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

Full 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.

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Author information

Author/s: Stapleton, E (E); Mills, R (R); Tham, J C (JC);

Affiliation: Otolaryngology Unit, University of Edinburgh, Scotland, UK. emmastapleton(-atsign-)doctors.org.uk

Journal and publication information

Publication Type: Journal Article

Journal: The Journal of laryngology and otology (J Laryngol Otol), published in England. (Language: eng)

Reference: 2008-Apr; vol 122 (issue 4) : pp 347-50

Dates: Created 2008/04/04; Completed 2008/06/16;

PMID: 17349100, status: MEDLINE (last retrieval date: 12/26/2008)

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

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

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