The aid of computerized tomography in hemifacial spasm.
Although the physiopathological mechanisms causing hemifacial spasm are not clearly understood, it is generally accepted that the causative factor is compression of the facial nerve at its root exit zone. In this paper we present seven cases of hemifacial spasm which were studied by dynamic CT scanning in the preoperative period, and treated with microvascular decompression. We suggest that CT scanning has considerable diagnostic value in disclosing the asymmetrical vascular formation causing root exit zone compression and that microvascular decompression should be the treatment of choice in this condition.
Pamir
M N
MN
Department of Neurosurgery, Marmara University School of Medicine, Istanbul, Turkey.
Ozer
A F
AF
Keles
G E
GE
Erzen
C
C
Gürmen
N
N
D000328:Adult; D000368:Aged; D002530:Cerebellopontine Angle / Q000098:blood supply; D004108:Dilatation, Pathologic / Q000150:complications / Q000000981:diagnostic imaging; D005152:Facial Muscles / Q000000981:diagnostic imaging*; D005155:Facial Nerve Diseases / Q000000981:diagnostic imaging* / Q000209:etiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009408:Nerve Compression Syndromes / Q000000981:diagnostic imaging* / Q000209:etiology; D013035:Spasm / Q000000981:diagnostic imaging* / Q000209:etiology; D014057:Tomography, X-Ray Computed; D014652:Vascular Diseases / Q000150:complications / Q000000981:diagnostic imaging; D014711:Vertebral Artery / Q000000981:diagnostic imaging