Article Figures & Data
Figures
- Figure 1
- The patient was 42 years old, female, MR showed that the facial nerve was associated with vertebral artery, but it is not clear. (yellow arrow showed vertebral artery; red arrow showed facial nerve)
- Figure 2
- Microscopic view in hemifacial spasm surgery a) A parallel vessel is found at the medial side of the facial nerve and believed to be the offending vessel. However, the scope of contact and degree of compression cannot be identified (black arrow: acoustic nerve; white arrow: medial vessel), b) Exposure remains unsatisfactory even after the flocculus is retracted.
- Figure 3
- Endoscopic view in hemifacial spasm surgery a) The root exit zone (REZ) of the facial nerve and its relationship with vessels can be visualized under endoscopy (yellow arrow: REZ of the facial nerve; white arrow: acoustic nerve; red arrow: offending vessels. b) A Teflon pledget was used on both sides of the facial nerve in a bridge-shaped form in order to separate the offending vessels, thus achieving satisfactory decompression.
Tables
Anatomical abnormalities n Abnormal fullness of the cerebellar flocculus 37 Narrow posterior fossa 9 Offending vessels in the outer peripheral portion of the facial nerve with protrusion of abnormal bone 3 Complex vascular anomalies in the dorsal indentation of the facial nerve 12 Local thickening of arachnoid adhesions 6 Several other coexisting anatomical abnormalities 3 - Table 2
The complication of endoscopic-assisted MVD and their frequencies (N=42, CN indicates cranial nerve)
Complications Transient Permanent Facial palsy 2 (4.7) 0(0) Hearing impairment 1 (2.4) 0(0) Hemorrhage 1 (2.4) 0(0) Lower CN palsy 1 (2.4) 0(0) Infection 1 (2.4) 0(0) CSF leakage 1 (2.4) 0(0) Others (dizziness, nausea, and vomiting etc) 4 (9.5) 0(0)
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