原发性三叉神经痛术前MRI特征与微血管减压术后短期疗效的关系
Chinese Journal of Nervous and Mental Diseases(2014)
Abstract
目的:探讨微血管减压术(microvascular decompression ,MVD)治疗原发性三叉神经痛围手术期疗效与术前MRI相关因素的关系。方法分析我院经MVD治疗的103例三叉神经痛患者的术前MRI薄层增强扫描资料与围手术期疗效的关系。MRI相关因素包括:桥小脑角(cerebellopontine angle,CPA)面积比、三叉神经根(trigeminal nerve,TGN)截面积比、TGN长度比、压迫点距离和方位、基底动脉位置、责任血管类型;手术疗效分为:疼痛消失、缓解、无效。结果单因素统计分析显示:压迫方位(P=0.017)、压迫点距离(P<0.001)、责任血管类型(P=0.016)、TGN截面积比(P<0.001)是影响MVD围手术期疗效的因素。Logistic多因素回归分析显示:责任血管类型(P=0.002), TGN截面积比(P=0.020)是MVD围手术期疗效的预测因子。结论术前MRI显示责任血管是动脉、神经根无萎缩的患者MVD后围手术期疗效更好。
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Key words
Primary trigeminal neuralgia,MRI features Short-term outcome,Nerve root atrophy,Oppression distance cerebellopontine angle area
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