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Acute pyelonephritis can have serious complications
Joanne Shields1, Alexander P Maxwell
1Regiona Nephrology Unit, Belfast City Hospital.
The Practitioner
|May 22, 2010
Summary
Acute pyelonephritis, a kidney infection, is more common in young women but affects older men similarly. Recurrent infections are a risk, especially in women, with E. coli being the primary cause.
Area of Science:
- Nephrology
- Infectious Diseases
- Urology
Background:
- Urinary tract infections (UTIs) can affect the lower urinary tract (cystitis) or upper urinary tract (acute pyelonephritis).
- Acute pyelonephritis incidence is higher in young women, but similar in men over 65 and older women.
- Women face a 10% risk of recurrent pyelonephritis post-episode, compared to 6% in men.
Purpose of the Study:
- To summarize the epidemiology, causes, complications, and risk factors of acute pyelonephritis.
- To highlight the increasing prevalence of antibiotic-resistant bacteria, such as ESBL-producing organisms.
Main Methods:
- Literature review and synthesis of existing data on acute pyelonephritis.
- Analysis of common uropathogens and emerging resistance patterns.
Main Results:
- *E. coli* is the predominant cause (70-90%) of pyelonephritis.
- Complications include acute kidney injury, abscess formation, and emphysematous pyelonephritis.
- Rising incidence of extended-spectrum beta-lactamase (ESBL) producing bacteria necessitates awareness of antibiotic resistance.
Conclusions:
- Acute pyelonephritis presents with varying risks of recurrence and complications.
- Understanding risk factors is crucial for managing both uncomplicated and complicated cases.
- The emergence of antibiotic-resistant strains poses a significant challenge in UTI treatment.
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