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Giuseppe Magliulo, MD; Donato Parrotto, MD; Giuseppe Cuiuli, MD; Francesca Romana Alla, MD; Mario Gagliardi, MD

Arch Otolaryngol Head Neck Surg. 2007;133(7):720-723.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

INTRODUCTION

Vestibular evoked myogenic potentials (VEMPs) represent a relatively recent subject of investigation in regard to diagnosing specific vestibular disorders. Numerous experimental animal models^1-3 and clinical studies^4-9 suggest that VEMPs are a vestibular-colic reflex, the afferent branch of which originates in the acoustic cells of the saccule, conducting signals through the inferior vestibular nerve. These studies have proposed hypotheses based on the possibility of VEMPs originating in the saccule but have provided no definitive proof to that effect.

In one of our more recent studies¹⁰ we described the case of a patient affected by superior vestibular schwannoma who underwent surgery using the retrosigmoid approach combined with ablation of the posterior semicircular canal that allowed postoperative VEMPs to be preserved. This was direct evidence of the saccular origin of VEMPs.

The present study describes 2 patients . . . [Full Text of this Article]

REPORT OF CASES

CASE 1

CASE 2

COMMENT

AUTHOR INFORMATION

Author Affiliations: "G. Ferreri" Department of Otorhinolaryngology, Audiology, and Phoniatrics, La Sapienza University, Rome, Italy.

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