Abstract
Objective To investigate the efficacy and prognosis of hemifacial spasm microvascular decompression. Methods The clinical data of 833 patients with hemifacial spasm treated with microvascular decompression at the Department of Neurosurgery, Cangzhou Central Hospital, Hebei Province from January 2004 to January 2012 were analyzed retrospectively. According to the recovery of the patients after surgery, they were divided into 4 groups: instantly cure, delayed cure, recurrent, and unhealed. The clinical data of 4 groups of patients were analyzed statistically. Results Of the 833 patients with hemifacial spasm underwent microvascular decompression, 472 were cured instantly, 302 were cured late; 33 had recurrence; and 26 were unhealed. The difference of the effective rate between 1 year and two years after surgery was minimal. The mean history (98.1±10.4 months) of the delayed cure group was significantly longer than the instantly cure group. There was significant difference between the two groups (P<0.05). Conclusions Microvascular decompression is an effective treatment method for hemifacial spasm. One year after microvascular decompression is the more appropriate time limit for identifying the operation effect. The longer medical history may increase the likelihood of delayed cure after procedure. Key words: Hemifacial spasm; Microvascular decompression; Treatment outcome; Delayed cure
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