A Member of the University of Maryland Medical System   |   In Partnership with the University of Maryland School of Medicine

Share

Email PageEmail Print PagePrint
Loading

Home > Medical Reference > Encyclopedia (English)

Toggle: English / Spanish

Respuesta auditiva provocada del tronco encefálico (BAER) - Overview

Nombres alternativos

Potenciales provocados auditivos; Potenciales provocados auditivos del tronco del encéfalo; Audiometría de respuesta evocada; Respuesta auditiva troncoencefálica; RAT; PEAT

Definición:

Es un examen para medir la actividad de las ondas cerebrales que ocurre en respuesta a clics (chasquidos) o ciertos tonos.

Forma en que se realiza el examen:

Usted se acuesta en una silla o una cama reclinable y permanece quieto. Se colocan electrodos sobre el cuero cabelludo y en cada lóbulo de la oreja. Los audífonos emiten un breve clic o tono. Los electrodos captan las respuestas cerebrales a estos sonidos y las registran. No se necesita estar despierto para este examen.

Preparación para el examen:

A usted se le puede solicitar lavarse el cabello la noche antes del examen.

Los niños pequeños a menudo requieren algún tipo de sedación (medicamento para relajarlos), de manera que permanezcan calmados durante el procedimiento.

Razones por las que se realiza el examen:

El examen se realiza para:

  • Ayudar a diagnosticar problemas del sistema nervioso e hipoacusia (especialmente en recién nacidos y niños)
  • Determinar qué tan bien funciona el sistema nervioso

Este examen también se puede llevar a cabo durante la cirugía para disminuir el riesgo de lesión al nervio auditivo y al cerebro.

  • Reviewed last on: 8/3/2010
  • Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington, School of Medicine; Seth Schwartz, MD, MPH, Otolaryngologist, Virginia Mason Medical Center, Seattle, Washington. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

Referencias

Brown CJ, Johnson TA. Electrophysiologic assessment of hearing. In: Cummings CW, Flint PW, Haughey BH, et al, eds. Otolaryngology: Head & Neck Surgery. 5th ed. Philadelphia, Pa: Mosby Elsevier; 2010:chap 134.

Emerson RG, Pedley TA. Clinical neurophysiology: Electroencephalography and evoked potentials. In: Bradley WG, Daroff RB, Fenichel GM, Jankovic J, eds. Neurology in Clinical Practice. 5th ed. Philadelphia, Pa: Butterworth-Heinemann; 2008:chap 35A.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
adam.com
Adam QualityA.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org). URAC's accreditation program is an independent audit to verify that A.D.A.M. follows rigorous standards of quality and accountability. A.D.A.M. is among the first to achieve this important distinction for online health information and services. Learn more about A.D.A.M.'s editorial policy, editorial process and privacy policy. A.D.A.M. is also a founding member of Hi-Ethics and subscribes to the principles of the Health on the Net Foundation (www.hon.ch).

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
adam.com
Connect with UMMC
Facebook Twitter YouTube Blog iPhone

Please rate the quality of this article.

Do you find this article to be helpful / informative?
              
Poor                                       Excellent

Do you have any brief comments on this page: (up to 255 characters)

© 2011 University of Maryland Medical Center (UMMC). All rights reserved.
UMMC is a member of the University of Maryland Medical System,
22 S. Greene Street, Baltimore, MD 21201. TDD: 1-800-735-2258 or 1.866.408.6885