Steady State Vestibular Evoked Myogenic Potentials

NCT01260077 | Completed DMC

• 1 other identifier: CEP_UNCISAL_1010/2009
• Study Type: observational
• Target: N/A
• Locations: 0 countries
• Sites: N/A

Brief Summary

Objective: At present, vestibular evoked myogenic potentials are analyzed only in the time domain. A technique to evaluate this potential in the frequency domain could provide more information, but has only been applied within the last year. Design and Study Sample: In this study we recorded vestibular evoked myogenic potential in the time domain, in 156 ears of 78 normal-hearing young adults, at frequencies of 250, 500, 1000 and 2000 Hz, with intensity of 90 dB nHL. Next, the steady state vestibular evoked myogenic potential was recorded at the same carrying frequencies, modulated at 20, 37, 40, 43, 70, 77 and 80 Hz. Results: The responses found by modulated frequency, regardless of carrier, recorded a higher presence of peaks and mean amplitudes between 20 and 70 Hz, especially at 40 Hz. Conclusions: The results show that the observation technique in the frequency domain is feasible and shows a strong association with the time domain for recording vestibular evoked myogenic potentials, at carrying frequencies of 250, 500, 1000 or 2000 Hz.

Conditions

Normal Vestibular Evoked Potentials in Frequency Domain

Outcome Measures

Primary Outcomes (1)

• A technique to evaluate vestibular evoked myogenic potential in the frequency domain

Study Arms (1)

Experimental group

The sample was composed of 78 individuals (156 ears), 40 females (80 ears) and 38 males (76 ears).

Eligibility Criteria

• Age: 18 Years - 35 Years
• Sex: all
• Age Groups: Adult (18-64)
• Sampling Method: Probability Sample

Study Population

Normal subjects.

Sponsors & Collaborators

• Universidade Estadual de Ciências da Saúde de Alagoas: lead

Related Publications (1)

• de Oliveira AC, Pereira LD, Colafemina JF, de Lemos Menezes P. Amplitude modulated vestibular evoked myogenic responses: a study of carrier and modulating frequencies. Acta Otolaryngol. 2014 Aug;134(8):796-801. doi: 10.3109/00016489.2014.909605. Epub 2014 Jun 9.

  PMID: 24909625 DERIVED

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: OTHER

Study Record Dates

• First Submitted: December 14, 2010
• First Posted: December 15, 2010
• Last Updated: December 15, 2010

Record last verified: 2009-02