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Dynamic Visual Acuity (DVA) – eine praxistaugliche Messmethode für den vestibulo-okulären Reflex


Vital, D; Hegemann, S; Probst, R (2010). Dynamic Visual Acuity (DVA) – eine praxistaugliche Messmethode für den vestibulo-okulären Reflex. In: 97. Frühjahresversammlung der SGORL, Zürich, Zürich, 17 June 2010 - 18 June 2010, S20-S22.

Abstract

Introduction: Aim of the study was to improve the dynamic visual acuity (DVA) test, which is used for a simple assessment of the peripheral vestibular function. Methods: A new DVA-test was designed and standardised by examining 100 otologically healthy subjects. By comparison, 43 patients with peripheral vestibular deficit were studied. All healthy subjects and patients underwent quantitative head impulse testing with scleral search coils as a reference. DVA was determined by horizontal head rotations >150°/s and >100°/s, during which a Landolt ring was presented for 100 ms. Head rotations were performed actively by the patient and passively by the examiner.
Results: In consideration of the age dependency of DVA and optimal test parameters (passive head-thrusts >150°/s), sensitivity and specificity were higher than 90%. The number of head-thrusts was limited on an average number of 40.
Discussion: The DVA-test enables the diagnosis of a peripheral vestibulopathy in a simple way and with a sensitivity and specificity of more than 90%.

Abstract

Introduction: Aim of the study was to improve the dynamic visual acuity (DVA) test, which is used for a simple assessment of the peripheral vestibular function. Methods: A new DVA-test was designed and standardised by examining 100 otologically healthy subjects. By comparison, 43 patients with peripheral vestibular deficit were studied. All healthy subjects and patients underwent quantitative head impulse testing with scleral search coils as a reference. DVA was determined by horizontal head rotations >150°/s and >100°/s, during which a Landolt ring was presented for 100 ms. Head rotations were performed actively by the patient and passively by the examiner.
Results: In consideration of the age dependency of DVA and optimal test parameters (passive head-thrusts >150°/s), sensitivity and specificity were higher than 90%. The number of head-thrusts was limited on an average number of 40.
Discussion: The DVA-test enables the diagnosis of a peripheral vestibulopathy in a simple way and with a sensitivity and specificity of more than 90%.

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Additional indexing

Item Type:Conference or Workshop Item (Lecture), not refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Clinic for Otorhinolaryngology
Dewey Decimal Classification:610 Medicine & health
Language:German
Event End Date:18 June 2010
Deposited On:17 Dec 2010 15:02
Last Modified:07 Dec 2017 04:58
Publisher:EMH Swiss Medical Publishers
Series Name:Swiss Medical Forum
Number:Sppl51
ISSN:1424-3784
Free access at:Publisher DOI. An embargo period may apply.
Official URL:http://www.medicalforum.ch/pdf/pdf_d/2010/Suppl_54.pdf

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