Ji et al reported a score for predicting the risk of deep vein thrombosis (DVT) in a patient with intracerebral hemorrhage (ICH). The authors are from Capital Medical University, National Clinical Research Center for Neurological Diseases, Beijing Institute of Brain Disorders and Beijing Key Laboratory of Brain Function Reconstruction.
Patient selection: intracerebral hemorrhage
Outcome: in-hospital deep vein thrombosis
Parameters:
(1) age in years
(2) hematoma volume in mL
(3) subarachnoid extension
(4) pneumonia
(5) gastrointestinal bleeding
(6) length of stay in days
Parameter
Finding
Points
age in years
<= 49 years
0
50 to 79 years
4
>= 80 years
5
hematoma volume
< 30 mL
0
30 to 60 mL
2
> 60 mL
4
subarachnoid extension
no
0
yes
3
pneumonia
no
0
yes
4
gastrointestinal bleeding
no
0
yes
3
length of stay
< 7 days
0
7 to 14 days
9
>= 15 days
12
total score =
= SUM(points for all of the parameters)
Interpretation:
• minimum score: 0
• maximum score: 31
• The higher the score the greater the risk of deep vein thrombosis.
Total Score
Risk of DVT
0 to 5
very low
6 to 11
low
12 to 17
intermediate
18 to 23
high
24 to 31
very high
Performance:
• The area under the ROC curve is 0.81.
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