中老年发作性眩晕的临床及BAEP、TCD、SPECT的研究  

Studies on the clinical features, BAEP,TCD and SPECT in the elderly patients with episodic vertigo.

作　　者：刘江[1] 朱文炳[1] 赵浦生 苏美芳[2] 李盛昌[2] 

机构地区：[1]上海医科大学中山医院神经内科,200032 [2]上海医科大学华山医院神经内科

出　　处：《中国神经精神疾病杂志》1993年第3期153-156,共4页Chinese Journal of Nervous and Mental Diseases

摘　　要：本文观察了44例中老年发作性眩晕的临床特点,分析、比较了他们和15例正常对照BAEP、TCD、脑SPECT的结果。发现A组(仅有发作性眩晕)多具有周围性眩晕的特点,而B组(以眩晕为突出表现的VBA-TIA)更具有中枢性眩晕的特点。两病例组BAEP的各项指标均延长,A组以Ⅰ-PL、Ⅰ-ⅢIPL延长为主,B组以Ⅰ-Ⅲ、Ⅲ-ⅤIPL延长为主;TCD发现两病例组VA、BA、PI-CA、PCA血流速度减低;A组以VA流速降低为甚,B组则以VA、PICA流速减低明显;脑SPECT显像显示两组在小脑、枕叶、基底节、颞枕区等区域血灌注减低。结合文献,本文讨论了中老年发作性眩晕的性质、机理。The clinical features,BAEP,TCD,SPECT in 44 aged cases with episodic vertigo were observed and compard with 15 age-matched normal controls.It was found that the clinical features of group A (episodic vertigo alone) is most likely to have the characteristics of peripheral vertigo,and that of group B (VBA-TIA group) have the characteristics of the central vertigo.The latencies of BAEPs were prolonged in both patient groups.Ⅰ-PL,Ⅰ-Ⅲ IPL in group A,and Ⅰ-Ⅲ ,Ⅲ-Ⅴ IPL in group B were prolonged significant-ly.Mean velocities of VA,VB.PICA and PCA showed by TCD also changed in both patient groups.In group A,the velocity of VA decelerated,while in group B,that of VA and PICA decelerated remarkably.Regional cerebral blood perfu-sion showed by 99m-TC-HMPAO SPECT re-dueced in cerebella and occipital lobe,basilar ganglion and occipital-temporal regions in both groups.The mechanisms of episodic vertigo in aged people were further discussed.

关 键 词：眩晕 脑干 听觉诱发电位 CT 

分 类 号：R592[医药卫生—老年医学]