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    Wyświetlanie 1-7 z 7
    Tytuł:
    Evaluation of the implant electrode inside the cochlea and damage to cochlear structures associated with implantation using cone beam computed tomography techniques (CBCT)
    Autorzy:
    Orłowski, Adam
    Lachowska, Magdalena
    Wiśniewska, Ewa
    Niemczyk, Grzegorz
    Koszel-Orłowska, Alicja
    Szopiński, Kazimierz
    Niemczyk, Kazimierz
    Powiązania:
    https://bibliotekanauki.pl/articles/1401755.pdf
    Data publikacji:
    2016
    Wydawca:
    Index Copernicus International
    Tematy:
    cochlear implant
    earing loss
    scala vestibuli
    cochleostomy
    temporal bone
    Opis:
    Objectives: The aim was to evaluate the position of the cochlear implant electrode inside the cochlea and damage to cochlear structures associated with the implantation itself using cone beam computed tomography technique (CBCT). Material and methods: Nine human cadaver temporal bones were used, five were implanted with round window approach and in other four anterior cochleostomy was used for insertion. After implantation the temporal boneswere scanned with CBCT scanner and the images were then analyzed. The degree of insertion damage was evaluated in two-tier scale, where the first degree included damage to basilar membrane, and the second degree covered damage associated with pushing up into the scala vestibuli. Results: The first degree of cochlear damage was noted in three temporal bones implanted with the round window approach and in two with cochleostomy, and the second degree of damage was noted in two and one temporal bones respectively. The analysis did not show any correlations between depth of insertion and degree and extend of damage in both analyzed groups, also no significant differences were found between the two groups. Conclusions: The good quality of the images presents CBCT as a good method for the evaluation of the cochlear implant electrode position in the inner ear structures. CBCT holds the promise for intraoperative imagining during cochlear implantation.
    Źródło:
    Polski Przegląd Otorynolaryngologiczny; 2016, 5, 1; 1-10
    2084-5308
    2300-7338
    Pojawia się w:
    Polski Przegląd Otorynolaryngologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Endolymphaticsac tumor – case report
    Autorzy:
    Kuczkowski, Jerzy
    Brzoznowski, Wojciech
    Nowicki, Tomasz
    Szade, Jolanta
    Powiązania:
    https://bibliotekanauki.pl/articles/1400038.pdf
    Data publikacji:
    2017
    Wydawca:
    Index Copernicus International
    Tematy:
    temporal bone
    tumors
    ELST
    management
    Opis:
    The aim of this paper is to present the case of a 70-year-old women with endolymphatic sac tumor and temporal bone destruction treated at Otolaryngology Department of MUG. The patient was admitted to our Department due to a 3-year history of hearing loss, dizziness and ear pain. The first diagnosis was temporal bone tumor connected with von Hippel-Lindau syndrome (VHL). The patient was surgically treated. During intraoperative examination, a neoplasm was determined. The tumor was excised via transmastoid approach with sigmoid sinus skeletonization. After treatment, her pains disappeared. Histopathological and immunohistochemical examination revealed endolymphatic sac tumor. Follow-up CT showed no tumor remission.
    Źródło:
    Polski Przegląd Otorynolaryngologiczny; 2017, 6, 1; 39-42
    2084-5308
    2300-7338
    Pojawia się w:
    Polski Przegląd Otorynolaryngologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Iatrogenic meningoencephalic herniation of the temporal bone – a case report
    Autorzy:
    Sieniawska-Buccella, Olga
    Bartoszewicz, Robert
    Paprocki, Arkadiusz
    Niemczyk, Kazimierz
    Powiązania:
    https://bibliotekanauki.pl/articles/1399739.pdf
    Data publikacji:
    2018
    Wydawca:
    Index Copernicus International
    Tematy:
    meningoencephalic herniation
    temporal bone
    cerebrospinal fluid leak
    Opis:
    This article presents a case of 42-year-old woman with the iatrogenic transtemporal meningoencephalic herniation. The patient was treated surgically because of chronic otitis media without an expected improvement. Despite new signs and symptoms that appeared after the surgery, no radiological assessment was performed and for another years a wrong treatment was conducted. The authors present diagnostic problems and surgical treatment of meningoencephalic herniation of the temporal bone.
    Źródło:
    Polski Przegląd Otorynolaryngologiczny; 2018, 7, 1; 65-69
    2084-5308
    2300-7338
    Pojawia się w:
    Polski Przegląd Otorynolaryngologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Bone conduction stimulation of the otic capsule: a finite element model of the temporal bone
    Autorzy:
    Borkowski, Paweł
    Marek, Piotr
    Niemczyk, Kazimierz
    Lachowska, Magdalena
    Kwacz, Monika
    Wysocki, Jarosław
    Powiązania:
    https://bibliotekanauki.pl/articles/306896.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    FEM
    kośc skroniowa
    ucho wewnętrzne
    bone conduction
    finite element analysis
    temporal bone
    otic capsule
    cochlea
    inner ear
    Opis:
    Bone conduction stimulation applied on the otic capsule may be used in a conductive hearing loss treatment as an alternative to the bone conduction implants in clinical practice. A finite element study was used to evaluate the force amplitude and direction needed for the stimulation. Methods: A finite element model of a female temporal bone with a precisely reconstructed cochlea was subjected to a harmonic analysis assuming two types of stimulation. At first, the displacement amplitude in the form of air conduction stimulation was applied on the stapes footplate. Then the force amplitude was applied on the otic capsule in the form of bone conduction stimulation. The two force directions were considered: 1) the primary direction, when a typical opening is performed during mastoidectomy, and was coincident with the axis of an imaginary cone, inscribed in the opening, and 2) the direction perpendicular to the stapes footplate. The force amplitude was set so that the response from the cochlea corresponded to the result of air conduction stimulation applied on the stapes footplate. Results: The amplitude and phase of vibration and the volume displacement on the round window membrane were considered as well as vibrations of the basilar membrane, spiral lamina, and promontory. Conclusions: The cochlear response was comparable for the two types of stimulation. The efficiency of bone conduction stimulation depended on the force direction. For the primary direction, the force was a few times smaller than for the direction perpendicular to the stapes footplate.
    Źródło:
    Acta of Bioengineering and Biomechanics; 2019, 21, 3; 75-86
    1509-409X
    2450-6303
    Pojawia się w:
    Acta of Bioengineering and Biomechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rare proliferative and inflammatory pathologies localized in the temporal bone – a review of the literature
    Autorzy:
    Roszkowski, Adam
    Witkowska, Alicja
    Baranek, Piotr
    Rzepakowska, Anna
    Wnuk, Emilia
    Niemczyk, Kazimierz
    Powiązania:
    https://bibliotekanauki.pl/articles/1399647.pdf
    Data publikacji:
    2019
    Wydawca:
    Index Copernicus International
    Tematy:
    fibrous dysplasia
    inflammatory pseudotumor
    osteoradionecrosis
    proliferative-inflammatory pathologies
    skull base
    temporal bone
    Opis:
    Introduction: Proliferative-inflammatory pathologies may occupy the temporal bone, resulting in: hearing loss, vestibular dysfunction, and neuropathies from cranial nerve compression. Although their occurrence is episodic, the appropriate diagnostic procedure is extremely important to achieve expected therapeutic effect. Aim: The aim of study was characterization of selected proliferative-inflammatory pathologies that may occupy the temporal bone: fibrous dysplasia, inflammatory pseudotumor, osteoradionecrosis, and presentation of diagnostic methods for the differentiation of these diseases as well as discussion on appropriate therapeutic options. Fibrous dysplasia (FD) is a slowly progressive, benign bone disorder of unknown etiology characterized by abnormal proliferation of fibrous tissue. Inflammatory pseudotumor (IPT) is a rare, non-malignant inflammatory process of unknown etiology, characterized by connective tissue proliferation and infiltration of inflammatory cells. Osteoradionecrosis of the temporal bone (TB-ORN) is a rare but potentially fatal complication of radiotherapy for head and neck cancer. Results: Due to the similarity of symptoms with typical inflammatory conditions of middle ear (pain, otorrhea, hearing loss), selected disorders may be a dilemma regarding the diagnosis and proper further treatment. The clinical examination is mandatory, however radiological imaging may demonstrate the presence of specific changes and direct the diagnosis. The computed tomography (CT) of fibrous dysplasia shows the abnormal organization of the bone structure. Magnetic resonance (MRI), as the most sensitive for inflammatory pseudotumors, visualizes inflammatory infiltration in soft tissues. The CT of temporal bone identifies the erosion in the course of osteoradionecrosis. However in all cases the final diagnosis may be establish using histopathological examination and after exclusion of the neoplastic process.
    Źródło:
    Polski Przegląd Otorynolaryngologiczny; 2019, 8, 3; 8-13
    2084-5308
    2300-7338
    Pojawia się w:
    Polski Przegląd Otorynolaryngologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A rare case of aberrant facial nerve course in the mastoid segment
    Rzadki przypadek nieprawidłowego przebiegu nerwu twarzowego w jego części sutkowej
    Autorzy:
    Rana, Amit Kumar
    Khan, Mubarak Muhamed
    Parab, Sapna Ramakrishna
    Powiązania:
    https://bibliotekanauki.pl/articles/1399004.pdf
    Data publikacji:
    2021-05-05
    Wydawca:
    Index Copernicus International
    Tematy:
    anomalous facial nerve
    cadaveric dissection
    dissection
    iatrogenic facial nerve palsy
    temporal bone
    badanie sekcyjne
    jatrogenne porażenie nerwu twarzowego
    kość skroniowa
    nietypowy przebieg nerwu twarzowego
    sekcja zwłok
    Opis:
    Facial nerve is the main motor supply to the part of facial skeleton system responsible for expressions. The reported rate of iatrogenic injury to the facial nerve in primary mastoid surgeries was 0.6% to 3.7%. Temporal bone is one of the most complex anatomical parts of human body. A variety of facial nerve courses has been described in literature. Normally, horizontal segment of the facial nerve traverses from geniculate ganglion to second genu which is usually situated medial and inferior to lateral semicircular canal. From here it passes posteriorly and laterally along the medial wall of the middle ear. Mastoid or vertical segment extends from the second genu to stylomastoid foramen deep to tympano-mastoid suture line from where the nerve exits out of the temporal bone. During our endoscopic dissection we encountered a grossly anomalous course of facial nerve in which after turning at second genu, the nerve curves posteriorly and lies in the floor of mastoid cavity and traverse’s its whole length of mastoid and instead of moving out of foramen it travels towards sinus plate and then takes another (3rd) turn to travel anteriorly towards the tip of mastoid from where it finally exits.
    Nerw twarzowy jest najważniejszym nerwem odpowiedzialnym za ruchowe zaopatrzenie mięśni mimicznych twarzy. Częstotliwość występowania jatrogennego uszkodzenia nerwu twarzowego podczas zabiegów chirurgicznych wyrostka sutkowatego wynosi od 0,6% do 3,7%. Kość skroniowa stanowi jedną z najbardziej złożonych anatomicznie części ludzkiego ciała. W literaturze opisywane są różne warianty przebiegu nerwu twarzowego. Z reguły poziomy odcinek nerwu twarzowego przebiega od zwoju kolankowego do drugiego kolanka nerwu, położonego najczęściej przyśrodkowo i ku dołowi od bocznego kanału półkolistego. Od tego miejsca nerw biegnie ku tyłowi i do boku wzdłuż przyśrodkowej ściany ucha środkowego. Część sutkowa lub pionowa nerwu twarzowego przebiega w głębi szczeliny bębenkowo-sutkowej od drugiego kolanka nerwu do otworu rylcowo-sutkowego, przez który nerw opuszcza kość skroniową. Podczas endoskopowego preparowania kości skroniowej zaobserwowano bardzo nietypowy przebieg nerwu twarzowego, który w swoim odcinku za drugim kolankiem zakrzywia się ku tyłowi, przechodzi przez całą długość wyrostka sutkowatego i zamiast przejść przez otwór rylcowo-sutkowy biegnie w kierunku ściany zatoki esowatej, a następnie wykonuje kolejny zwrot (trzeci) do przodu w kierunku szczytu wyrostka sutkowatego, gdzie w końcu opuszcza czaszkę.
    Źródło:
    Polski Przegląd Otorynolaryngologiczny; 2021, 10, 2; 30-33
    2084-5308
    2300-7338
    Pojawia się w:
    Polski Przegląd Otorynolaryngologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Efficacy of surgical treatment in patients with post-traumatic facial nerve palsy
    Autorzy:
    Marszał, Joanna
    Bartochowska, Anna
    Gawęcki, Wojciech
    Wierzbicka, Małgorzata
    Powiązania:
    https://bibliotekanauki.pl/articles/1397290.pdf
    Data publikacji:
    2021
    Wydawca:
    Index Copernicus International
    Tematy:
    craniofacial injury
    facial nerve decompression
    facial nerve palsy
    temporal bone fracture
    Opis:
    Introduction: The most common mechanism of post-traumatic facial nerve palsy are road accidents and falls. Treatment schemes as well as proper timing of surgery are still controversial. Aim: The aim of the study was the evaluation of the effects of surgical treatment in patients with post-traumatic facial nerve palsy. Treatment results were correlated with epidemiological factors, mechanism of injury, level of nerve damage, time of surgery and its extent. Material and methods: 9 patients with facial nerve palsy after head trauma were analyzed. In all patients complete paresis of the VII nerve occurred immediately after the injury. In 5 patients the nerve was damaged in the course of the longitudinal fracture of the temporal bone, in 3 as a result of its transverse fracture while in one woman there was no evident fracture line. In all cases, surgical treatment was performed between 4 days and 13 weeks after the trauma. In all cases transmastoid approach was used. Edema lesions of the nerve dominated in 6 patients, in two cases a bone fragment was noted along its course, in one person nerve was disrupted but primary reconstruction was not possible – the man was excluded from further analysis. The results of treatment were assessed by House-Brackmann (HB) scale 12 months after the procedure. Results: Very good (HBI) or good (HBII) recovery of facial nerve function was achieved in 2 and 4 out of 8 patients respectively. Surgical timing, the extent of surgery, patient’s age, mechanism of injury and level of nerve damage had no effect on the final outcome. Conclusions: The management of post-traumatic facial nerve palsy should be individual. The commonly accepted recommendation on surgical treatment is to undertake it in patients with immediate-onset and complete paralysis. Patients who, due to their severe general condition, cannot undergo early facial nerve decompression may benefit from delayed treatment for up to 3 months after the injury.
    Źródło:
    Polish Journal of Otolaryngology; 2021, 75, 4; 1-6
    0030-6657
    2300-8423
    Pojawia się w:
    Polish Journal of Otolaryngology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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