Wall et al reported a clinical risk score for predicting 30-day mortality following percutaneous coronary intervention (PCI). This can help to identify a patient who may benefit from more aggressive management. The authors are from the University of Sheffield and multiple institutions in England and Wales.
Patient selection: PCI
Outcome: 30-day mortality
Parameters:
(1) age in years
(2) cardiogenic shock
(3) diabetes mellitus
(4) history of renal disease
(5) acuity of the procedure
Parameter
Finding
Points
age in years
0.052 * (age)
cardiogenic shock
absent
0
present
2.044
diabetes mellitus
absent
0
present
0.378
history of renal disease
absent
0
present
1.353
acuity of procedure
elective
0
urgent
0.585
emergenc
2.168
X =
= SUM(points for all 5 parameters) - 8.673
probability of mortality =
= 1 / (1 +EXP((-1) * X))
Performance:
• The area under the ROC curve is is 0.82.
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