鼻内窥镜下经鼻手术治疗先天性后鼻孔闭锁

报告２例鼻内窥下经鼻手术治疗先天性后鼻孔闭锁。结果表明，鼻内窥检查结合轴位ＣＴ扫描是诊断本病的理想方法，认为鼻内窥下经鼻手术具有视野、操作准确、切除闭锁组织彻底、鼻咽侧粘膜易于完整保留和利用，手术损伤小、出血少及成功率高等优点，并指出术后定期鼻内窥检查及时去除创面肉芽和粘连，以保持后鼻孔通畅，是保证手术成功的重要一环。

Endoscopic transnasal repair of congenital choanal atresia

Two cases of congenital choanal atresia treated with endoscopic transnasal repairingwere reported.Nasal endoscopy and axial CT scanning are important for establishing the diagnosis.Endoscopic plastic operation for choanal atresia is the best procedure. There are following advantages:short approach,clear field of vision,complete resection of atresia plate, well preservation ofmucosa on the nasopharyngeal side of atresia plate,no side injury,less bleeding and higher success.The mucosa preserved completely on the nasopharyngeal side can totally cover the bare bonyedges. The endoscopy after operation is important to remain nasal patency.