oreille moyenne
TRANSCRIPT
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� Rappel anatomique� Otoscopie� Différents types de chirurgie
– myringoplastie– ossiculoplastie– antro-atticotomie– cavité d'évidement
� Otospongiose
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Chirurgie de l'oreille moyenne
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Rappel anatomique
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osselets
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Cavités de l'oreille moyenne
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Situation de la chaîne ossiculaire
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Aspect chirurgical de la paroi endocrânienne après ouverture de la paroi externe
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Chaîne ossiculaire
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Caisse du tympan
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Pyramide pétreuse
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Modèle hydraulique de l'oreille moyenne
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Marteau
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Paroi interne de la caisse du tympan
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Articulation incudo stapédienne
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Superstructure de l'étrier
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Les tympans chirurgicaux:
perforations tympaniquespoches de rétraction
cholestéatome
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Rappel: otoscopie normale
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Tympan normal (patient en décubitus)
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Tympan normal (patient assis)
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Perforation subtotale
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Perforation antérieure
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Poche de rétraction postérieure
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Poche de rétraction non contrôlable
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Poche de rétraction atticale non contrôlable
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Cholestéatome avec atticotomie spontanée
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atélectasie
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Ostéome du conduit
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Voies d'abords de l'oreille moyenne
� Voie du spéculum ( ou du conduit )
� Voie endaurale ou Shambeau
� Voie postérieure
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Voie endaurale
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Voie endaurale élargie
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Voie postérieure
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Voie postérieure
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Voie postérieure
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Prélevement aponévrose temporale
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Différents types de perforation
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Perforation inférieure
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Perforation antérieure
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Perforation postéro-inférieure
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ossiculoplasties
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Différents type de lyse ossiculaire
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Transposition d'enclume
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Prothèse ossiculaire partielle PORP
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Prothèse ossiculaire totale TORP
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Ouverture des cavités postérieures:
antro-atticotomie
cavité d'évidement
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Mur du facial
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antrotomie
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TDM coupe axiale
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Antro-atticotomie(technique fermée)
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Tympanotomie postérieure
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Cavité d'évidemment(technique ouverte)