A multivariate analysis for delayed healing of facial muscle spasm after microvascular decompression

Objectives: To analyze the related factors for delayed healing of facial muscle spasm after microvascular decompression. Methods: After microvascular decompression, 116 of 425 patients with delayed healing were followed up, and their clinical data were analyzed. Results: The incidence rate of postoperative delayed healing was 27.3%, which was not correlated with gender, age or intraoperative vascular compression. However, it was correlated with disease course, severity of preoperative symptoms, arteriosclerosis and abnormal facial muscle response. The duration of delayed healing was positively correlated with preoperative disease course. Conclusions: Delayed healing is a common phenomenon after microvascular decompression for facial muscle spasm, with an elusive reason. Therefore, the treatment outcomes should be evaluated after one year of follow-up.