![]() ![]() The four surgical methods currently in use to improve hearing in patients with congenital aural atresia are (i) fenestration of the lateral semicircular canal, (ii) type III tympanoplasty, (iii) canal plasty and (iv) canal plasty with homograft tympanoplasty. Maintenance of the width of the aural canal and prevention of lateral healing of the transplanted tympanic membrane are crucial in the treatment of congenital aural atresia. The mastoid antrum approach for surgical reconstruction of congenital aural atresia is safe and reliable. Hearing improvement to over 20 dB was achieved in 45 ears (83.3%) and to over 25 dB in 25 ears (46.2%) one year later. Facial nerve abnormalities were seen in 23 ears (42.6%). The mastoid antrum was located uneventfully for all the 54 ears, all showing ossicular chain anomalies involving most frequently the malleus and the incus followed by the upper structures of the stapes. All the patients were followed-up for 18 months to assess the therapeutic effect. ![]() In 48 patients with congenital aural atresia (54 ears, including 45 ears of type II, 9 ears of type III). To assess the effect of surgical reconstruction of congenital aural atresia via the mastoid antrum approach and investigate method for preventing postoperative atresia of the reconstructed aural canal.įrom 2000 to 2008, aural canal reconstruction and tympanoplasty was performed via the mastoid antrum approach. The success of the treatment depends on meato-tympanic angle enlargement and free epidermal flap grafting. During surgery we aim at maximal broadening of the bony part of EAC. The selection of surgical access in patients with acquired atresia should comply with the etiology of the disease and the shape of EAC. Due to increasing EAC narrowing four patients underwent second surgery with another free epidermal flap grafting. In all of our patients external auditory canal widening and hearing improvement was achieved. In all cases canaloplasty with meato-tympanic angle enlargement was performed, skin defect was replaced with free epidermal flap, silicon foil with fibrinous sponge was used for coverage. Intrameatal access was performed in 5 patients, intraural access in 3 patients and retroaurical access in 2 patients. All of these patients had medial closure of EAC with thick connective tissue scar and tympanic membrane involvement. In the period of 3 years (2008-11) 10 patients (8 women and 2 men) aged 30 to 70-years-old (medium 53 years) were treated for acquired atresia. ![]() The aim of this study is clinical and epidemiological analysis and presentation of diagnostics and treatment results of patients with atresia treated in the Otolaryngology Department of Medical University of Gdansk. It is presented as a connective tissue scar in bony part of external auditory canal. With careful intraoperative dissection and regular follow-up, complications of surgery can be avoided.Īcquired post inflammatory external auditory canal atresia is a rear complication of external ear disease. Also, postoperative frequent packing and regular follow-up are mandatory to avoid restenosis and infection of the newly created canal. To optimize the surgical outcome, careful audiological and radiological evaluation of the patient should be performed preoperatively. ![]() The repair is usually done at the age of 6 years, so children with bilateral atresia may need hearing amplification in the first few weeks of life until the age at surgery. The goals of atresia surgery are to restore functional hearing, preferably without the requirement of a hearing aid, and to reconstruct a patent, infection-free external auditory canal. Congenital aural atresia is considered one of the most difficult and challenging surgeries for the otologic surgeon. This malformation may be associated with other congenital anomalies it occurs as a result of abnormal development of the first and second branchial arches and the first branchial cleft and most often occurs sporadically, although the disease may be manifested in different syndromes. Congenital aural atresia is a spectrum of ear deformities present at birth that involves some degree of failure of the development of the external auditory canal. ![]()
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