Section: 
Science articles
Science articlesEfficiency methods of surgical correction acquired soft tissue atresia of the external auditory canal various localization
S. A. Eremin (1)
(1) Saint Petersburg Research Institute of Ear, Throat, Nose and Speech Ministry of Healthcare of Russia, Saint Petersburg, 190013, Russia
UDK: 616.288,1-007.271-089-884
DOI: https://doi.org/10.18692/1810-4800-2019-3-39-43
ABSTRACT
The article is devoted to the problem of acquired atresia of the external auditory canal. Surgical treatment of this patologie have high risk of restenosis. We underwent surgical treatment of 40 people with acquired atresia of the external auditory canal various localization: 15 people with atresia in the membranous-cartilage part and 25 people with atresia in the bone part. Operations were performed in new ways. In atresia of the membranous-cartilaginous part, the method included the remove all cartilage of the membranous-cartilaginous part, the formation of two skin grafts on the base of the auricle, and fixation this grafts to the bone region of the external auditory canal. In case of atresia of the bone section, the method involves expansion of the external auditory canal due to drilling of anterior bone wall, formation of a skin graft on the supply base from the anterior wall of external auditory canal, long tamponade and the use silicone protector. For the prevention of postoperative restenosis, we developed method of treatment with injection of prolonged glucocorticosteroids in the tissue of the external auditory canal. The observation period ranged from 6 months to two years. None of the patients with atresia in the membranous-cartilage part developed restenosis. The observation period ranged from 6 months to two years. None of the patients with atresia in the membranous-cartilage department developed restenosis. Only 5 (20%) of 25 patients with atresia in the bone section developed restenosis. The developed methods of surgical treatment of acquired atresia of the external auditory canal are effective, and the use of injections of glucocorticosteroids in the tissue of the external auditory canal after surgery reduces the risk of recurrence of atresia and ensures a stable morphological result in 87.5% of all observations.
Publication date:
18.06.2019
Keywords:
acquired atresia, stenosis, external auditory canal, otosurgery, hearing-improving operation. For citation:
Eremin S. A. Efficiency methods of surgical correction acquired soft tissue atresia of the external auditory canal various localization. Rossiiskaya otorinolaringologiya. 2019;18(3):39–43. https://doi.org/ 10.18692/1810-4800-2019-3-39-43.