Secondary endolymphatic hydrops after sudden deafness. (October 2013)

• Record Type: Journal Article
• Authors: Cho, Tsung-Yi; Cheng, Po-Wen; Young, Yi-Ho
• Is Part Of: Acta oto-laryngologica. Volume 133:Number 10(2013)
• Page Start: 1040
• Page End: 1046
• Publication Date: 2013-10
• Subjects: Otolaryngology -- Periodicals; Ear -- Diseases -- Periodicals; Throat -- Diseases -- Periodicals; Otolaryngology -- Electronic Resources; Otorhinolaryngologic Diseases; 617.8
• DOI: 10.3109/00016489.2013.805432
• Languages: English
• ISSNs: 0001-6489

Abstract

<abstract> <title>Abstract</title> <p> <italic>Conclusion:</italic> Patients with sudden deafness who had abnormal ocular vestibular-evoked myogenic potential (oVEMP)/cervical VEMP (cVEMP) responses but retained caloric function may subsequently develop secondary hydrops with a mean interval of 8 years. <italic>Objective:</italic> This study applied the inner ear test battery in patients who had sudden deafness previously to elucidate how secondary endolymphatic hydrops occurs years after sudden deafness. <italic>Methods:</italic> Twenty patients who had experienced recent vertiginous attacks several years after sudden deafness (group A) and 20 patients without rotational vertiginous episode for at least 5 years following sudden deafness (group B) were enrolled. All patients underwent an inner ear test battery comprising audiometry, caloric test, and oVEMP and cVEMP tests. <italic>Results:</italic> The mean interval from initial sudden deafness to vertiginous attack in group A was 8 years, with a mean hearing level of 66 ± 20 dB, which did not significantly differ from 61 ± 20 dB in group B. For the vestibular test results, the percentages of abnormal cVEMP, oVEMP, and caloric tests in group A were 65%, 70%, and 25%, respectively. Compared to the respective 70%, 60%, and 75% abnormalities in group B, only the caloric test differed significantly.</p> </abstract>