

Ep 01: A 65-year-old with low back pain
Feb 20, 2019
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NSAIDs Affect Kidney via Afferent Arteriole
- NSAIDs like naproxen can impair kidney function by causing constriction of the afferent arteriole.
- This happens due to inhibition of prostaglandin synthesis, reducing vasodilation and decreasing glomerular filtration rate.
Vascular Effects on GFR Explained
- Afferent arteriole constriction decreases glomerular filtration rate (GFR), while dilation increases GFR.
- Efferent arteriole constriction increases GFR, and dilation decreases it; these actions affect kidney perfusion.
Careful NSAID Use in Renal Impairment
- Use NSAIDs cautiously or avoid them in elderly patients or those with impaired renal function.
- Consider topical agents, acetaminophen, or judicious opioid use for pain management instead.