S-C-C Score of Ji et al for Predicting Risk of Neurological Complications Following Endovascular Therapy of an Unruptured Intracranial Aneurysm

 

Patient selection: unruptured intracranial aneurysm

 

Outcome: neurological complication following the procedure

 

Parameters:

(1) size (S) in mm

(2) location of the aneurysm in a core (C) site

(3) cerebral ischemic comorbidity (C, history of ischemic stroke, etc)

 

Core areas include:

(1) perforators

(2) important small vessels supplying the thalamus

(3) important small vessels supplying the basal ganglia

(4) important small vessels supplying the brain stem

Parameter	Finding	Points
size in mm	< 10 mm	0
	>= 10 mm	1
core location	no	0
	yes	1
cerebral ischemic comorbidity	absent	0
	present	1

 

S-C-C score =

= SUM(points for all 3 parameters)

 

Interpretation:

• minimum score: 0

• maximum score: 3

• The higher the score the greater the risk of a neurological complication.

 

Score	Percent Neurological Complications
0	2%
1	10%
2	18%
3	25-33%

 

Performance:

• The area under the ROC curve was 0.71.