TABLE.

Clinical Characteristics of 21 Patients With Trigeminal Neuralgia Caused by Venous Compression

Characteristic	Value
Age, mean (range), y	55.2 ± 16 (26-79)
Sex, No. (%)
Male	4 (19)
Female	17 (81)
Side of pain, No. (%)
Right	10 (48)
Left	11 (52)
Pain distribution, No.
V2	6
V3	5
V1/V2	5
V2/V3	4
V1/V2/V3	1
Second surgery, No.	4
Sacrificed veins, No.
Transverse pontine vein	10
Superior petrosal vein	11
Veins of blood flow conversion, No.
Transverse pontine vein	10
Vein of middle cerebral peduncle	1
Pain relief, No.
BNI I	17
BNI II	2
BNI IV	2
Numbness at discharge, No. (%)	9 (43)
Numbness at final visit, No. (%)	5 (24)
Complications, No.	0

BNI, Barrow Neurological Institute Pain Intensity score