The association between vertebrobasilar dolichoectasia and hemifacial spasm

Abstract Background Hemifacial spasm (HFS) is frequently caused by vascular compression of the facial nerve. Vertebrobasilar dolichoectasia (VBDE) may cause vascular crowding in the limited space of the posterior fossa, increasing the chance of vascular compression of the facial nerve. We investigat...

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Bibliographic Details
Published in:Parkinsonism & related disorders 2016-11, Vol.32, p.54-59
Main Authors: Kim, Kyeong Joon, Kim, Jong-Min, Bae, Yun Jung, Bae, Hee Joon, Jeon, Beomseok, Kim, Jae Hyung, Han, Jeong Ho, Oh, Chang Wan
Format: Article
Language:English
Subjects:
Adult
Aged
Case-Control Studies
Female
Hemifacial spasm
Hemifacial Spasm - diagnostic imaging
Hemifacial Spasm - epidemiology
Humans
Image Processing, Computer-Assisted
Magnetic Resonance Imaging
Male
Middle Aged
Neurology
Prevalence
Retrospective Studies
Statistics, Nonparametric
Vertebrobasilar dolichoectasia
Vertebrobasilar Insufficiency - complications
Vertebrobasilar Insufficiency - diagnostic imaging
Vertebrobasilar Insufficiency - epidemiology
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Summary:Abstract Background Hemifacial spasm (HFS) is frequently caused by vascular compression of the facial nerve. Vertebrobasilar dolichoectasia (VBDE) may cause vascular crowding in the limited space of the posterior fossa, increasing the chance of vascular compression of the facial nerve. We investigated the prevalence of VBDE in HFS. Methods We analyzed the presence of VBDE on 3.0 T magnetic resonance images in patients with HFS and control subjects; age, sex and hypertension were matched. Two blinded readers independently assessed the images. We evaluated the vascular risk factors, including diabetes mellitus, hyperlipidemia, ischemic heart disease, stroke, and presence of lacunes. Results A total of 310 patients with HFS and 310 control subjects were included. The prevalence of VBDE was higher in patients with HFS (48/310, 15.5%) than in controls (10/310, 3.2%), with an odds ratio (OR) of 5.82 ( P  
ISSN:1353-8020
1873-5126
DOI:10.1016/j.parkreldis.2016.08.015