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突发性耳聋(突聋)为耳科常见病,其病因和发病机理迄今仍不十分清楚。内耳迷路及脑干的血供皆来源于基底动脉系统,多数学者认为耳蜗微循环障碍是导致突发性聋的重要原因之一。经颅多普勒检查(TCD)是无痛无创性、简单易行、重复性强的物理探测和电生理探测技术,通过检测脑底动脉血流动力学变化,可较准确地判断脑缺血的范围和程度,探讨突聋的发病与椎基底动脉和小脑后下动脉血流动力学改变的关系,并能了解单支血管的血流情况,直接观察椎基底动脉是否痉挛或收缩,观察脑缺血范围和程度。对研究突发性耳聋的发病机制及提高突聋的检出率均有重要价值。
Sudden deafness (sudden deafness) is a common disease of the otology, its etiology and pathogenesis is still not very clear. Lost in the inner ear and brainstem blood supply are derived from the basilar artery system, most scholars believe that cochlear microcirculation is one of the important causes of sudden deafness. Transcranial Doppler examination (TCD) is a painless noninvasive, simple and reproducible physical and electrophysiological detection technique that can determine cerebral ischemia more accurately by detecting hemodynamic changes in the basilar artery To explore the relationship between the incidence of sudden deafness and the hemodynamics of vertebrobasilar artery and posterior inferior cerebellar artery and to understand the blood flow of the single vessel and directly observe whether the vertebrobasilar artery spasms or contracts and observe the extent and extent of the disease The extent and extent of ischemia. The study of the pathogenesis of sudden deafness and improve the detection rate of sudden deafness are of great value.