Abstract: ［Abstract］ Objective〖HTSS〗To explore the related factors of delayed cure after microvacular decompression(MVD) in patients with hemifacial spasm(HFS).
Methods〖HTSS〗Clinical data of 220 HFS patients were conducted the retrospective analysis. All patients were treated with MVD. Relevant influencing factors of delaying cure for patients after operation were analyzed.
Results〖HTSS〗After operation, 176 patients were cured immediately, while 44 patients delayed cure. After one-year follow-up visiting, healing time of 44 patients in the delayed cure group was 10 d-12 month.The analysis of the influencing factors of delayed cure after operation showed that there was no significant difference between delayed cure and gender, age and the size of the responsible artery(P＞0.05). There was no significant difference in the history, severity of symptoms and monitoring of abnormal facial muscles between two groups(P＜0.05). Logistic regression analysis showed that medical history and severity of symptoms were the influencing factors of delayed cure.
Conclusion  The medical history and severity of symptoms are the influencing factors of delayed cure. The longer medical history is, the easier delayed cure will have. The severer spasm symptoms are, the easier delayed cure will have. Delayed cure after MVD in HFS patients is more common. Analysis of the influencing factors of delayed cure after MVD can improve the clinical symptoms and prognosis of patients.

Key words: hemifacial spasm, microvacular decompression, delayed cure