What are possible complications of obstruction in urinary tract infection (UTI)?

Updated: Jul 01, 2021
  • Author: Tibor Fulop, MD, PhD, FACP, FASN; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Answer

Complications of obstruction with superimposed infection include hydronephrosis, pyonephrosis, urosepsis, and xanthogranulomatous pyelonephritis. Additionally, the pathogens can sequester in the struvite stones, protected from the host’s immune system. Proteus species are the most common urea-splitting organisms. E coli, Klebsiella, Pseudomonas, and Staphylococcus can also produce urease, however, and are sometimes involved in staghorn calculus formation.


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