Renal Microvascular Ischemia Secondary to Nonsteroidal Anti-inflammatory Drugs.

Nonsteroidal anti-inflammatory drugs (NSAIDs), widely prescribed for pain, can affect kidneys in various ways. We present a case of a 37-year-old woman with multiple NSAIDs intake over a short period for dysmenorrhea followed by the development of new-onset bilateral flank pain. Computed tomography revealed bilateral multiple renal infarcts. Renal function was normal. Investigations showed no cardiac or renal artery lesion and vasculitis work-up was negative. She was treated conservatively and further NSAID intake was avoided. Follow-up scan showed complete restoration of the blood flow in previously affected areas. Thus, microvascular ischemia secondary to NSAIDs was thought to be responsible.