Several other bacterial pathogens and yeasts have also been implicated. In addition, long-term catheterization may give rise to urethritis, urinary calculi, epididymitis, vesicoureteral reflux, chronic pyelonephritis, and chronic tubulointerstitial nephritis with deformed calyces and scarring of the renal parenchyma. Maintenance of the integrity of the closed urinary system is also of utmost importance. The use of bladder irrigation, the addition of antibacterial chemicals in collection bags, the use of silver-coated catheters, and the use of methenamine to reduce bacteriuria have shown equivocal results. Treatment The need to treat asymptomatic bacteriuria in catheterized elderly patients is not supported by current data.
Some experts recommend removing and replacing the catheter.
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