Household insecticide exposure linked to kidney injury in a healthy man

This case report describes a 55-year-old previously healthy male who developed acute kidney injury after household exposure to pyrethroid-containing aerosol insecticide. The patient was biopsied and found to have acute tubular necrosis and acute interstitial nephritis. Over a three-week follow-up period, his renal function progressively deteriorated before partially improving and stabilizing at stage 3 chronic kidney disease. The findings suggest that inappropriate exposure to pyrethroids may be associated with clinically significant nephrotoxicity in this specific instance. However, biopsy-confirmed nephrotoxicity in humans remains sparsely documented, particularly in cases of non-occupational exposure. Clinicians should consider this environmental toxicant in the differential diagnosis of otherwise unexplained acute kidney injury. Readers should understand that this is a single case report and not a large trial. More research is needed to confirm if this risk applies to the general population or only in specific circumstances. This information is based on a small number of patients and does not represent a proven cause-and-effect relationship for everyone.