🧫 Mehran Score (Contrast-Induced Nephropathy)
Predict contrast-induced nephropathy risk after PCI with the Mehran score.
Mehran Score (Contrast-Induced Nephropathy)
Hypotension
Intra-aortic balloon pump
Congestive heart failure
Age > 75
Anaemia
Diabetes
Contrast volume (mL)
eGFR
When to use
Identify patients needing renal protection around contrast procedures.
How it works
Hypotension 5, IABP 5, CHF 5, age > 75 4, anaemia 3, diabetes 3, contrast 1/100 mL, eGFR 40–60 (2)/20–40 (4)/<20 (6). ≤5 low to ≥16 very high.
Key points
- Risk rises steeply across strata (≈7.5% to ≈57%).
- Minimise contrast volume and ensure hydration.
- Hold nephrotoxins and monitor renal function.
References
Decision support for licensed clinicians only; not a substitute for clinical judgement, diagnosis or local protocols.