Limits...
Screening Among Workers in a Dockyard in the City of Varna.

Milkov M, Koseva M - Audiol Res (2011)

View Article: PubMed Central - PubMed

Affiliation: Prof. Paraskev Stoyanov Medical University of Varna , Bulgaria.

AUTOMATICALLY GENERATED EXCERPT
Please rate it.

Hearing reduction and hearing loss are common among the industrial workers exposed to continuous and intensive occupational noise, although they are completely preventable... Hearing protection devices are more and more widely used in modern industry, however, they are not efficient enough... Binaurial hearing impairment caused by simultaneous exposure to occupational noise and cigarette smoke is proved, too (Mohammadi, et al., )... At 61-70 dB, the number of workers examined at 500 Hz is significantly smaller than those at 4000 Hz (P<0.01) and at 2000 Hz (P<0.001)... These results suggest that the tonal threshold audiometry is more sensitive at higher frequency and should obligatorily be used in mass screening for early hearing reduction among workers occupationally exposed to noise... During this 7-year period, despite the implementation of the preventive measures, the number of the patients with acoustic nerve neuritis gradually increased... On the other hand, neither CT, nor MRI revealed any middle and inner ear pathological alterations at all... Our results are, to a certain extent, in agreement with the data reported by other authors... Some significant effects of age on the noise-induced permanent threshold shifts in workers with bilateral sensorineural hearing loss are established (Krishnamurti, )... There is a statistically significant association between hearing loss level and degree of discomfort introduced by tinnitus among the workers exposed to occupational noise (Dias, et al., )... The audiometric characteristics of the noise-induced hearing loss should obligatorily include hearing threshold shift at high frequencies, with a typical notch at 4000-6000 Hz (Sliwinska-Kowalska, et al., )... The control of the regular usage of the hearing protection devices should be more effective... We agree with other investigators (Edelson, et al., ) who argue that the effects of safety climate are mediated by perceived risk of noise exposure, perceived effects of noise and value placed on the use of hearing protection devices as well as that education level, a belief that wearing these devices is not uncomfortable, self-efficacy, and percentage of shift spent in high noise are of importance in this respect, too (Edelson, et al., )... Our initial comparative analyses convincingly demonstrate the necessity of annual screening of the patients with hearing reduction who work in a noisy medium.

No MeSH data available.


Age distribution of workers with low-frequency tinnitus in 2002 and in 2009.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC4627159&req=5

fig005: Age distribution of workers with low-frequency tinnitus in 2002 and in 2009.


Screening Among Workers in a Dockyard in the City of Varna.

Milkov M, Koseva M - Audiol Res (2011)

Age distribution of workers with low-frequency tinnitus in 2002 and in 2009.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4627159&req=5

fig005: Age distribution of workers with low-frequency tinnitus in 2002 and in 2009.

View Article: PubMed Central - PubMed

Affiliation: Prof. Paraskev Stoyanov Medical University of Varna , Bulgaria.

AUTOMATICALLY GENERATED EXCERPT
Please rate it.

Hearing reduction and hearing loss are common among the industrial workers exposed to continuous and intensive occupational noise, although they are completely preventable... Hearing protection devices are more and more widely used in modern industry, however, they are not efficient enough... Binaurial hearing impairment caused by simultaneous exposure to occupational noise and cigarette smoke is proved, too (Mohammadi, et al., )... At 61-70 dB, the number of workers examined at 500 Hz is significantly smaller than those at 4000 Hz (P<0.01) and at 2000 Hz (P<0.001)... These results suggest that the tonal threshold audiometry is more sensitive at higher frequency and should obligatorily be used in mass screening for early hearing reduction among workers occupationally exposed to noise... During this 7-year period, despite the implementation of the preventive measures, the number of the patients with acoustic nerve neuritis gradually increased... On the other hand, neither CT, nor MRI revealed any middle and inner ear pathological alterations at all... Our results are, to a certain extent, in agreement with the data reported by other authors... Some significant effects of age on the noise-induced permanent threshold shifts in workers with bilateral sensorineural hearing loss are established (Krishnamurti, )... There is a statistically significant association between hearing loss level and degree of discomfort introduced by tinnitus among the workers exposed to occupational noise (Dias, et al., )... The audiometric characteristics of the noise-induced hearing loss should obligatorily include hearing threshold shift at high frequencies, with a typical notch at 4000-6000 Hz (Sliwinska-Kowalska, et al., )... The control of the regular usage of the hearing protection devices should be more effective... We agree with other investigators (Edelson, et al., ) who argue that the effects of safety climate are mediated by perceived risk of noise exposure, perceived effects of noise and value placed on the use of hearing protection devices as well as that education level, a belief that wearing these devices is not uncomfortable, self-efficacy, and percentage of shift spent in high noise are of importance in this respect, too (Edelson, et al., )... Our initial comparative analyses convincingly demonstrate the necessity of annual screening of the patients with hearing reduction who work in a noisy medium.

No MeSH data available.