Mayo clinic risk score to predict major complications after percutaneous coronary intervention

Risk factor	Integer score
Age
90 to 99 years	6
80 to 89 years	5
70 to 79 years	4
60 to 69 years	3
50 to 59 years	2
40 to 49 years	1
Preprocedural shock	5
Left main coronary artery disease	5
Serum creatinine >3 mg/dL (265 µmol/L)	3
NYHA functional class III or IV heart failure	2
Urgent or emergent PCI	2
Multivessel disease	2
Thrombus on angiography	2
Score
0 to 5 - very low risk (≤2 percent complications)
6 to 8 - low risk (>2 to 5 percent)
9 to 11 - moderate risk (≥5 to 10 percent)
12 to 14 - high risk (>10 to 25 percent)
≥15 - very high risk (>25 percent)

Risk_score_complications_PC.htm

Data from Singh M, Lennon RJ, Holmes DR Jr, et al. J Am Coll Cardiol 2002; 40:387.

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