Volume 03 Issue 10-2023
128
American Journal Of Social Sciences And Humanity Research
(ISSN
–
2771-2141)
VOLUME
03
ISSUE
10
P
AGES
:
128-132
SJIF
I
MPACT
FACTOR
(2021:
5.
993
)
(2022:
6.
015
)
(2023:
7.
164
)
OCLC
–
1121105677
Publisher:
Oscar Publishing Services
Servi
ABSTRACT
currently, noise is becoming one of the most common factors that adversely affects the organ of hearing. The purpose
of this work was to assess the information content of a number of modern audiological tests in the diagnosis of
sensorineural hearing loss of noise origin. 30 patients with bilateral hearing loss were subjected to a comprehensive
audiological examination. Additionally, we inform you that we are conducting scientific research on the
implementation of an improved method of speech audiometry for the diagnostic purpose of hearing loss of noise
origin.
KEYWORDS
Hearing loss, audiometry, noise, sensorineural hearing loss, organ of hearing, speech audiometry, level of discomfort
loudness (LDL), lower limit of perceived sound frequencies (LLPSF).
Research Article
COMPREHENSIVE AUDIOLOGICAL STUDIES SENSORY NEURAL
HEARING LOSS OF NOISE GENESIS
Submission Date:
October 20, 2023,
Accepted Date:
October 25, 2023,
Published Date:
October 30, 2023
Crossref doi:
https://doi.org/10.37547/ajsshr/Volume03Issue10-19
Shamatov I.Y.
Samarkand State Medical University Samarkand, Uzbekistan
Shopulotova Z.A.
Samarkand State Medical University Samarkand, Uzbekistan
Abdukadirova N.B.
Samarkand State Medical University Samarkand, Uzbekistan
Khaetova Sh.T.
Samarkand State Medical University Samarkand, Uzbekistan
Journal
Website:
https://theusajournals.
com/index.php/ajsshr
Copyright:
Original
content from this work
may be used under the
terms of the creative
commons
attributes
4.0 licence.
Volume 03 Issue 10-2023
129
American Journal Of Social Sciences And Humanity Research
(ISSN
–
2771-2141)
VOLUME
03
ISSUE
10
P
AGES
:
128-132
SJIF
I
MPACT
FACTOR
(2021:
5.
993
)
(2022:
6.
015
)
(2023:
7.
164
)
OCLC
–
1121105677
Publisher:
Oscar Publishing Services
Servi
INTRODUCTION
Currently, noise is becoming one of the most common
factors that adversely affects the organ of hearing. In
this regard, the problem of acoustic damage to the
sound-perceiving apparatus and assessment of the
functional state are still relevant.
The purpose of this work was to assess the information
content of a number of modern audiological tests in
the diagnosis of sensorineural hearing loss of noise
origin. One of the tasks is to study the effectiveness of
our improved melody of speech audiometry in the
Uzbek language; as well as the relationship between
the prevalence and degree of changes in the nervous
and cardiovascular systems. Development of a
screening technique for identifying early forms of
sensorineural hearing loss (noise origin).
MATERIALS AND METHODS
30 patients with bilateral hearing loss were subjected
to a comprehensive audiological examination. There
were 17 male patients and 13 female patients. All those
examined, due to the specific nature of their
profession, were exposed to different spectra and
sound pressure levels of industrial noise. Anamnestic
study allowed us to exclude other causes of hearing
loss. The duration of the disease ranged from 10 to 30
years. After examining the ENT organs, we performed
tone threshold audiometry, levels of auditory
discomfort and dynamic range of the auditory field,
sensitivity to ultrasonic vibrations, the lower limit of
perceived sound frequencies and intelligibility of quiet
speech in conditions of masking speech interference.
Results. Based on the nature of the tonal hearing
threshold curves, all patients were divided into two
groups. The 1st group included patients with
discontinuous type of curves (the initial stage of
sensorineural hearing loss of noise origin). The 2nd
group included patients with a gently descending type
of curves (pronounced stage of sensorineural hearing
loss of noise origin).
The clinical and audiological characteristics of hearing
loss in these groups had a classic picture. When
studying auditory sensitivity to ultrasound with a
frequency of 80 kHz, it was found that in 19 patients,
auditory sensitivity to ultrasound was preserved. The
remaining patients did not perceive ultrasound. When
determining the level of discomfort loudness (LDL) and
the dynamic range of the auditory field, it was found
that in 19 examined LDL did not differ from the norm, a
pronounced narrowing of the auditory field was
characteristic at those frequencies at which there was
an increase in auditory thresholds, which indicates the
manifestation of the phenomenon of accelerating the
increase in volume at corresponding frequencies.
Determination of the lower limit of perceived sound
frequencies (LLPSF) showed that the perception of
Volume 03 Issue 10-2023
130
American Journal Of Social Sciences And Humanity Research
(ISSN
–
2771-2141)
VOLUME
03
ISSUE
10
P
AGES
:
128-132
SJIF
I
MPACT
FACTOR
(2021:
5.
993
)
(2022:
6.
015
)
(2023:
7.
164
)
OCLC
–
1121105677
Publisher:
Oscar Publishing Services
Servi
low-frequency sounds in the examined patients is
characterized by indicators opposite to auditory
sensitivity to ultrasound: in individuals with high
thresholds for the perception of ultrasound. LLPSF is
within normal limits. Speech intelligibility indices of
patients with a severe stage of sensorineural hearing
loss of noise origin, both in silence and especially
against the background of interfering speech
interference, are significantly higher than in patients
with sensorineural hearing loss of other etiologies.
The most pronounced differences are observed with
an equal level of useful calculation of the masking
interference signal in (14 patients) and also in cases
where the masking speech interference exceeded the
useful signal by 10 dB in (12 patients). The drop in
hearing sensitivity remained at a frequency of 4000 Hz
and depended on the duration of the disease. Patients
exposed to industrial noise for a long time had
increased
hearing
thresholds
for
tones
of
corresponding frequencies.
Based on the work carried out, it can be recommended
for these purposes to study the intelligibility of quiet
speech under conditions masking speech interference.
To identify the earliest forms of hearing impairment in
people working in conditions of intense low-frequency
noise, it is necessary to pay special attention to the
state of auditory sensitivity in the low and medium
frequencies.
CONCLUSIONS
Thus, if the hearing thresholds in these ranges are 19-
20 dB at a frequency of 4000 Hz, they do not exceed 30
dB, from (in comparison with the spectral composition
of the affecting noise) this condition can be regarded
as the initial form of hearing loss. Additionally, we
inform you that we are conducting scientific research
on the implementation of an improved method of
speech audiometry for the diagnostic purpose of
hearing loss of noise origin.
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American Journal Of Social Sciences And Humanity Research
(ISSN
–
2771-2141)
VOLUME
03
ISSUE
10
P
AGES
:
128-132
SJIF
I
MPACT
FACTOR
(2021:
5.
993
)
(2022:
6.
015
)
(2023:
7.
164
)
OCLC
–
1121105677
Publisher:
Oscar Publishing Services
Servi
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