Transnasal Treatment of Congenital Choanal Atresia with the KTP Laser

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Abstract
This retrospective analysis presents a minimally invasive method for a transnasal approach to treat bilateral and unilateral choanal atresia and stenosis in infants and children. We describe an advanced surgical technique that applies the use of a KTP laser and give recommendations for preoperative diagnosis and postoperative assessment. We report 13 cases of bilateral and unilateral choanal atresia or stenosis treated over a 3½-year period. We used a transnasal approach and endoscopic control. For bilateral choanal atresia, the operation was performed within the first few days of birth. For unilateral choanal atresia or stenosis, surgery was performed several weeks after birth. In all cases, an intranasal stent was inserted. Our findings demonstrate that this transnasal approach provides significant benefits. A primary advantage is the diminished risk of intraoperative or postoperative complications. Additional benefits include lower rates of re-obstruction and a decreased incidence of subsequent disease, including chronic secretory otitis media.

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