Convulsions associated with sodium cefazolin: a case report

Area of Science:

• Pharmacology
• Nephrology
• Neuroscience

Background:

• Cefazolin is a common antibiotic used to treat bacterial infections.
• Acute renal failure (ARF) significantly impacts drug clearance and increases the risk of toxicity.
• Drug dosing must be carefully considered in patients with impaired renal function.

Observation:

• A patient with severe injuries and acute renal failure developed seizures.
• The patient received intravenous cefazolin post-operation.
• Elevated serum cefazolin levels (455 mg/ml) were recorded concurrently with seizure activity.

Findings:

• A potential correlation between high serum cefazolin concentrations and neurotoxic events, such as seizures, was observed.
• While direct causation is difficult to establish, the findings suggest a link between cefazolin accumulation and neurological adverse effects.
• The case highlights the risk of cefazolin neurotoxicity in the context of renal impairment.

Implications:

• Clinicians must be vigilant regarding the potential neurotoxicity of cefazolin, especially in patients with compromised renal function.
• Appropriate dose reduction or interval adjustment of cefazolin is critical for patients with acute renal failure to prevent toxicity.
• This case underscores the importance of therapeutic drug monitoring and individualized dosing strategies in critical care settings.