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14.04.2015

Tinnitus hearing inventory, tinnitus medication reviews - Try Out

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See related patient information handout on preventing noise-induced hearing loss, written by the author of this article.
Epidemiological evaluation of hearing damage related to strongly amplified music (personal cassette players, discotheques, rock concerts): high definition audiometric survey on 1,364 subjects.
Noise-induced hearing loss in young adults: the role of personal listening devices and other sources of leisure noise. Correlation between the American Academy of Otolaryngology-Head and Neck Surgery five-minute hearing test and standard audiologic data. Noise-induced hearing loss is the second most common form of sensorineural hearing deficit, after presbycusis (age-related hearing loss).
Screening audiometry performed in the office revealed a 30-dB (mild) elevation of hearing thresholds at 4,000 Hz. An occupational hearing conservation program includes engineering and administrative controls to reduce noise exposures, employee training in the use of hearing protection and annual audiometry for all workers who are exposed to noise.Physicians providing occupational health services to a company may supervise the hearing conservation program, review abnormal audiograms and advise the program administrator. By preventing noise-induced hearing loss, patients can reduce the impact of age-related changes on their hearing.
Sixty million Americans own firearms, and many use them without adequate hearing protection.4 Other nonoccupational sources of noise include chain saws and other power tools, amplified music,5 and recreational vehicles such as snowmobiles and motorcycles.
They can also perform tests for speech discrimination and speech reception threshold.If a unilateral or asymmetric sensorineural loss, tinnitus, vertigo or other significant ear pathology is found, referral to an otolaryngologist is warranted.
Hearing aids can amplify sounds but, despite technologic advances, often cannot fully correct problems of speech discrimination.
Family physicians should educate and motivate patients of all ages to avoid potentially damaging noise, use hearing protection when necessary and seek treatment for an existing hearing deficit.


Some types of toys for children can produce sounds capable of causing permanent hearing damage.6Noise can be described in terms of intensity (perceived as loudness) and frequency (perceived as pitch). Concurrent exposure to ototoxic substances, such as solvents and heavy metals, may increase the damage potential of noise.7 Once exposure to damaging noise levels is discontinued, further significant progression of hearing loss stops. An aid should be carefully matched to the person's hearing deficit and lifestyle by a trained audiologist. Noise-induced hearing loss can be prevented by avoiding excessive noise and using hearing protection such as earplugs and earmuffs. The previous night, she had spent several hours at a rock concert without wearing hearing protection. When hearing loss is suspected, a thorough history, physical examination and audiometry should be performed.
If these examinations disclose evidence of hearing loss, referral for full audiologic evaluation is recommended. Noise can cause permanent hearing loss at chronic exposures equal to an average SPL of 85 dB(A) or higher for an eight-hour period.7 Based on the logarithmic scale, a 3-dB increase in SPL represents a doubling of the sound intensity.
Noise-induced hearing loss is a sensorineural hearing deficit that begins at the higher frequencies (3,000 to 6,000 Hz) and develops gradually as a result of chronic exposure to excessive sound levels.1 Although the loss is typically symmetric, noise from such sources as firearms or sirens may produce an asymmetric loss.
Although complete recovery from a given episode can occur, repeated episodes of such shifts occurring after noise exposures give way to permanent threshold shifts because hair cells in the cochlea are progressively lost.CASE 2A 55-year-old factory worker consulted his family physician because of ringing in his ears and depression that began soon after the onset of the tinnitus. He had seldom worn hearing protection at work, where he had to shout to communicate with co-workers. The clinician can motivate patients to maintain their hearing health and thereby reduce the risk of hearing disability as they grow older (Tables 2 and 3).


Key factors in this effort are learning to avoid excessive noise when possible and correctly using hearing protection when necessary. The patient was referred to an audiologist, who confirmed a sensorineural hearing loss that was probably caused by excessive noise exposure, with superimposed age-related changes. Hearing protectors, including earmuffs, disposable earplugs and custom-fitted earplugs, can provide 20 to 40 dB of attenuation when used correctly.
If hearing is symmetric, the patient perceives the sound in the middle of the forehead.FIGURE 4. Tinnitus is a common symptom of noise overexposure, and it further interferes with hearing acuity, sleep and concentration.
Normal hearing patients and patients with sensorineural hearing loss hear the sound longer through air than bone.
In a conductive hearing loss, bone conduction becomes equal to or greater than air conduction. An audiogram hearing threshold level above 20 dB is considered abnormal.If the loss appears to be sensorineural, etiologies other than noise should be excluded.



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  4. Nasty_Girl:
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