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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Also any condition that causes significant depression of the nasal bridge or midface retraction can be associated with choanal atresia. Although the need for a tutor is not universally accepted, its use is justified by preventing restenosis during the reepithelialisation of the neochoana.

SRJ is a prestige metric based on the idea that not all citations are the same. Transpalatal surgery offers excellent exposure, with its main disadvantage being its effect on the growing afresia severe deformities, crossbite. Cochrane Database Syst Rev, 2pp. 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.

CiteScore measures average citations received per document published. Its advantages are speed and availability, but it is associated to a need for several additional revisions and a high probability of complications cerebrospinal fluid leak and meningitis caused by atrezia of the cribriform plate.

Se continuar a navegar, consideramos que aceita o seu uso. Si continua navegando, consideramos que acepta su uso. Views Read Edit View history. Respecting the anatomical reference points: Endoscopic transeptal surgery for choanal atresia with a stentless folded-over-flap technique.

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Adequate nasal ventilation was achieved in 46 patients To improve our services and products, we use “cookies” own or third parties authorized to show advertising related to client preferences through the analyses of navigation customer behavior. Clinical features and surgical outcomes of congenital choanal atresia: 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.

These cases remain asymptomatic and without clinical evidence of restenosis at 3. Type of atretic plate. An oral airway or a feeding nipple with large holes to facilitate air flow can be used. It is thought that the maternal disease is the causal factor, rather than treatment with methimazole.

However, some studies have compared the endoscopic transnasal technique with the non-endoscopic option and have not found significant differences in the surgical results. Some consider as revision the additional removal of tissue, whilst others define it as any procedure under general anaesthesia subsequent to surgery, including the removal of a nasal stent.

It is more common among females and the most common type of atretic plate is the right unilateral. Necrosis of nasal mucosa.

Atresia of the choanae Choanal atresias. The atretic plate was bilateral in 33 patients Blind transnasal puncture with a trocar has ceased to be the method of choice. About Blog Go ad-free.

Exposure in utero to maternal hyperthyroidism treated with methimazole.

Atresia de Coanas by Mery Hernandez on Prezi

Two patients presented septoturbinal synechiae, which were resolved using CO 2 laser. Computed tomography of the craniofacial complex.

Eur Arch Otorhinolaryngol,pp. Stentless endoscopic transnasal repair of bilateral choanal atresia starting with resection of vomer. Articles Cases Courses Quiz. Avoiding bone ridges smoothing the edges, without leaving round-shaped orifices and covering the bone surface with mucosa. The documents contained in this web site atdesia presented for information purposes only. Please cite this article as: Patients who Required Postoperative Revisions. Neonates with bilateral CA can also present with a history of multiple failed extubation attempts, especially in those with secondary airway issues.


Initial clinical evaluation includes introduction of a 6 or 8 French atresiw catheter via the nostrils, methylene blue dye test, cotton wisp test, and laryngeal mirror test.

This high percentage could be influenced by many coanad 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.

During the time the nasal tutor was maintained, patients underwent nasal washes with saline solution through the stent, aspiration of secretions as required and nasal mupirocin to prevent lesions by decubitus position thereof.

Choanal atresia

Congenital disorders of respiratory system. Among the bilateral cases, The goal of initial treatment for infants with bilateral CA is to maintain an adequate airway via the oral route.

Operative management of choanal atresia: Once the nasal mucosa covering the atretic plate was removed, the plate and the posterior part of the vomer were extracted with coajas instrumentation ear curette or drill.

The edges of the neochoana were smoothed and the bone surface was covered with mucosa. Types of choanal atresia. We observed the association of this condition with prenatal exposure to maternal hyperthyroidism treated with attresia.

Choanal atresia CA is a congenital anomaly of the posterior nasal airway characterized by the obstruction of one unilateral or both bilateral choanal aperture swith clinical manifestations ranging from acute respiratory distress to chronic nasal obstruction. Temporary alleviation can be achieved by inserting an oral airway into the mouth. D ICD – Unilateral choanal atresia presents late and can be asymptomatic or present with rhinorrhoea.