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Otoacoustic Emissions: Clinical Applications, Second Edition

Otoacoustic Emissions: Clinical Applications, Second Edition

RATING: (4 of 5 ears)
EDITORS: Martin S. Robinette and Theodore J. Glattke
PUBLISHER: Thieme
ISBN: 0-86577-973-2 (the Americas)
3-13-103712-1 (rest of the world)
COST: $79.00 (hardcover)

REVIEWER: Carmen C. Brewer, Ph.D., Director, Hearing and Speech Center, Washington Hospital Center, Washington DC

SYNOPSIS: Otoacoustic Emissions: Clinical Applications, is a second edition of a successful book originally published in 1997. Similar in organization to the first edition, it is divided into four sections: Perspective, Populations with Normal Hearing Sensitivity, Clinical Populations and Calibration Issues. This comprehensive textbook spans a wide variety of issues ranging from cutting edge research and theory to practical issues related to the use of otoacoustic emissions in a clinical setting. Edited by Martin Robinette and Ted Glattke, this book is an ambitious effort to ensure that the reader is familiarized with up-to-date information in this rapidly evolving area.

REVIEW: The first section, Perspective, is comprised of two chapters. The first is an entirely rewritten, provocative chapter by David Kemp in which he highlights unanswered questions about OAEs, leading to a vision for future laboratory research and clinical applications. Read this one twice! In the second chapter, Allen Ryan brings clarity to the complicated and evolving story of cochlear physiology that forms a basis for our understanding of OAEs.

The section on Populations with Normal Hearing includes updates on first edition chapters describing spontaneous (Kathryn Bright), transient evoked (Glattke and Robinette), and distortion product otoacoustic emissions (Brenda Lonsbury-Martin and Glen Martin). Measurement systems, clear descriptions of responses and their characteristics, current developments, and case studies are included in these chapters. The fascinating topic of otoacoustic emission suppression is covered in the next two chapters. George Tavartkiladze and colleagues provide an interesting and highly technical description of ipsilateral suppression. A new chapter on contralateral and binaural suppression of otoacoustic emissions (Velenovsky and Glattke) includes a comprehensive literature review and clear explanation of efferent innervation of the cochlear that underlies the phenomenon of suppression.

Effective clinical application of OAEs mandates an understanding of the influence of auditory system diseases and disorders on the measured response. This is the topic of the next section of the book, Clinical Populations. Bob Margolis leads off with an update on the influence of middle ear disease on OAEs. This well-organized chapter includes a lucid explanation of the forward and backward transmission through the middle ear, in addition to expected findings with a variety of middle ear diseases, including case studies. Frances Harris and Rudolf Probst focus on the association of OAEs with pure tone and speech outcomes in adults, and include a discussion of the etiologic applications. Michael Gorga, Stephen Neely and Patricia Dorn follow with an excellent chapter detailing the relationships between DPOAEs and hearing loss. Hold onto your statistical hats—before you know it you are engrossed in clinical decision theory and ROC curves—and it all makes sense!

As John Durrant and Lionel Collet point out, audiology continues to use a test battery approach, but this has expanded from multitest to multimodal. Their chapter on integration of OAEs and electrophysiologic measures begins with a flowchart of the auditory system and leads to multiple case examples illustrative of concordant and discordant findings. Further expounding on the use of OAEs in differential diagnosis, Martin Robinette, Michael Cevette and Teresa Webb present a variety of cases in which they demonstrate the clinical value of OAEs. Linda Hood adds a new topic to this section with her clearly written, enticing description of OAE suppression in clinical populations. Included as a bonus is information that allows the reader to download software from the Kresge Laboratory website for analysis of suppression data. Neonatal hearing screening is a major application of OAEs. Beth Prieve's extensive experience in this area is reflected in a balanced chapter that covers characteristics DPOAEs and TEOAEs in neonates as well as practical aspects of screening programs. Judith Widen and Gwendolyn O'Grady conclude this section with an update on the use of otoacoustic emissions in the evaluation of children. The integration of research findings, real-life clinical concerns and case examples makes this chapter a favorite.

The last section is a single chapter on calibration of otoacoustic emission probes. Calibration? Do I really need to read this? Absolutely! Jonathan Siegel provides the clinician with sufficient background and information to perform calibration of the probe microphone and stimulus signals. Thanks for reminding us of the need for rigor in our measurement systems.

CRITIQUE: Robinette and Glattke have taken a good book and made it even better. Already own the first edition? While some of the chapters contain only minor updates, there is enough new material to make this a worthwhile purchase for those who already own the first edition. Especially notable are the new chapters on suppression of otoacoustic emissions, David Kemp's perspective on future applications, and Michael Gorga and colleagues' explanation of OAEs and hearing loss. Of minor note, a number of figures in Chapter 2, as well as several tables in the book, could benefit from better legends. While there may be some redundancy, especially in the clinical applications chapters, the repetition serves to reinforce concepts imperative to clear understanding and productive use of OAEs.

The range of information from highly technical to practical, from review to cutting edge, and from laboratory to clinic, make this book one that should appeal to many levels. Are you using OAEs in your clinical practice, but never had a course on the topic? This book is for you. Are you a graduate student interested in pursuing OAEs beyond the introductory lecture or two? This book is for you.

OAEs! They did it again... and did it very well.