Angles et al reported a score (VENSCORE) the predicts failure of peripheral intravenous cannula insertion at the first attempt in adults. This can help to identify a patient who may require greater care. The authors are from multiple institutions in France and Canada.
VENSCORE = VENIpuncture SCale in Operating Room)
Patient selection: pre-operative adult, peripheral intravenous insertion
Parameters:
(1) history of difficult peripheral intravenous catheter insertion
(2) high-risk surgical procedure
(3) visual appearance score, from 0 (very poor) to 100 (very good)
(4) palpable appearance score, from 0 (very poor) to 100 (very good)
Parameter
Finding
Points
history of difficult insertion
no
0
yes
2
high-risk procedure
no
0
yes
1
visual inspection
0 to 30 (poor)
1
31 to 100 (moderate to good)
0
palpable appearance
0 to 30 (poor)
2
31 to 70 (moderate)
1
71 to 100 (good)
0
total score =
= SUM(points for all of the parameters)
Interpretation:
• minimum VENSCORE: 0
• maximum VENSCORE: 6
VENSCORE
Failure
0
7%
1
17%
2
35%
3
60%
4
80%
5
92%
6
97%
Performance:
• The area under the ROC curve is 0.82.
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