Improved Outcome of Microvascular Decompression for Hemifacial Spasm by Intraoperative EMG Monitoring of Lateral Spread

Objective: The treatment of hemifacial spasm using microvascular decompression (MVD) is still challenging regarding postoperative outcome. A limitation of this treatment is insufficient improvement in a certain proportion of patients. Therefore, botulinum toxin has emerged as an alternative treatment option. In order to improve the outcome of the surgical procedure the effect of intraoperative EMG monitoring of lateral spread during MVD for the treatment of hemifacial spasm has been analyzed. The achieved results are summarized in a current study. Methods: In the period 1991 – 2012 a consecutive series of a tota…