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[Acute interstitial nephritis and streptococcal infection]
A Kolko1, F Brevet, B Mougenot
1Service de Médecine Interne et Néphrologie, Centre Hospitalier Général, Valenciennes.
Nephrologie
|January 1, 1994
Summary
Acute interstitial nephritis (AIN) in patients with streptococcal erysipela can resolve with antibiotic treatment alone. This suggests some AIN cases linked to infection may be misdiagnosed as antibiotic hypersensitivity.
Area of Science:
- Nephrology
- Infectious Diseases
- Pathology
Background:
- Acute interstitial nephritis (AIN) is a kidney condition often associated with infections or drug reactions.
- Streptococcal erysipela is a bacterial skin infection that can have systemic implications.
- Differentiating infection-induced AIN from drug-induced AIN is crucial for appropriate management.
Observation:
- Two cases of acute renal failure were observed in patients presenting with streptococcal erysipela.
- Renal biopsies in both patients revealed acute interstitial nephritis characterized by a significant mononuclear cell infiltrate.
- Neither patient received steroid therapy.
Findings:
- Both patients experienced a complete recovery of renal function following treatment with beta-lactam antibiotics.
- The renal pathology in these cases was consistent with AIN.
- The recovery pattern suggests a favorable response to antibiotics without immunosuppression.
Implications:
- This study suggests that infection, specifically streptococcal erysipela, can be a direct cause of acute interstitial nephritis.
- It highlights the possibility of misattributing AIN to antibiotic hypersensitivity when an underlying infection is the true etiology.
- The findings support a conservative treatment approach with antibiotics alone for AIN in the context of certain infections, potentially avoiding unnecessary steroid use.