CLASSIFICATION of HEARING LOSS De Wet Swanepoel & Claude Laurent
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Correlations Between Audiogram and Objective Hearing Tests in Sensorineural Hearing Loss
International Tinnitus Journal, Vol. 5, No.2, 107-112 (1999) Correlations Between Audiogram and Objective Hearing Tests in Sensorineural Hearing Loss L. Bishara,1 J. Ben-David,l L. Podoshin,1 M. Fradis,l C.B. Teszler,l H. Pratt,2 T. Shpack,3 H. Feiglin,3 H. Hafner,3 and N. Herlinger2 I Department of Otolaryngology, Head and Neck Surgery, and 3Institute of Audiology, Bnai-Zion Medical Center, and 2Evoked Potentials Laboratory, Technion, Haifa, Israel Abstract: Owing to its subjective nature, behavioral pure-tone audiometry often is an unre liable testing method in uncooperative subjects, and assessing the true hearing threshold be comes difficult. In such cases, objective tests are used for hearing-threshold determination (i.e., auditory brainstem evoked potentials [ABEP] and frequency-specific auditory evoked potentials: slow negative response at 10 msec [SN-1O]). The purpose of this study was to evaluate the correlation between pure-tone audiogram shape and the predictive accuracy of SN-IO and ABEP in normal controls and in patients suf fering from sensorineural hearing loss (SNHL). One-hundred-and-fifty subjects aged 15 to 70, some with normal hearing and the remainder with SNHL, were tested prospectively in a double-blind design. The battery of tests included pure-tone audiometry (air and bone conduction), speech reception threshold, ABEP, and SN- 10. Patients with SNHL were divided into four categories according to audiogram shape (i.e., flat, ascending, descending, and all other shapes). The results showed that ABEP predicts behavioral thresholds at 3 kHz and 4 kHz in cases of high-frequency hearing loss. -
CASE REPORT 48-Year-Old Man
THE PATIENT CASE REPORT 48-year-old man SIGNS & SYMPTOMS – Acute hearing loss, tinnitus, and fullness in the left ear Dennerd Ovando, MD; J. Walter Kutz, MD; Weber test lateralized to the – Sergio Huerta, MD right ear Department of Surgery (Drs. Ovando and Huerta) – Positive Rinne test and and Department of normal tympanometry Otolaryngology (Dr. Kutz), UT Southwestern Medical Center, Dallas; VA North Texas Health Care System, Dallas (Dr. Huerta) Sergio.Huerta@ THE CASE UTSouthwestern.edu The authors reported no A healthy 48-year-old man presented to our otolaryngology clinic with a 2-hour history of potential conflict of interest hearing loss, tinnitus, and fullness in the left ear. He denied any vertigo, nausea, vomiting, relevant to this article. otalgia, or otorrhea. He had noticed signs of a possible upper respiratory infection, including a sore throat and headache, the day before his symptoms started. His medical history was unremarkable. He denied any history of otologic surgery, trauma, or vision problems, and he was not taking any medications. The patient was afebrile on physical examination with a heart rate of 48 beats/min and blood pressure of 117/68 mm Hg. A Weber test performed using a 512-Hz tuning fork lateral- ized to the right ear. A Rinne test showed air conduction was louder than bone conduction in the affected left ear—a normal finding. Tympanometry and otoscopic examination showed the bilateral tympanic membranes were normal. THE DIAGNOSIS Pure tone audiometry showed severe sensorineural hearing loss in the left ear and a poor speech discrimination score. The Weber test confirmed the hearing loss was sensorineu- ral and not conductive, ruling out a middle ear effusion. -
Hearing Screening Training Manual REVISED 12/2018
Hearing Screening Training Manual REVISED 12/2018 Minnesota Department of Health (MDH) Community and Family Health Division Maternal and Child Health Section 1 2 For more information, contact Minnesota Department of Health Maternal Child Health Section 85 E 7th Place St. Paul, MN 55164-0882 651-201-3760 [email protected] www.health.state.mn.us Upon request, this material will be made available in an alternative format such as large print, Braille or audio recording. 3 Revisions made to this manual are based on: Guidelines for Hearing Screening After the Newborn Period to Kindergarten Age http://www.improveehdi.org/mn/library/files/afternewbornperiodguidelines.pdf American Academy of Audiology, Childhood Screening Guidelines http://www.cdc.gov/ncbddd/hearingloss/documents/AAA_Childhood%20Hearing%2 0Guidelines_2011.pdf American Academy of Pediatrics (AAP), Hearing Assessment in Children: Recommendations Beyond Neonatal Screening http://pediatrics.aappublications.org/content/124/4/1252 4 Contents Introduction .................................................................................................................... 7 Audience ..................................................................................................................... 7 Purpose ....................................................................................................................... 7 Overview of hearing and hearing loss ............................................................................ 9 Sound, hearing, and hearing -
Hearing Loss, Vertigo and Tinnitus
HEARING LOSS, VERTIGO AND TINNITUS Jonathan Lara, DO April 29, 2012 Hearing Loss Facts S Men are more likely to experience hearing loss than women. S Approximately 17 percent (36 million) of American adults report some degree of hearing loss. S About 2 to 3 out of every 1,000 children in the United States are born deaf or hard-of-hearing. S Nine out of every 10 children who are born deaf are born to parents who can hear. Hearing Loss Facts S The NIDCD estimates that approximately 15 percent (26 million) of Americans between the ages of 20 and 69 have high frequency hearing loss due to exposure to loud sounds or noise at work or in leisure activities. S Only 1 out of 5 people who could benefit from a hearing aid actually wears one. S Three out of 4 children experience ear infection (otitis media) by the time they are 3 years old. Hearing Loss Facts S There is a strong relationship between age and reported hearing loss: 18 percent of American adults 45-64 years old, 30 percent of adults 65-74 years old, and 47 percent of adults 75 years old or older have a hearing impairment. S Roughly 25 million Americans have experienced tinnitus. S Approximately 4,000 new cases of sudden deafness occur each year in the United States. Hearing Loss Facts S Approximately 615,000 individuals have been diagnosed with Ménière's disease in the United States. Another 45,500 are newly diagnosed each year. S One out of every 100,000 individuals per year develops an acoustic neurinoma (vestibular schwannoma). -
Hearing Loss
Randal W. Swenson, M.D. Joshua G. Yorgason, M.D. David K. Palmer, M.D. Wesley R. Brown, M.D. John E. Butler, M.D. Nancy J. Stevenson, PA-C Justin D. Gull, M.D. ENT SPECIALISTS Kristin G. Hoopes, PA-C www.entslc.com Hearing Loss Approximately one in ten persons in the United may result from blockage of the ear canal (wax), States has some degree of hearing loss. Hearing is from a perforation (hole) in the ear drum, or from measured in decibels (dB), and a hearing level of 0- infection or disease of any of the three middle ear 25 dB is considered normal hearing. Your level is: bones. With a conductive loss only, the patient will never go deaf, but will always be able to hear, either Right ear _______ dB Left ear _______dB with reconstructive ear surgery or by use of a properly fitted hearing aid. Some patients who are Hearing Severity / % Loss not candidates for surgery, may benefit from a new 25 dB (normal).….0% 65dB(Severe)……...60% technology, the Baha (bone-anchored hearing aid). 35 dB (mild)……..15% 75dB(Severe)……...75% When there is a problem with the inner ear or 45 dB (moderate)..30% >85dB (Profound)..>90% nerve of hearing, a sensori-neural hearing loss occurs. This is most commonly from normal aging, Normal speech discrimination is 88-100%. Yours is: is usually worse in high frequencies, and can progress to total deafness. Noise exposure is another Right ear _______ % Left ear_______% common cause of high frequency hearing loss. Patients with sensori-neural hearing loss usually complain of difficulty hearing in loud environments. -
MEDICINE TODAY Audiometry -~60
9 November 196S Schizophrenia-Freeman MEDIALSHRNAL 373 In the Salford comprehensive community mental health ser- FURTHER READING vice vulnerable cases of schizophrenia have been treated with Bennett, D. H., New Aspects of the Mental Health Services, ed. H. L. Frceman and J. Farndale, 1967. Oxford. this preparation for nearly two years and experience has been Brown, G. W., Bone, M., Dalison, B., and Wing, J. K., Schizophrenia gained in over 100 cases. This confirms results from elsewhere and Social Care, 1966. London. Br Med J: first published as 10.1136/bmj.4.5627.373 on 9 November 1968. Downloaded from Kinross-Wright, J., and Charalampous, K. D., Int. 7. Neuropsychiat., that it represents an important step forward in the community 1965, 1, 66. management of schizophrenia. The injections may be given in Psychiatric Hospital Care, ed. H. L. Freeman, 1965. London. Treatment of Mental Disorders in the Community, ed. G. R. Daniel and hospital clinics, at general practitioners' surgeries, or by nurses 1968. London. at the patients' homes. An interested family doctor can H. L. Freeman, certainly make a big contribution to the community care of his schizophrenic patients by undertaking these injections, since it is possible to do a rapid check on the mental state B.M.J. Publications at the same time, or perhaps receive a report from an The following are available from the Publishing Manager, B.M.A. accompanying relative. It may also be necessary to issue House, Tavistock Square, London W.C.1. The prices include regular prescriptions for antiparkinsonian drugs, since side- postage. effects are fairly common, at least in the early stages of the The New Gcneral Practice .. -
56-Questions for Your Audiologist
56 Tips for Home or School Questions For Your Audiologist By: Jill Grattan, Nevada Dual Sensory Impairment Project March, 2011 1. What is my child’s hearing loss in each ear? 2. What is the type of hearing loss my child has (e.g., conductive, sensorineural, mixed)? 3. What type of sounds and noises will he/she have difficulty hearing? 4. Will his/her hearing be affected by noisy environments and background noise (e.g., will he/she hear less in a class- room or restaurant)? 5. What, if any, medical condition does my child have? 6. Does my child have a progressive/degenerative condition? 6a. If yes, how rapidly should one expect changes to occur? 6b. What behaviors might I observe that indicate a change in my child’s hearing? 7. How often should my child visit an audiologist to check his/her hearing? 8. What suggestions do you have for the teacher working with my child? 9. What information should be shared with the people who interact with my child? 10. What assistive listening devices might benefit my child? 11. What adaptations do you think my child might need in the educational setting or at home? 12. What should be expected in terms of daily functioning (e.g., strain, headaches, frustration, etc.)? Screening Questions 1. What does the ‘newborn hearing screening test’ actually screen for? 1a. Can my child pass this test and still be hearing impaired? 2. Tests related to hearing and functioning of the ear: • Impedance testing - Tympanogram; Acoustic Reflex Test • Behavioral Testing - Behavioral Audiome- try; Pure-Tone Audiometry or Pure-Tone • Otoacoustic Emissions Testing (OAEs) Air Conduction Testing; Pure-Tone Bone • Auditory Brainstem Response (ABR) Conduction Testing; Visual Reinforce- • Speech Audiometry - Speech Awareness Threshold (SAT) or ment Audiometry (VRA); Conditioned Speech Detection Threshold (SDT); Speech Reception Thresh- Play Audiometry old or Speech Recognition Threshold (SRT) 3. -
Audiometric Test Procedures
Audiometric Test Procedures 101 This information is meant to help you better understand the various test procedures as well as some of the terms you might see on an audiometric report. By Larry Medwetsky individual could, in fact, exhibit nor- In the previous issue of Hearing mal hearing acuity across these three Loss Magazine, I provided an over- Anyone who has ever had their frequencies, yet, exhibit a significant view concerning hearing threshold hearing tested should know how hearing loss in the higher frequencies results as recorded on the audiogram to read the audiogram, but that’s (3000-8000 Hz). Thus, it is important and an explanation of the pure-tone easier said than done. Hopefully, to examine the SRT in the context of audiogram. In this article, I will after reading this article you will the other audiometric test findings. describe various test procedures have a greater understanding of the Speech Awareness Threshold that are typically administered in principles discussed and use your (SAT): an audiometric evaluation and what knowledge going forward—be it in Compound words are pre- information the tests provide. reviewing hearing test results you sented, the goal being to determine already have or when discussing your the softest level one can detect the Audiometric Test Procedures results at your next hearing test. presence of words. This test is often Pure-tone Audiometry: Tones of used when an individual’s hearing loss different frequencies are presented; the is so great that the person is unable goal is to find the softest sound level relatively flat hearing losses, and the to recognize/repeat the words, yet is which one can hear (threshold) the average of 500 and 1000 Hz for those aware that words have been presented. -
The Functional Hearing Inventory
THE FUNCTIONAL HEARING INVENTORY: CRITERION-RELATED VALIDITY AND INTERRATER RELIABILITY by PAMELA M. BROADSTON, B.S., M.A. A DISSERTATION IN SPECIAL EDUCATION Submitted to the Graduate Faculty of Texas Tech University in Partial Fulfillment of the Requirements for the Degree of DOCTOR OF EDUCATION Approved December, 2003 Copyright 2003, Pamela M. Broadston ACKNOWLEDGEMENTS First and foremost, I thank my Lord, Jesus Christ for opening the door that provided the opportunity for me to obtain this degree. Without His almighty love and endless grace, I would never have achieved this milestone. This milestone could also never have been achieved without the love and support of my family. I cannot proceed without first acknowledging them: to my parents who provided constant love and support throughout this entire endeavor; to my brother Bob, without his financial support I would probably still be working on my master's degrees one class at a time; to my sister, who allowed me to vent and provided sound advice during trying times; to my baby brother, Jeff, thanks for believing in me. I most gratefully thank my dissertation committee for their wisdom, support, and constructive criticism. Their dedication and skilled instruction were vital to the completion of this project. They include: Dr. Carol Layton who provided me with her expertise and guidance in diagnostics and assessment, Dr. Nora Griffm-Shirley who got me hooked on O&M, and Dr. Robert Kennedy who patiently explained and re-explained statistics, time and time again. Last but not least, I want to thank my chair. Dr. Roseanna Davidson, for providing the resources and opportunities that enhanced my doctoral studies and for her expertise and guidance into the field of deafblindness. -
Clinical Policy: Central Auditory Processing Disorder Reference Number: HNCA.CP.MP.375 Effective Date: 10/07 Coding Implications Last Review Date: 3/21 Revision Log
Clinical Policy: Central Auditory Processing Disorder Reference Number: HNCA.CP.MP.375 Effective Date: 10/07 Coding Implications Last Review Date: 3/21 Revision Log See Important Reminder at the end of this policy for important regulatory and legal information. Description Central auditory processing disorder (CAPD), also known as auditory processing disorder (APD), refers to the efficiency and effectiveness by which the central nervous system (CNS) utilizes auditory information in the perceptual processing of auditory information. The diagnosis, management, and even the existence of an auditory-specific perceptual deficit are controversial. Policy/Criteria I. It is the policy of Health Net of California that diagnostic testing and therapy for the management of central auditory processing disorder are considered investigational due to lack of scientific evidence to support the validity of any diagnostic tests and treatment. Background According to the American Speech-Language Hearing Association (ASHA), central auditory processing disorder (CAPD), also known as auditory processing disorder (APD), refers to difficulties in the perceptual processing of auditory information in the CNS as demonstrated by poor performance in one or more of the skills noted above. CAPD It is a complex and heterogeneous group of auditory-specific disorders usually associated with a range of listening and learning deficits. Children or adults suspected of CAPD may exhibit a variety of listening and related complaints such as difficulty understanding speech in noisy environments, following directions, and discriminating (or telling the difference between) similar-sounding speech sounds. The child may have difficulty with spelling, reading, and understanding information presented verbally in a classroom. Some individuals may also have behavioral, emotional or social difficulties. -
Differential Diagnosis and Treatment of Hearing Loss JON E
Differential Diagnosis and Treatment of Hearing Loss JON E. ISAACSON, M.D., and NEIL M. VORA, M.D., Milton S. Hershey Medical Center, Hershey, Pennsylvania Hearing loss is a common problem that can occur at any age and makes verbal communication difficult. The ear is divided anatomically into three sections (external, middle, and inner), and pathology contributing to hearing loss may strike one or more sections. Hearing loss can be cat- egorized as conductive, sensorineural, or both. Leading causes of conductive hearing loss include cerumen impaction, otitis media, and otosclerosis. Leading causes of sensorineural hear- ing loss include inherited disorders, noise exposure, and presbycusis. An understanding of the indications for medical management, surgical treatment, and amplification can help the family physician provide more effective care for these patients. (Am Fam Physician 2003;68:1125-32. Copyright© 2003 American Academy of Family Physicians) ore than 28 million Amer- tive, the sound will be heard best in the icans have some degree of affected ear. If the loss is sensorineural, the hearing impairment. The sound will be heard best in the normal ear. differential diagnosis of The sound remains midline in patients with hearing loss can be sim- normal hearing. Mplified by considering the three major cate- The Rinne test compares air conduction gories of loss. Conductive hearing loss occurs with bone conduction. The tuning fork is when sound conduction is impeded through struck softly and placed on the mastoid bone the external ear, the middle ear, or both. Sen- (bone conduction). When the patient no sorineural hearing loss occurs when there is a longer can hear the sound, the tuning fork is problem within the cochlea or the neural placed adjacent to the ear canal (air conduc- pathway to the auditory cortex. -
Review Perspectives on the Pure-Tone Audiogram
J Am Acad Audiol 28:655–671 (2017) Review Perspectives on the Pure-Tone Audiogram DOI: 10.3766/jaaa.16061 Frank E. Musiek* Jennifer Shinn† Gail D. Chermak‡ Doris-Eva Bamiou§ Abstract Background: The pure-tone audiogram, though fundamental to audiology, presents limitations, espe- cially in the case of central auditory involvement. Advances in auditory neuroscience underscore the considerably larger role of the central auditory nervous system (CANS) in hearing and related disorders. Given the availability of behavioral audiological tests and electrophysiological procedures that can pro- vide better insights as to the function of the various components of the auditory system, this perspective piece reviews the limitations of the pure-tone audiogram and notes some of the advantages of other tests and procedures used in tandem with the pure-tone threshold measurement. Purpose: To review and synthesize the literature regarding the utility and limitations of the pure-tone audiogram in determining dysfunction of peripheral sensory and neural systems, as well as the CANS, and to identify other tests and procedures that can supplement pure-tone thresholds and provide en- hanced diagnostic insight, especially regarding problems of the central auditory system. Research Design: A systematic review and synthesis of the literature. Data Collection and Analysis: The authors independently searched and reviewed literature (journal articles, book chapters) pertaining to the limitations of the pure-tone audiogram. Results: The pure-tone audiogram provides information as to hearing sensitivity across a selected fre- quency range. Normal or near-normal pure-tone thresholds sometimes are observed despite cochlear damage. There are a surprising number of patients with acoustic neuromas who have essentially normal pure-tone thresholds.