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A case of cephalothin-associated urolithiasis
Ivan Wm Lim1, Peter Jo Stride, Robert L Horvath
1Department of Medicine, Redcliffe Hospital, Redcliffe, Queensland, Australia.
Clinical Pharmacology : Advances and Applications
|January 31, 2012
Summary
Prolonged cephalothin treatment for osteomyelitis can lead to calcium oxalate stones. Patients with lower urinary tract symptoms on long-term beta-lactam antibiotics may develop urolithiasis, not infection.
Area of Science:
- Nephrology
- Infectious Diseases
- Pharmacology
Background:
- Osteomyelitis often requires extended courses of intravenous antibiotics.
- Cephalothin, a common beta-lactam antibiotic, is frequently used for bone infections.
- Long-term antibiotic therapy can present unique complications.
Observation:
- A patient undergoing prolonged intravenous cephalothin for osteomyelitis developed symptomatic calcium oxalate urocalculi.
- The patient presented with lower urinary tract symptoms.
Findings:
- Symptomatic calcium oxalate urolithiasis occurred as a complication of long-term cephalothin therapy.
- Beta-lactam antibiotics, including cephalothin, are associated with nephrotoxicity and stone formation.
- The formation of calcium oxalate stones was directly linked to the extended antibiotic treatment.
Implications:
- Clinicians should consider urolithiasis in patients on long-term beta-lactam antibiotics presenting with lower urinary tract symptoms.
- Differentiating urolithiasis from urinary tract infection is crucial for appropriate management.
- This case highlights the importance of monitoring for iatrogenic complications during extended antibiotic regimens.
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