Abstract
This review enumerates most of the studies on the Skull Vibration-Induced Nystagmus Test (SVINT) in the past 50 years from different research groups around the world. It is an attempt to demonstrate the evolution of this test and its increased interest around the globe. It explores clinical studies and animal studies, both permitting a better understanding of the importance of SVINT and its pathophysiology.
Highlights
In 1973, Lücke incidentally described that vibratory stimulation of the craniofacial bones induced a nystagmus caused by 100 Hz vibrations in patients with unilateral vestibular lesions (UVL) [10]
In these two Total UVL (TUVL) patients, the responses were significantly higher than in controls. They remarked that Vibration stimulation of the neck can modify the slow phase velocity of the caloric test (CaT) response in UVL [20]
It is important to highlight the article by Dumas et al, 2000 which reported the optimization of the stimulus during Skull Vibration-Induced Nystagmus Test (SVINT) and described the interest of the test in 31 total unilateral vestibular lesions (TUVL), 16 partial unilateral vestibular loss (PUVL)
Summary
The Skull Vibration Induced Nystagmus Test (SVINT) has gained attention because of its simplicity and efficiency It is currently used as a common and easy first-line or bedside examination test and has been included as part of routine vestibular clinical examinations since 1999. Skull vibration-induced nystagmus (SVIN) is the result of noninvasive 100 Hz cranial vibrations [1], which stimulate both otoliths and semicircular canals (SCC) Otolaryngologists use it to screen for vestibular asymmetry and uncover vestibular dysfunction [5,8]. Suggested in 1999 by Hamann [8] and Dumas [5,11] It was the consensus meeting of the International Society of Otoneurology (SIO) in Briançon, France, in 2006, SVINT (in French: TVO—Test de vibration osseux), which officially presented this test as an independent new vestibular test, which needed to be validated. We will go through the 50 years of research that lead to the recognition of this test used as a high-frequency vestibular Weber test in clinical practice and which has been validated in an important series of patients
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