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在267例尸检病例中发现椎基底动脉闭塞21例(7.9%),占脑梗塞尸检病例的40.4%。男性、60岁以上者占多数。临床特征:白天活动中发病(17例),昏迷或闭锁综合征,四肢瘫,中枢性高热,呼吸衰竭,去脑强直发作。早期脑 CT 扫描假阳性率高(11/20例)。脑干诱发电位有助于早期定位诊断,表现为双侧 IV～V 间期延长,IV 以后波形分化不清。血栓闭塞的原因:血栓形成15例,脑动脉粥样硬化3例。脑栓塞3例。梗塞灶主要波及桥脑、中脑及小脑,少数可波及枕、颞叶、丘脑或延髓。
In 267 autopsy cases, vertebrobasilar artery occlusion was found in 21 (7.9%) cases, accounting for 40.4% of cases of cerebral infarction autopsy. Men, 60 and over, are the majority. Clinical features: Incidence during daytime activity (n = 17), coma or atresia syndrome, quadriplegia, central hyperthermia, respiratory failure, and brain-tonic episodes. Early brain CT scan false positive rate (11/20 cases). Brainstem evoked potential contribute to the early diagnosis of positioning, the performance of bilateral IV ~ V interval prolongation, IV waveform differentiation is unclear. Causes of thromboembolism: Thrombosis in 15 cases, cerebral atherosclerosis in 3 cases. Cerebral embolism in 3 cases. Infarct mainly affects pons, midbrain and cerebellum, a few can be affected pillow, temporal lobe, thalamus or medulla oblongata.