[Permanent drainage of the tympanic cavity through the tympanic membrane].
D004322:Drainage / Q000295:instrumentation; D004432:Ear, Middle / Q000601:surgery*; D006801:Humans; D011677:Punctures; D014432:Tympanic Membrane / Q000601:surgery*
Die Dauerdrainage der Paukenhöhle durch das Trommelfell.