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作者们认为良性阵发性眩晕是后半规管终顶与内淋巴之间、因密度差异而致迷路功能紊乱的一种表现。内淋巴中的游动微粒和终顶的固定沉积是密度差异的基础。疲劳是这一眩晕的临床特征。根据疲劳试验的结果,可将这一眩晕分为疲劳型和非疲劳型两类。诱发疲劳型的原因较多,例如病毒性迷路炎、慢性化脓性中耳炎、高难度的镫骨手术和头部外伤等。在这些病人的内淋巴中,常可发现红白细胞和内皮碎屑。终顶结石症常为非疲劳型的诱因。作者们利用内装水银的半规管模型,进行模拟的疲劳实验。发现在反复的试验中,后半规管内的水银能进入椭圆囊,造成
The authors conclude that benign paroxysmal dizziness is a manifestation of dysfunction of the labyrinth due to density differences between the posterior semicircular canals and the endolymph. The motile particles in the endolymph and the terminal fixed deposition are the basis for the difference in density. Fatigue is the clinical characteristic of this dizzy. According to the results of fatigue tests, this dizziness can be divided into two types of fatigue and non-fatigue. There are many reasons for fatigue type, such as viral labyrinthitis, chronic suppurative otitis media, difficult stapes surgery and head trauma. In these patients, endolymph, often found in white blood cells and endothelial debris. Top stone disease often non-fatigue-type incentives. The authors used simulated mercury semi-regulatory tube models to simulate fatigue tests. Found in repeated tests, mercury in the posterior semicircular canal can enter the oval capsule, causing