Iannuzzi et al reported a risk for for predicting nonhome discharge following lower extremity bypass surgery. This can help to plan surgery and inform the patient. The authors are from the University of California San Francisco, Massachusetts General Hospital and University of Florida Gainesville.
Patient selection: bypass surgery on arteries of a lower extremity
Parameters:
(1) age in years
(2) sex
(3) race
(4) ambulation
(5) tissue loss
(6) anemia
(7) insulin dependent diabetes
Parameter
Finding
Points
age in years
< 60 years
0
60 to 69 years
2
70 to 79 years
4
>= 80 years
6
sex
male
0
female
1
race
white
0
nonwhite
2
ambulation
deficit
3
no deficit
0
tissue loss
no
0
yes
3
anemia
no
0
yes
2
insulin dependent DM
no
0
yes
2
total score =
= SUM(points for all of the parameters)
Interpretation:
• minimum score: 0
• maximum score: 19
• The risk of nonhome discharge (NHD) increases with the score.
• The risk is 5% with a score of 0, 50% with a score of 9 and 100% for a score of 17-19.
Total Score
Risk of NHD
0 to 4
low
5 to 9
moderate
10-19
high
Performance:
• The area under the ROC curve is 0.78.
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