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目的:总结磁共振断层血管成像阴性的面肌痉挛患者的手术疗效。方法:分析19例磁共振断层血管成像阴性面肌痉挛病例的临床资料。结果:术中发现动脉压迫4例,静脉压迫10例,无血管压迫5例。行血管降压8例,血管切断6例,神经根蛛网膜松解5例。术后随访3个月~1 a,痊愈15例,症状缓解3例,无效1例。结论:磁共振断层血管成像阴性病例仍可能存在血管压迫。血管降压或神经根蛛网膜松解对磁共振断层血管成像阴性病例仍可起到较好的治疗作用。
Objective: To summarize the surgical treatment of hemifacial spasm with negative magnetic resonance angiography. Methods: The clinical data of 19 cases of negative hemifacial spasm with magnetic resonance angiography were analyzed. Results: Intraoperative arterial compression in 4 cases, venous compression in 10 cases, no vascular compression in 5 cases. 8 cases of vascular decompression, vascular closure in 6 cases, nerve root arachnoid loosening in 5 cases. All cases were followed up for 3 months to 1 year, 15 cases were cured, 3 cases were relieved and 1 case was ineffective. Conclusion: Vascular compression may still exist in negative cases of magnetic resonance tomography. Vasoconstriction or nerve root arachnoid release on magnetic resonance angiography negative cases may still play a better therapeutic effect.