Air-conducted cervical and ocular vestibular evoked miogenic potentials in patients with Susac’s syndrome
Journal Title: Polski Przegląd Otorynolaryngologiczny - Year 2018, Vol 7, Issue 2
Abstract
<b>Aim:</b> To evaluate acoustically evoked cervical and ocular vestibular miogenic potentials (AC cVEMP and oVEMP) in patients with Susac’s syndrome. We did not seek for a diagnostic replacement test in those patients, but we investigated if the combined application of AC cVEMP and oVEMPs might be helpful as an additional source of information about the disease. <br/><b>Material and methods:</b> To record VEMPs, the EMG standardization method was used to continuously monitor and minimize the variability of the recordings. The stimuli were presented unilaterally one ear at a time. The waveforms were analyzed for the response, latency and amplitude. Susac’s syndrome is a rare disease and two patients were analyzed in this study. <br/><b>Results:</b> In patient #1 stimulation resulted in responses on both sides with latencies within normal and symmetry limits for both c- and oVEMPs; however, the responses presented small amplitudes for cVEMPs. In patient #2, only cVEMPs were present. The P1 latencies were within normal values but amplitudes were low, in addition showing asymmetry between sides, with right side amplitude being smaller. <br/><b>Conclusion:</b> The information provided by the combined application of AC cVEMP and oVEMP might be useful in the diagnostics of Susac’s syndrome revealing additional information about the affected vestibular system and be of help in the treatment and rehabilitation planning.<br/><br/>
Authors and Affiliations
Magdalena Lachowska, Beata Zakrzewska-Pniewska, Monika Nojszewska, Kazimierz Niemczyk
Keywords
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- DOI 10.5604/01.3001.0012.1070
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