Steddin S, Brandt T
Neurologische Klinik, Ludwig-Maximilians-Universität München.
Nervenarzt. 1994 Aug;65(8):505-10.
Evidence is presented that all typical features of benign paroxysmal positioning vertigo can be explained by canalolithiasis rather than by cupulolithiasis. A free floating clot of "heavy" inorganic particles gravitates to the most dependent part of the canal as soon as the patient's head is moved in a way that alters the angle between the canal's plane and the gravity vector. Based on the canalolithiasis mechanism we describe how characteristics of the thus elicited nystagmus differ if the posterior, the horizontal or the anterior semicircular canal is causative.
有证据表明，良性阵发性位置性眩晕的所有典型特征都可以用管结石症来解释，而非嵴顶结石症。一旦患者头部移动，改变了半规管平面与重力矢量之间的角度，一团自由漂浮的“重”无机颗粒凝块就会下沉到半规管最靠下的部位。基于管结石症机制，我们描述了如果后半规管、水平半规管或前半规管是病因，由此引发的眼球震颤特征会有怎样的不同。
