Norré M E, Puls T
Acta Otorhinolaryngol Belg. 1981;35(2):198-206.
Nystagmus alternans is a seldom observed spontaneous nystagmus. Nevertheless, we would like to draw the attention to it and advice to be aware of its possibility when interpreting ENG recording for positional nystagmus. We draw the attention to some points eliciting suspicion. Continuous recording during several minutes, without changing any influencing factor, is required. Nystagmus alternans is certainly a central nystagmus and so it is important to differentiate it from a positional nystagmus type I. It may be congenital or a result of a lesion in brain stem or cerebellum. The exact localisation still remains an open question. Its interference with vestibular test results is discussed.
交替性眼球震颤是一种很少见的自发性眼球震颤。然而，我们想提请注意它，并建议在解释位置性眼球震颤的眼震电图记录时要意识到其可能性。我们提请注意一些引发怀疑的要点。需要在不改变任何影响因素的情况下持续记录几分钟。交替性眼球震颤肯定是一种中枢性眼球震颤，因此将其与I型位置性眼球震颤区分开来很重要。它可能是先天性的，也可能是脑干或小脑病变的结果。确切的定位仍然是一个悬而未决的问题。文中讨论了它对前庭测试结果的干扰。
