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Aminoglycoside-induced Fanconi's syndrome
J Z Melnick1, M Baum, J R Thompson
1Parkland Memorial Hospital, Dallas, TX.
Summary
Aminoglycoside antibiotics can cause kidney damage, specifically Fanconi's syndrome, in hospitalized patients. Promptly discontinuing the antibiotic typically restores normal kidney function.
Area of Science:
- Nephrology
- Pharmacology
- Internal Medicine
Background:
- Aminoglycosides are critical antibiotics for severe bacterial infections.
- Nephrotoxicity is a known adverse effect of aminoglycoside therapy.
- Proximal tubular dysfunction, or Fanconi's syndrome, is a specific manifestation of kidney injury.
Observation:
- Two cases of aminoglycoside-induced nephrotoxicity presenting as Fanconi's syndrome are reported.
- The patients experienced tubular dysfunction at the extremes of renal function.
- Renal tubular function normalized after cessation of the aminoglycoside antibiotic.
Findings:
- Aminoglycoside administration can lead to proximal tubular dysfunction (Fanconi's syndrome).
- This nephrotoxicity can occur even in patients with pre-existing renal impairment.
- Discontinuation of the offending antibiotic is effective in reversing the tubular damage.
Implications:
- Clinicians should be vigilant for Fanconi's syndrome in patients receiving aminoglycosides, especially those with renal compromise.
- Monitoring and management of fluid, electrolyte, and nutritional status are crucial in these patients.
- Early recognition and intervention can prevent long-term renal complications.