Long-Term Retrospective Analysis of Re-do Microvascular Decompression in Patients With Hemifacial Spasm

• DOI: 10.3389/fneur.2021.687945
• Publication Date: 2021-09-04T01:54:32Z
• Authors: Jiayu Liu; Fang Li; Guangyong Wu; Bo Liu; Jingru Zhou; Cungang Fan; Feng Jiao; Dongliang Wang; Gang Wu; Haidong Song; Ruen Liu
• Keywords: Hemifacial spasm; Microvascular Decompression

Objective: To explore the clinical characteristics of patients with persistent or recurrent hemifacial spasm (HFS) and experience microvascular decompression (MVD) in treatment such to accumulate additional evidence for optimal protocols. Methods: We retrospectively analyzed data, surgical methods efficacies 176 HFS from January 2009 2018. Results: Missing compression zones was main reason symptom persistence (87.50%) recurrence (71.50%) after MVD HFS. divided area into three zones. Most cases had only root exit zone (REZ) (Zone 1) but missed ventrolateral pons-involved 2) bulbopontine sulcus-involved 3) first MVD. Too much use Teflon (12.50%), arachnoid adhesions (5.60%) granulomas (10.40%) can also cause a recurrence. The difference between preoperative postoperative Cohen scores statistically significant (p<0.05). follow-up time ranged 36 108 months (71.75 ± 22.77). Conclusions: should be performed site, which is mostly located at brainstem/facial REZ. Intraoperative exploration conducted accordance abovementioned effectively avoid missing offending vessels. Re-do effective