Table 1:

Patient clinical characteristics

Patient No.	Age	Sex	Shunt Location	Borden Classification	Symptom or Event
1	19	M	R CS	I	Red eye
2	22	F	L TS	II	Headache
3	27	F	R CS	I	Visual loss, red eye
4	51	M	L ASB	III	Free
5	51	M	R CS	I	Headache
6	60	M	R TS	I	Free
7	61	F	L TS	II	Headache, tinnitus
8	62	M	L TS	III	Loss of consciousness, intracranial hemorrhage
9	63	M	R TS	III	Vertigo, double vision
10	65	M	L TS	II	Tinnitus
11	70	F	R TS	I	Tinnitus
12	71	M	L CS	I	Headache, wamble
13	71	M	R TS	II	Free
14	72	F	L ASB	III	Paresthesia of the right arm
15	73	F	R CS	I	Visual field abnormality
16	75	F	L TS	I	Tinnitus
17	76	F	L TS	II	Tinnitus
18	77	F	R TS	I	Tinnitus
19	77	M	SSS	III	Vertigo, tinnitus
20	78	M	R TS	I	Visual loss
21	85	M	L TS	III	Headache, intracranial hemorrhage

Note:—R indicates right; L, left; TS, transverse sigmoid sinus; CS, cavernous sinus; ASB, anterior skull base; SSS, superior sagittal sinus.