[Pyelonephritis]

Cristiana Rollino1, Giulietta Beltrame, Michela Ferro

  • 1Nefrologia e Dialisi, Ospedale S.G. Bosco, Torino - Italy.

Insights

Acute pyelonephritis (APN), often caused by E. coli, is a common kidney infection. While typically treatable with antibiotics, imaging like CT or MRI is crucial for detecting serious complications such as abscesses.

Area of Science:

  • Nephrology
  • Infectious Diseases
  • Urology

Context:

  • Acute pyelonephritis (APN) is a common bacterial kidney infection, primarily affecting women.
  • Escherichia coli (E. coli) is the predominant causative agent.
  • Risk factors include sexual activity, genetic predisposition, advanced age, and urinary tract instrumentation.

Purpose:

  • To review the etiology, diagnosis, treatment, and long-term outcomes of acute pyelonephritis in adults.
  • To highlight the diagnostic utility of advanced imaging techniques.
  • To discuss the management of complications like renal abscesses.

Summary:

  • Diagnosis is often clinical, but Computed Tomography (CT) and Magnetic Resonance Imaging (MRI) enhance accuracy and detect abscesses.
  • Treatment involves fluoroquinolones or extended-spectrum cephalosporins for 10-14 days.
  • Renal abscesses are underestimated complications requiring CT/MRI evaluation; drainage is reserved for large abscesses, with medical management successful in most cases.

Impact:

  • Early and accurate diagnosis, including the use of CT/MRI, can prevent severe complications.
  • Appropriate antibiotic selection and duration ensure favorable long-term outcomes for most adult patients.
  • Understanding the prevalence and management of renal abscesses improves patient care and reduces morbidity.

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