Four Cases of Choanal Atresia Managed by Endoscopic Endonasal Repair / 대한이비인후과학회지

ABSTRACT

As a surgical treatment of congenital choanal atresia, transnasal approach has been more widely used with the development of endoscopic surgical techinque. We have experienced 4 cases of congenital choanal atresia, which were treated via transnasal endoscopic approach. Three cases were unilateral, and one case was bilateral. We have fenestrated the atretic plate under endoscopic guide using forceps, curette, and/or Nd-YAG laser. Silastic stents were inserted in two cases and left in place for 3 weeks. No restenosis developed in the two cases to which stents were applied, while restenosis developed in two cases without stents. Revision transpalatal approach was performed in one case with bilateral atresia. No complication such as palatal deformity was developed. Newly formed choanal opening had a tendency to decrease in size with the passage of time. So, the opening should be wider initially, and postoperive endoscopic follow-up is needed.