بررسي نتايج درمان آترزي كوآن توسط جراحي آندوسكوپيك با اپروچ ترانس نازال

RESULTS OF ENDOSCOPIC SURGERY OF CHOANAL ATRESIA THROUGH TRANSNASAL APPROACH

Between 1997 and 2000, 12 Patients with choanal atresia underwent endoscopic surgery through transnasal approach. Mean age was 6.6years with a range of one month to 14 Years. 17% of patients had bilateral atresia and the remaining 83% had single sided atresia. Of those with single sided atresia, 70% were on the right side and 30% on the left side. 41% had membranous atresia and 59% were bony atresias. All were treated by endoscopic surgery.In bony atresias it was opened by microdrilling and in membranous ones, it was opened bycurette and circular punch. Stent tube was placed for all of them.Mean follow up time was 28.4 months. 9 patients had complete success with both choanae open. In the other 3 Patients nasal obstruction recurred, of which one of them under went revision. The other 2 patients refused revision surgery. No complications occurred in surgeries.Considering these results, in seems that endoscopic surgery of choanal atresia through transnasal approach is the best method, which due to excellent visualisation of the field, yields better results compared to classic surgical methods.