【摘要】 目的 探討經鼻胃鏡在食管狹窄擴張和支架置入術中的作用。 方法 2007年10月-2009年3月對28例癌性食管狹窄以及并發食管-氣管瘺的患者行PENTAX（EG-1580K）超細經鼻電子胃鏡檢查，計算插入深度，并進行擴張和支架治療，在胃鏡直視下調節輸送器內支架上端的位置，觀察擴張效果、支架放置成功率、定位的準確性以及并發癥情況。 結果 全部患者均行擴張治療，效果良好，支架一次性放置全部成功，定位準確，自膨滿意，最狹窄處的內徑由（4.8±1.2）mm擴至（12.5±1.5）mm，食管氣管瘺被覆蓋治療效果好，患者的吞咽困難評級由3.25±0.58降至0.94±0.59。 結論 在食管狹窄擴張和支架置入術中應用經鼻超細胃鏡患者依從性好，方法簡便，安全有效。【Abstract】 Objective To explore the role of nasal endoscopy in the esophagostenosis expansion and esophageal stent. Methods PENTAX (EG-1580K) ultrafine nasal endoscopy was used in 28 patients (October 2007-March 2009) with esophageal cancer complicated with esophagostenosis and fistula to check the e-calculated insertion depth, stent expansion and the average diameter expansion. The endoscopy was carried under the direct vision with the location of the top bracket in order to ensure the accurate stent placement, all without X-ray assist. The success rates of stent placement, positioning accuracy, as well as complications were evaluated. Results The expansion treatments were successful in all patients with one-off operation. The narrowest part increased from (4.9±1.6) mm to (12.7±1.5) mm, and the esophageal fistula was covered. The rating of dysphagia decreased from 3.15±0.68 to 0.91±0.49. Conclusion Nasal endoscopy is simple, safe and effective in the treatment of ultrafine expansion for esophagostenosis and stent implantation with good compliance.