Abstract
Congenital atresia of the choanas (CVC) is a violation of the patency of the nasal cavity associated with its complete or partial infection of the connective, cartilage or bone tissue. CVC is a consequence of the preservation of the nasal palatine membrane, which occurs between the 6th and 12th weeks of gestation, due to the approach and successive fusion of the posterior edge of the opener with the posterior ends of the nasal concha. According to domestic and foreign literature, for 5000-7000 newborns there is 1 observation of CVC, the population frequency of congenital malformations in individual countries ranges from 2.7 to 16.3%. The deletion syndrome of the 22nd chromosome, described as Dee Georgi syndrome or cyclic cardiofacial syndrome, is a combination of morphological, immunological and neurological changes that are the result of a deletion of the long arm of 1 copy of the 22nd chromosome - del 22q11.2. In the classical concept, this syndrome is a triad consisting of congenital heart disease, thymus hypoplasia (aplasia) and hypocalcemia, as a result of parathyroid hypoplasia. Dee Georgi - syndrome (SDD) or the case of the 22nd chromosome is the most common problem among other mutations in the human genome, it is second only to Down syndrome, trisomy on the 21st chromosome. The frequency of occurrence varies from 1: 4000 to 1: 6000 newborns. This review seeks to assess the factors that influence the outcome of transnasal endoscopic restoration of the congenital atresia of the choan. The article presents a method for eliminating congenital atresia of the choan in a child with Dee Georges syndrome with transeptal access.
Published Version
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