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Original Article

Autonomic Dysfunction on the Affected Side in Meniere's Disease

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Pages 109-117 | Received 19 Mar 1979, Published online: 08 Jul 2009
 

Abstract

For ascertaining the existence of autonomic dysfunction on the affected side as being the cause of Meniere's disease, the mecholyl tests were conducted by means of conjunctival instillation in normal subjects as well as in patients with Meniere's disease, labyrinthitis and vestibular neuritis. The rate at which significant miosis (more than 10%) appeared in the mecholyl test was 3.1% among normal subjects, whereas the rate among Meniere's disease patients on the affected side was significantly higher during the attack, quasi-attack and interval stages. The appearance rate among Meniere's disease patients on the unaffected side was not different from that in normal subjects during any of the three stages. None of the patients with labyrinthitis or vestibular neuritis showed significant miosis on the affected side alone in the mecholyl test. This indicates that abnormality of vestibular-autonomic reflex in itself does not cause a positive reaction in the mecholyl test. Hence it can be concluded that the cause of Meniere's disease is related to the existence of autonomic dysfunction on the affected side.

Zusammenfassung

Urn die Existenz einer vegetativen Dysfunktion als Ursache der Menierèschen Krankheit festzustellen. führten wir Tests mittels Bindehautinstillation von Mecholyl bei normalen sowie bei an Menièrescher Krankheit, an Labyrinthitis und an vestibulärer Neuritis leidenden Patienten durch. 1) Die Frequenz einer signifikanten Pupillener-weiterung (gröβer als 10%) war bei Normalen 3.1 %, aber signifikant höher bei den Menière Patienten an der betroffenen Körperseite im Anfalls-, Quasianfalls- und Intervallstadium. Die Häufigkeit im kontralateralen Auge der Menière Patienten war in keinem der drei Stadien anders als bei Normalen. 2) Keiner der Patienten mit Labyrinthitis oder vestibulärer Neuritis zeigte eine signifikante Miosis der involvierten Seite allein im Mecholyl Test. Das bedeutet, daβ ein abnormaler vestibular-autonomischer Retlex an sich zu keinem positiven Mecholyl Test führt. Es kann daher geschlossen werden, daβ die Ursache der Menièreschen Krankheit mit der Existenz einer vegetativen Dysfunktion der lädierten Seite im Zusammenhang steht.

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