (NH) patients is a potential cause of significant morbidity. We retrospectively studied 10 NH patients with chronic indwelling urinary catheters. Sixty-four percent of all 84 antibiotic courses prescribed were for bacteriuria alone without clinical infection. Seventy percent of 63 antibiotic courses were followed by bacteriuria with organisms resistant to the antibiotic administered. Bacteria isolated from NH patients often displayed greater resistance to specific antibiotics than those isolated from hospitalized patients. Four of the 20 urinary tract infections were associated with bacteremia. Three episodes of bacteremia were with highly-resistant organisms and one was fatal. Use of urinary catheters and inappropriate use of antibiotics in NH patients results in urinary tract colonization and infection with resistant bacteria and is an important cause of morbidity and mortality.

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