Changes In Bacterial Flora Associated With Kidney Stones: An Analysis Of Reported Literature

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Main Category: Urology / Nephrology
Article Date: 02 Jul 2008 - 2:00 PDT

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ORLANDO, FL (UroToday.com) - Dr. Romero examined the changing trend of bacterial culture isolates associated with renal urinary stones.

To examine the current literature on stone culture results, a literature search using the PubMed and Ovid was performed, the results revealed a total of 12 manuscripts from 1984 to 2007 with stone culture data.

In the recent literature, the most common bacterial isolates associated with renal urolithiasis were E. coli, Enterococcus, Proteus, Pseudomonas and Klebsiella species. A definite decreasing trend in the incidence of Proteus species isolates was observed from 56% to 9% while an increasing trend of Enterococcus isolates from 0.05% to 25%.

They concluded that the trend could be attributed toan increased use of newer antibiotics, although more recently the bacterial islolates from non-infectious stones have been studied more frequently and could partially explain the reported change. This may be an important consideration when determining the type of prophalactic antibiotic administered prior to PCNL.

Presented by Victoriano Romero, MD, and Roger Low, MD, at the Annual Meeting of the American Urological Association (AUA) - May 17 - 22, 2008. Orange County Convention Center - Orlando, Florida, USA.

Reported by UroToday.com Contributing Editor Aldrin Joseph R. Gamboa, MD

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