Prediction of Length of Stay Following Elective Percutaneous Coronary Intervention

Table 1

Risk score based on Wu et al.’s approach.

Risk factor	Score
Age (years)
56–64	1
65–74	3
75 and older	5
Women	1
Hemodynamic state
Unstable*	6
Shock*	9
Ejection fraction
<20%	3
20–29%	2
Preprocedural myocardial infarction
<24 h with stent thrombosis*	9
<6 h without stent thrombosis*	7
6–23 h without stent thrombosis*	6
1–14 days	4
>14 days	2
Peripheral arterial disease	2
Current heart failure	4
Past heart failure	3
Renal failure
Renal failure, creatinine >2.5 mg/dL	3
Renal failure, requiring dialysis	4
Left main coronary artery disease	3

*Not applicable to “elective” patient population.