• World Neurosurg · Mar 2021

    Meta Analysis

    The epidemiology, cause, and prognosis of painful tic convulsif syndrome: an individual patient data analysis of 192 cases.

    • Zixiao Yin, Yuye Liu, Yutong Bai, Hua Zhang, Wei Yao, Feng Yu, Jianguo Zhang, Ruen Liu, and Anchao Yang.
    • Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
    • World Neurosurg. 2021 Mar 1; 147: e130-e147.

    BackgroundCharacterized by the coexistence of trigeminal neuralgia and ipsilateral hemifacial spasm (HFS), painful tic convulsif (PTC) is a rare entity that has not yet been systematically studied.ObjectiveTo systematically explore the epidemiology, cause, prognosis, and prognosis predictors of PTC.MethodsWe searched PubMed, Web of Science, and the Cochrane Library for relevant studies published between establishment of the library and July 1, 2020. Information on demographics, causes, specific interventions, and intervention outcomes was extracted. We first performed descriptive analysis of demographics, causes, and surgical outcomes of PTC. Univariate and multivariate regression methods were used to explore potential prognosis predictors. Further, a 2-step meta-analysis method was used to validate the identified factors.ResultsOverall, 57 reports including 192 cases with PTC were included in the analysis. The median age of patients with PTC is 54 years (range, 44-62 years), with more patients being female (P < 0.001), initiated as HFS (P = 0.005), and being affected with left side (P = 0.045). The vertebrobasilar artery contributes to >65% of the causes of single vascular compression for PTC. Anterior inferior cerebellar artery/posterior inferior cerebellar artery involvement (odds ratio, 4.050; 95% confidence interval, 1.091-15.031) and older age (P = 0.008) predict freedom from symptoms and recurrence after microvascular decompression, respectively.ConclusionsPTC occurs more in middle-aged women between 40 and 60 years old, initiates as HFS, and affects the left side. Vertebrobasilar artery compression is the most common single cause of PTC. Microvascular decompression effectively treated PTC, with a cure rate >80%. Anterior inferior cerebellar artery/posterior inferior cerebellar artery involvement predicts successful surgery and older age predicts recurrence.Copyright © 2020 Elsevier Inc. All rights reserved.

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