Retrospective Study of a Series of Choanal Atresia Patients

Introduction  Although it has been more than 250 years since the first description of choanal atresia (CA), there are still doubts about this abnormality. The differences between unilateral and bilateral forms are seldom discussed. Objectives  Aggregate data from patients diagnosed with CA, grouping patients with unilateral and bilateral forms. Methods  Retrospective study. Results  Eighteen patients were included: 12 (66.6%) presented bilateral atresia, of which 77.8% were mixed bony-membranous type and 22.2% were pure bony type. From the 12 patients with bilateral atresia, 10 presen...