[Orientational evaluation of otolith function by eye counter-rolling in patients with various kinds of vertigo].
BACKGROUND
Measurement of ocular counterrolling (OCR) is well known as a simple method to evaluate the peripheral vestibular organ, especially the otolith organ. But it has rarely been used because of the difficulty in differentiating between pathologically reduced OCR and the wide physiological variation of this parameter.


METHODS
In this study, the OCR of 55 patients with unclarified vertigo (n = 20), vestibular neuronitis (n = 15), Menière's disease (n = 10), and benign paroxysmal positional nystagmus (n = 10) were evaluated and compared to a control group (n = 30) with the intention of diagnosing peripheral vestibular dysfunction and establishing a differential diagnosis. The test sequence was carried out with Vesta goggles by Panares and included head tilts of 5 degrees, 15 degrees, and 30 degrees to the left and right.


RESULTS
The results show a significantly reduced OCR in patients suffering from peripheral vestibular disorders when compared to the control group.


CONCLUSIONS
There is no specific finding for a specific type of vestibular lesion, but otolith function is affected in several disorders as measured by ocular counterrolling.
Univ.-HNO-Klinik Mainz.
J
J
Maurer
U
U
Ecke
B
B
Laemmers
W
W
Mann
D000328:Adult; D000368:Aged; D003937:Diagnosis, Differential; D004584:Electronystagmography / Q000295:instrumentation; D004867:Equipment Design; D005260:Female; D019416:Head Movements / Q000502:physiology; D006801:Humans; D008297:Male; D008575:Meniere Disease / Q000175:diagnosis* / Q000209:etiology / Q000503:physiopathology; D008875:Middle Aged; D009949:Orientation / Q000502:physiology*; D010037:Otolithic Membrane / Q000503:physiopathology*; D012016:Reference Values; D012027:Reflex, Vestibulo-Ocular / Q000502:physiology*; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D014724:Vestibular Function Tests / Q000295:instrumentation*; D014725:Vestibular Nerve / Q000503:physiopathology
Orientierende Prüfung der Otolithenfunktion durch Augengegenrollung bei Patienten mit unterschiedlichen Schwindelformen.