Togay MÜDERRİS, Sami BERÇİN, Ergün SEVİL, Muzaffer KİRİŞ

A rare cause of conductive hearing loss: Posttraumatic external auditory canal atresia

Akkiz dış kulak yolu atrezisi enfeksiyon, travma, neoplaziler, inflamasyon ve radyoterapi gibisebeplere bağlı gelişebilen nadir bir durumdur. Posttravmatik vakalar oldukça nadirdir, yapılançalışmalarda akkiz dış kulak yolu atrezilerinin sadece %10 kadarının travma sonrası geliştiğisaptanmıştır. Dış kulak yolu atrezisi iletim tipi işitme kaybı ve persistan otore gibi şikayetlere yolaçabilir. Tercih edilmesi gereken tedavi yöntemi cerrahidir. Cerrahinin amacı atretik kısmı eksizeedip kemik kanalı genişleterek kuru ve açık bir dış kulak yolu elde edilmesidir. Bu çalışmada, 22yıl önceki travma hikayesi sonrası gelişen dış kulak yolu atrezisi ve eşlik eden timpanik membranperforasyonu olan bir hasta ve tedavisi sunulmaktadır.

Nadir görülen bir iletim tip i işitme kaybı sebebi: Posttravmatik dış kulak yolu atrezisi

Acquired external auditory canal atresia is an uncommon entity which can arise from a number ofdifferent causes including infection, trauma, neoplasia, inflammation and radiotherapy.Posttraumatic atresias are extremely rare, only 10% of atresias are attributed to trauma in most ofthe series. The presence of canal atresia causes associated morbidity, patients generally suffer fromconductive hearing loss and persistent otorrhea. Surgery is the treatment of choice forposttraumatic atresias. The aim of surgery is to produce a dry, patent ear canal by removing theatretic segment and enlarging the bony canal. In this paper, we present a case of posttraumaticexternal auditory canal atresia and accompanying tympanic membrane perforation managedsuccessfully 22 years after trauma.

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