Chung Moonyoung, Han Inbo, Chung Sang-Sup, Huh Ryoong
Department of Neurosurgery, Incheon St. Mary's Hospital The Catholic University of Korea, #56 Dongsuro Bupyeong-Gu, Incheon 403-720, South Korea.
Department of Neurosurgery, Bundang CHA University Hospital, Seongnam, South Korea.
J Clin Neurosci. 2016 Jul;29:106-10. doi: 10.1016/j.jocn.2015.10.041. Epub 2016 Feb 18.
The side predilections of various offending arteries in hemifacial spasm (HFS) have not been well studied. The relationship between clinical and radiological features of HFS and offending arteries were investigated in the present study. A retrospective analysis of 370 patients who underwent microvascular decompression for HFS was performed. The patients were divided into four groups based on the offending arteries, namely anterior inferior cerebellar artery (AICA), posterior inferior cerebellar artery (PICA), vertebral artery, and multiple offending arteries. Affected side, age at onset, presence of hypertension, and sigmoid sinus area and dominance were compared between groups. The mean age of patients with a left HFS was significantly greater than that of patients with a right HFS (P=0.009). The AICA affected primarily the right side and PICA and multiple offending arteries the left side (P<0.001). Side of sigmoid sinus dominance was significantly different among groups (P<0.001). The offending arteries in HFS may be related to these differences. AICA was associated with right-sided symptoms, younger age at onset, and presence of left dominant sigmoid sinus, while PICA was associated with left-sided symptoms, older age at onset, and smaller right sigmoid sinus area.
半面痉挛（HFS）中各种责任动脉的侧别偏好尚未得到充分研究。本研究调查了HFS的临床和影像学特征与责任动脉之间的关系。对370例行HFS微血管减压术的患者进行回顾性分析。根据责任动脉将患者分为四组，即小脑前下动脉（AICA）、小脑后下动脉（PICA）、椎动脉和多条责任动脉。比较各组之间的患侧、发病年龄、高血压的存在情况以及乙状窦面积和优势情况。左侧HFS患者的平均年龄显著高于右侧HFS患者（P = 0.009）。AICA主要影响右侧，PICA和多条责任动脉主要影响左侧（P < 0.001）。各组之间乙状窦优势侧有显著差异（P < 0.001）。HFS中的责任动脉可能与这些差异有关。AICA与右侧症状、发病年龄较轻以及左侧优势乙状窦有关，而PICA与左侧症状、发病年龄较大以及右侧乙状窦面积较小有关。
