Change of Vestibular Function after Cochlear Implantation

Abstract

The vestibular system of patients with total deafness was examined before and after cochlear implantation. The authors have used a computer-based electronystagmography system with air caloric stimulation for 3 years. It is very useful for the examination of the operated ear. The results of 60 vestibular examinations of 64 patients are reported. Immediately after the surgery 10 patients had vertigo lasting 2–4 days. In 20 patients, the vestibular function of the operated ear was the same as preoperatively. In 14 patients, the vestibular function became worse after the cochlear implantation, in 16 patients the postoperative vestibular responsiveness became better. The preoperative labyrinthine anesthesia changed, and a normal or almost normal caloric reaction was registered in the operated ear. In 4 patients, the ear receiving the cochlear implant had a hyperreactive labyrinthine function.

Evenwicht, een belangrijk knelpunt in de motorische ontwikkeling van kinderen met een gehoorstoornis

“…Meerdere onderzoekers tonen een reëel risico aan op vestibulaire schade die varieert van 30 tot 60% (Brey et al, 1995;Vandenbroek et al, 1993;Black, 1977a;Chiong et al, 1994;Enticott et al, 2006;Filipo et al, 2006;Huygen et al, 1994;Huygen en Vandenbroek, 1995;Szirmai et al, 1999;Vibert et al, 2001). Meerdere onderzoekers tonen een reëel risico aan op vestibulaire schade die varieert van 30 tot 60% (Brey et al, 1995;Vandenbroek et al, 1993;Black, 1977a;Chiong et al, 1994;Enticott et al, 2006;Filipo et al, 2006;Huygen et al, 1994;Huygen en Vandenbroek, 1995;Szirmai et al, 1999;Vibert et al, 2001).…”