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© Research
Publication : JCI insight

Bladder catheterization increases susceptibility to infection that can be prevented by prophylactic antibiotic treatment

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in JCI insight - 22 Sep 2016

Rousseau M, Goh HMS, Holec S, Albert ML, Williams RB, Ingersoll MA, Kline KA

Link to Pubmed [PMID] – 27699248

JCI Insight 2016 09;1(15):e88178

Catheter-associated urinary tract infections (CAUTI) are the most common hospital-associated infections. Here, we report that bladder catheterization initiated a persistent sterile inflammatory reaction within minutes of catheter implantation. Catheterization resulted in increased expression of genes associated with defense responses and cellular migration, with ensuing rapid and sustained innate immune cell infiltration into the bladder. Catheterization also resulted in hypersensitivity to and uropathogenic (UPEC) infection, in which colonization was achieved using an inoculum 100-fold lower than the ID for infection of an undamaged urothelium with the same uropathogens. As the time of catheterization increased, however, colonization by the Gram-positive uropathogen . was reduced, whereas catheterization created a sustained window of vulnerability to infection for Gram-negative UPEC over time. As CAUTI contributes to poorer patient outcomes and increased health care expenditures, we tested whether a single prophylactic antibiotic treatment, concurrent with catheterization, would prevent infection. We observed that antibiotic treatment protected against UPEC and . bladder and catheter colonization as late as 6 hours after implantation. Thus, our study has revealed a simple, safe, and immediately employable intervention, with the potential to decrease one of the most costly hospital-incurred infections, thereby improving patient and health care economic outcome.

https://www.ncbi.nlm.nih.gov/pubmed/27699248