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    Wyświetlanie 1-6 z 6
    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:
    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:
    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:
    Immunohistochemical characterization of neurons in the vestibular ganglion (Scarpa’s ganglion) of the pig
    Autorzy:
    Dudek, A.
    Sienkiewicz, W.
    Kaleczyc, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/31779.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    immunohistochemistry
    neuron
    vestibular ganglion
    pig
    Scarpa’s ganglion zob.vestibular ganglion
    nerve fibre
    Opis:
    The study was carried out on three 4-month old female pigs. All the animals were deeply anesthetized and transcardially perfused with 4% buffered paraformaldehyde (pH 7.4). Vestibular ganglia (VG) were collected and processed for double-labelling immunofluorescence method. The preparations were examined under the Zeiss LSM 710 confocal microscope equipped with adequate filter blocks. Neurons forming VG were round or oval in shape with a round nucleus in the center. The majority of them (58%) were medium (M) (31-50 μm in diameter) while 28 % and 14% were small (S) (up to 30 μm in diameter) or large (L) (above 50 μm in diameter) in size, respectively. Double-labeling immunofluorescence revealed that VG neurons stained for CGRP (approx. 81%; among them 70.5%, 26.2% and 3.3% were M, S and L in size, respectively), VACHT (57%; 63% M, 24% S, 13% L), Met-Enk (25%; 60% M, 12% S, 28% L), VIP (20%; 88% M, 6% S, L), NPY (15%; 67% M, 20% S, 13% L), GAL (15%; 74% M, 21% S, 5% L), SP (12%; 69% M, 25% S, 6% L) and NOS-positive (12%; 50% S, 50% M). The most abundant populations of intraganglionic nerve fibers were those which stained for CGRP or Met-Enk, whereas only single SP- or NOS-positive nerve terminals were observed.
    Źródło:
    Polish Journal of Veterinary Sciences; 2012, 15, 3
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    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:
    Unilateral cochleo-vestibular nerve and internal auditory canal malformations
    Autorzy:
    Kaźmierczak, Henryk
    Kaźmierczak, Wojciech
    Pawlak-Osińska, Katarzyna
    Osiński, Stanisław
    Powiązania:
    https://bibliotekanauki.pl/articles/1399734.pdf
    Data publikacji:
    2018
    Wydawca:
    Index Copernicus International
    Tematy:
    internal auditory canal malformations
    unilateral cochleo-vestibular nerve malformations
    Opis:
    A case report of unusual one-sided developmental disorders of the vestibular and cochlear nerve and the internal auditory canal and difficulty of diagnostic process.
    Źródło:
    Polski Przegląd Otorynolaryngologiczny; 2018, 7, 1; 59-64
    2084-5308
    2300-7338
    Pojawia się w:
    Polski Przegląd Otorynolaryngologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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