Video head impulse test relevance in the early postoperative period after cochlear implantation. (2nd January 2019)

• Record Type: Journal Article
• Authors: Bittar, Roseli Saraiva Moreira; Sato, Eduardo; Ribeiro, Douglas Josimo Silva; Oiticica, Jeanne; Grasel, Signe Schuster; Mezzalira, Raquel; Tsuji, Robinson Koji; Bento, Ricardo Ferreira
• Is Part Of: Acta oto-laryngologica. Volume 139:Number 1(2019)
• Page Start: 6
• Page End: 10
• Publication Date: 2019-01-02
• Subjects: Cochlear implantation -- video head impulse test -- vertigo; Otolaryngology -- Periodicals; Ear -- Diseases -- Periodicals; Throat -- Diseases -- Periodicals; Otolaryngology -- Electronic Resources; Otorhinolaryngologic Diseases; 617.8
• DOI: 10.1080/00016489.2018.1535194
• Languages: English
• ISSNs: 0001-6489

Abstract

Abstract: Background: Cochlear implantation (CI) is the gold standard therapy for profound or severe sensorineural hearing loss. It is a safe surgical procedure but, because of the proximity of the cochlea and vestibule, postoperative vestibular disorder may occur. Our hypothesis is that the video head impulse test (vHIT) may be a good tool to achieve a topographic diagnosis of dizziness in the early postoperative period after CI. Aims/Objectives: To evaluate patients with instability, imbalance and vertigo between 7 and 14 days after CI procedure. Material and methods: A total of 31patients scheduled for unilateral CI were included in this study. vHIT for horizontal semicircular canal was performed before CI and between days 7 to 14 after the surgery. Results: Six subjects had dizziness complaints after CI: instability ( N = 2), imbalance ( N = 2) and vertigo ( N = 2). The postoperative vHIT test turned abnormal only in subjects with vertigo as compared to the preoperative vHIT test results. Conclusion and significance: vHIT is a good vestibular function test during the first 2 weeks after CI surgery when vertigo is the main complaint