The Mehran risk score for the prediction of CIN9
| Mehran score periprocedural CIN risk factor | Score | |||
|---|---|---|---|---|
| Hypotension (SBP <80 mm Hg or >1 h of inotropic support) | 5 | |||
| Intra-arterial balloon pump therapy | 5 | |||
| Chronic heart failure, (NYHA III/IV or recent pulmonary oedema) | 5 | |||
| Age >75 years | 4 | |||
| Diabetes mellitus | 3 | |||
| Anaemia (male: HCT<0.39, female: HCT<0.36) | 3 | |||
| Estimated glomerular filtration rate <20 mL/min | 6 | |||
| Estimated glomerular filtration rate 20–40 mL/min | 4 | |||
| Estimated glomerular filtration rate 40–60 mL/min | 2 | |||
| Contrast media volume | 1 per cc | |||
| Score | <5 | 6–10 | 11–16 | >16 |
| CIN risk | Low 7.5% | Moderate 14% | High 26.1% | Very high 57.3% |
| Dialysis risk | 0.04% | 0.12% | 1.09% | 12.6% |
CIN, contrast-induced nephropathy; HCT, haematocrit; NYHA, New York Heart Failure Association; SBP, systolic blood pressure.