Urinary tract infections and chronic renal failure

Česká verzia

Authors: D. Sobotová
Authors place of work: II. interní klinika Lékařské fakulty MU a FN u sv. Anny v Brně, přednosta prof. MUDr. Miroslav Souček, CSc.
Published in the journal: Vnitř Lék 2011; 57(7&8): 626-630
Category: 136th internal medicine day, XXIV. Vanýskův den, Brno 2011

Summary

The paper briefly summarizes issues related to urinary tract infections in adults:
predispositions and risk factors, classification, assessment of pathogenicity of bacterial agents, the role of bacteriuria and leucocyturia, interpretation of findings, treatment principles and an association with chronic renal failure. Urinary tract infections are the second most frequent infectious disease in the population. They most often affect women of childbearing potential and then seniors of both sexes who have multiple risk factors. Escherichia coli and Staphylococcus saprophyticus are the most pathogenic towards urinary tract; they are responsible for 85% and 10–15% of cases of acute uncomplicated urinary infections, respectively. Chronic pyelonephritis, a chronic interstitial nephritis, is the fourth most frequent cause of chronic renal failure. Chronic renal failure is a risk factor for the development of urinary infections due to metabolic disorders resulting in secondary immunodeficiency with a disorder of all components of immunity. In patients with chronic renal failure, urinary tract infections occur most frequently after kidney transplantation when graft pyelonephritis is a life-threatening complication. Therefore, urinary tract infection prevention with co-trimoxazole once daily over at least 6 months is recommended in renal allograft recipients.

Key words:
urinary tract infections – pathogenicity of bacterial agents – significant bacteriuria – significant leucocyturia – chronic renal failure – renal transplantation

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