{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,4]],"date-time":"2025-11-04T10:16:57Z","timestamp":1762251417108,"version":"3.37.0"},"reference-count":0,"publisher":"American Academy of Audiology","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["j am acad audiol"],"published-print":{"date-parts":[[2008,3,1]]},"abstract":"<jats:p>The vestibular evoked myogenic potential (VEMP) has become a useful tool to assess the saccule and inferior vestibular nerve function. Vestibulopathies involving the saccule or inferior vestibular nerve typically result in VEMP responses that are diminished or absent on the involved\n side. Abnormally large VEMPs are rare. Large VEMPs have been associated with superior canal dehiscence, M\u00e9ni\u00e8re's disease, and labyrinthine fistula. In all of these cases, the abnormally large VEMP can be explained on the basis of labyrinthine hydromechanical changes that result\n in excessive saccular displacement in response to intense sound. In this report, a case is presented of a 74-year-old male with dorsal lateral medullary infarction (Wallenberg's syndrome) who presented with an enlarged VEMP\u2014a finding that has not been reported to date as a result of\n a brain stem lesion. Particularly perplexing, the enlarged VEMP was on the contralesional side. A proposed mechanism of contralateral vestibular nuclei disinhibition secondary to the brain stem stroke is discussed. El potencial miog\u00e9nico vestibular evocado (VEMP) se ha convertido en\n una herramienta \u00fatil para evaluar el s\u00e1culo y la funci\u00f3n del nervio vestibular inferior. Las vestibulopat\u00edas que involucran el s\u00e1culo y el nervio vestibular inferior t\u00edpicamente generan respuestas del VEMP que est\u00e1n disminuidas o ausentes en\n lado involucrado. Los VEMP anormalmente grandes son raros. Los VEMP grandes se han asociado con dehiscencia del canal superior, con enfermedad de M\u00e9ni\u00e8re y con f\u00edstula del laberinto. En todos estos casos, el VEMP anormalmente grande puede explicarse sobre la base de cambios\n hidromec\u00e1nicos del laberinto, que producen un desplazamiento excesivo del s\u00e1culo, en respuesta a un est\u00edmulo sonoro intenso. En este reporte, se presenta un caso de un hombre de 74 a\u00f1os de edad con un infarto medular dorsolateral (S\u00edndrome de Wallenberg),\n quien mostr\u00f3 un VEMP grande\u2014un hallazgo que a la fecha no ha sido reportado como resultado de una lesi\u00f3n del tallo cerebral. Sorprendentemente, el VEMP agrandado estaba en el lado contrario a la lesi\u00f3n. Se discute un mecanismo propuesto de desinhibici\u00f3n de\n los n\u00facleos vestibulares contralaterales, producto de la apoplej\u00eda en el tallo cerebral.<\/jats:p>","DOI":"10.3766\/jaaa.19.3.9","type":"journal-article","created":{"date-parts":[[2008,7,19]],"date-time":"2008-07-19T21:26:34Z","timestamp":1216502794000},"page":"246-256","source":"Crossref","is-referenced-by-count":3,"title":["Dorsolateral Medullary Infarction: A Neurogenic Cause of a Contralateral, Large-Amplitude Vestibular Evoked Myogenic Potential"],"prefix":"10.3766","volume":"19","author":[{"given":"Larry","family":"Lundy","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"David","family":"Zapala","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ketil","family":"Olsholt","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"2087","container-title":["Journal of the American Academy of Audiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.ingentaconnect.com\/content\/aaa\/jaaa\/2008\/00000019\/00000003\/art00009","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,2,6]],"date-time":"2025-02-06T07:55:17Z","timestamp":1738828517000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ingentaconnect.com\/content\/10.3766\/jaaa.19.3.9"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2008,3,1]]},"references-count":0,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2008,3,1]]}},"alternative-id":["1050-0545(20080301)19:3L.246;1-"],"URL":"https:\/\/doi.org\/10.3766\/jaaa.19.3.9","relation":{},"ISSN":["1050-0545"],"issn-type":[{"type":"print","value":"1050-0545"}],"subject":[],"published":{"date-parts":[[2008,3,1]]}}}