presbycusis


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presbycusis

 [pres″be-ku´sis]
progressive, bilaterally symmetrical perceptive hearing loss occurring with age; it usually occurs after age 50 and is caused by structural changes in the organs of hearing. Initially, changes in the inner ear, such as degeneration of hair cells and changes in the basilar membrane, lead to decreased hearing at higher tones and a decline in pitch discrimination. As hearing continues to be lost, even lower pitch tones become harder to hear.

pres·by·a·cu·sis

, presbyacusia (prez'bē-ă-kū'sis, -kū'sē-ă),
Loss of hearing associated with aging; manifest as reduced ability to perceive or discriminate sounds; the pattern and age of onset vary. See: phonemic regression.
[presby- + G. akousis, hearing]

presbycusis

Age-related hearing loss Audiology A progressive loss of hearing 2º to age-related changes in the inner or middle ear, beginning with high-frequency sounds–eg, speech, which may have a genetic predisposition, as it tends to occur in families; it occurs ±25% > age 65 to 75 yrs old, 50%  > age 75. See Hearing loss.

pres·by·cu·sis

(prez'bē-kyū'sis)
A usually gradual, frequently bilateral sensorineural or conductive hearing loss often related to the middle ear that gradually occurs in most people as they age; usually more pronounced for high-pitched sounds; the pattern and age of onset may vary.
Synonym(s): presbyacusis, presbyacusia.
[G. presbys, old man, + akousis, hearing]

pres·by·cu·sis

(prez'bē-kyū'sis)
A usually gradual, frequently bilateral sensorineural or conductive hearing loss often related to the middle ear that gradually occurs in most people as they age; usually more pronounced for high-pitched sounds.
[G. presbys, old man, + akousis, hearing]
References in periodicals archive ?
erinaceus mycelia enriched with its active compounds can promote functional recovery and enhance nerve regeneration in rats with neuropathic pain or presbycusis. Despite that more clinical research is needed to fully understand the potential applications of erinacine-enriched Hericium erinaceus mycelium, the majority of preclinical data strongly suggests that it is safe and offers much-needed neuroprotective applications.
As yet, there is no pharmacological intervention for presbycusis and the most commonly advised treatment is use of an amplification device.
Presbycusis is characterized by changes in the ear and/or hearing system due to age.
Higher serum aldosterone correlates with lower hearing thresholds: a possible protective hormone against presbycusis. Hear Res.
Aging, in the absence of age-related hearing loss (presbycusis) has been found to affect BAEP latencies.
The patient had used hearing aids for the correction of his symmetrical presbycusis. No change in tinnitus symptoms was reported after wearing the hearing aids with no acoustic CR neuromodulation for 5 months (July 2015 to November 2015).
Liu et al., "Investigation of the material basis underlying the correlation between presbycusis and kidney deficiency in Traditional Chinese Medicine via GC/MS metabolomics," Evidence-based Complementary and Alternative Medicine, vol.
Hearing loss is a common feature of many inner ear conditions, including presbycusis, sudden sensorineural hearing loss (SSNHL), genetic diseases, noise-induced hearing loss, ototoxic hearing loss, and autoimmune inner ear disease.
Those who did not consent for study and others who were diagnosed as cases of presbycusis were not included in the study.
Interactions of hearing loss and diabetes mellitus in the middle age CBA/ CaJ mouse model of presbycusis, Hear Res.
(1.) This range can narrow from as early as 18 due to presbycusis, it can also be up to and beyond 5kHz https:// www.scientificamerican.com/article/bring-science-homehigh-frequency-hearing/, http://www.dspguide.com/ ch22/1.htm
In a previous study, the configuration of the audiograms of patients with Meniere's disease showed a great variance;[sup][14] however, the hearing loss was always considered to be low-frequency dominated[sup][15] and the hearing threshold shifted to approximately 50-52 dB and became stabilized after several years of onset.[sup][15],[16] The fact that only six patients showed a downward-sloping curve in the present series may be the result of other simultaneous etiologies of sensorineural hearing loss, such as presbycusis or noise exposure.[sup][17] It is worth noting that a new diagnostic criteria for Meniere's disease came out in 2015.[sup][13] In the new criteria, the evaluation of hearing threshold at 3 kHz was removed.