Renal failure during intermittent rifampicin therapy

Area of Science:

• Nephrology
• Pharmacology
• Pathology

Background:

• Rifampicin is a key antibiotic for treating tuberculosis and other infections.
• Adverse renal effects from rifampicin, though uncommon, necessitate careful monitoring.
• Understanding the mechanisms of drug-induced kidney injury is crucial for patient safety.

Observation:

• Two patients experienced acute renal failure during intermittent rifampicin treatment.
• Both patients presented with febrile reactions coinciding with the onset of renal dysfunction.
• Histopathological analysis revealed specific kidney damage patterns in each patient.

Findings:

• The first patient exhibited uremia with glomerular endothelial cell swelling.
• The second patient developed acute tubular necrosis without hemolysis or shock.
• Microscopy, immunofluorescence, and electron microscopy elucidated the pathogenesis of the renal lesions.

Implications:

• These cases underscore the risk of reversible kidney injury associated with rifampicin.
• The findings emphasize the importance of early detection and diagnosis of rifampicin-induced nephrotoxicity.
• Further research into the specific mechanisms of rifampicin nephrotoxicity may inform safer prescribing practices.