9 research outputs found

    Orbital and intracranial complication following an acute rhinosinusitis; a case report

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    We report a case of a young adult patient who primarily revealed symptoms of orbitocellulitis as complication of odontogenous acute rhinosinusitis. Proper diagnostic (incl. CT of paranasal sinuses and orbit) and therapeutical measures (incl. FESS-drainage of maxillary sinus, putrid tooth extraction, antibiotics) were undertaken to manage the disease immediately after stationary admission. Two weeks after inconspicuous healing period a hemiparesis due to an intracranial empyema formation developed. The consecutive orbital and intracranial complications of an acute rhinosinusitis are rare but must be mutually excluded in a complicated rhinosinusitis even when proper surgical and medical treatment tend to efficient healing of orbital complication. The correct indication of imaging methods, the evaluation of diminutive symptoms and the role of underlying mechanisms of intracranial abscess formation is discussed. Review of literature concerning orbital and intracranial complications coincidence is stated. Unterstützt durch: Ministry of Health Czech Republic - Grant Nr.9908-

    Transoral and combined transoral-transcervical approach to the parapharyngeal space tumors

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    Vagal paragangliomas

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    Our experience in endoscopic treatment of malignant tumors in the nose and beyond

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    Ototoxicidade da cisplatina e otoproteção pelo extrato de ginkgo biloba às células ciliadas externas: estudo anatômico e eletrofisiológico Cisplatin ototoxycity and otoprotector to cilliated cells by ginkgo biloba extract: anatomic and eletrophisiologic study

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    A Cisplatina é uma potente droga antineoplásica, largamente utilizada para o tratamento do câncer, tanto em adultos quanto em crianças. Dentre seus efeitos colaterais, a ototoxicidade se apresenta como um dos mais importantes e leva à perda auditiva irreversível, bilateral, para as altas freqüências (4KHz#8KHz). Estudos têm tentado identificar drogas que, associadas à cisplatina possam atuar como otoprotetores. Sabe-se que o mecanismo da ototoxicidade pela cisplatina está relacionado a alterações nos mecanismos antioxidantes das células ciliadas, principalmente as células ciliadas externas da cóclea. OBJETIVO: Nossa proposta foi de avaliar através de emissões otoacústicas, por produtos de distorção (EOAPD) e por microscopia eletrônica de superfície (ME), a ação do extrato de ginkgo biloba (EGB 761), que tem conhecida ação antioxidante, como possível otoprotetor, utilizando como modelo experimental cobaias albinas. FORMA DE ESTUDO: Experimental. MATERIAL E MÉTODO: Observamos EOAPD presentes pré e pós tratamento no grupo EGB (100 mg/Kg/dia via oral) e 90 minutos após cisplatina (80 mg/Kg/dia via intraperitoneal) por 8 dias. RESULTADO: Houve também manutenção da arquitetura ciliar nas células ciliadas externas em todas as espiras da cóclea, enquanto que no grupo tratado somente com cisplatina (80 mg/Kg/dia via intraperitoneal) por 8 dias, houve desaparecimento das EOAPD pós tratamento, com desaparecimento dos cilios das células ciliadas externas e distorção na arquitetura dos cílios remanescentes à ME. CONCLUSÃO: Concluímos que a EGB, por sua ação antioxidante, atua como fator otoprotetor à ototoxicidade pela cisplatina, devendo ser testada tal ação na prática clínica em pacientes que utilizam a cisplatina, pois o uso do EGB está extremamente difundido no tratamento de diferentes doenças.<br>Cisplatin is an antineoplastic drug for cancer treatment in children and adults. The side effects of cisplatin ototoxycity are important with irreversible auditory and bilateral damage to high frequencies (4kHz - 8 kHz). Reports recognize some drugs that are associated with cisplatin to obtain an otoprotector effect. The ototoxycity mechanisms of cisplatin are related to injury of conduct the hair cell oxidation mechanism, with particular injury to outer hair cells. AIM: We intend to studies using otoacoustic emissions - distortion products (DPOEA) and scanning microscopy to verify the action of ginkgo biloba (GBE-761) that has well known antoxidizing characteristics, that can function like otoprotector effects. STUDY DESIGN: Experimental. MATERIAL AND METHOD: We use an experimental guinea pig model. We found DPOEA positive before and after treatment in the GBE group (100 mg/ Kg/ day - oral) and after 90 minutes cisplatin (8,0 mg/ Kg/ day - intraperitoneal - 8 consecutive days). RESULTS: The normal cilium architecture of outer hair cells was supported in all cochlear spirals and in the group treated only with cisplatin (8,0 mg/ Kg/ day - intraperitoneal - 8 consecutive days), the DPOEA was not present and strong injury to cilium of outer hair cells showed cilium disorders upon scanning microscopy. CONCLUSION: We conclude that GBE has a potential otoprotector effect against cisplatin ototoxycity and could be used in clinical trials
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