Abstract：
:Hemifacial spasm is a cranial nerve compression syndrome caused by impingement on the facial nerve most frequently by the anterior inferior cerebellar artery or the posterior inferior cerebellar artery. It can be treated with microvascular decompression (MVD) to separate the nerve from the offending artery. Rarely, a large-caliber vessel such as a dolichoectatic vertebrobasilar system may be implicated, requiring more than an MVD. One technique involves placing a sling around the offending vessel to decompress the facial nerve. We find our "neck-tie" technique to be unique and present it in this detailed video. A 36-year-old-woman presented with a 3-month history of severe left hemifacial spasm refractory to medical management. Imaging demonstrated compression of the left facial nerve and its root entry zone by a dolichoectatic vertebrobasilar complex and anterior inferior cerebellar artery. A left retrosigmoid craniotomy was performed. A Dacron sling was placed around the offending vertebral artery in a "neck-tie" fashion. This sling was used to displace the vertebral artery off of the facial nerve and the sling was then sutured in its final position to the petrous dura. In addition, MVD was performed around the facial nerve's root entry zone. Following sling placement and MVD, neuromonitoring demonstrated absence of abnormal motor responses. Postoperative course was uneventful, she remained neurologically intact, and she remained free of symptoms at 6 months' follow-up. This video highlights the decision making for selecting the appropriate case of hemifacial spasm for sling decompression, the key technical nuances, and complication avoidance in these challenging cases.
journal_name
World Neurosurgjournal_title
World neurosurgeryauthors
Jha RT,Kumar J,Pressman E,Agazzi Sdoi
10.1016/j.wneu.2019.08.109subject
Has Abstractpub_date
2019-12-01 00:00:00pages
134eissn
1878-8750issn
1878-8769pii
S1878-8750(19)32265-Xjournal_volume
132pub_type
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