Choanal atresia refers to a lack of formation of the choanal openings. It can be unilateral or bilateral. Epidemiology It frequently presents in neonates where it is . La atresia de coanas es una malformación congénita poco frecuente. Clásicamente se han descrito cuatro vías de abordaje para su corrección quirúrgica. A atresia de coanas é uma malformação congênita rara da cavidade nasal caracterizada pela obliteração completa da coana posterior. Nos 67% dos casos a.

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The material is in atressia way intended to replace professional medical care by a qualified specialist and should not be used as a basis for diagnosis or treatment. Age at the time of surgery. Mitomycin is an antineoplastic agent which inhibits fibroblast proliferation and the formation of granulation tissue.

Additional information Further information on this disease Classification s 3 Gene s 0 Disability Other website s 1. In most cases, atresi nasal tutor was maintained in place for 1 month. For all other comments, please send your remarks via contact us. CA is a congenital disorder that consists of a unilateral or bilateral bony afresia membranous septum between the nose and nasopharynx. The use of a tutor entails certain risks, including damage to the nasal mucosa by excessive pressure, resulting in granulation tissue and scar formation, bacterial overgrowth and blocking of mucus drainage.

Mixed bilateral choanal atresia was the most frequent 29 cases. Under general anaesthesia, after placing coanss gauze soaked in vasoconstrictor adrenaline 1: Two patients with permeable choanae remain with tracheotomy.


Long-term outcomes of endonasal surgery for choanal atresia: The variables analysed were gender, location and type of atretic plate, age at diagnosis, associated malformations, maternal history of hyperthyroidism treated with methimazole during pregnancy, mode of airway stabilisation prior to surgery, age at surgery, surgical technique, duration of the nasal stent, need for other treatments, complications, follow-up time and evolution.

Examples include the craniosynostosis syndromes such as Crouzon syndromePfeiffer syndromeTreacher Collins and Antley-Bixler syndrome. Clinical features and surgical outcomes of congenital choanal atresia: Adequate nasal ventilation was achieved in 46 patients coajas We describe our experience in transnasal microsurgical treatment of congenital choanal atresia.

Choanal atresia – Wikipedia

Once the nasal mucosa covering the atretic plate was removed, the plate and the posterior part of the vomer were extracted with microsurgical instrumentation ear curette or drill.

We highlight the importance of frequent postoperative nasal washes with saline solution and periodic endoscopic revisions to remove crusts and granulation tissue in neochoanae, in order to prevent restenosis. The success of surgery depends on several factors: Due to the advancement of nasal endoscopy and the development of small and specialised instrumentation, several authors prefer endoscopic surgery for the treatment of CA.

Hospital discharge took place at 2 to 15 days after surgery, depending on the associated anomalies and where the patient lived. Respecting the anatomical reference points: From Wikipedia, the free encyclopedia.

All images were digitally documented. Two patients presented septoturbinal synechiae, which were resolved using CO 2 laser. Loading Stack – 0 images remaining. Si continua navegando, consideramos que acepta su uso. This high percentage could be influenced by many years of monitoring, a high proportion of bilateral cases, and removal of the nasal stent under general anaesthesia removal of the stent was only performed without general anaesthesia in the initial years.


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Repair of acquired posterior coaans stenosis and atresia by temperature-controlled radio frequency with the aid of an endoscope.

The transnasal approach including the use of a microscope is a safe and effective procedure.

The edges of the neochoana were smoothed and the bone surface was covered with mucosa. Case 2 Case 2. You can change the settings or obtain more information by clicking here.

Are stents necessary after choanal atresia repair?. We achieved normal nasal ventilation in 46 patients CA is suspected upon an absence of motion of a wisp of cotton or absence of fogging in a mirror placed under the nostrils while the mouth is closed, and also by impossibility of introducing an 8 French probe 2.

The goal of initial treatment for infants with bilateral CA is to maintain an adequate airway via the oral route. From we began using topical mitomycin C 0. Nine patients had complications. Necrosis of posterior part of the septum. Support Radiopaedia and see fewer ads. Edit article Share article View revision history. The increasing range of instrumentation available allows surgeons to make increasingly accurate incisions in the mucosa and bone resections.