Long-term Outcomes of Microvascular Decompression in the Treatment of Hemifacial Spasm Based on Different Offending Vessels

Author:

Zhao Hua1,Tang Yinda1,Zhang Xin1,Zhu Jin1,Yuan Yan1,Zhou Ping1,Li Shiting1

Affiliation:

1. Department of Neurosurgery, Shanghai Jiaotong University School of Medicine, Xinhua Hospital, Shanghai, China

Abstract

Objective To evaluate clinical features, outcomes, and complications in patients with hemifacial spasm (HFS) after microvascular decompression (MVD) of different offending vessels. Methods Clinical data were collected from 362 patients with HFS treated with MVD between January 2013 and January 2014. Patients were divided into five groups based on the offending vessel: A (anterior inferior cerebellar artery [AICA] compression), B (posterior inferior cerebellar artery [PICA] compression), C (AICA plus PICA compression), D (vertebral artery [VA] compression), and E (VA plus small vessel compression). Results The most common offending vessel was the AICA (51.38%). The most common compression site was the root exit zone. During the follow-up period, the effective rate was 95.48% in group A, 92.15% in group B, 93.10% in group C, 90.14% in group D, and 91.45% in group E. Twenty-nine patients exhibited delayed facial palsy, the most common complication. Conclusion No statistically significant differences were found in long-term outcomes or MVD-related complications among the study groups. The type of offending vessel was not a prognostic factor for MVD in patients with HFS.

Funder

Shanghai Xinhua Hospital Foundation

Shanghai Jiao Tong University Medical and Engineering Cross Fund

Publisher

Georg Thieme Verlag KG

Subject

Neurology (clinical),Surgery

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