Sacculo-collic response in otosclerosis and following successful stapes surgery.

Abstract

INTRODUCTION:

The sacculo-collic reflex is believed to be a short latency, otolith-mediated myogenic response to sound. With the application of air-conducted sound, one would expect an absent response in stapes fixation, as a fixed stapes footplate will not transmit a pressure wave to the saccule.

METHODS:

Fifty patients (70 stapes surgery ears, 26 otosclerotic ears and four normal ears) and 40 controls underwent repeated sacculo-collic tests.

RESULTS:

The results support the proposed mechanism for the sacculo-collic response. The study also suggests that, whilst stapedotomy piston prostheses are effective in the reversal of conductive hearing loss, they produce an insufficient pressure wave to elicit a myogenic response to sound.

CONCLUSION:

The sacculo-collic test could be a useful tool for screening otolith function and inferior vestibular nerve integrity, but further work is needed to determine the effect of stapes surgery on saccular function.

• Authors: E Stapleton, R Mills, J C Tham
• Journal: The Journal of laryngology and otology (J Laryngol Otol) Vol. 122 Issue 4 Pg. 347-50 (Apr 2008) ISSN: 1748-5460 [Electronic] England
• PMID: 17349100 (Publication Type: Journal Article)

Topics

• Acoustic Stimulation (methods)
• Audiometry, Evoked Response
• Humans
• Otolithic Membrane (physiopathology)
• Otosclerosis (physiopathology)
• Postoperative Period
• Reaction Time
• Reflex, Vestibulo-Ocular
• Saccule and Utricle (physiopathology)
• Stapes Surgery