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A necropsy case of interstitial nephritis probably related to cefazolin and methenamine
Abstract:
It is the purpose of this paper to alert the medical community on the potential nephrotoxicity of certain agents among certain patients, especially with some types of renal insufficiency. A young man, who was suffering from apparent renal disturbance, died of massive, post-operative bleeding accompanied by uremia. The uremia occurred within a very rapid clinical course and was related apparently to treatment with methenamine, a ruinary disinfectant, and cefazolin, a cephalosporin derivative. The patient was proved to have a fatal, servere interstitial nephritis based on gross and histological findings of the necropsied kidney, i.e., intense cell infiltration mainly in the interstitum of the cortex, absence of glomerular involvement, and marked softening and enlargement. The present case may suggest how to treat patients suffering from untoward renal ailments with various antibiotics.
Insights
Methenamine and cefazolin can cause severe interstitial nephritis, leading to fatal uremia in patients with renal insufficiency. This case highlights the potential nephrotoxicity of these drugs.
Area of Science:
- Nephrology
- Pharmacology
- Pathology
Background:
- Alerting the medical community to potential drug-induced nephrotoxicity in patients with renal insufficiency.
- Highlighting the risks associated with specific urinary disinfectants and antibiotics.
Observation:
- A young male patient with pre-existing renal disturbance experienced rapid uremia and died from post-operative bleeding.
- The patient's condition rapidly deteriorated following treatment with methenamine and cefazolin.
Findings:
- Post-mortem examination revealed severe, fatal interstitial nephritis.
- Kidney histology showed intense interstitial cell infiltration without glomerular involvement, along with softening and enlargement.
Implications:
- This case underscores the critical need for careful monitoring of renal function in patients receiving methenamine and cefazolin, particularly those with compromised kidney function.
- Suggests a need for cautious antibiotic selection and management in patients with renal ailments to prevent adverse events like drug-induced interstitial nephritis.