Urease-positive bacteriuria and obstruction of long-term urinary catheters.

Journal of Clinical Microbiology
H L Mobley, J W Warren

Abstract

Long-term urethral catheterization (greater than or equal to 30 days), a management technique for urinary incontinence, results in polymicrobial bacteriuria. We frequently found urease-producing bacteria: of 1,135 weekly urine specimens from 32 long-term-catheterized patients, 86% had urease-positive bacterial species at greater than or equal to 10(5) CFU/ml. The most common species were Proteus mirabilis and Morganella morganii, each found in over half the specimens. P. mirabilis, but not other urease-positive species, was significantly associated with the 67 obstructions observed in 23 patients. M. morganii had a more complex association and in some way may protect the catheter from obstruction.

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Citations

Oct 1, 1996·Journal of the American Geriatrics Society·T T YoshikawaD C Norman
Feb 23, 1999·Molecular Microbiology·C A Murphy, R Belas
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Apr 7, 2010·Infection and Immunity·Melanie M PearsonHarry L T Mobley
Sep 1, 1993·Molecular Microbiology·C M Collins, S E D'Orazio

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