Luftleitungsinduzierte oculäre VEMP I. Methodik und Untersuchungen bei normalen Probanden

Abstract

AC oVEMP can be easy and fast obtained. N10 and p15 latencies may used as parameter for clinical interpretation. Amplitude fluctuations are relatively large. Results can be used in further clinical investigation of AC oVEMP.

Current diagnostic procedures for diagnosing vertigo and dizziness

“…The cervical measurements (cVEMP) (about <500 µV) in air conduction reflect the dominating sacculus function or the sacculo-collic reflex. Ocular air-conduction-induced VEMP (oVEMP) (about <20 µV) are an indicator for the dominant percentage of the otolith-ocular reflex or the utricular function [ 42 ], [ 43 ], [ 44 ], [ 45 ]. The part of the reflexes for cVEMP and oVEMP stimulation was recently calculated by Govender et al [ 75 ].…”

“…In the last years, modern technical vestibular diagnostics, in particular the video head impulse test and VEMP diagnostics, led to the fact that a complex examination of the vestibular reflex structures can be realized. Those examination methods are increasingly wide-spread in Germany [ 37 ], [ 38 ], [ 39 ], [ 42 ], [ 43 ], [ 44 ], [ 45 ]. Also the application in the context of ENT-specific expert opinions is more and more established [ 56 ].…”

“…The classical oVEMP potential is also biphasic (negative potential at about 10 ms, positive potential at about 5 ms). The amplitudes are lower than for cVEMP (about <20 µV) and achieve partly the nanovolt range [ 33 ], [ 34 ], [ 42 ], [ 43 ], [ 44 ], [ 45 ]. The angle in upward direction and the horizontal gaze deflection as well as the body position influence the oVEMP results.…”

“…In the context of primary somatoform vertigo, there is no correlate for an organic disease. The secondary somatoform vertigo develops as a consequence of an organic (vestibular) disorder and affects a high percentage of patients with chronic episodic complaints [ 42 ], [ 61 ]. The early detection is the basis for an early introduction of psychotherapy and thus for therapeutic success [ 243 ].…”

“…The development of those modern diagnostic instruments led to a paradigm shift in clinical vestibular diagnostics that increasingly influences the current medical standards of the diagnosis of vertigo and balance disorders [ 37 ]. In Germany, modern methods are more and more established in the outpatient and inpatient ENT-specific sector [ 37 ], [ 38 ], [ 42 ], [ 43 ], [ 44 ], [ 45 ]. The medical benefit of modern diagnostic procedures, their quality and effectiveness are meanwhile scientifically confirmed.…”