延髓背外侧综合征的临床与MRI分析

The clinical data and MRI analysis of Lateral Medullary Syndrome

目的 :探讨延髓背外侧综合征的临床与 MRI关系。方法 :统计分析 48例延髓背外侧综合征的临床资料及头部 MRI检查所见。结果 :步态共济失调 85 %,眩晕、头晕 93%,恶心、呕吐 71%,吞咽困难 6 3%,声嘶 5 1%,Horner征 71%,面部感觉障碍 86 %,半身感觉障碍 93%。 MRI结果显示 ,延髓上部损害是经典的斜带型 ,它常伴随严重的吞咽困难、声嘶和面瘫的出现 ;而下部的损害常位于延髓外侧的表面 ,表现出更为明显的眩晕、眼震和步态共济失调。结论 :延髓背外侧综合征的临床特点与 MRI的受累部位密切相关 ,充分认识这一点 ,可帮助我们尽早给予恰当诊断和治疗 ,改善预后。

Objective: To study the correlation between clinical findings and MIR resuts of lateral medullary syndrome. Methods: We analyxed 48 patients with lateral medully syndrome and correlated their clinical findings with MRI results. Results: Gait ataxia (85%), Vertigo dizziness (93%), nausea, vomiting (71%), dysphagia (63%), hoarseness (51%), Horner sign (71%) and facial (86%) and hemibody (93%) sensory changes were frequent clinical findings MRI results showed that the lesions located in rostral part of the medulla were usually diagonal bandshaped and were associated with more severe dysphagia, hoarseness and the presence of facial paresis. Whereas the caudal lesions sitrated usually in the lateral surface of the medulla, appeared more marked vertigo, nystagmus and gait ataxia. Conclusion: The clinical characters of lateral medullary syndrme correlated closely with the lesion location in MRI. This conclusion can help us make appropriate diagnosis and treatment and improve prognosis