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    Wyświetlanie 1-12 z 12
    Tytuł:
    Interchangeability of three different methods of calculating Pure Tone Average in patients with vestibular schwannoma to assess the risk of surgery-related hearing loss
    Autorzy:
    Ochal-Choińska, Aleksandra
    Lachowska, Magdalena
    Kurczak, Katarzyna
    Niemczyk, Kazimierz
    Powiązania:
    https://bibliotekanauki.pl/articles/1397311.pdf
    Data publikacji:
    2020
    Wydawca:
    Index Copernicus International
    Tematy:
    acoustic neuroma
    audiometry
    hearing loss
    vestibular schwannoma
    Opis:
    Background: Patients with vestibular schwannoma (VS) most commonly present with hearing threshold reduction for high frequencies and a falling type of audiometric curve. However, it is doubtful whether all Pure Tone Averages described in the literature characterize patients with VS correctly, as the type of PTA which comprises higher frequencies may be more appropriate for hearing status assessment in those patients. Aim: The aim of this study was to analyze 3 common methods of calculating Pure Tone Averages (PTA1 – 500, 1000, 2000 and 3000 Hz; PTA2 – 500, 1000, 2000 and 4000 Hz; PTA3 – 500, 1000 and 2000 Hz) and to determine which of them is the most reliable for the assessment of VS patients. Material and Methods: The study group included 86 patients operated on due to vestibular schwannoma accessed via the middle cranial fossa. Results: Regarding the method of calculating Pure Tone Averages (PTA1, PTA2 and PTA3) identical or similar correlations were found between the preoperative values of Pure Tone Averages (PTA1, PTA2 and PTA3) and surgery-related hearing loss, as well as individual parameters of audiologic tests. Conclusions: Pure Tone Averages calculated according to 3 different methods (PTA1, PTA2, PTA3) may be used interchangeably in the assessment of hearing in VS patients.
    Źródło:
    Polish Journal of Otolaryngology; 2020, 74, 5; 11-16
    0030-6657
    2300-8423
    Pojawia się w:
    Polish Journal of Otolaryngology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Hearing damage caused by noise in classical musicians
    Autorzy:
    Zbysińska, Marta
    Lachowska, Magdalena
    Powiązania:
    https://bibliotekanauki.pl/articles/1399069.pdf
    Data publikacji:
    2020
    Wydawca:
    Index Copernicus International
    Tematy:
    classical music
    hearing loss
    hearing protectors
    musicians
    noise
    orchestra
    Opis:
    In this paper, we discuss the issue of hearing damage caused by noise in classical musicians. Long-term exposure to highintensity sounds leads to degenerative changes at the level of the cochlea and then in the higher parts of the auditory canal. This is particularly unfavorable for musicians because an efficient hearing organ is necessary for them to perform their daily work. The risk of hearing damage depends on noise parameters and intrinsic factors referred to as individual noise sensitivity. Not all musicians are exposed to sounds that exceed the acceptable level. However, most of them work at noise levels that are close to or above the acceptable safety limit, thus posing a health threat. In addition to hearing threshold elevation, tinnitus, hyperacusis, and diplacusis may result following many years of exposure to high-intensity acoustic stimuli. Although the differences between the hearing thresholds for instrumentalists and members of the unexposed population are not large, researchers emphasize the need to recognize musicians as a risk group and to apply appropriate prevention. One of the methods to prevent hearing damage is to use ear protectors, which, although effectively reduce exposure, are not widely used by instrumentalists as they impede auditory control over the sounds produced by the instrument. In addition, multifaceted prevention programs and various techniques to minimize exposure are used, such as the proper placement of loud instruments in an orchestra.
    Źródło:
    Polski Przegląd Otorynolaryngologiczny; 2020, 9, 2; 41-53
    2084-5308
    2300-7338
    Pojawia się w:
    Polski Przegląd Otorynolaryngologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Acoustic ocular vestibulat evoked miogenic ptotentials (AC-oVEMP) in assessment of vertigo
    Autorzy:
    Zwierzyńska, Klaudyna
    Lachowska, Magdalena
    Sokołowski, Jacek
    Tataj, Emanuel
    Niemczyk, Kazimierz
    Powiązania:
    https://bibliotekanauki.pl/articles/1399446.pdf
    Data publikacji:
    2019
    Wydawca:
    Index Copernicus International
    Tematy:
    Vertigo
    hearing loss
    vestibular reflex
    vestibular nerve
    Opis:
    Evaluation of acoustic vestibular evoked myogenic potentials (AC-VEMPs) is one of the tests performed to assess the function of the balance system. Evaluation of acoustic ocular vestibular evoked myogenic potentials (AC-oVEMPs) consists in the measurement of potentials evoked within oculomotor muscles, particularly the inferior oblique muscles (the most superficial muscles) with impulses being transmitted along the superior branch of the vestibular nerve from the utricular macula. Despite the fact that the measurement of oVEMPs was introduced relatively recently, it has found widespread use as a diagnostic tool in otology and neurotology. Despite the growing number of literature reports, the methodology of the test and the methods for the interpretation of its results are still subject to debate. This article is dedicated to various aspects of AC-oVEMP tests, including the methodology of the test, interpretation of its results and potential use in the diagnostics of vertigo.
    Źródło:
    Polski Przegląd Otorynolaryngologiczny; 2019, 8, 2; 7-11
    2084-5308
    2300-7338
    Pojawia się w:
    Polski Przegląd Otorynolaryngologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Risk of hearing loss in farmers resulting from work in noise in agriculture
    Autorzy:
    Olszewski, Piotr
    Lachowska, Magdalena
    Powiązania:
    https://bibliotekanauki.pl/articles/1399066.pdf
    Data publikacji:
    2020
    Wydawca:
    Index Copernicus International
    Tematy:
    agriculture
    hearing loss
    hearing thresholds
    noise
    occupational diseases
    risk factors
    Opis:
    This paper presents risk factors of noise-induced hearing loss and harmful effects of noisy work environment on farmers. Longterm exposure to high-volume sounds leads to degenerative changes of ear structures. The paper presents the consequences of exceeding legal limits on noise exposure in agriculture. The risk of occupational noise exposure and its consequences, such as high frequency hearing loss, is significant in the group of farmers, regardless of whether they work in crop, livestock or mixed production.
    Źródło:
    Polski Przegląd Otorynolaryngologiczny; 2020, 9, 2; 35-40
    2084-5308
    2300-7338
    Pojawia się w:
    Polski Przegląd Otorynolaryngologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis and interpretation of air-conducted ocular vestibular-evoked myogenic potentials (AC-oVEMP) – our experience in healthy adults
    Autorzy:
    Zwierzyńska, Klaudyna
    Lachowska, Magdalena
    Tataj, Emanuel
    Niemczyk, Kazimierz
    Powiązania:
    https://bibliotekanauki.pl/articles/1397316.pdf
    Data publikacji:
    2020
    Wydawca:
    Index Copernicus International
    Tematy:
    hearing loss
    utricle
    vertigo
    vestibular evoked miogenic potentials
    vestibular nerve
    Opis:
    Background: Ocular vestibular-evoked myogenic potential (oVEMP) is one of recently introduced tests used to assess the function of the equilibrium system. It is still under research and no consensus has been reached yet. Aim: To analyze AC-oVEMP response parameters in subjects with no history of neurological or vestibular deficits. Material and Methods: The AC-oVEMPs collected from 50 subjects (100 ears) were analyzed in this prospective study for the response presence in the time domain, the latencies and amplitudes of the waves. Results: No statistically significant differences were observed between the right and left ear considering both N1 latency, and amplitude. Significant differences were noted when comparing the groups <40 yo vs ≥40 yo (shorter latencies and higher amplitudes were observed in subjects <40). Conclusions and Significance: This thorough AC-oVEMP analysis in a group of healthy volunteers facilitated the proposal of reference ranges with a simultaneous indication of age-related differences. Shorter oVEMP latencies and higher amplitudes were observed in subjects <40 yo, while in the subjects ≥40 yo the latencies were longer and the amplitudes lower.
    Źródło:
    Polish Journal of Otolaryngology; 2020, 74, 3; 6-11
    0030-6657
    2300-8423
    Pojawia się w:
    Polish Journal of Otolaryngology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Detailed insight into transtympanic electrocochleography (TT-ECochG) and direct cochlear nerve action potential (CNAP) for intraoperative hearing monitoring in patients with vestibular schwannoma – methodology of measurements and interpretation of results
    Autorzy:
    Pobożny, Izabela
    Lachowska, Magdalena
    Bartoszewicz, Robert
    Niemczyk, Kazimierz
    Powiązania:
    https://bibliotekanauki.pl/articles/1397350.pdf
    Data publikacji:
    2020
    Wydawca:
    Index Copernicus International
    Tematy:
    acoustic neuroma
    action potential
    cochlear nerve
    evoked response
    hearing loss
    Opis:
    Background: The aim was to present the methodology and interpretation of intraoperative hearing monitoring with simultaneous Transtympanic Electrocochleography (TT-ECochG) and direct Cochlear Nerve Action Potential (CNAP) measurements during vestibular schwannoma removal. Materials and Methods: Detailed methodology of measurements and interpretation of results are presented in three exemplary patients who underwent tumor removal via middle fossa approach (MFA) with the use of intraoperative monitoring of hearing with TT-ECochG and direct CNAP performed in real time. In addition, all responses were automatically recorded and stored along with surgical information and subjected to detailed analyses and calculation after surgery. Results: The following changes in TT-ECochG and direct CNAP responses were observed: Patient #1 – TT-ECochG and CNAP responses with minor, but transient, morphology changes (hearing was preserved); Patient #2 – CNAP responses changed significantly but, temporarily, from triphasic into biphasic responses later, with marked but partially reversible desynchronization of CNAP; changes in TT-ECochG responses were also observed but, at the end, returned to baseline (surgery-related deterioration of hearing); Patient #3 – irreversible changes of TT-ECochG and direct CNAP (complete loss of hearing). Conclusions: A combination of TT-ECochG and direct CNAP allows for real-time monitoring of auditory function during vestibular schwannoma resection and surgical manipulation which contribute to the risk of hearing loss. Therefore, the surgeon can be instantly informed about changes which could increase the possibility of preserving the patient’s hearing
    Źródło:
    Polish Journal of Otolaryngology; 2020, 74, 6; 1-8
    0030-6657
    2300-8423
    Pojawia się w:
    Polish Journal of Otolaryngology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Magnetic resonance imaging of the inner ear in the diagnostics of Ménière’s disease
    Autorzy:
    Jasińska, Agnieszka
    Lachowska, Magdalena
    Wnuk, Emilia
    Niemczyk, Kazimierz
    Powiązania:
    https://bibliotekanauki.pl/articles/1397271.pdf
    Data publikacji:
    2021
    Wydawca:
    Index Copernicus International
    Tematy:
    Ménière's disease
    endolymphatic hydrops
    magnetic resonance imaging
    hearing loss
    dizziness
    vertigo
    Opis:
    Ménière’s disease is characterized by sudden episodes of vertigo accompanied by tinnitus and/or feeling of fullness in the ear as well as fluctuating sensorineural hearing loss. Despite numerous studies, the etiology of this disease remains unknown. However, the enlargement of the inner ear’s endolymphatic spaces, referred to as endolymphatic hydrops, is considered the underlying condition. Thanks to recent advances in magnetic resonance (MR) technology, it is now possible to obtain in vivo imaging of endolymphatic hydrops in patients presenting with Ménière’s disease symptoms. Visualization of the inner ear fluid compartments is achieved after gadolinium contrast is administered into the tympanic cavity or via the intravenous route. Evaluation of endolymphatic hydrops is possible as the contrast agent selectively penetrates the perilymph, and endolymph is visualized as contrast defects. The currently used radiological hydrops grading systems include qualitative, semi-quantitative, and volumetric scales. The methods are subject to ongoing modifications to increase their sensitivity and specificity. Numerous studies describe correlations between clinical symptoms and audiological and otoneurological examination results with the endolymphatic hydrops grade. MRI is also applicable in patients’ diagnostics with an incomplete or atypical course of the Ménière’s disease. In the course of the treatment, follow-up MRI scans enable assessing individual treatment modalities’ efficacy in terms of the severity of lesions and the further course of the disease within the inner ear.
    Źródło:
    Polish Journal of Otolaryngology; 2021, 75, 2; 1-8
    0030-6657
    2300-8423
    Pojawia się w:
    Polish Journal of Otolaryngology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Air-conducted cervical and ocular vestibular evoked miogenic potentials in patients with Susac’s syndrome
    Autorzy:
    Lachowska, Magdalena
    Zakrzewska-Pniewska, Beata
    Nojszewska, Monika
    Niemczyk, Kazimierz
    Powiązania:
    https://bibliotekanauki.pl/articles/1399904.pdf
    Data publikacji:
    2018
    Wydawca:
    Index Copernicus International
    Tematy:
    Susac’s syndrome
    branch retinal artery occlusion
    cochlea
    hearing loss
    microangiopathy
    vestibular nerve
    vertigo
    Opis:
    Aim: To evaluate acoustically evoked cervical and ocular vestibular miogenic potentials (AC cVEMP and oVEMP) in patients with Susac’s syndrome. We did not seek for a diagnostic replacement test in those patients, but we investigated if the combined application of AC cVEMP and oVEMPs might be helpful as an additional source of information about the disease. Material and methods: To record VEMPs, the EMG standardization method was used to continuously monitor and minimize the variability of the recordings. The stimuli were presented unilaterally one ear at a time. The waveforms were analyzed for the response, latency and amplitude. Susac’s syndrome is a rare disease and two patients were analyzed in this study. Results: In patient #1 stimulation resulted in responses on both sides with latencies within normal and symmetry limits for both c- and oVEMPs; however, the responses presented small amplitudes for cVEMPs. In patient #2, only cVEMPs were present. The P1 latencies were within normal values but amplitudes were low, in addition showing asymmetry between sides, with right side amplitude being smaller. Conclusion: The information provided by the combined application of AC cVEMP and oVEMP might be useful in the diagnostics of Susac’s syndrome revealing additional information about the affected vestibular system and be of help in the treatment and rehabilitation planning.
    Źródło:
    Polski Przegląd Otorynolaryngologiczny; 2018, 7, 2; 8-15
    2084-5308
    2300-7338
    Pojawia się w:
    Polski Przegląd Otorynolaryngologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wideband tympanometry – a new method to evaluate the middle ear
    Autorzy:
    Niemczyk, Elżbieta
    Lachowska, Magdalena
    Powiązania:
    https://bibliotekanauki.pl/articles/1401761.pdf
    Data publikacji:
    2016
    Wydawca:
    Index Copernicus International
    Tematy:
    Wideband tympanometry
    impedance audiometry
    hearing loss
    otosclerosis
    otitis media with effusion
    tympanic membrane perforation
    Opis:
    Wideband tympanometry (WBT) is a relatively new assessment method of the middle ear. Using wideband click WBT provides measurements at frequencies from 226–8000 Hz with more diagnostic information without any additional effort. The traditional impedance audiometry offers information acquired only at a single frequency (mostly 226 Hz or 1000 Hz). WBT provides both traditional tympanograms and tympanograms at multiple frequencies as well as new information that is retrieved from resonance frequency, absorbance graph, and averaged wideband tympanogram. WBT seems to be more specific and sensitive method to evaluate a conductive hearing loss than traditional impedance audiometry, and might be helpful in diagnosing such pathologies as: middle ear effusion, negative middle ear pressure, otosclerosis, ossicular discontinuity, tympanic membrane perforation, upper semicircular canal dehiscence. WBT seems to be a very promising additional diagnostic tool used for hearing screening in newborns and diagnosing minor middle ear pathologies that disturb otoacoustic emissions. WBT is considered to be a better predictor for middle ear problems in newborns and infants than 1000 Hz tympanometry. The wideband absorbance measurements can be performed at ambient as well as peak pressure. Ambient pressure absorbance measurements do not require any pressure changes in the external auditory canal, thus it seems to be a perfect method for post-surgical monitoring of middle ear condition. However, WBT has its limitations, it presents large inter-subject variability in both absorbance graphs and resonance frequency values, and therefore WTB should be more extensively studied. WBT see
    Źródło:
    Polski Przegląd Otorynolaryngologiczny; 2016, 5, 1; 65-74
    2084-5308
    2300-7338
    Pojawia się w:
    Polski Przegląd Otorynolaryngologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Tinnitus as the sole symptom of vestibular schwannoma – case report.
    Autorzy:
    Ochal-Choińska, Aleksandra
    Lachowska, Magdalena
    Zarębska- Karpieszuk, Paulina
    Powiązania:
    https://bibliotekanauki.pl/articles/1400524.pdf
    Data publikacji:
    2016
    Wydawca:
    Index Copernicus International
    Tematy:
    acoustic neuroma
    tinnitus
    hearing loss
    pure tone audiometry
    auditory evoked brainstem potentials
    vestibular evoked myogenic potentials
    Opis:
    In this paper, we present a case report of a 26-year-old patient who had been experiencing isolated unilateral tinni-tus for 2 months. Audiologic examinations, such as pure tone, speech and impedance audiometry, ABR and vestibular evoked myogenic potential (VEMP) showed no abnormalities. The videonystagmography (VNG) and computerized dynamic posturography (CDP) also showed no pathology. Magnetic Resonance Imaging (MRI) was the only test that confirmed the presence of the vestibular schwannoma in this patient. Conclusions: MRI should be considered in pa-tients suspected of having a vestibular schwannoma with unilateral tinnitus as the only symptom, despite normal au-diological test results (with no retrocochlear findings).
    Źródło:
    Polski Przegląd Otorynolaryngologiczny; 2016, 5, 2; 46-50
    2084-5308
    2300-7338
    Pojawia się w:
    Polski Przegląd Otorynolaryngologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Methodology for Skull Tap Vestibular Evoked Myogenic Potentials (Tap-cVEMP)
    Autorzy:
    Glinka, Paulina
    Lachowska, Magdalena
    Niemczyk, Kazimierz
    Powiązania:
    https://bibliotekanauki.pl/articles/1400409.pdf
    Data publikacji:
    2017
    Wydawca:
    Index Copernicus International
    Tematy:
    vestibular evoked myogenic potential
    sternocleidomastoid muscle
    neuroma of VIII nerve
    vestibular schwannoma
    cerebellopontine angle tumor
    hearing loss
    vertigo
    Opis:
    Objective: The aim of this study is to present a methodology of vestibular evoked myogenic potentials registered from sternocleidomastoid muscle (SCM) using skull tap stimulation (Tap-cVEMP) in a patient with cerebellopontine angle tumor (CPAT). Material and methods: A 23-year-old female with CPAT. The methodology of Tap-cVEMP is introduced. The results of VEMP is confronted with surgical information about the tumor. Results: The results of AC-cVEMP and Tap-cVEMP revealed the inferior vestibular nerve bundle to be affected by the tumor with intact superior bundle. Information obtained from VEMP was confirmed during surgery. Conclusion: Skull Tap Vestibular Evoked Myogenic Potentials (Tap-cVEMP) may be the useful method in the diagnostics of CPAT. AC-cVEMP and Tap-cVEMP may be helpful to evaluate the functional integrity of both vestibular nerve bundles providing the information about their involvement in the pathological process.
    Źródło:
    Polski Przegląd Otorynolaryngologiczny; 2017, 6, 3; 29-33
    2084-5308
    2300-7338
    Pojawia się w:
    Polski Przegląd Otorynolaryngologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Distortion-product otoacoustic emission phase shift test (Shift-DPOAE) – methodology of measurements and interpretation of results in example cases
    Przesunięcie w fazie otoemisji akustycznych produktów zniekształceń nieliniowych ślimaka (Shift-DPOAE) – metodologia badania i interpretacja wyników na przykładach
    Autorzy:
    Lachowska, Magdalena
    Prus-Ostaszewska, Monika
    Niemczyk, Kazimierz
    Powiązania:
    https://bibliotekanauki.pl/articles/1399172.pdf
    Data publikacji:
    2020
    Wydawca:
    Index Copernicus International
    Tematy:
    distortion-product otoacoustic emission
    hearing loss
    Meniere’s disease
    phase shift
    tinnitus
    vertigo
    choroba Meniere’a
    niedosłuch
    otoemisje akustyczne
    przesunięcie w fazie
    szum uszny
    zawroty głowy
    Opis:
    Objective: The objective of the study was to present the methodology and interpretation of the results of distortion-product otoacoustic emission phase shift (Shift-DPOAE) measurements in healthy subjects and patients with Meniere’s disease in remission or during the attack. Material and methods: Shift-DPOAE measurements were performed in two healthy subjects with no otological or neurological problems as well as in six patients diagnosed with Meniere’s disease. Results obtained from all eight subjects are presented. Detailed otoscopy, impedance audiometry, pure tone audiometry, DPOAE, and Shift-DPOAE tests were performed in all subjects. Results: Normal results of Shift-DPOAE measurements obtained from two healthy subjects as well as normal (two subjects) and abnormal (four subjects) Shift-DPOAE results obtained from patients with Meniere’s disease are presented in order to thoroughly discuss the methodology and interpretation of Shift-DPOAE measurements. Conclusions: Shift-OAE is a promising diagnostic tool with a great clinical potential for diagnostics and monitoring of Meniere’s disease in patients whose hearing has not yet been damaged. The test is completely non-invasive and can be carried out immediately after the onset of disease attack with symptoms still present at the time of the test; in addition, the procedure takes just several minutes.
    Cel: Przedstawienie metodologii badania oraz prezentacja wyników przesunięcia w fazie otoemisji akustycznych produktów zniekształceń nieliniowych ślimaka (Shift-DPOAE), wykonanego u osób zdrowych i z potwierdzoną chorobą Meniere’a w fazie remisji oraz w ostrej fazie choroby w czasie ataku. Materiał i metody: Badanie Shift-DPOAE zostało wykonane u dwóch osób z prawidłowym słuchem i bez żadnych problemów otologicznych i neurologicznych (osoby zdrowe) oraz u sześciu z klinicznie zdiagnozowaną chorobą Meniere’a. W sumie w pracy prezentowano wyniki uzyskane u ośmiu osób. U wszystkich badanych wykonano następujące badania: dokładną otoskopię, audiometrię impedancyjną, audiometrię tonalną, tradycyjne badanie DPOAE oraz Shift-DPOAE. Wyniki: Zaprezentowano i omówiono prawidłowe wyniki Shift-DPOAE uzyskane u dwóch osób zdrowych oraz wyniki prawidłowe (dwie osoby) i nieprawidłowe (cztery osoby) uzyskane u pacjentów z chorobą Meniere’a, w celu dokładnego omówienia metodologii i interpretacji badania Shift-DPOAE. Wnioski: Shift-OAE to obiecujące badanie z dużym potencjałem klinicznym w diagnostyce i monitorowaniu choroby Meniere’a u pacjentów, u których słuch nie został jeszcze uszkodzony. Jest ono całkowicie nieinwazyjne, może być przeprowadzone zaraz po ataku choroby w trakcie trwania objawów, a jego wykonanie zajmuje zaledwie klika minut.
    Źródło:
    Polski Przegląd Otorynolaryngologiczny; 2020, 9, 1; 1-5
    2084-5308
    2300-7338
    Pojawia się w:
    Polski Przegląd Otorynolaryngologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-12 z 12

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